32nd week of 2022 patent applcation highlights part 76 |
Patent application number | Title | Published |
20220256104 | DIGITAL DETECTOR WITH DIGITAL CHARGE INTEGRATION - A digital detector includes a planar sensor and a first monolithic substrate and a second monolithic substrate, the planar sensor being positioned on the first monolithic substrate, the detector comprising, on the first monolithic substrate: a set of pixels organized into a matrix array along rows and down columns and configured so as to generate charges on the basis of radiation; b. column conductors, each connecting the pixels of one same column and intended to carry the charges generated by the pixels; on the second monolithic substrate: c. for each of the column conductors, a charge preamplifier connected to the column conductor, forming a preamplified column conductor that is intended to integrate the charges carried by said column conductor; d. at least one analogue-to-digital converter connected in series to the preamplified column conductors, intended to convert the integrated charges at the output of the charge preamplifiers into a digital voltage; e. a serializer block connected to the at least one analogue-to-digital converter, intended to generate an output voltage. | 2022-08-11 |
20220256105 | IMAGING CONTROL DEVICE, IMAGING CONTROL METHOD, PROGRAM, AND IMAGING DEVICE - An imaging element of an imaging unit | 2022-08-11 |
20220256106 | IMAGING DEVICE AND CONTROL METHOD - An imaging device includes: a plurality of pixels arrayed in a matrix, the plurality of pixels respectively including photoelectric converters that convert light into signal charge and charge accumulators that accumulate the signal charge; and a control circuit. The control circuit causes pixels included in the plurality of pixels and belonging to at least one row to sequentially perform, for each row or for two or more rows at a time, a reset operation for initializing potentials of the charge accumulators, before receiving a trigger signal for giving an instruction for starting exposure, and causes, after receiving the trigger signal, the plurality of pixels to simultaneously perform an exposure operation for accumulating the signal charge in the charge accumulators without causing the pixels included in the plurality of pixels and belonging to at least one row to perform the reset operation. | 2022-08-11 |
20220256107 | IMAGE SENSOR AND ANALOG-TO-DIGITAL CONVERTER - An image sensor includes: a pixel of a first tab; a pixel of a second tab; an operation amplifier suitable for comparing, in a comparison operation, a pixel signal of the first tab and a pixel signal of the second tab with each other to produce a comparison result, receiving, in an auto-zeroing operation, a ramp voltage and a selected pixel signal which is selected based on the comparison result between the pixel signal of the first tab and the pixel signal of the second tab, and receiving, in an analog-to-digital conversion operation, the ramp voltage and an unselected pixel signal which is not selected from the pixel signal of the first tab and the second pixel signal of the second tab; and a counter circuit suitable for generating a digital code based on an output of the operation amplifier. | 2022-08-11 |
20220256108 | SOLID-STATE IMAGING DEVICE AND METHOD FOR DRIVING THE SAME, AND ELECTRONIC APPARATUS - The present technology relates to a solid-state imaging device, method for driving the same, and electronic apparatus capable of avoiding an occurrence of a blackout in low-speed read-out. | 2022-08-11 |
20220256109 | PIXEL COLLECTION CIRCUIT AND IMAGE SENSOR - The present disclosure provides a pixel collection circuit and an image sensor. The image collection circuit includes: a movement detection module configured to detect a change in a light intensity in a field of view, and generate a pixel triggering signal when the change in the light intensity exceeds a predetermined threshold so as to indicate the pixel collection circuit to be in a triggered state; and a time signal generation module coupled to the movement detection module and configured to generate a time signal upon the receipt of the pixel triggering signal, the time signal being used to represent time information about a time point at which the pixel collection circuit is triggered. The movement detection module and the time signal generation module are coupled to a reading unit, so that the reading unit scans the pixel collection circuit to output the time information about the pixel collection circuit. | 2022-08-11 |
20220256110 | RECORDING REPRODUCTION APPARATUS, RECORDING REPRODUCTION METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM - A recording reproduction apparatus according to the present disclosure includes: a captured data acquisition unit that acquires first captured data captured by a first camera that captures an image of an outside of a vehicle; an event detection unit that detects an event regarding the vehicle; a recording controller that stores the first captured data in a period including at least a timing of occurrence of the event as event recording data; a reproduction controller that reproduces the event recording data; a display controller that causes a display unit to display the event recording data reproduced by the reproduction controller; and an attachment/detachment detection unit that detects an attachment/detachment state of the display unit to/from the vehicle, in which the reproduction controller starts, when it has been detected by the attachment/detachment detection unit that the display unit has been detached from the vehicle, reproduction of event recording data. | 2022-08-11 |
20220256111 | Recorded Content Managed for Restricted Screen Recording - In aspects of recorded content managed for restricted screen recording, a wireless device displays digital image content, and a screen recording session captures the digital image content and audio data. The wireless device implements a content control module that determines a device application restricts the screen recording session from capturing the media content. The content control module can then pause the screen recording session for a time duration that the device application restricts the screen recording session, and then resume the screen recording session after a determination that the screen recording session is no longer being restricted. As an alternative to pausing the screen recording session, the content control module can add a start delimiter to indicate a beginning section of the screen recording session being restricted by the device application, and add an end delimiter to indicate an end section of the screen recording session being restricted. | 2022-08-11 |
20220256112 | VIDEO SIGNAL PROCESSING APPARATUS, VIDEO SIGNAL PROCESSING METHOD, AND VIDEO SIGNAL PROCESSING SYSTEM - [Object] To contribute to the achievement of a workflow in which an HDR video and an SDR video are compatible with each other. | 2022-08-11 |
20220256113 | VIDEO SIGNAL CONVERSION DEVICE - A video signal conversion device includes a frontend interface circuit, a FPGA video processor and a backend interface circuit. The frontend interface circuit receives a HDR video input signal from a video transmitting device. The FPGA video processor outputs a SDR first video output signal. A video receiving device receives the first video output signal and a HDR second video output signal from the FPGA video processor through the video bridge controller of the backend interface circuit by PCI-E. | 2022-08-11 |
20220256114 | SYSTEM AND METHOD FOR AUTOMATICALLY ADJUSTING KEY FRAME QUANTIZATION PARAMETER AND FRAME RATE - A new real-time video communication device improves the clarity of shared screen by automatically adjusting the key frame's quantization parameter values. The adjustment depends on the underlying network's connection condition. When the connection bandwidth deteriorates, the key frame's quantization parameter value is further decreased on the value output from a standard H.264 encoder to derive a desirable quantization parameter value and thus achieve a desirable user experience of the shared screen. Moreover, the new real-time video communication device adjusts the frame rate of the shared screen based on the present quantization parameter value to achieve a more desirable user experience of the screen sharing. | 2022-08-11 |
20220256115 | METHOD, SYSTEM, AND NON-TRANSITORY COMPUTER READABLE RECORD MEDIUM FOR PROVIDING COMMUNICATION USING VIDEO CALL BOT - A method, a system, and a non-transitory computer-readable record medium for providing a communication using a video call bot are disclosed. A video call method implemented by a computer apparatus, may include: in response to a request for inviting a chat bot to a video call in which a plurality of users comprising a user of the computer apparatus participate, displaying the chat bot on a display screen for the video call; transmitting, to a server, a command line that is associated with the chat bot and is extracted from an a voice input that is input to the computer apparatus during the video call; and in response to the command line, outputting a response to the command line through the chat bot that participates in the video call. | 2022-08-11 |
20220256116 | SMART WEBCAM SYSTEM - Embodiments of the disclosure generally relate to video-conferencing systems, and more particularly, to advanced camera devices with integrated background differentiation capabilities, such as background removal, background replacement, and/or background blur capabilities, which are suitable for use in a video-conferencing application. Generally, the camera devices described herein use a combination of integrated hardware and software to differentiate between the desired portion of a video stream and the undesired portion of the video stream to-be-replaced. The background differentiation and/or background replacement methods disclosed herein are generally performed, using a camera device, before encoding the video stream for transmission of the video stream therefrom. | 2022-08-11 |
20220256117 | INFORMATION PROCESSING APPARATUS AND COMPUTER READABLE MEDIUM - An information processing apparatus including a processor configured to: allow, in relation to a conference via a communication line in which plural participants participate, plural business card images to be displayable on a terminal of a participant among the plural participants, the plural business card image being images that are obtained by reading business cards of the plural participants including at least one other participant. | 2022-08-11 |
20220256118 | SYSTEM AND METHOD FOR RECORDING ONLINE COLLABORATION - An online collaboration recording system for recording an online collaboration session, includes a computing arrangement in communication with a plurality of devices, wherein each device is accessible by a user during the online collaborating session, wherein in operation the computing arrangement executes instructions to synchronize a digital project in said online collaborating session amongst the plurality of devices, by: establishing, via communication module, said online collaboration session for performing collaborative work on digital project, the digital project comprising at least one object; receiving, via the communication module or an input interface, a first user input and based thereon modifying one or more properties of at least one object to form at least one modified object; recording temporally, via a recorder, at least one state of at least one modified object to compile a temporal record; and synchronizing, via the communication module, temporal record amongst the plurality of devices. | 2022-08-11 |
20220256119 | MEDICAL IMAGE ASSISTANCE SYSTEM AND MEDICAL IMAGE ASSISTANCE METHOD - A medical image assistance system and a medical image assistance method are provided. During a medical process, an image capturing apparatus located at a local location captures a first image and transmits the first image to a control device located at the local location, and the control device transmits the first image captured by the image capturing apparatus to an electronic apparatus located at a remote location. The electronic apparatus performs a marking operation on the first image to generate a second image, and transmits the second image to the control device. The control device transmits the second image to a head-mounted display apparatus located at the local location so that the head-mounted display apparatus simultaneously displays the second image and a real-time local image. The first image and the second image are at least partially the same in content. | 2022-08-11 |
20220256120 | IMAGE-STREAM WINDOWING SYSTEM AND METHOD - An image-stream windowing method includes capturing, with a camera located at a fixed position and having a fixed field of view, a high-resolution image stream of an object that moves during said capturing. The high-resolution image stream includes a sequence of high-resolution frames. The method also includes determining, for each high-resolution frame of the sequence of high-resolution frames, a respective window, of a sequence of windows corresponding to the sequence of high-resolution frames, that encloses the object within said each high-resolution frame. The size and location of the respective window are determined based at least on the fixed position, the fixed field of view, and a position of the object. The method also includes generating a low-resolution image stream from the high-resolution image stream by cropping said each high-resolution frame with its respective window. | 2022-08-11 |
20220256121 | METHOD AND APPARATUS FOR INTERACTION WITH AN INTELLIGENT PERSONAL ASSISTANT - Aspects of the present invention are directed towards a more natural way to interact with an intelligent personal assistant. An intelligent personal assistant comprises a camera that provides images of an area surrounding the assistant. The assistant monitors images provided by the camera to determine when a user is addressing the assistant. When voice input is received after determining that a user is addressing the assistant, the assistant understands that the voice input is intended for the assistant, and acts on the voice input to respond to the user. | 2022-08-11 |
20220256122 | SYSTEMS AND METHODS FOR DYNAMIC POWER SHARING - Systems and methods for managing current flow in a power circuit used to dynamically share power are disclosed. A Zener diode may automatically adjust current flow in the power circuit. If the power circuit has not received sufficient current for dynamic power sharing, the Zener diode may draw additional current from a power source. An electrical current in the power circuit may be divided into a plurality of current loads. Each of the plurality of current loads may be directed through a different path in the power circuit. | 2022-08-11 |
20220256123 | ENHANCED SENSOR OPERATION - A two-dimensional image of a vehicle occupant in a vehicle is collected. The collected two-dimensional image is input to a machine learning program trained to output one or more reference points of the vehicle occupant, each reference point being a landmark of the vehicle occupant. One or more reference points of the vehicle occupant in the two-dimensional image is output from the machine learning program. A location of the vehicle occupant in an interior of the vehicle is determined based on the one or more reference points. A vehicle component is actuated based on the determined location. For each of the one or more reference points, a similarity measure is determined between the reference point and a three-dimensional reference point, the similarity measure based on a distance between the reference point and the three-dimensional reference point. | 2022-08-11 |
20220256124 | RECORDING SYSTEM, RECORDING METHOD, AND PROGRAM - A recording system includes a shooting data acquisition unit, a passenger detection unit, a driver detection unit, a determination unit, and a recording control unit. The shooting data acquisition unit acquires shooting data from a camera for taking an image of inside/outside of a vehicle in which a driver and a passenger ride. The passenger detection unit detects at least the passenger. The driver detection unit detects the driver in a predetermined range. The determination unit determines whether the passenger inside the vehicle has gotten out thereof. The recording control unit instructs, after the driver detection unit no longer detects the driver detected until then, when the determination unit determines that the passenger has gotten out of the vehicle, a recording device to record the shooting data of the outside thereof. | 2022-08-11 |
20220256125 | CONTROL DEVICE, MEDICAL OBSERVATION SYSTEM, CONTROL METHOD, AND COMPUTER READABLE RECORDING MEDIUM - A control device includes: generation circuitry configured to output a field signal to a medical imaging device; first detection circuitry configured to detect a horizontal synchronization signal from video data output from the medical imaging device, the video data including at least the horizontal synchronization signal; and a monitoring circuitry configured to monitor whether or not an abnormality occurs in one frame period of the video data based on a period of the horizontal synchronization signal detected by the first detection circuitry for a predetermined n-th time after polarity of the field signal is switched. | 2022-08-11 |
20220256126 | CIRCUIT FOR CORRECTING LATERAL CHROMATIC ABBERATION - Embodiments relate to lateral chromatic aberration (LCA) recovery of raw image data generated by image sensors. A chromatic aberration recovery circuit performs chromatic aberration recovery on the raw image data to correct the resulting LCA in the full color images using pre-calculated offset values of a subset of colors of pixels. | 2022-08-11 |
20220256127 | IMAGE ENCODING APPARATUS, METHOD FOR CONTROLLING THE SAME, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM - This invention provides an image encoding apparatus operable to encode RAW image data obtained from a capturing sensor that has a color filter array in which a plurality of filters for each of three primary colors and a plurality of filters for a specific color for luminance are arranged in an N×N pixel region, where the image encoding apparatus comprises a conversion unit which converts the RAW image data into a plurality of planes each configured by a single color component; and an encoding unit which encodes each of the planes, wherein the conversion unit, for each component representing the three primary colors, by referencing pixel values of the same component in the N×N pixel region, generates a plane configured by a low-frequency component data and a plane configured by a high-frequency component. | 2022-08-11 |
20220256128 | CAMERA MODULE, CAMERA, TERMINAL DEVICE, AND METHOD FOR DETERMINING IMAGE INFORMATION - A camera module is provided. The camera module may be separately used as a camera, or may be applied to a terminal device such as a mobile phone or a tablet computer, or a vehicle-mounted device. The camera module includes an optical lens component, a light filtering layer, an image sensor and a drive module. The optical lens component is configured to receive a light beam from a photographed object, and transmit the light beam to the light filtering layer. The light filtering layer is configured to move a position under the drive of the drive module, and respectively transmit light signals filtered at different positions to the image sensor. The image sensor is configured to receive the light signals at the different positions from the light filtering layer, and determine image information based on the light signals at the different positions. | 2022-08-11 |
20220256129 | PROJECTION APPARATUS AND PROJECTION DISPLAY METHOD - A projection apparatus includes a light source assembly, a display control circuit, a light valve, a vibrating lens drive assembly, and a vibrating lens. The display control circuit is configured to obtain a plurality of sub-images; in a process of emitting beams of three primary colors by the light source assembly to the light valve sequentially, control, according to primary color parameters of the pixels in each sub-image, the light valve to sequentially reflect beams corresponding to the plurality of sub-images to the vibrating lens; and in a process of projecting each sub-image, transmit a vibrating lens current control signal corresponding to the sub-image to the vibrating lens drive assembly. The vibrating lens drive assembly is configured to provide at least one vibrating lens driving current to the vibrating lens according to the vibrating lens current control signal corresponding to the sub-image. | 2022-08-11 |
20220256130 | PROJECTION ADJUSTMENT SYSTEM AND METHOD, AND PROJECTION COLOR ADJUSTMENT SYSTEM AND METHOD - The present disclosure provides a projection adjustment system and method, and a projection color adjustment system and method. The projection adjustment system comprises an illumination module, a projection module, and a variable diaphragm control module, wherein the illumination module casts light carrying imaging information, wherein the projection module obtains the light carrying the imaging information and then casts it outward to a projection plane, wherein the variable diaphragm control module comprises at least one variable diaphragm and a controller, and wherein each variable diaphragm adjusts at least one diaphragm aperture of the variable diaphragm under the control of the controller, and the light intensity of the light cast outward is adjusted by reducing or enlarging the diaphragm aperture. | 2022-08-11 |
20220256131 | 360 VIDEO TRANSMISSION METHOD, 360 VIDEO RECEPTION METHOD, 360 VIDEO TRANSMISSION APPARATUS, AND 360 VIDEO RECEPTION APPARATUS - A video transmission method according to embodiments comprises: a pre-processing step for processing video data; a step for encoding the video data; and/or a step for transmitting a bitstream including the video data. A video reception method according to embodiments comprises the steps of: receiving video data; decoding the video data; and/or rendering the video data. | 2022-08-11 |
20220256132 | DEVICES AND METHODS FOR GENERATING AND RENDERING IMMERSIVE VIDEO - Immersive 3D video content includes a plurality of preferably overlapping cells, each cell representative of a volume in the content, wherein a cell providing both content corresponding to a virtual central camera in the cell and parallax information from virtual peripheral cameras around the centre position can be next to a cell providing only parallax information to be used with the content corresponding to the virtual central camera. A device for rendering immersive video, renders a viewpoint corresponding to a user's current position, tracks and predicts the user position, and if the user position moves to a cell with central camera content, retrieves the content and parallax information, and if the user position moves to a cell with only parallax information, retrieves the parallax information and, if necessary, also the cell with the content. This arrangement can reduce bandwidth and storage for the immersive 3D video content. | 2022-08-11 |
20220256133 | VIEWER-ADJUSTED STEREOSCOPIC IMAGE DISPLAY - A stereoscopic video playback device is provided that processes original stereoscopic image pairs taken using parallel-axis cameras and provided for viewing under original viewing conditions by scaling and cropping to provide new viewing condition stereoscopic video on a single screen. | 2022-08-11 |
20220256134 | A METHOD AND APPARATUS FOR DELIVERING A VOLUMETRIC VIDEO CONTENT - Methods, devices and data stream are provided for signaling and decoding information representative of restrictions of navigation in a volumetric video. The data stream comprises metadata associated to video data representative of the volumetric video. The metadata comprise data representative of a viewing bounding box, data representative of a curvilinear path in the 3D space of said volumetric video; and data representative of at least one viewing direction range associated with a point on the curvilinear path. | 2022-08-11 |
20220256135 | CAMERA APPARATUS FOR GENERATING SPATIALLY REPRESENTATIVE IMAGE DATA OF AN ENVIRONMENT - Cost-effective, spatially representative image data is recording in a stereoscopic or photogrammetric image of an environment by a camera apparatus having three holographic-optical elements arranged as coupling regions at different positions on a carrier medium to capture the environment from different perspectives. Light from the environment is coupled by the coupling regions into the carrier medium which provides a light guide that transfers the light to an additional holographic-optical element which provides a decoupling region to decouple the light from the carrier medium. An image capture device captures the decoupled light and produces image data therefrom. A separating device produces the spatially representative image data from the image data by capturing the light incident on the coupling regions in a manner separated temporally or by color. | 2022-08-11 |
20220256136 | STEREOSCOPIC IMAGE DISPLAY SYSTEM, STEREOSCOPIC IMAGE DISPLAY METHOD AND PROJECTOR - A stereoscopic image display system ( | 2022-08-11 |
20220256137 | POSITION CALCULATION SYSTEM - Embodiments employ one or more ellipses to determine distance and location in relation to a camera. The captured images of ellipses are analyzed to determine the size of the major axes of the ellipses in the captured image. From the size of the major axis, using mathematics, the distance from the camera can be computed. This distance from the camera combined with the location of the center of the ellipse in the captured image may then be used to locate the ellipse in X-Y-Z space. The ellipses may be placed on articles attached to the body or head of a person, such as a hat or glasses. | 2022-08-11 |
20220256138 | HEAD MOUNTED DISPLAY DEVICE AND METHOD FOR PROVIDING VISUAL AID USING SAME - An external scene image captured by an external scene imaging electronic camera attached to a head mounted display (HMD) is projected and displayed onto an image display screen arranged in front of the eyes of the user as a virtual image with a suitable viewing distance corresponding to the visual acuity of the user. At this time, for each object image presented in the virtual image of the external scene image, the virtual image is processed and formatted to add a predetermined degree of binocular disparity and image blur to the virtual image projected and displayed on the right and the left image display screen on the basis of a predetermined converted distance calculated from the real distance of each object. Thus, the user is given a sense of a realistic perspective for the virtual image of the external scene, free of the discomfort or unease. | 2022-08-11 |
20220256139 | IMAGE SENSING DEVICE AND OPERATING THE SAME - A method of operating an image sensing device includes applying control voltages to a pixel array in accordance with a test mode and performing an analog-to-digital conversion of a column line voltage to obtain one or more digital codes. The one or more digital codes are evaluated to detect an operating error associated with the column line and/or corresponding analog to digital converter. In response to an operating error, pixel values may be replaced or averaged with nearby pixel outputs not affected by the operating error. | 2022-08-11 |
20220256140 | VIDEO ENCODING METHOD AND APPARATUS, COMPUTER DEVICE, AND STORAGE MEDIUM - A method of video encoding is described. The method includes segmenting original video data to obtain an original video segment including multiple video images. Video content analysis is performed on the original video segment to obtain a video image processing parameter corresponding to the original video segment. Image processing is performed on a video image in the multiple video images in the original video segment based on the video image processing parameter to obtain a processed video segment. An encoding parameter of the processed video segment can be determined based on image feature data of the processed video segment. The processed video segment can be encoded based on the encoding parameter to obtain an encoded video segment. | 2022-08-11 |
20220256141 | METHOD AND APPARATUS OF COMBINED INTRA-INTER PREDICTION USING MATRIX-BASED INTRA PREDICTION - It is provided a method for combined inter-intra prediction of a current block in video coding wherein combined intra-inter-prediction is used for providing a prediction block and wherein the weights for the intra- and inter-prediction blocks used to obtain the prediction block can be finely tuned. In particular, the method comprises determining prediction information for a neighboring block adjacent to the current block, the prediction information comprising a prediction mode used for prediction of the neighboring block, determining whether matrix-based intra prediction, MIP, is to be used for the prediction of the current block and predicting the current block as a weighted sum of an intra-predicted block and an inter-predicted block, wherein weights of the inter-predicted block and the intra-predicted block are determined based on the prediction information for the neighboring block and the determining whether MIP is to be used for the prediction of the current block. | 2022-08-11 |
20220256142 | VIDEO CODING USING CROSS-COMPONENT LINEAR MODEL - A method and a computing device are provided for video coding. The method may include deriving parameter α and parameter β for a CCLM mode by using a predetermined number of neighboring reconstructed luma samples and chroma samples in a CU; and generating a final chroma predictor for the chroma samples of the CU by using the parameter α and the parameter β. | 2022-08-11 |
20220256143 | APPARATUS AND METHOD FOR VIDEO ENCODING OR DECODING - The present invention relates to efficient signaling of an intra prediction mode for predicting a current block in intra prediction coding. According to an aspect of the present invention, a video encoding apparatus divides dozens of intra modes into groups, selects a group to which an actual intra mode of the current block to be encoded belongs, and signals a value corresponding to the group. The video decoding apparatus acquires information on the group to which the actual intra mode of the current block belongs from a bit-stream and then evaluates intra modes belonging to the group to select a final intra mode. | 2022-08-11 |
20220256144 | APPARATUS AND METHOD FOR VIDEO ENCODING OR DECODING - The present invention relates to efficient signaling of an intra prediction mode for predicting a current block in intra prediction coding. According to an aspect of the present invention, a video encoding apparatus divides dozens of intra modes into groups, selects a group to which an actual intra mode of the current block to be encoded belongs, and signals a value corresponding to the group. The video decoding apparatus acquires information on the group to which the actual intra mode of the current block belongs from a bit-stream and then evaluates intra modes belonging to the group to select a final intra mode. | 2022-08-11 |
20220256145 | Method and Apparatus of Cross-Component Adaptive Loop Filtering for Video Coding - Methods and apparatus for loop-filter processing of reconstructed video are disclosed. According to one method, multiple CC-ALF (Cross-Component Adaptive Loop Filter) filters are used. Selection of the multiple CC-ALF filters can be signalled in one APS (Adaptation Parameter Set). According to another method, the CC-ALF can be implemented according to the difference between a to-be-process sample and its neighbouring sample. | 2022-08-11 |
20220256146 | INTERPLAY BETWEEN SUBPICTURES AND IN-LOOP FILTERING - An example method of video processing includes determining, for a conversion between a block of a first sub-picture of a video and a bitstream representation of the video, whether to apply a deblocking process across an edge between the block and a neighboring block of a second sub-picture based on whether a loop filtering process is allowed across subpicture boundaries. The method also includes performing the conversion based on the determining. | 2022-08-11 |
20220256147 | METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE INFORMATION - A deblocking filtering method, a boundary strength (bS) deriving method, and encoding/decoding method and apparatus using the methods are provided. The bS deriving method includes the steps of: deriving a boundary of a deblocking filtering unit block which is a unit block on which deblocking filtering is performed; and setting a bS for each bS setting unit block in the deblocking filtering unit block. Here, the step of setting the bS includes setting a bS value of a target boundary corresponding to the boundary of the deblocking filtering unit block as the bS setting unit block. | 2022-08-11 |
20220256148 | SYNTAX CONSTRAINTS IN PARAMETER SET SIGNALING OF SUBPICTURES - An example method of video processing includes performing a conversion between a picture of a video and a bitstream representation of the video. The picture includes one or more sub-pictures, and the bitstream representation conforms to a format rule that specifies that a length of a syntax element is equal to Ceil(Log 2(SS)) bits. SS is greater than 0, and the syntax element indicating a horizontal or a vertical position of a top-left corner of a coding tree unit of a sub-picture of the picture. | 2022-08-11 |
20220256149 | ENCODER, DECODER, ENCODING METHOD, AND DECODING METHOD - Provided is an encoder which includes circuitry and memory. Using the memory, the circuitry splits an image block into a plurality of partitions, obtains a prediction image for a partition, and encodes the image block using the prediction image. When the partition is not a non-rectangular partition, the circuitry obtains (i) a first prediction image for the partition, (ii) a gradient image for the first prediction image, and (iii) a second prediction image as the prediction image using the first prediction image and the gradient image. When the partition is a non-rectangular partition, the circuitry obtains the first prediction image as the prediction image without using the gradient image. | 2022-08-11 |
20220256150 | TRANSFORM-BASED METHOD FOR CODING IMAGE, AND DEVICE THEREFOR - A method for decoding an image according to the present document may comprises the steps of: deriving a modified transform coefficient; checking whether the tree type for a current block is a dual tree chroma; determining whether an MIP mode applies to the current block on the basis of the current block not being the dual tree chroma; determining whether an LFNST application width and an LFNST application height corresponding to the current block are 16 or greater, on the basis of the MIP mode being applied to the current block; and parsing an LFNST index on the basis of the LFNST application width and the LFNST application height being 16 or greater. | 2022-08-11 |
20220256151 | IMAGE PROCESSING DEVICE AND METHOD - The present disclosure relates to an image processing device and method capable of curbing an increase in a coding/decoding load. | 2022-08-11 |
20220256152 | IMAGE ENCODING METHOD AND APPARATUS, AND IMAGE DECODING METHOD AND APPARATUS - Provided is a method of decoding motion information characterized in that information for determining motion-related information includes spatial information and time information, wherein the spatial information indicates a direction of spatial prediction candidates used for sub-units from among spatial prediction candidates located on a left side and an upper side of a current prediction unit, and the time information indicates a reference prediction unit of a previous picture used for prediction of the current prediction unit. Further, an encoding apparatus or a decoding apparatus capable of performing the above described encoding or decoding method may be provided. | 2022-08-11 |
20220256153 | FLEXIBLE QUANTIZATION - A digital media encoder/decoder uses a flexible quantization technique that provides the ability to vary quantization along various dimensions of the encoded digital media data, including spatial, frequency sub bands and color channels. The codec utilizes a signaling scheme to signal various permutations of flexible quantization combinations efficiently for primary usage scenarios. When a choice of quantizer is available, the codec efficiently encodes the current quantizer by defining a subset of quantizers and indexes the current quantizer from the set. | 2022-08-11 |
20220256154 | FLEXIBLE QUANTIZATION - A digital media encoder/decoder uses a flexible quantization technique that provides the ability to vary quantization along various dimensions of the encoded digital media data, including spatial, frequency sub bands and color channels. The codec utilizes a signaling scheme to signal various permutations of flexible quantization combinations efficiently for primary usage scenarios. When a choice of quantizer is available, the codec efficiently encodes the current quantizer by defining a subset of quantizers and indexes the current quantizer from the set. | 2022-08-11 |
20220256155 | VIDEO ENCODING METHOD, ENCODING PROCESSING METHOD, AND VIDEO ENCODING APPARATUS - A video encoding method includes: storing quantized data of frames which have undergone a quantization process by serially storing the quantized data of the frames on a per quantized data of one frame basis; determining a quantization parameter to be used when performing a quantization process of a next frame immediately following the frames, based on quantized data of a predetermined number of frames among the quantized data of the frames; performing the quantization process of the next frame based on the quantization parameter to generate quantized data of the next frame; | 2022-08-11 |
20220256156 | REPRODUCTION CONTROL OF SCENE DESCRIPTION - A media rendering device and method for reproduction control of scene description is provided. The media rendering device retrieves media content that includes a set of filmed scenes and text information. The text information includes video description information and timing information. The video description information describes a filmed scene in the set of filmed scenes. The media rendering device further extracts the timing information to reproduce the video description information from the text information of the filmed scene. The media rendering device further controls the reproduction of the video description information in either a textual representation or in a textual and audio representation at a first-time interval indicated by the extracted timing information of the filmed scene. | 2022-08-11 |
20220256157 | METHOD AND APPARATUS FOR PROCESSING IMAGE SIGNAL CONVERSION, AND TERMINAL DEVICE - Embodiments of this application provide a method for processing image signal conversion, including: obtaining a primary color component of a to-be-processed pixel; and converting a first value of the primary color component into a second value based on a preset dynamic range conversion model, where the dynamic range conversion model is: | 2022-08-11 |
20220256158 | DECODING METHOD, ENCODING METHOD, AND TRANSFER DEVICE FOR CODING EFFICIENCY - According to an embodiment, an encoding device includes a deriving unit and an encoding unit. The deriving unit is configured to derive a first reference value based on fixed point precision representing roughness of a weighting factor that is used for multiplying a reference image. The encoding unit is configured to encode a first difference value that is a difference value between the weighting factor and the first reference value and the fixed point precision. The weighting factor is included in a first range of predetermined bit precision having the first reference value at approximate center. The first difference value is in the predetermined range. | 2022-08-11 |
20220256159 | COMPRESSION WITH POSITIVE RECONSTRUCTION ERROR - A method of compressing a frame in an image compression and storage system, the method including applying a modulo addition to a residue of an original sample of the frame to generate a biased residue based on a bit depth of the original sample and a maximum allowed error, quantizing the biased residue based on the maximum allowed error to generate a quantized biased residue, and encoding a value corresponding to the quantized biased residue to generate an encoded value that has a non-negative reconstruction error. | 2022-08-11 |
20220256160 | IMAGE DECODING METHOD FOR PERFORMING BDPCM ON BASIS OF BLOCK SIZE AND DEVICE THEREFOR - An image decoding method performed by a decoding device according to this document comprises the steps of: determining whether the width and the height of a current block are smaller than or equal to the size of a maximum transform block; when the width and the height are smaller than or equal to the size of the maximum transform block, obtaining a BDPCM flag representing whether or not to apply BDPCM for the current block; deriving prediction samples for first and second samples of the current block on the basis of the BDPCM flag; deriving residual samples on the basis of received residual information; and deriving reconstructed samples for the first and second samples on the basis of the prediction samples and the residual samples. | 2022-08-11 |
20220256161 | METHOD AND APPARATUS FOR VIDEO ENCODING AND DECODING WITH MATRIX BASED INTRA-PREDICTION - Different implementations are described, particularly implementations for video encoding and decoding based on linear weighted intra prediction, also called matrix based intra prediction, are presented. Accordingly, for a block being encoded or decoded in linear weighted intra prediction, obtaining intra predicted samples from at least two matrix-vector products between at least two selected weight matrices of reduced size and a set of neighboring reference samples. Advantageously, such arrangement allows to reduce the amount of memory for storing data and to reduce the complexity of the intra prediction samples computation. | 2022-08-11 |
20220256162 | IMAGE ENCODING/DECODING METHOD AND DEVICE FOR PERFORMING PROF, AND METHOD FOR TRANSMITTING BITSTREAM - An image encoding/decoding method and apparatus are provided. An image decoding method according to the present disclosure is performed by an image decoding apparatus. The image decoding method may comprise deriving a prediction sample of a current block based on motion information of the current block, determining whether prediction refinement with optical flow (PROF) applies to the current block, deriving, based on that the PROF applies to the current block, a difference motion vector for each sample position in the current block, deriving a gradient for each sample position in the current block, deriving a PROF offset based on the difference motion vector and the gradient, and deriving a refined prediction sample for the current block based on the PROF offset. | 2022-08-11 |
20220256163 | VIRTUAL BOUNDARY PROCESSING FOR ADAPTIVE LOOP FILTERING - A method for encoding or decoding an image of a video sequence is provided. The method comprises obtaining a set of sample values associated with the image. The method comprises determining a relative location of the current sample value with respect to a virtual boundary. The virtual boundary is defined with respect to a block boundary between the first block of sample values and a second block of sample values. The virtual boundary is parallel with the block boundary and separated from the block boundary by at least one row or column of sample values included in the first block of sample values. The method comprises a filter strength value based on the determined relative location of the current sample value with respect to the virtual boundary. The method comprises filtering the current sample value based on the selected filter strength value. | 2022-08-11 |
20220256164 | Data Compression and Packing - A method of data compression includes receiving input pixel data for a block of data in raster scan order where the pixel data comprises at least red, green and blue channel data for each pixel. The pixel data is compressed using a block-based encoding scheme and then the compressed pixel data is output substantially in raster scan order. | 2022-08-11 |
20220256165 | IMAGE/VIDEO CODING METHOD AND DEVICE BASED ON BI-PREDICTION - An image decoding method according to the present document comprises the steps of: acquiring, from a bitstream, image information including prediction-related information and residual information; deriving an inter prediction mode for a current block on the basis of the prediction-related information; deriving motion information of the current block on the basis of the inter prediction mode, wherein the motion information includes an L0 motion vector for L0 prediction and an L1 motion vector for L1 prediction; generating prediction samples of the current block on the basis of the motion information; deriving residual samples on the basis of the residual information; and generating reconstructed samples on the basis of the prediction samples and the residual samples. | 2022-08-11 |
20220256166 | MOTION VECTOR HANDLING IN GEOMETRY PARTITION MODE - A method of video processing is described. The method includes performing a conversion between a current video block of a video and a bitstream representation of the video, wherein, during the conversion, a prediction of the current video block is determined as a weighted sum of two or more predictions of the current video block, and a motion vector storing process for the current video block is determined according to a rule, wherein the current video block uses a partitioning prediction mode that is a first mode which is based on multiple first partitioning schemes or a second mode which is based on multiple second partitioning schemes, and wherein the rule specifies that a process used for determining which motion vector and how many motion vectors are stored is same for the first mode or the second mode. | 2022-08-11 |
20220256167 | INTRA BLOCK COPY SCRATCH FRAME BUFFER - An example apparatus includes a first frame buffer configured to store video data; a second frame buffer configured to store video data; and one or more processors configured to: reconstruct samples of a first block of a current picture of video data; store, in parallel, a compressed version of the samples of the first block of video data in the first frame buffer and an uncompressed version of the samples of the first block of video data in the second frame buffer; and responsive to determining to reconstruct a second block of the current picture of video data using intra block copy: obtain, from the second frame buffer, samples of a predictor block located in the current picture of video data, the predictor block at least partially overlapping the first block of video data; and predict, based on the obtained samples of the predictor block, samples of the second block. | 2022-08-11 |
20220256168 | TECHNIQUES FOR GENERATING PER-TITLE ENCODING LADDERS - In various embodiments, an encoding ladder application generates encoding ladders for encoding media titles. In operation, the encoding ladder application generates a first convex hull representing encoding tradeoffs between quality and bitrate when encoding a media title at a first resolution; The encoding ladder application generates a second convex hull representing encoding tradeoffs between quality and bitrate when encoding the media title at a second resolution. Based on the first convex hull and the second convex hull, the encoding ladder application generates an overall convex hull. Subsequently, the encoding ladder application generates an encoding ladder for the media title based on at least the overall convex hull and a ladder requirement. Advantageously, the tradeoffs between quality and bitrate represented by the encoding ladder are customized for the media title. Consequently, encoding inefficiencies attributable to conventional fixed-bitrate ladders can be reduced. | 2022-08-11 |
20220256169 | MACHINE LEARNING BASED RATE-DISTORTION OPTIMIZER FOR VIDEO COMPRESSION - Systems and techniques are described for data encoding using a machine learning approach to generate a distortion prediction {circumflex over (D)} and a predicted bit rate {circumflex over (R)}, and to use {circumflex over (D)} and {circumflex over (R)} to perform rate-distortion optimization (RDO). For example, a video encoder can generate the distortion prediction {circumflex over (D)} and the bit rate residual prediction | 2022-08-11 |
20220256170 | DECODING JOINTLY CODED TRANSFORM TYPE AND SUBBLOCK PATTERN INFORMATION - Techniques and tools are described for decoding jointly coded information. For example, a decoder decodes a variable length code [“VLC”] signaled at macroblock level that jointly represents a transform type signal level, transform type, and subblock pattern. The decoder decodes one or more VLCs signaled at block level, each jointly representing a transform type and subblock pattern. The decoder may select between multiple VLC tables for the VLCs signaled macroblock level and/or block level. | 2022-08-11 |
20220256171 | DECODING JOINTLY CODED TRANSFORM TYPE AND SUBBLOCK PATTERN INFORMATION - Techniques and tools are described for decoding jointly coded information. For example, a decoder decodes a variable length code [“VLC”] signaled at macroblock level that jointly represents a transform type signal level, transform type, and subblock pattern. The decoder decodes one or more VLCs signaled at block level, each jointly representing a transform type and subblock pattern. The decoder may select between multiple VLC tables for the VLCs signaled macroblock level and/or block level. | 2022-08-11 |
20220256172 | DC COEFFICIENT SIGNALING AT SMALL QUANTIZATION STEP SIZES - Described tools and techniques relate to signaling for DC coefficients at small quantization step sizes. The techniques and tools can be used in combination or independently. For example, a tool such as a video encoder or decoder processes a VLC that indicates a DC differential for a DC coefficient, a FLC that indicates a value refinement for the DC differential, and a third code that indicates the sign for the DC differential. Even with the small quantization step sizes, the tool uses a VLC table with DC differentials for DC coefficients above the small quantization step sizes. The FLCs for DC differentials have lengths that vary depending on quantization step size. | 2022-08-11 |
20220256173 | ELECTRONIC DEVICE AND METHOD FOR COMPRESSING VIDEO DATA - A computer-implemented method for compressing video data comprises receiving a sequence of video data values, each video data value being a digital value from a successive one of a plurality of pixels that form a video sensor, the sequence of video data values resulting from successive frames of video captured by the video sensor; extracting the video data values for each pixel in turn to create a plurality of pixel data streams, each pixel data stream including the video data value for each frame of captured video for the pixel; and applying data compression to each pixel data stream to create compressed data for each pixel data stream. | 2022-08-11 |
20220256174 | VIDEO OR IMAGE CODING BASED ON MAPPED LUMA COMPONENT AND SCALED CHROMA COMPONENT - According to the disclosure of the present document, a linear reshaper is used for LMCS and a single chroma residual scaling factor, which is directly signaled during chroma scaling of the LMCS, can be used. In addition, the number of flexible bins can be used for luma mapping so that the resource/cost (of software or hardware) required for an LMCS procedure is minimized, and the latency of coding is removed so that the LMCS procedure can be efficiently performed. | 2022-08-11 |
20220256175 | Hierarchical Video Encoders - A computer-implemented method for generating video representations utilizing a hierarchical video encoder includes obtaining a video, wherein the video includes a plurality of frames, processing each of the plurality of frames with a machine-learned frame-level encoder model to respectively generate a plurality of frame representations for the plurality of frames, the plurality of frame representations respective to the plurality of frames determining a plurality of segment representations representative of a plurality of video segments including one or more of the plurality of frames, the plurality of segment representations based at least in part on the plurality of frame representations, processing the plurality of segment representations with a machine-learned segment-level encoder model to generate a plurality of contextualized segment representations, determining a video representation based at least in part on the plurality of contextualized segment representations, and providing the video representation as an output. | 2022-08-11 |
20220256176 | SIGNALING FOR ADDITION OR REMOVAL OF LAYERS IN VIDEO CODING - In one embodiment, a method determines an encoded plurality of layers for a scalable video stream for a video where each of the plurality of layers includes a respective layer parameter setting. An additional layer for the plurality of layers is determined where the additional layer enhances a base layer in the plurality of layers and the respective layer parameter settings for the encoded plurality of layers do not take into account the additional layer. The method then determines an additional layer parameter setting for the additional layer. The additional layer parameter setting specifies a relationship between the additional layer and at least a portion of the plurality of layers where the additional layer parameter setting is used to decode the additional layer and the at least a portion of the plurality of layers. | 2022-08-11 |
20220256177 | ENCODING SYSTEM AND METHOD FOR DISPLAY STREAM COMPRESSION - This application relates to a display stream compression (DSC) encoding method in a DSC encoding hardware device. In one aspect, the method may include applying a DSC encoding setting variable set by a core. The method may also include reading an input video, received through a video receiver, from an image buffer in which the input video is stored. The method may further include receiving a DSC encoding operation execution command from the core and executing a DSC encoding operation on the basis of the DSC encoding setting variable. | 2022-08-11 |
20220256178 | Data Decompression and Packing - A method of data decompression includes receiving compressed pixel data substantially in raster scan order and determining a number of bits of compressed data that corresponds to one row of pixels. Then, for each group of pixels in the row, the method identifies a block-based decoding scheme for the group of pixels and decodes the group of pixels using the identified scheme. | 2022-08-11 |
20220256179 | PREDICTION DECODING METHOD AND APPARATUS - A prediction decoding method, a prediction decoding apparatus, and a non-transitory computer storage medium are provided. The method includes the following. First multiple neighbouring reference samples of a coding block are determined, where the first multiple neighbouring reference samples include reference samples in a reference row or a reference column neighbouring the coding block. Positions corresponding to K reference samples are determined from a starting position of the reference row or the reference column, where K is a positive integer. Second multiple neighbouring reference samples are determined according to the determined positions corresponding to the K reference samples, where the second multiple neighbouring reference samples include neighbouring reference samples among the first multiple neighbouring reference samples. Prediction decoding is performed on the coding block according to the second multiple neighbouring reference samples. | 2022-08-11 |
20220256180 | PREDICTION DECODING METHOD AND APPARATUS - A prediction decoding method, a prediction decoding apparatus, and a non-transitory computer storage medium are provided. The method includes the following. First multiple neighbouring reference samples of a coding block are determined, where the first multiple neighbouring reference samples include reference samples in a reference row or a reference column neighbouring the coding block. Positions corresponding to K reference samples are determined from a starting position of the reference row or the reference column, where K is a positive integer. Second multiple neighbouring reference samples are determined according to the determined positions corresponding to the K reference samples, where the second multiple neighbouring reference samples include neighbouring reference samples among the first multiple neighbouring reference samples. Prediction decoding is performed on the coding block according to the second multiple neighbouring reference samples. | 2022-08-11 |
20220256181 | IMAGE ENCODING/DECODING METHOD AND DEVICE - An image encoding/decoding method of the present invention constructs a merge candidate list of a current block, derives motion information of the current block on the basis of the merge candidate list and a merge candidate index, and performs inter prediction on the current block on the basis of the derived motion information, wherein the merge candidate list can improve encoding/decoding efficiency by adaptively determining a plurality of merge candidates on the basis of the position or size of a merge estimation region (MER) to which the current block belongs. | 2022-08-11 |
20220256182 | METHOD FOR ADAPTATION PARAMETER SET REFERENCE AND CONSTRAINTS IN CODED VIDEO STREAM - A method of decoding an encoded video bitstream using at least one processor, including: obtaining from the encoded video bitstream a coded video sequence including a picture unit corresponding to a coded picture; obtaining a picture header (PH) network abstraction layer (NAL) unit included in the picture unit; obtaining at least one video coding layer (VCL) network abstraction layer (NAL) unit included in the picture unit; decoding the coded picture based on the PH NAL unit, the at least one VCL NAL unit, and an adaptation parameter set (APS) included in an APS NAL unit obtained from the coded video sequence; and outputting the decoded picture, wherein the APS NAL unit is available to the at least one processor before the at least one VCL NAL unit. | 2022-08-11 |
20220256183 | REAL-TIME IMAGE GENERATION IN MOVING SCENES - A method comprising: receiving a high frame rate video stream of a scene, wherein the scene comprises at least one object in motion relative to an imaging device acquiring the video stream; continuously dividing, in real time, the video stream into at least one consecutive sequences of n frames each; with respect to each current sequence: (i) estimating pixel motion between at least some pairs of frames in the sequence, (ii) calculating a motion vector field for each pixel in the sequence, (iii) generating a representative frame which co-locates all of the pixels to respective pixel positions, based on the calculated motion vector fields, and (iv) aggregating, for each of the respective pixel positions, pixel values from all frames in the sequence; and outputting, in real time, a stream of the representative frames, wherein the stream has a lower frame rate than the high frame rate. | 2022-08-11 |
20220256184 | BIDIRECTIONAL INTER PREDICTION METHOD AND APPARATUS - Embodiments of this application relate to the field of video picture coding technologies, and disclose a bidirectional inter prediction method and apparatus, to improve coding efficiency. The method includes: obtaining indication information, where the indication information is used to indicate that second motion information is determined based on first motion information, the first motion information is motion information of a current picture block in a first direction, and the second motion information is motion information of the current picture block in a second direction; obtaining the first motion information; determining the second motion information based on the first motion information; and determining prediction samples of the current picture block based on the first motion information and the second motion information. | 2022-08-11 |
20220256185 | CONSTRAINING SUB-BLOCK MOTION VECTORS AND DETERMINING ADJUSTMENT VALUES BASED ON THE CONSTRAINED SUB-BLOCK MOTION VECTORS - An apparatus is provided and includes processing circuitry that determines a plurality of first sub-block motion vectors for a plurality of sub-blocks of a current block. The processing circuitry determines a plurality of second sub-block motion vectors by respectively constraining the plurality of first sub-block motion vectors according to a first target range. The processing circuitry determines a set of gradient values associated with a current sample location in a current sub-block from the plurality of sub-blocks according to a reference sub-block. The processing circuitry determines a set of adjustment values associated with the current sample location according to the set of gradient values and an adjustment vector associated with the current sample location. Further, the processing circuitry generates a predicted sample associated with the current sample location according to a combination of a corresponding sample in the reference sub-block and the set of adjustment values. | 2022-08-11 |
20220256186 | COMPOUND PREDICTION FOR VIDEO CODING - Generating a compound predictor block for a current block of video includes generating, for the current block, a first predictor block using one of inter-prediction or intra-prediction and generating a second predictor block. The first predictor block includes a first pixel and the second predictor block includes a second pixel that is co-located with the first pixel. A first weight is determined for the first pixel using a difference between a value of the first pixel and a value of the second pixel. A second weight is determined for the second pixel using the first weight. The compound predictor block is generated by combining the first predictor block and the second predictor block. The compound predictor block includes a weighted pixel that is determined using a weighted sum of the first pixel and the second pixel using the first weight and the second weight. | 2022-08-11 |
20220256187 | IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM HAVING BITSTREAM STORED THEREON - The present invention relates to a method for encoding and decoding an image. The method for decoding an image includes: deriving an initial motion vector from a merge candidate list of a current block; deriving a refined motion vector using the initial motion vector; and generating a prediction block of the current block using the refined motion vector. | 2022-08-11 |
20220256188 | PREDICTION IMAGE GENERATION DEVICE, MOVING IMAGE DECODING DEVICE, AND MOVING IMAGE CODING DEVICE - Coding efficiency is improved. A motion compensation filter unit acts on a motion vector applied image obtained by acting a motion vector on a reference image. The motion compensation filter unit causes filter coefficients mcFilter[i][k] designated by a phase i and a filter coefficient position k to act on the motion vector applied image. The filter coefficients mcFilter[i][k] includes filter coefficients calculated by using filter coefficients mcFilter[p][k] (p≠i) and filter coefficients mcFilter[q][k] (q≠i). | 2022-08-11 |
20220256189 | INTRA BLOCK COPY-BASED ENCODING/DECODING METHOD, DEVICE, AND BITSTREAM STORAGE MEDIUM - An image encoding/decoding method and apparatus are disclosed. The image decoding method includes acquiring prediction mode information of a current block from a bitstream, decoding an intra block copy prediction mode of the current block using the prediction mode information of the current block, and reconstructing the current block based on the intra block copy prediction mode. The intra block copy prediction mode is at least one of a block copy based SKIP mode, a block copy based MERGE mode or a block copy based AMVP mode. | 2022-08-11 |
20220256190 | POINT CLOUD DATA PROCESSING APPARATUS AND METHOD - A point cloud data processing method according to embodiments may comprise the steps of: encoding point cloud data including geometry information and attribute information; and transmitting a bitstream including the encoded point cloud data. | 2022-08-11 |
20220256191 | PANORAMIC VIDEO GENERATION METHOD, VIDEO COLLECTION METHOD, AND RELATED APPARATUS - A panoramic video generation method and a related apparatus are disclosed. A platform configured to generate a panoramic video receives a first video stream; and decompresses the first video streams, and determines a region of interest on the shooting site based on the plurality of decompressed first video streams. Then, the platform notifies at least one first video collection end that is capable of collecting the region of interest to compress collected video streams by using a second compression rate less than the first compression rate, to improve quality of the video streams of the region of interest. After receiving second video streams that are separately sent by the at least one first video collection end and that are compressed by using the second compression rate, the platform decompresses the second video streams, and generates a first panoramic video based on the plurality of decompressed second video streams. | 2022-08-11 |
20220256192 | IMAGE CODING METHOD, IMAGE DECODING METHOD, IMAGE CODING APPARATUS, AND IMAGE DECODING APPARATUS - An image coding method includes selecting two or more transform components from among a plurality of transform components that include a translation component and non-translation components, the two or more transform components serving as reference information that represents a reference destination of a current block; coding selection information that identifies the two or more transform components that have been selected from among the plurality of transform components; and coding the reference information of the current block by using reference information of a coded block different from the current block. | 2022-08-11 |
20220256193 | DATA ENCODING AND DECODING - A video data encoding method for encoding an array of video data values includes frequency-transforming the video data values according to a frequency transform, to generate an array of frequency-transformed values by a matrix-multiplication process using a transform matrix having a data precision greater than six bits. | 2022-08-11 |
20220256194 | IMAGE PROCESSING APPARATUS AND METHOD - The present technology relates to an image processing apparatus and method for shortening a delay from inputting of a stream till generation of a decoded image. The image processing apparatus generates an encoded stream by adding at least part of header information about a second access unit (AU) to be processed immediately after a first AU or information regarding at least part of the header information, to supplemental enhancement information (SEI) about the first AU. The present technology can be applied to an image encoding device. | 2022-08-11 |
20220256195 | SYNTAX FOR SUBPICTURE SIGNALING IN A VIDEO BITSTREAM - An example method of video processing includes performing a conversion between a picture of a video that comprises one or more sub-pictures and a bitstream representation of the video. The bitstream representation conforms to a format rule that specifies that information about a sub-picture is included in the bitstream representation based on at least one of: (1) one or more corner positions of the sub-picture, or (2) a dimension of the sub-picture. The format rule further specifies that the information about the sub-picture is positioned after information about a coding tree block in the bitstream representation. | 2022-08-11 |
20220256196 | ENCODER, DECODER AND CORRESPONDING METHODS FOR SIMPLIFYING SIGNALLING PICTURE HEADER - A method of coding implemented by a decoding device is provided. The method includes parsing a bitstream to obtain a flag from a picture header of the bitstream, wherein the flag indicates whether a current picture is I picture. when the flag indicates that the current picture is I picture, a syntax element designed for inter prediction is inferred to a default value; or when the flag indicates that the current picture is P or B picture, obtaining a syntax element designed for inter prediction from the picture header. | 2022-08-11 |
20220256197 | PREDICTION TYPE SIGNALING IN VIDEO CODING - An example method of video processing includes performing a conversion between a video including a video picture including one or more video units and a bitstream representation of the video. The bitstream representation conforms to a format rule that specifies that a first syntax element is included in a header of the video picture indicating allowed prediction types of at least some of the one or more video units in the video picture. | 2022-08-11 |
20220256198 | DATA GENERATION METHOD, DATA REPRODUCTION METHOD, DATA GENERATION DEVICE AND DATA REPRODUCTION DEVICE - A data generation method is for generating video data that covers a second luminance dynamic range wider than a first luminance dynamic range and has reproduction compatibility with a first device that does not support reproduction of video having the second luminance dynamic range and supports reproduction of video having the first luminance dynamic range, and includes: generating a video signal to be included in the video data using a second OETF; storing, into VUI in the video data, first transfer function information for identifying a first OETF to be referred to by the first device when the first device decodes the video data; and storing, into SEI in the video data, second transfer function information for identifying a second OETF to be referred to by a second device supporting reproduction of video having the second luminance dynamic range when the second device decodes the video data. | 2022-08-11 |
20220256199 | METHODS AND APPARATUS OF RESIDUAL AND COEFFICIENTS CODING - An electronic apparatus performs a method of decoding video data. The method comprises: receiving, from bitstream, one or more syntax elements and video data corresponding to a coding unit encoded in palette mode; determining a first binarization parameter according to the one or more syntax elements; decoding, from the video data, a first codeword for an escape sample within the coding unit; decoding, from the video data, a value for an escape sample within the coding unit using a predefined binarization scheme with the first binarization parameter. | 2022-08-11 |
20220256200 | INTER-PREDICTION PARAMETER DERVIATION FOR VIDEO ENCODING AND DECODING - Video processing such as encoding and/or decoding a picture can involve deriving an inter-prediction parameter based on first and second merge candidates used to generate a pairwise merge candidate, wherein the inter-prediction parameter comprises at least one of an index for weighted bi-prediction or an interpolation filter index; and encoding at least a portion of the picture information based on the inter-prediction parameter. | 2022-08-11 |
20220256201 | Methods and Apparatuses of Syntax Signaling and Referencing Constraint in Video Coding System - Encoding methods and apparatuses comprise determining parameters of a specific process for a current slice, signaling in one or more Adaptive Parameter Sets (APSs), performing the specific process using the parameters, signaling an APS ID of each signaled APS in a slice header, and encoding the current slice. Each APS is classified into a category according to a type of data carried by the APS. The APS ID of each signaled APS is counted in a category associated with the specific process and is independent of other categories. Decoding methods and apparatuses comprise parsing an APS ID of each referenced APS from a slice header of a current slice for a specific process, determining parameters from each referenced APS according to the parsed APS ID and a category associated with the specific process, performing the specific process on the current slice and decoding the current slice. | 2022-08-11 |
20220256202 | LUMA MAPPING WITH CHROMA SCALING (LMCS) LUT EXTENSION AND CLIPPING - Methods and apparatus provide mapping functions for video encoding or decoding by replacing a pivot point of a uniformly sampled inverse mapping function by another pivot point not located on an original non-uniformly sampled inverse mapping function. In one embodiment a last pivot point of the inverse mapping function is extended based on a previous slope whose curve is plotted between two previous pivot points or based on the preservation of the slope which is dual to the existing slope of the equivalent section in the forward mapping function. Syntax is provided that assists the mapping and inverse mapping and clipping. | 2022-08-11 |
20220256203 | INTRA VIDEO CODING USING A DECOUPLED TREE STRUCTURE - An example device includes a memory and processing circuitry in communication with the memory. The processing circuitry of a device is configured to form a most probable mode (MPM) candidate list for a chroma block of the video data stored to the memory, such that the MPM candidate list includes one or more derived modes (DMs) associated with a luma block of the video data associated with the chroma block, and a plurality of luma prediction modes that can be used for coding luminance components of the video data. The processing circuitry is further configured to select a mode from the MPM candidate list, and to code the chroma block according to the mode selected from the MPM candidate list. | 2022-08-11 |