| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 348700000 | Motion dependent key signal generation or scene change detection | 84 |
| 20080231757 | MOVING IMAGE PROCESSING APPARATUS AND METHOD, AND COMPUTER READABLE MEMORY - A frame extraction unit detects a luminance change point frame in which the brightness change amount between frames is equal to or higher than a threshold value from a moving image formed by a plurality of frames. A flash check unit checks the presence/absence of a flash portion in the moving image on the basis of the detected luminance change point frame. | 09-25-2008 |
| 20080259218 | APPARATUS AND METHOD OF PROCESSING IMAGE AS WELL AS APPARATUS AND METHOD OF GENERATING REPRODUCTION INFORMATION - An apparatus of processing an image contains a scene-change-detecting unit that detects a scene change of input image based on an image signal relative to the input image, a display-position-controlling unit that determines a display position of an image after the scene change to a display position associated with an image before the scene change based on a detection result in the scene-change-detecting unit, and a display-position-setting unit that sets the display position determined in the display-position-controlling unit as a display position in which the image after the scene change is displayed. The display-position-controlling unit detects a feature value of the images before and after the scene change and determines the display position of the image after the scene change based on the feature value of the images. | 10-23-2008 |
| 20080266460 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, PROGRAM, AND RECORDING MEDIUM - An information processing apparatus detecting a commercial included in a television broadcast, the apparatus includes: a silent section detecting part detecting a silent section of the television broadcast; a scene change detecting part detecting a scene change of video of the television broadcast; a black screen/blue screen detecting part detecting that video of the television broadcast is a black or a blue screen; a potential chapter point detecting part detecting a potential chapter point indicating a reproduction start or end time of the commercial based on at least one of results by the detecting parts; and a deciding part determining whether a television broadcast between the potential chapter points is the commercial or a TV program based on the potential chapter points, and deciding a potential chapter point indicating a reproduction time instant changed from one of the commercial and the TV program to the other as the chapter points. | 10-30-2008 |
| 20080291333 | Methods, systems and apparatuses for motion detection using auto-focus statistics - Methods, systems and apparatuses for the detection of motion using statistics data already available within an imager, such as sharpness scores or brightness values. The method includes obtaining at least two sets of statistics data for respective image frames which include corresponding windows; initializing a motion counter; determining, for each window, a relative difference value for the particular window; comparing the relative difference value to a first threshold. If the relative difference value is greater than the first threshold, the method increments the motion counter; and determines if there is motion by comparing the value of the motion counter to a second threshold. The motion detection may further take into account the relative importance of certain areas of the image frame. | 11-27-2008 |
| 20090002567 | IMAGE ANALYSIS APPARATUS AND IMAGE ANALYSIS METHOD - An image analysis apparatus and an image analysis method are provided with functions of easily comparing an image with a scene change point list and easily correcting scene change points. The image analysis apparatus includes a scene change information storage unit for storing information of scene change points detected by a scene change detection unit, an image data playback unit for playing back image data stored in an image data storage unit, a controller for controlling a support operation for confirmation of scene change points of the image analysis apparatus, an operation input unit for inputting operation information to the controller, and a display unit. When the information of the frame being played back of a played back image passes the information of the scene change point, a scene change is warned on the display unit. | 01-01-2009 |
| 20090040390 | Cut detection system, shot detection system, scene detection system and cut detection method - A cut detection system includes: an extractor configured to extract macroblock type information at least for every B frame from video compressed data including the macroblock type information; a calculator configured to calculate the number of intra-coded macroblocks for every frame from the extracted macroblock type information; and a detector configured to detect the B frame or a group of picture including the B frame to be a replay cut portion, which is a head portion or last portion of a replay shot, by using a frequency characteristic of the intra-coded macroblocks included in the B frame as determination conditions. | 02-12-2009 |
| 20090046208 | IMAGE PROCESSING METHOD AND APPARATUS FOR GENERATING INTERMEDIATE FRAME IMAGE - Image processing method and apparatus for creating an image of an intermediate frame are provided. The image processing method generates a background image and a first motion image using a current frame and a previous frame, and generates a second motion image of the intermediate frame using either the current frame or the previous frame. Accordingly, it is possible to minimize the interpolation error in the boundary area vulnerable to the motion estimation error. | 02-19-2009 |
| 20090066845 | Content Processing Apparatus, Method of Processing Content, and Computer Program - Switching of topics in video content is detected using a telop included in the image, and the content is segmented by topics. | 03-12-2009 |
| 20090096933 | METHOD AND APPARATUS FOR ADJUSTING IMAGE QUALITY - An image-quality adjusting apparatus includes a display control unit configured to display on a display unit a plurality of image data that are each associated with a predetermined item for image-quality control and each have a different evaluation value as to an adjustment item, and an image-quality adjusting unit configured to adjust image quality of the plurality of image data displayed on the display unit in accordance with a user's operation. | 04-16-2009 |
| 20090141178 | Methods and Systems for Backlight Modulation with Scene-Cut Detection - Elements of the present invention relate to systems and methods for filtering a display source light illumination level with an adaptive filter based on the presence of a scene cut proximate to the current frame. | 06-04-2009 |
| 20090153744 | Scene detection system and scene detection method - A shot symbol string storage is configured to store a shot symbol string provided by applying a shot symbol corresponding to the type to each shot of video data. A model pattern storage is configured to store a model pattern symbol string which is obtained by arraying the plurality of shot symbols so as to correspond to a scene to be detected. A detector is configured to detect a symbol string, which corresponds to the model pattern symbol string of the model pattern storage, from the shot symbol string of the shot symbol string storage. Continuous shots of the video data corresponding to the symbol string detected by the detector are recognized as a specific scene. | 06-18-2009 |
| 20090161021 | INTERLACED VIDEO FIELD MOTION DETECTION - A television line doubler (interlaced to progressive scan converter) incorporating the following aspects an improved field motion detector which does not treat low frequency vertical transitions as motion; a frame motion detector having an improved ability to differentiate motion from subcarrier signal components; a sawtooth artifact detector; a sawtooth artifact detector in combination with a film pattern detector, such that the artifact detector can take the film pattern detector out of film mode earlier than it would if it only were responsive to a break in the film pattern; tandem field motion detectors; an improved field based film detector; film pattern detectors and motion detectors used therewith which operate by performing end-of-field calculations; the combination of a field motion detector and a frame motion detector such that the frame motion detector provides a motion signal used as a verification by the field motion detector; an improved NTSC film detector requiring a minimum number of NTSC film pattern sequences; and an improved PAL film detector employing a minimum motion threshold detector. | 06-25-2009 |
| 20090207316 | METHODS FOR SUMMARIZING AND AUDITING THE CONTENT OF DIGITAL VIDEO - Methods of summarizing and auditing the content of digital video are disclosed. A method may include detecting scene changes within frames of a digital video by way of a scene change detection process. Thereafter, a thumbnail explosion may be provided of the scene changes within the digital video. In one embodiment, a system user may implement a scene change detection system in an audit mode, wherein the user may view a thumbnail explosion of scene changes and either accept or reject the media depending on whether inappropriate content is found. In another embodiment, a system user may implement a scene change detection system in a summary mode, wherein the user may view a thumbnail explosion in order to obtain a summary of the content of a digital video. In either embodiment, the system user may select a thumbnail from the thumbnail explosion to show an enlarged view of the thumbnail or may view the video beginning at the location of the selected thumbnail. | 08-20-2009 |
| 20090237569 | TRANSCODER - A scene change detection part detects a scene change based on a characteristic amount of an input image. A target code amount setting part executes correction by a correction code amount on a target code amount previously set for suppressing variation of an output code amount around the time of scene change. A quantization step value setting part sets a quantization step value based on the target code amount. That is to say, a transcoder | 09-24-2009 |
| 20090251613 | Method for detecting scene change in a video picture sequence - The method comprises the following steps:
| 10-08-2009 |
| 20090251614 | METHOD AND APPARATUS FOR AUTOMATICALLY GENERATING A SUMMARY OF A MULTIMEDIA CONTENT ITEM - A summary of a multimedia content item input at step ( | 10-08-2009 |
| 20090268097 | SCENE CHANGE DETECTION METHOD AND RELATED APPARATUS ACCORDING TO SUMMATION RESULTS OF BLOCK MATCHING COSTS ASSOCIATED WITH AT LEAST TWO FRAMES - A scene change detection method includes calculating a first summation result of a plurality of minimum block matching costs associated with a plurality of blocks within a first frame, calculating a second summation result of a plurality of minimum block matching costs associated with a plurality of blocks within a second frame, and determining whether a scene change occurs according to the first and second summation results. | 10-29-2009 |
| 20090268098 | Method for detection of scene changes in a video picture sequence - The method comprises the following steps:
| 10-29-2009 |
| 20100026904 | VIDEO SIGNAL PROCESSING APPARATUS AND VIDEO SIGNAL PROCESSING METHOD - A moving area detecting circuit detects a moving area of image information S(i- | 02-04-2010 |
| 20100039564 | ANALYSING VIDEO MATERIAL - Video material is dividing into temporal segments. Each segment is examined to determine whether the soundtrack of the segment contains speech sufficient for analysis and if so, metadata are generated based on analysis of the speech. If not, the segment is analysed by comparing frames thereof with those of stored segments that already have metadata assigned to them. One then assigns to the segment under consideration stored metadata associated with one or more stored segments that are similar. | 02-18-2010 |
| 20100053452 | TELEVISION RECEIVER - It is an object of the present invention to provide a television receiver for discriminating a CM broadcast from a received television broadcast and controlling a volume of the CM broadcast without complicating a configuration of a discriminating process of the CM broadcast. The present invention includes a silence detection means, a scene change detection means, a video audio changing point detection means, a first characteristic amount extraction means, a second characteristic amount extraction means, a comparison determining means and a volume control means. The comparison determining means compares the first characteristic amount which is an audio characteristic amount of a television signal before the time when the video audio changing point is detected, and the second characteristic amount which is an audio characteristic amount of a television signal after the time when the video audio changing point is detected, to determine whether a predetermined condition is satisfied or not. The volume control means controls an output level when outputting audio of the television signal on the basis of a result of the comparison determining means. | 03-04-2010 |
| 20100110303 | Look-Ahead System and Method for Pan and Zoom Detection in Video Sequences - A look-ahead system and method for pan and zoom detection in video sequences is disclosed. The system and method use motion vectors in a reference coordinate system to identify pans and zooms in video sequences. The identification of pans and zooms enables parameter switching for improved encoding in various video standards (e.g., H.264) and improved video retrieval of documentary movies and other video sequences in video databases or other storage devices. | 05-06-2010 |
| 20100118205 | INFORMATION PROCESSING APPARATUS AND METHOD OF CONTROLLING SAME - An information processing apparatus for extracting a more appropriate representative frame image from moving image data that includes a plurality of frames of image data arranged in a time series includes: an input unit configured to input moving image data; a detecting unit configured to detect a frame image, which includes an image similar to a prescribed image pattern; a tracking unit configured to detect a frame image, which includes an image similar to the image included in the detected frame image; a storage unit configured to store the successive frame images in association with time information; a splitting unit configured to split the moving image data into a plurality of time intervals with starting time and end time of each of one or more image sequences; and an extracting unit configured to extract a representative frame image. | 05-13-2010 |
| 20100123830 | METHOD AND SYSTEM FOR SEGMENTING AND TRANSMITTING ON-DEMAND LIVE-ACTION VIDEO IN REAL-TIME - A method and system for producing video-segments of a live-action event involving monitoring a live-action event for detection of event-segments, detecting one or more event-triggers with detectors, determining if an event-segment occurred based on the detected event-triggers, and editing one or more video feeds into a video-segment to encompass the event-segment. | 05-20-2010 |
| 20100149424 | SYSTEM AND METHOD FOR DETECTING SCENE CHANGE - The present invention relates to a system for scene change detection including a decoder decoding input digital video data into video data compressed by a single codec or uncompressed video data in a codec-independent format, a normalizer normalizing the video data decoded by the decoder in a temporally and spatially uniform format, and a scene change detector computing a mode ratio for each frame of the normalized video data through a mode determination, and determining, when a frame has a mode ratio higher than a preset threshold value, that a scene change has occurred at the frame. The decoder decodes video data compression-coded by various video codecs into uncompressed video frames. | 06-17-2010 |
| 20100194992 | IMAGE PROCESSING DEVICE, COMPUTER READABLE STORAGE MEDIUM STORING IMAGE PROCESSING PROGRAM AND IMAGE PROCESSING METHOD - An image processing device includes a change-between-images calculating unit that calculates an amount of change between images in time-series images sequentially obtained, the amount of change between images indicating an amount of change between each of the time-series images and a close image temporally close to the each of the time-series images; a primary-digest-image-group extracting unit that extracts a group of primary digest images from the time-series images on the basis of the amount of change between images; a change-in-section calculating unit that calculates an amount of change between time-series sections of the time-series images, each of the time-series sections being defined by each image of the group of primary digest images; and a digest-image-group extracting unit that extracts a group of digest images from the time-series images on the basis of both the amount of change between images and the amount of change between time-series images. | 08-05-2010 |
| 20100201889 | DETECTION OF WIPE TRANSITIONS IN VIDEO - A method of processing a sequence of video frames to determine whether a wipe transition exists between shots of the sequence comprises, for each video frame, calculating its differences from a previous frame using the colour and spatial position information of the pixels in the current frame and the previous frame, projecting the differences onto one or more projection axes or other bases, calculating a measure of the likelihood that an abrupt shot transition has taken place for each of a plurality of points on a projection based on the projection value at each point for a plurality of frames including the current frame, and detecting wipes by detecting characteristic geometric patterns in the temporal sequence of the said measure of likelihood in one or more projections. | 08-12-2010 |
| 20100259688 | METHOD OF DETERMINING A STARTING POINT OF A SEMANTIC UNIT IN AN AUDIOVISUAL SIGNAL - A method of determining a starting point ( | 10-14-2010 |
| 20100277650 | SCENE-CHANGE DETECTION DEVICE - A scene-change detection device detects a scene change image from a continuous image sequence on the basis of an amount of change among a plurality of images. The scene-change detection device includes a feature-region extracting unit that extracts a feature region from an image in the image sequence; and a detecting unit that sets a condition of image-to-image change detection on the basis of a feature amount of the feature region extracted, calculates an image-to-image change amount, and detects a change among a plurality of images. | 11-04-2010 |
| 20100295998 | IMAGE PROCESSING APPARATUS AND METHOD OF CONTROLLING THE APPARATUS AND PROGRAM THEREOF - A feature amount is calculated from input image data, then a scene of the input image data is determined based on the feature amount and the reliability of the scene is calculated. Then correction processing is performed on the input image data that corresponds to the determined scene and the scene reliability of the scene. | 11-25-2010 |
| 20100302452 | METHOD AND APPARATUS FOR DETECTING A TRANSITION BETWEEN VIDEO SEGMENTS - A first transition between a first video segment and a second video segment is detected by a first detector ( | 12-02-2010 |
| 20100321584 | System and Method For Accumulative Stillness Analysis of Video Signals - A method and system for accumulating stillness characteristics is presented. The method and system generates field stillness characteristics for a current pixel of a current field. The field stillness characteristic is accumulated with an accumulated stillness characteristic that corresponds to a pixel location of the current pixel. The accumulated stillness characteristic includes stillness information regarding previous pixels of previous fields in the same pixel location as the current pixel. | 12-23-2010 |
| 20110032432 | DIGITAL IMAGE SIGNAL PROCESSING METHOD, MEDIUM FOR RECORDING THE METHOD, AND DIGITAL IMAGE SIGNAL PROCESSING APPARATUS - Provided is a digital image signal processing method, a recording medium for recording the method, and a digital image signal processing apparatus, in which a storage area of a memory may be efficiently used and an image desired by a user can be stored even when the storage area of the memory is insufficient. According to the present invention, a scene of an image may be recognized and a resolution and an image quality may be modified according to the recognized scene, thereby efficiently using the storage area of the memory. | 02-10-2011 |
| 20110051010 | Encoding Video Using Scene Change Detection - A scene change detection may be made prior to motion estimation and intraframe prediction and the overhead of the prediction stage may be reduced and the scene change detection algorithm may not be dependent on motion estimation accuracy. In some cases, an indication of a scene change may be provided, together with a level of confidence indication. In some embodiments, a window of a plurality of frames may be analyzed to determine whether or not a scene change has occurred. | 03-03-2011 |
| 20110141372 | VIDEO EVALUATION DEVICE, FRAME RATE DETERMINATION DEVICE, VIDEO PROCESS DEVICE, VIDEO EVALUATION METHOD, AND VIDEO EVALUATION PROGRAM - A frame rate is determined in accordance with the smoothness in movement of a video. An amount of change detection section extracts an amount of change based on a plurality of frame pictures included in an input video signal input as a moving picture signal from the outside and outputs an amount of change to an evaluation value calculation section. The evaluation value calculation section computes an amount of change in time between each of the frame pictures based on the amount of change and the time interval between frame pictures based on frame rate information and evaluates an evaluation value for evaluating the smoothness in movement of an input video based on the amount of change in time. The evaluation value is output to the outside as a factor for determining a frame rate. | 06-16-2011 |
| 20110157475 | METHODS AND APPARATUS TO DETECT COMMERCIAL ADVERTISEMENTS ASSOCIATED WITH MEDIA PRESENTATIONS - Methods and apparatus to detect commercial advertisements associated with media presentations are disclosed. An example method involves receiving a video frame and detecting a change in box-formatting between the video frame and a subsequent video frame. A transition between the video frame and the subsequent video frame is indicated as a commercial advertisement transition based on the detected change in box-formatting. | 06-30-2011 |
| 20110228170 | Video Summary System - The invention video summary system ( | 09-22-2011 |
| 20110234912 | IMAGE ACTIVITY DETECTION METHOD AND APPARATUS - The invention provides a method and apparatus for performing activity detection on images, by comparing a difference in file sizes of two still images f | 09-29-2011 |
| 20110242424 | Detecting Video Format Information in a Sequence of Video Pictures - Gradient analysis may be utilized to determine frame and field repeat patterns in input video data. Those frame and field repeat patterns may then be analyzed to match them with characteristic patterns associated with telecine 3:2 and 2:2 pulldown video data, for example. In addition, a progressive detector may use combing analysis to determine whether or not a particular field is progressive or interlaced data. Then, this information, together with a field flag which indicates whether field or frame analysis is appropriate, may be utilized to distinguish telecine 2:2 or 3:2 pulldowns and interlaced and progressive data in some embodiments. | 10-06-2011 |
| 20110249189 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM - An image processing apparatus includes: a first layer summary data generation section; a second layer summary data generation section; a first search section; and a second search section. | 10-13-2011 |
| 20110255005 | INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD AND PROGRAM - An information processing device includes a change point detection unit which detects change points of a moving image, a transition detection unit which detects transition of a subject, a composition similarity degree information generation unit which generates composition similarity degree information, based on feature amounts of the compositions of the images configuring the moving image included between the change points, a voice similarity degree information generation unit which generates voice similarity degree information, based on a feature amount of the voice data associated with the moving image included between the change points, and a determination unit which determines whether or not the moving image included between the change points is a moving image corresponding to the specific scene, based on the detected transition, the generated composition similarity degree information and the generated voice similarity degree information. | 10-20-2011 |
| 20110267544 | NEAR-LOSSLESS VIDEO SUMMARIZATION - Described is perceptually near-lossless video summarization for use in maintaining video summaries, which operates to substantially reconstruct an original video in a generally perceptually near-lossless manner. A video stream is summarized with little information loss by using a relatively very small piece of summary metadata. The summary metadata comprises an image set of synthesized mosaics and representative keyframes, audio data, and the metadata about video structure and motion. In one implementation, the metadata is computed and maintained (e.g., as a file) to summarize a relatively large video sequence, by segmenting a video shot into subshots, and selecting keyframes and mosaics based upon motion data corresponding to those subshots. The motion data is maintained as a semantic description associated with the image set. To reconstruct the video, the metadata is processed, including simulating motion using the image set and the semantic description, which recovers the audiovisual content without any significant information loss. | 11-03-2011 |
| 20110292291 | METHODS AND APPARATUS TO DETECT A BLANK FRAME IN A DIGITAL VIDEO BROADCAST SIGNAL - Methods and apparatus to detect blank images in a digital video broadcast signal are disclosed. An example method of detecting a blank image includes receiving a compressed digital image including a plurality of DC values, analyzing a total number of bits in the digital image to determine if the digital image has a data size small enough to be a blank frame candidate, if the data size is small enough for the digital image to be a blank frame candidate, analyzing multiple areas of the digital image to determine if the multiple areas exhibit substantially a same complexity, if the multiple areas exhibit substantially the same complexity, determining a number of DC values in the plurality of DC values that meet a criterion, comparing the determined number of DC values meeting the criterion to a threshold, and identifying the received digital image as a blank image if the determined number of DC values exceeds the threshold. | 12-01-2011 |
| 20120033138 | MOTION DETECTOR FOR CADENCE AND SCENE CHANGE DETECTION AND METHODS FOR USE THEREWITH - A motion identification signal is generated, based on a sequence of pictures of a video signal. A motion adaptive filter is adapted based on the motion identification signal. A scene change detection signal is generated based on the motion identification signal. A cadence detection signal can also be generated based on the motion identification signal. | 02-09-2012 |
| 20120154684 | METHOD FOR PRODUCING A BLENDED VIDEO SEQUENCE - A method for producing a blended video sequence that combines a still image and a video image sequence comprising: designating a first face in the still image, designating a second face in the video image sequence; detecting a series of video frames in the video image sequence containing the second face; identifying a video frame in the detected series of video frames suitable for transitioning from the first face into the second face; using a data processor to automatically produce a transition image sequence where the first face transitions into the second face, and a first background transitions into a second background; and producing the blended video sequence by concatenating the transition image sequence, and a plurality of video frames from the video image sequence starting from the identified video frame. | 06-21-2012 |
| 20120169937 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus comprises a motion vector detection unit that detects a motion vector from each frame of inputted moving image data, for each block, a total motion vector calculation unit that calculates, for each block, a total motion vector being a total value of the motion vectors in a time direction of a frame group corresponding to a first period, a total stillness amount calculation unit that calculates, for each frame, a value based on the number of total motion vectors each having a magnitude of not more than a first predetermined value as a total stillness amount, and an extraction unit that extracts moving image data composed of a frame group including a frame having the calculated total stillness amount of not less than a first threshold at a rate not less than a predetermined rate. | 07-05-2012 |
| 20120176548 | PROCEDURE AND DEVICE FOR DETECTING FADES IN A SEQUENCE OF IMAGES - In order to detect a fade in a sequence of images, a luminance level is calculated for each of the images of a window (termed a detection window) that is N consecutive images in length, and for the image preceding the detection window. A difference of luminance level between the luminance level of the current image and the luminance level of the image preceding the current image is calculated. This is done for each of the N images of the detection window. The presence of a fade for the detection window is deduced if, for at least k images of the detection window, the difference of luminance level is greater than a predefined threshold, with 2<=k<=N. | 07-12-2012 |
| 20120249880 | METHOD AND APPARATUS FOR DETECTING CAMERA MOTION TYPE IN VIDEO - Embodiments disclose a method and apparatus for detecting a camera motion type in a video, the method including: estimating a first zoom motion parameter between adjacent frames in the video; estimating a second zoom motion parameter between frames having an interval of a preset number in a corresponding video segment when the first zoom motion parameter meets a first preset condition; and identifying the camera motion type of the video segment as slow zoom when the second zoom motion parameter meets a second preset condition. With the embodiments of the invention, the motion type of a camera in the video can be detected more effectively and accurately. | 10-04-2012 |
| 20120257116 | VIDEO SIGNATURE - Video signatures are generated when a small change in video information between consecutive frames N−1 and N is followed by a large change in video information between consecutive frames N and N+1. Information from frames N and/or N+1 is used to form a video signature. | 10-11-2012 |
| 20130021529 | APPARATUS, MEDIUM, AND METHOD SEGMENTING VIDEO SEQUENCES BASED ON TOPIC - Provided are an apparatus, medium, and method segmenting video sequences based on a topic. The apparatus may include a start-shot determination unit detecting a plurality of key-frames by using character information from video sequences including a plurality of frames to determine the detected key-frames as start-shots for each topic, and a topic list creation unit creating a topic list by using the start-shots for each topic. | 01-24-2013 |
| 20130076985 | METHOD AND APPARATUS FOR DETECTING MOTION VECTOR - Provided is a motion vector detecting apparatus capable of detecting a motion vector based on each of front and rear frames as a starting point while restraining an increase of a circuit scale. A starting pixel generation unit generates starting pixel data based on pixel data in a frame f | 03-28-2013 |
| 20130194508 | Scene Break Prediction Based On Characteristics Of Previous Scenes - Methods and apparatus provide for a Scene Detector to optimize the location of scene breaks in a set of video frames. Specifically, the Scene Detector receives a set of video frames and a corresponding content model for each video frame. As the Scene Detector identifies a scene in the set of video frames, the Scene Detector updates statistical predictors with respect to characteristics of that scene's characteristics. The Scene Detector thereby utilizes the updated statistical predictors to identify a video frame that may be the next scene break. The Scene Detector analyzes video frames with respect to the possible next scene break in order to identify the actual second scene break that occurs after the previously identified scene break. | 08-01-2013 |
| 20130235275 | SCENE BOUNDARY DETERMINATION USING SPARSITY-BASED MODEL - A method for determining a scene boundary location dividing a first scene and a second scene in an input video sequence. The scene boundary location is determined responsive to a merit function value, which is a function of the candidate scene boundary location. The merit function value for a particular candidate scene boundary location is determined by representing the dynamic scene content for the input video frames before and after candidate scene boundary using sparse combinations of a set of basis functions, wherein the sparse combinations of the basis functions are determined by finding a sparse vector of weighting coefficients for each of the basis functions. The weighting coefficients determined for each of the input video frames are combined to determine the merit function value. The candidate scene boundary providing the smallest merit function value is designated to be the scene boundary location. | 09-12-2013 |
| 20130242200 | MEASURING DEVICE AND METHOD FOR CALCULATING RESPONSE TIME OF ELECTRONIC DEVICE - A method for calculating response time of an electronic device is provided. The method includes: obtaining a video file recording a process of change of interface displayed from an original interface to a new interface chosen by a user, the video file comprises a series of video frames; searching for a key video frame among all the video frames of the video file, the image of the key video frame indicates the point of demarcation between the original interface and the new interface displayed; and calculating a time interval from a first video frame of the video file to the key video frame, according to timestamps of the first video frame and of the key video frame, so as to determine the actual response time of the electronic device. A related measuring device is also provided. | 09-19-2013 |
| 20130300939 | SYSTEM AND METHOD FOR JOINT SPEAKER AND SCENE RECOGNITION IN A VIDEO/AUDIO PROCESSING ENVIRONMENT - An example method is provided and includes receiving a media file that includes video data and audio data; determining an initial scene sequence in the media file; determining an initial speaker sequence in the media file; and updating a selected one of the initial scene sequence and the initial speaker sequence in order to generate an updated scene sequence and an updated speaker sequence respectively. The initial scene sequence is updated based on the initial speaker sequence, and wherein the initial speaker sequence is updated based on the initial scene sequence. | 11-14-2013 |
| 20130300940 | METHOD FOR PROCESSING A COMPRESSED VIDEO STREAM - For a compressed video stream formed of a sequence of compressed data packets, each compressed packet is assigned to a frame by processing the undecoded data packet. A frame includes packets. A first plurality of frames is assigned to a first sliding window and a second plurality of frames is assigned to a second sliding window. The first and second sliding windows have different frames. A first window indicator is calculated by determining a first indicator representing an average number of packets per frame within the first window, and/or a second indicator representing size information of the data within the first window. A second window indicator is calculated by determining a third indicator representing an average number of packets per frame within the second window, and/or a fourth indicator representing size information of the data within the second window. The first and the second window indicators are compared. | 11-14-2013 |
| 20130308058 | LOOK-AHEAD SYSTEM AND METHOD FOR PAN AND ZOOM DETECTION IN VIDEO SEQUENCES - A look-ahead system and method for pan and zoom detection in video sequences is disclosed. The system and method use motion vectors in a reference coordinate system to identify pans and zooms in video sequences. The identification of pans and zooms enables parameter switching for improved encoding in various video standards (e.g., H.264) and improved video retrieval of documentary movies and other video sequences in video databases or other storage devices. | 11-21-2013 |
| 20140016038 | HEURISTIC METHOD FOR DROP FRAME DETECTION IN DIGITAL BASEBAND VIDEO - A video detector for detecting dropped frames in a video according to embodiments of the invention may include a quality measurer structured to generate a quality measure of a transition between a current frame and a previous frame, a dynamic threshold generator structured to generate a threshold value based on a comparison of blocks within the current frame, and an identifier structured to indicate the video as having a dropped frame based on a comparison between the difference value and the threshold value. Methods of performing dropped frame detection in a video stream are also described. | 01-16-2014 |
| 20140176802 | DETECTION AND MEASUREMENT OF VIDEO SCENE TRANSITIONS - One embodiment of the present invention sets forth a technique for detecting a video transition. The technique involves calculating a first average pixel intensity for each pixel grouping included in a first plurality of pixel groupings, calculating a second average pixel intensity for each pixel grouping included in a second plurality of pixel groupings, and calculating a third average pixel intensity for each pixel grouping included in a third plurality of pixel groupings. The technique further involves comparing a first average pixel intensity to a corresponding second average pixel intensity to identify a first trend, comparing a second average pixel intensity to a corresponding third average pixel intensity to identify a second trend, and comparing the first trend to the second trend to determine whether a match exits. Finally, the technique involves determining that a video transition is occurring based on a number of matches. | 06-26-2014 |
| 20140176803 | METHOD FOR PRODUCING A BLENDED VIDEO SEQUENCE - A method for producing a blended video sequence that combines a still image and a video image sequence comprising: designating a first face in the still image, designating a second face in the video image sequence; detecting a series of video frames in the video image sequence containing the second face; identifying a video frame in the detected series of video frames suitable for transitioning from the first face into the second face; using a data processor to automatically produce a transition image sequence where the first face transitions into the second face, and a first background transitions into a second background; and producing the blended video sequence by concatenating the transition image sequence, and a plurality of video frames from the video image sequence starting from the identified video frame. | 06-26-2014 |
| 20140184917 | AUTOMATED CHANNEL SWITCHING - Systems, devices and methods are described to automatically detect scene changes in television programming streams received by a set top box or other television receiver, to classify the detected scenes, and to automatically provide the classified scenes to a viewer if the scenes are determined to be of interest to the viewer. | 07-03-2014 |
| 20140198257 | SYSTEM AND METHOD FOR MOTION DETECTION IN A SURVEILLANCE VIDEO - In some embodiments, a non-transitory processor-readable medium stores code representing instructions to cause a processor to smooth a current image of a scene to produce a smoothed image and subtract pixel values of a background image of the scene from corresponding pixel values of the smoothed image to produce an altitude difference image. Pixel values of the altitude difference image are weighted to produce a weighted difference image. The weighted difference image is convolved to produce a convoluted difference image. A threshold is applied to each pixel of the convoluted difference image to produce a thresholded difference image. Pixels having a value less than the threshold are removed from the thresholded difference image and classified as background pixels. Foreground pixels are determined based on the thresholded difference image. | 07-17-2014 |
| 20140240602 | SCENE CHANGE DETECTION DEVICE, DISPLAY DEVICE, SCENE CHANGE DETECTION METHOD, AND SCENE CHANGE DETECTION PROGRAM - A scene change detection device includes an inter-frame difference calculation unit configured to calculate, based on an image signal, an inter-frame difference value corresponding to an inter-frame pixel value difference, and a determination unit configured to determine whether or not a target frame is the first frame in a video scene that has changed, by referring to a first value and a comparative value, the first value being an inter-frame difference value between the target frame and a frame other than the target frame, the comparative value being derived from a second value that is an inter-frame difference value between frames other than the target frame. | 08-28-2014 |
| 20140375888 | VIDEOLENS MEDIA ENGINE - A system, method, and computer program product for automatically analyzing multimedia data are disclosed. Embodiments receive multimedia data, detect portions having specified features, and output a corresponding subset of the multimedia data. Content features from downloaded or streaming movies or video clips are identified as a human probably would do, but in essentially real time. Embodiments then generate an index or menu based on individual consumer preferences. Consumers can peruse the index, or produce customized trailers, or edit and tag content with metadata as desired. The tool can categorize and cluster content by feature, to assemble a library of scenes or scene clusters according to user-selected criteria. | 12-25-2014 |
| 20150085194 | STILL IMAGE PROVISION DEVICE - A moving image acquiring part acquires a moving image. A still image accumulating part stores still images. An image processing part calculates gains obtained by previously storing based on the costs of extraction of still images from a moving image, and extracts some still images with higher gains from among the still images composing the moving image and stores into the still image accumulating part. A request processing part retrieves a still image requested by a request source from the still image accumulating part and transmits to the request source and, when the still image requested by the request source is not stored in the still image accumulating part, extracts the still image requested by the request source from the moving image acquired by the moving image acquiring part and transmits to the request source. | 03-26-2015 |
| 20160065792 | Scene-Change Detection Using Video Stream Pairs - A scene change is determined using a first and a second video signal, each representing the same scene or content, but at a different color grade (such as dynamic range). A set of prediction coefficients is generated to generate prediction signals approximating the first signal based on the second signal and a prediction model. A set of prediction error signals is generated based on the prediction signals and the first signal. Then, a scene change is detected based on the characteristics of the prediction error signals. Alternatively, a set of entropy values of the difference signals between the first and second video signals are computed, and a scene change is detected based on the characteristics of the entropy values. | 03-03-2016 |
| 20160198118 | DISPLAY APPARATUS AND DISPLAY METHOD FOR DISPLAYING IMAGE | 07-07-2016 |
| 20160205289 | DETECTION OF SOLID COLOR FRAMES FOR DETERMINING TRANSITIONS IN VIDEO CONTENT | 07-14-2016 |
| 348701000 | Specified processing of frame or field difference signal (e.g., noise reduction, key signal spreading) | 12 |
| 20080239159 | Video Content Identification Using Scene Change Signatures from Downscaled Images - Apparatus for identifying video content includes a scene detector to detect a plurality of consecutive scenes in the video content. The video content may include a video program and an advertisement contained within the video program. A signature generator determines a scene change signature for each of the plurality of consecutive scenes. A content identifier provides the plurality of scene change signatures to a comparator that compares the plurality of scene change signatures to a database having a plurality of video content items to identify the video program. The database includes an ordered plurality of previously determined scene change signatures for each item of video content in the database. The content identifier receives an identification of the video content from the comparator. The content identifier may further receive information related to a position of the plurality of scene change signatures within the ordered plurality of previously determined scene change signatures. | 10-02-2008 |
| 20090147143 | VIDEO QUALITY ANALYSIS USING A LINEAR APPROXIMATION TECHNIQUE - A video analysis technique includes correlating frames from a processed video with frames from a pre-processed, original video. A linear approximation of a relationship between the correlated frames is determined. A disclosed example includes determining a linear approximation that maximizes the number of processed video frames that fit into the linear approximation. The linear approximation and whether any frames do not fit within the linear approximation is then used to provide quality information for analyzing a quality of the processed video. | 06-11-2009 |
| 20090244390 | REAL TIME PROCESSING OF VIDEO FRAMES FOR TRIGGERING AN ALERT - A method for real time processing of a sequence of video frames. The video frames are received in synchronization with a recording of the video frames in real time for triggering an alert. The method is implemented by execution of program code on a processor of a computer system. Each frame includes a two-dimensional array of pixels and a frame-dependent color intensity at each pixel. An algorithm determines whether a static object in a current frame of the video frames is an abandoned object or a removed object. The determined status, the current frame time, the static region, and the static object are stored in a data storage medium of the computer system. An alarm is triggered in response to satisfaction of requirements that include a persistence requirement, a non-persistence duration requirement, and a persistence duration requirement. | 10-01-2009 |
| 20100110304 | Method and System for Adaptive Temporal Interpolation Filtering for Motion Compensation - Certain aspects of a method and system for adaptive temporal interpolation filtering for motion compensation may include computing a plurality of weights for adaptively adjusting one or more parameters of a plurality of linear filters utilized for motion compensation. One or more motion compensated output pictures may be generated based on vector median filtering a plurality of linear filtered output pictures generated by the plurality of linear filters. In instances where two frames are utilized for motion estimation of a video sequence, a motion compensated picture of a previous frame and a motion compensated picture of a current frame may be combined to adaptively compute the subsequent weights. In instances where three or more frames are utilized for motion estimation of a video sequence, the generated one or more motion compensated output pictures may be combined with an extracted desired picture from the video sequence to adaptively compute the subsequent weights. | 05-06-2010 |
| 20100134691 | VIDEO ANALYZER AND COMPUTER PROGRAM PRODUCT - According to one embodiment, a video analyzer includes a still image detector, a characteristic detector, and a boundary position detector. The still image detector detects a still image in video frames of content including video and audio data, and create a still image group of substantially the same still images. The characteristic detector includes at least one of a monochrome detector that detects a monochrome video frame in the video frames of the content and a silence detector that detects a silent portion in which the sound volume of the audio data is lower than a predetermined threshold. The boundary position detector detects a position where the type of the content changes based on information on at least one of the monochrome video frame and the silent portion contained in a segment where the still image group is present and a segment where no still image group is present. | 06-03-2010 |
| 20110128449 | IMAGE SIGNAL PROCESSING APPARATUS, IMAGE SIGNAL PROCESSING METHOD, IMAGE DISPLAY APPARATUS, TELEVISION RECEIVER, AND ELECTRONIC DEVICE (amended - An image signal processing apparatus includes: a basic movement level finding section for detecting a movement level of a video image; a timing controller for dividing one frame period into a plurality of periods containing a sub-frame A period and a sub-frame B period; a sub-frame A image signal generating section for subjecting, to a smoothing process, image signals which are supplied to pixels, in the sub-frame A period, in accordance with the movement level of the video image; a sub-frame B image signal generating section for subjecting, to an emphasizing process, image signals which are supplied to pixels, in the sub-frame B period, in accordance with the movement level of the video image; and an applied movement level finding section for finding, from a movement level of a video image of a current frame period and a movement level of a video image of a previous frame period, an applied movement level which is applied to the sub-frame A image signal generating section and/or the sub-frame B image signal generating section. | 06-02-2011 |
| 20110234913 | CONTROLLING ARTIFACTS IN VIDEO DATA - Controlling artifacts in video data. Image data of collocated pixels of a plurality of frames of the video data is sampled ( | 09-29-2011 |
| 20130271667 | VIDEO PROCESSING APPARATUS AND VIDEO PROCESSING METHOD - An input video is compared with a background model. Based on the comparison result, a duration time during which a difference region different from the background model continues in the input video is measured. The difference region whose duration time is less than a predetermined threshold is determined as a foreground. A scene change in the input video is detected based on the comparison result. Upon detecting the scene change, the predetermined threshold is changed. | 10-17-2013 |
| 20140146235 | PRACTICAL TEMPORAL CONSISTENCY FOR VIDEO APPLICATIONS - A video sequence having a plurality of frames is received. A feature in a first frame from the plurality of frames and a first position of the feature in the first frame are detected. The position of the feature in a second frame from the plurality of frames is estimated to determine a second position. A displacement vector between the first position and the second position is also computed. A plurality of content characteristics is determined for the first frame and the second frame. The displacement vector is spatially diffused with a spatial filter over a frame from the plurality of frames to generate a spatially diffused displacement vector field. The spatial filter utilizes the plurality of content characteristics. A temporal filter temporally diffuses over a video volume the spatially diffused displacement vector field to generate a spatiotemporal vector field. The temporal filter utilizes the plurality of content characteristics. | 05-29-2014 |
| 20140192267 | METHOD AND APPARATUS OF REDUCING RANDOM NOISE IN DIGITAL VIDEO STREAMS - Method and apparatus for reducing random noise in digital video streams are described. In one innovative aspect, the device includes a noise estimator. The device also includes a motion detector configured to determine a motion value indicative of motion between two frames of the video stream, the motion value based at least in part on the noise value. The device further includes a spatial noise reducer configured to filter the image data based at least in part on a blending factor and the noise value. The device also includes a temporal noise reducer configured to filter the video data based on the motion value and the noise value. The device also includes a blender configured to blend the spatial and temporal filtered values to provide a weighted composite filtered output image. | 07-10-2014 |
| 20150348251 | Method and Device for Evaluating Quality of Video in Time Domain on Terminal Side - Disclosed are a method and device for valuating quality of a video in a time domain on a terminal side. The method comprises that: a significant movement area proportion of each video frame is calculated, video frames are divided into absolute regular frames and suspected distorted frames according to the significant movement area proportion of each video frame; a frozen frame detection, a scenario-conversion frame detection, a jitter frame detection, and a ghosting frame detection are performed on the suspected distorted frames; the video is split into scenarios according to the result of the scenario-conversion frame detection, scenario information weight of each scenario is calculated, and the quality of the video in time domain on the terminal side is determined. The disclosure increases the closeness of the evaluation result to subjective perception, expands an evaluation system of time domain distortions of the video, and reduces the probability of misjudgments. | 12-03-2015 |
| 20160142593 | METHOD FOR TONE-MAPPING A VIDEO SEQUENCE - The present invention generally relates to a method and device for tone-mapping a video sequence in which a local tone-mapping operator is applied on each frame of the video sequence to be tone-mapped. The method is characterized in that the spatial neighborhoods used by said local-tone-mapping operator are determined on a temporal-filtered version of the frame to be tone-mapped. | 05-19-2016 |
| 348702000 | Composite color signal | 4 |
| 20090027560 | IMAGE SIGNAL PROCESSOR AND METHOD THEREOF - An image signal processor and a method for processing an image signal thereof are disclosed. The image signal processor stores a difference of image signals between a current frame and a previous frame, determines whether the input signal is a moving image or a still image by comparing the difference of image signals between the current frame and a frame prior to the previous frame, and filters the image signals employing a 2D comb filter or 3D comb filter. As a result, a filtering is executed using comb filters proper to a moving image and a still image. | 01-29-2009 |
| 20100039565 | Scene Change Detector - A scene change detector provides automatic detection of scene changes by utilizing frame-to-frame differences in chrominance components of video frames analyzed for information content. | 02-18-2010 |
| 20100302453 | DETECTION OF GRADUAL TRANSITIONS IN VIDEO SEQUENCES - A technique is disclosed for detecting gradual transitions between frames of a video sequence such as fade and dissolve transitions. For each frame, the intensity values of pixels at corresponding positions within a window of frames including the subject frame are compared, and signs are allocated to the calculated differences. The number of each type of sign is determined for each pixel position and the larger number of matching signs is assigned as a measure of the monotonicity of the direction of intensity variations at the pixel position between the frame and the surrounding frames. A global monotonicity measure is then calculated for the frame as a whole using the monotonicity values for each pixel position. This is repeated for each frame to generate a temporal sequence of frame intensity change monotonicity measures. Slopes within this temporal sequence representative of gradual Transitions between video frames are detected. Alternatively, the values in the temporal sequence are compared with a threshold to identify values representative of gradual transitions between video frames. | 12-02-2010 |
| 20130113999 | METHODS, SYSTEMS, AND COMPUTER-READABLE MEDIA FOR DETECTING SCENE CHANGES IN A VIDEO - A method, system and computer-readable media for detecting scene changes in a video that includes providing by one or more computing devices a plurality of passes through the video where a plurality of detected scenes from a first pass in a conventional method are identified and a second pass through the detected scenes are provided by the computing device. A plurality of scene boundary differences corresponding to the detected scenes, a fixed average, and a varying average are computed by the computing device. The scene boundary difference is compared with the fixed average and the varying average and if the scene boundary difference is less than the fixed average and the varying average, the detected scenes are combined else the detected scene being an abrupt scene change is determined. The steps of computing a varying average to combining the detected scenes are repeated by the computing device. | 05-09-2013 |
