| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 348625000 | Transition or edge sharpeners | 36 |
| 20080291332 | Image upsampling technique - A upscaling (upsampling) technique for digital images and video for presentation on a display. | 11-27-2008 |
| 20090051817 | METHOD AND DEVICE FOR IMAGE SHARPNESS ADJUSTMENT - The present invention discloses a method and a device for image sharpness adjustment. The device comprises a color analyzer, a color sharpness setting unit, a computing circuit, and a luminance adjusting unit. The color analyzer is for analyzing an input color signal to generate a plurality of color flags. The color sharpness setting unit is for generating a plurality of first sharpness gains according to the plurality of the color flags. The computing circuit is for generating a second sharpness gain according to the plurality of the first sharpness gains and the input color signal. The luminance adjusting unit is for adjusting a luminance signal according to the second sharpness gain. | 02-26-2009 |
| 20090109341 | DETECTING SCENE TRANSITIONS IN DIGITAL VIDEO SEQUENCES - This disclosure describes techniques for detecting scene transitions in a digital video sequence. An encoding device may, for example, analyze a distribution of pixel values over a plurality of frames to detect locations at which the scene transitions occur. In particular, the encoding device analyzes the distribution of pixel locations having values in a mid-range of possible pixel values to identify locations in the plurality of frames that experience a significant short-term increase in the number of pixel locations having mid-range pixel values. A significant short-term increase in the number of pixel locations with pixel values in the mid-range of possible pixel values is indicative of a soft transition. In this manner, occurrences of gradual scene transitions are detected by identifying locations within the plurality of frames that have significant short-term increases in the number of pixel locations having mid-range pixel values. | 04-30-2009 |
| 20090262247 | SYSTEM AND PROCESS FOR IMAGE RESCALING WITH EDGE ADAPTIVE PHASE CONTROL IN INTERPOLATION PROCESS - A video image processing system is described that generates the interpolated video images with sharp and jaggedness-free edges. A method of video image processing is also described that interpolates video images to generate the video images with sharp and jaggedness-free edges. The video image processing system receives and makes input image data available for further processing; analyzes the local features of the input image data; filters the input image data before performing interpolation process; modifies the phase value adaptive to the local edge distance; rescales the input image data in horizontal interpolation using the modified phase value; and rescales the horizontally interpolated image data in vertical interpolation using modified phase value. | 10-22-2009 |
| 20090278989 | SHARPNESS ENHANCING APPARATUS AND METHOD - A sharpness enhancing apparatus include: an edge analyzing unit configured to receive image data separated into brightness signals and color signals, and analyze an edge state by using brightness signals and color signals of cells contained in a specific area; and a sharpness correcting unit configured to calculate a sharpness correction amount by performing a mask operation on a sharpen mask, which is set according to the edge state, and the brightness signals of the cells, sum the calculated sharpness correction amount and the brightness signals of the cells, and correct sharpness of the brightness signals of the cells. | 11-12-2009 |
| 20090316049 | Image processing apparatus, image processing method and program - An edge detection unit performs edge detection on a frame of a moving image. A vertical line extraction unit of a block vertical boundary position detection unit extracts a vertical edge having an intensity equal to or lower than a noise determination threshold from edges detected by the edge detection unit. A vertical counter counts a total number of edges extracted by the vertical line extraction unit with respect to each pixel line position of the frame. A block vertical boundary position determination unit determines a pixel line position having a peak of a count value of the vertical counter as a block vertical boundary position. A block horizontal boundary position detection unit performs the same processing as the block vertical boundary position detection unit on a horizontal edge among edges detected by the edge detection unit and detects a block horizontal boundary position. | 12-24-2009 |
| 20090316050 | SPLIT EDGE ENHANCEMENT ARCHITECTURE - A system and method for enhancing the detail edges and transitions in an input video signal. This enhancement may be accomplished by enhancing small detail edges before up-scaling and enhancing large amplitude transitions after up-scaling. For example, detail edge enhancement (detail EE) may be used to enhance the fine details of an input video signal. An edge map may be used to prevent enhancing the large edges and accompanying mosquito noise with the detail enhancement. Noise may additionally be removed from the signal. After the fine details are enhanced, the signal may be up-scaled. Luminance transition improvement (LTI) or chrominance transition improvement (CTI) may be used to enhance the large transitions of the input video signal post scaler. | 12-24-2009 |
| 20100002147 | METHOD FOR IMPROVING THE DERINGING FILTER - The present invention relates to a method for filtering ringing artifacts in a reconstructed pixel edge block comprising the steps of: (a) providing said edge block; (b) determining a threshold as a function of the pixel values in said edge block; (c) mapping each pixel, of said edge block, to a corresponding binary index according to its value and said threshold; (d) scanning using a window, a first binary index of said mapped edge block and its surrounding indices; (e) determining if all entrapped binary indices of said window are uniform; (f) if not all entrapped binary indices of said window are uniform, scanning using a sub window that entraps said first binary index, within said window, for determining if all entrapped binary indices of said sub window are uniform; and (g) if all entrapped binary indices of said sub window are uniform, filtering the pixel that corresponds to said first binary index with the pixel values that correspond to the binary indices entrapped in said sub window. | 01-07-2010 |
| 20100033633 | DETECTING BLOCK ARTIFACTS IN CODED IMAGES AND VIDEO - A method is provided for block artifact detection and block artifact determination using multiple features in coded images and video. A method includes identifying a plurality of overlapping blocks in a picture with respect to a current block. Each of the plurality of overlapping blocks covers a portion of the current block and a portion of an adjacent block. The method further includes transforming at least one of the plurality of overlapping blocks into respective coefficients corresponding to at least one of a luminance component and a chrominance component. The method also includes identifying a block artifact for the at least one of the plurality of overlapping blocks when coefficients corresponding to the at least one of the plurality of overlapping blocks are larger than a predefined value. | 02-11-2010 |
| 20100110300 | IMAGE DISPLAY DEVICE AND METHOD - An image processing device, method, an image display device and method which can obtain a high-definition display image by properly controlling processing of reducing the blur of a displayed image caused by the time integration effect of an image sensor. The image display device comprises a motion detection part ( | 05-06-2010 |
| 20100177249 | ENHANCING VIDEO SHARPNESS AND CONTRAST BY LUMINANCE AND CHROMINANCE TRANSIENT IMPROVEMENT - An apparatus, system, method, and article for enhancing video sharpness are described. The apparatus may include a media processing node to enhance sharpness of an input image. The media processing node may include a wavelet decomposition module to perform wavelet decomposition of the input image to detect and modify edge information. Other embodiments are described and claimed. | 07-15-2010 |
| 20100283899 | CONTOUR CORRECTION CIRCUIT - A contour correction circuit according to the present invention determines, for a CVBS signal (a), a correction range of an edge of an image, and changes a contour component correction coefficient in a WINDOW in accordance with a state of a quality of the image, thereby solving a problem of overshoot caused at an edge of a video screen, performing optimum contour correction without excessive contour correction on a video image border part, and increasing the sharpness of the image. | 11-11-2010 |
| 20110063515 | Video Processing Apparatus - According to one embodiment, a video processing apparatus includes a histogram generator, a determination module and a sharpening processor. The histogram generator generates a histogram based on a luminance level of pixels of a video signal. The determination module determines whether the video signal is a captured video based on the histogram. The sharpening processor sharpens the video signal based on an imaging model function in which a blur due to imaging is not considered, if the video signal is not the captured video. | 03-17-2011 |
| 20110063516 | Video Processing Apparatus and Video Processing Method - According to one embodiment, a video processing apparatus includes an input module and a video processor. The input module is configured to input a video signal. The video processor is configured to apply sharpening processing to pixels in a horizontal direction and pixels in a vertical direction, which are included in the video signal, and to apply image blur correction to the pixels in the horizontal direction and the pixels in the vertical direction based on an imaging model function. | 03-17-2011 |
| 20110102680 | Picture Quality Control Apparatus, Method Therefor, Picture Quality Processing Apparatus, Programs For Them, and Recording Medium Recording That Program Therein - A request recognition section ( | 05-05-2011 |
| 20110115982 | VIDEO SIGNAL PROCESSING DEVICE AND VIDEO DISPLAY DEVICE - In an X-Y conversion chart, a threshold Th is defined as Y=0, that is, the threshold Th is defined on the X axis, a range from −Th to +Th is defined as a range in which smoothing (noise elimination) processing is performed, and a range outside the range from −Th to +Th is defined as a range in which sharpening processing is performed. As shown in equations in drawings, among equations denoted by Y | 05-19-2011 |
| 20110170010 | METHOD AND APPARATUS OF CONTENT ADAPTIVE DETAILING FILTERING FOR DIGITAL PICTURES - According to one embodiment, a method is disclosed. The method includes receiving video data performing pre-filtering on the data, performing content analysis is applied to identify an area of the data, applying a two-dimensional (2-D) 2 | 07-14-2011 |
| 20110187934 | Video resolution enhancement technique - A method for increasing the resolution of a frame of a video includes receiving at least three frames of the video and compensating for the motion of a portion of at least two of the frames with respect to another one of the frames. After the motion compensation, spatially processing each of the frames of the video to increase the resolution of each of the at least three frames of the video. After the spatial processing, temporally processing at least three frames to determine the increased resolution of the frame of the video, wherein the frame is one of the at least three frames of the video. | 08-04-2011 |
| 20110187935 | Video Information Processing Apparatus and Recording Medium Having Program Recorded Therein - A video-information-processing apparatus comprising: a smoothing unit to smooth input video information of a plurality of pixels and generate smoothed video information; a subtraction unit to calculate a gradation difference between the input and smoothed video information; a mixing unit to mix the input and smoothed video information at a ratio corresponding to the difference and generate mixed video information; a determination unit to determine whether or not a peripheral pixel region, including each pixel in the input video information and pixels located around the pixel, is a low-frequency region not including a gradation change greater than or equal to a predetermined gradation change; and an output-selection unit to output the mixed video information when the determination unit determines that the peripheral pixel region is the low-frequency region and output the input video information when the determination unit determines that the peripheral pixel region is not the low frequency region. | 08-04-2011 |
| 20110267540 | IMAGE QUALITY IMPROVING DEVICE AND METHOD - A Gaussian filter | 11-03-2011 |
| 20120057077 | DEBLOCKING FILTER AND DISPLAY DEVICE HAVING THE SAME - A deblocking filter includes a color resolution expansion unit, an edge filtering unit and a color resolution contraction unit. The color resolution expansion unit increases a color resolution of input video data to generate first video data. The edge filtering unit performs a blurring operation on a block edge of the first video data based on block size information to generate second video data. The color resolution contraction unit reduces a color resolution of the second video data to generate output video data, a color resolution of the output video data being the same as the color resolution of the input video data. | 03-08-2012 |
| 20130057769 | PROJECTOR, PROJECTION METHOD, AND STORAGE MEDIUM STORING PROGRAM - A projector includes an input unit which inputs an image signal, a projection unit which projects an achromatic luminance image and a chromatic image on the basis of the image signal input by the input unit, an image processing unit which performs a sharpening processing to emphasize a high-frequency component in the image signal in accordance with a sharpening parameter to the image signal input by the input unit, and a projection control unit which controls a luminance image projection time of the luminance image for the chromatic image projected in the projection unit, a value of the sharpening parameter and the luminance image projection time being associated with each other. | 03-07-2013 |
| 20130107123 | METHOD AND APPARATUS FOR CONTROLLING OVERSHOOT IN A VIDEO ENHANCEMENT SYSTEM | 05-02-2013 |
| 20150085193 | METHOD FOR IMPROVING VIDEO OUTPUT DEFINITION AND TERMINAL DEVICE - The invention discloses a method and terminal device for improving video signal definition. The method includes: acquiring information of a connected display device; selecting a corresponding definition improving algorithm according to the acquired information of the display device to process video output signals, and finally outputting the processed video signals to the display device for display. By adopting the above technical scheme, the problem in the prior art of fuzzy or unclear display images caused by mismatching between output images of the mobile device and the connected display device as a uniform fixed algorithm is adopted to magnify images when a mobile device is connected to a display device for video play is solved. | 03-26-2015 |
| 20150379693 | METHODS AND APPARATUSES FOR EDGE PRESERVING AND/OR EDGE ENHANCING SPATIAL FILTER - A technique to perform edge-aware spatial noise filtering that may filter random noise from frames While maintaining the edges in the frames. The technique may include receiving a frame comprising a pint ht of pixels, filtering a subset of the plurality of pixels based on a weighting factor associated with each pixel of the subset of pixels, wherein the weighting factor is at least in part based on a difference in pixel value between the pixel and the individual pixels in the subset, and providing the filtered pixel to an encoder for encoding. Example implementation may include a spatial noise filter to receive an image, the noise level, and configuration parameters, and configured to determine weighting factors of pixels of the image based on differences in pixel values and a set of configuration parameters, and further configured to filter noise from the image based on the weighting factors of the pixels | 12-31-2015 |
| 20160173736 | Method and System for Reconstructing Sampled Signals | 06-16-2016 |
| 348627000 | Including processing to prevent the addition of noise (e.g., coring enhancement signal, noise responsive peaking control) | 4 |
| 20090059077 | SIGNAL PROCESSING APPARATUS AND CONTROL METHOD THEREOF - There are provided a signal processing apparatus and a control method thereof. The signal processing apparatus includes: a noise detecting unit which detects a signal-to-noise ratio of an input video signal; a coring unit which performs coring to remove a component of the video signal having a level within a predetermined reference range; and a control unit which adjusts the reference range of the coring unit corresponding to the detected signal-to-noise ratio and controls the coring unit to core the video signal based on the adjusted reference range. | 03-05-2009 |
| 20090161018 | Video picture display method to reduce the effects of blurring and double contours and device implementing this method - The present invention relates to a video picture display method that aims to reduce the effects of blurring and multiple contours when the picture display frequency is doubled. According to the invention, for each source video picture, a video level dissymmetry is created between the two pictures from the source video picture after doubling the frequency in the areas in motion of the source video picture. | 06-25-2009 |
| 20100220236 | GRADATION CONTROL APPARATUS AND GRADATION CONTROL METHOD - According to one embodiment, a gradation control apparatus comprises a coring module configured to change the coring amount of a video signal according to the degree of movement of the video signal, a smoothing module configured to perform a gradation smoothing process on the video signal, and a parameter controller configured to obtain a frame difference histogram as the degree of movement of the video signal and change an effect parameter for the gradation smoothing process according to the result of weighting the histogram. | 09-02-2010 |
| 20110279730 | IMAGE ENHANCING DEVICE, IMAGE ENHANCING METHOD, IMAGE ENHANCING PROGRAM AND SIGNAL PROCESSING DEVICE - In at least one embodiment of the present invention, quality of image is improved by sufficiently sharpening the image through an appropriate high-frequency compensation with a simple arrangement, not only for still images but also for moving images and even if the images have already undergone image enlarging processes. In at least one embodiment, an HPF extracts high-frequency components from an input image signal. A square operator generates a squared signal by squaring the first signal. A first differentiator generates a first differentiation signal by differentiating the squared signal. The second differentiator generates a second differentiation signal by differentiating the input image signal. A multiplier generates a second signal by multiplying the first differentiation signal by the second differentiation signal. An adder generates an output image signal by adding the second signal to the input image signal, as a compensation signal. | 11-17-2011 |
| 348628000 | Vertical transition | 1 |
| 348629000 | Including horizontal transition | 1 |
| 20130176495 | SIGNAL PROCESSING DEVICE, CONTROL PROGRAM, AND INTEGRATED CIRCUIT - A signal processing device ( | 07-11-2013 |
| 348630000 | Color television processing | 5 |
| 20090128703 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus configured to perform a process to reduce a color blur in a color motion picture image utilizing a first frame image and a second frame image that has been obtained after the first frame image includes a memory configured to store a first color blur reduction amount used for the process to the first frame image, an estimator configured to calculate a color blur estimation amount in the second frame image through a spatial operation to the second frame image, and a determination part configured to calculate a second color blur reduction amount used for the process to the second frame image so that a difference between the first color blur reduction amount and the color blur estimation amount can fall within a predetermined range. | 05-21-2009 |
| 20100053448 | SYSTEMS AND METHODS FOR PICTURE ENHANCEMENT - Systems and methods for effectively and naturally enhancing the appearance of human faces in television pictures carried by a program signal. The appearance of the detected face is enhanced by adjusting the color hue to a natural looking color and sharpening the edges of the eyes. | 03-04-2010 |
| 348631000 | Luminance transition controls chrominance transition | 3 |
| 20090033798 | AUTOMATIC LUMINANCE-CHROMINANCE DELAY COMPENSATION - A method of automatic luminance-chrominance delay compensation is disclosed. The method generally includes the steps of (A) generating an intermediate signal by processing a video signal such as to enhance a plurality of edges in a picture within the video signal, the picture having a luminance component and a chrominance component temporally separated from each other by an actual delay, (B) identifying an estimated delay between the luminance component and the chrominance component by correlating the luminance component in the intermediate signal to the chrominance component in the intermediate signal at a plurality of relative delays and (C) compensating for the actual delay by delaying one of either (i) the luminance component and (ii) the chrominance component by the estimated delay. | 02-05-2009 |
| 20110001880 | Image Processing Apparatus and Method Thereof - An image processing apparatus includes an image decoding unit and an image adjusting unit. The image decoding unit decodes a data stream to generate a first image comprising a first pixel. The image adjusting unit comprises a pixel edge determining module and a chrominance adjusting module. The pixel edge determining module determines an edge luminance parameter according to an initial luminance value of the first pixel and a plurality of initial luminance values of pixels neighboring the first pixel, and determines an edge chrominance parameter according to an initial chrominance value of the first pixel and a plurality of initial chrominance values of pixels neighboring the first pixel. The first chrominance adjusting module determines a first weight according to the edge luminance parameter and the edge chrominance parameter, and generates a first adjusted chrominance value by weighted calculating a first predetermined chrominance value and the initial chrominance value of the first pixel. | 01-06-2011 |
| 20110285910 | Video manipulation of red, green, blue, distance (RGB-Z) data including segmentation, up-sampling, and background substitution techniques - RGB-Z imaging systems acquire RGB data typically with a high X-Y resolution RGB pixel array, and acquire Z-depth data with an array of physically larger Z pixels having additive signal properties. In each acquired frame, RGB pixels are mapped to a corresponding Z pixel. Z image resolution is enhanced by identifying Z discontinuities and identifying corresponding RGB pixels where the Z discontinuities occur. Thus segmented data enables RGB background substitution, which preferably blends foreground pixel color and substitute background color. The segmented data also enables up-sampling in which a higher XY resolution Z image with accurate Z values is obtained. Up-sampling uses an equation set enabling assignment of accurate Z values to RGB pixels. Fixed acquisition frame rates are enabled by carefully culling bad Z data. Segmenting and up-sampling enhanced video effects and enable low cost, low Z resolution arrays to function comparably to higher quality, higher resolution Z arrays. | 11-24-2011 |
