Match Document Document Title
US20130343462 Coded-Block-Flag Coding and Derivation  
Techniques for coding and deriving (e.g., determining) one or more coded-block-flags associated with video content are described herein. A coded-block-flag of a last node may be determined when...
US20150092861 ENCODING AND DECODING OF SLICES IN PICTURES OF A VIDEO STREAM  
Visible artifacts in a video stream of pictures with slices are reduced by having a separate maximum transform size for intra coding units in inter coded slices as compared to intra coding units...
US20130188731 METHOD FOR ENCODING/DECODING BLOCK INFORMATION USING QUAD TREE, AND DEVICE FOR USING SAME  
Disclosed decoding method of the intra prediction mode comprises the steps of: determining whether an intra prediction mode of a present prediction unit is the same as a first candidate intra...
US20140050266 SIZE BASED TRANSFORM UNIT CONTEXT DERIVATION  
Systems, apparatus, articles, and methods are described including operations for size based transform unit context derivation.
US20080170620 VIDEO ENCODING SYSTEM  
A video encoding system is provided including analyzing a picture; providing transforms; selecting a transform from the transforms by comparing a luminance characteristic of the picture with a...
US20120224640 QUANTIZED PULSE CODE MODULATION IN VIDEO CODING  
A quantized PCM mode includes the step of quantizing samples so that distortion is added to coded video. In this way, video blocks coded with quantized PCM appear more uniformly with adjacent...
US20150163515 VIDEO ENCODING METHOD AND APPARATUS USING TRANSFORMATION UNIT OF VARIABLE TREE STRUCTURE, AND VIDEO DECODING METHOD AND APPARATUS  
A video encoding method is provided, the method includes: encoding a current region of a video by performing a transformation on the current region by using transformation units in a variable...
US20150163514 VIDEO ENCODING METHOD AND APPARATUS USING TRANSFORMATION UNIT OF VARIABLE TREE STRUCTURE, AND VIDEO DECODING METHOD AND APPARATUS  
A video encoding method is provided, the method includes: encoding a current region of a video by performing a transformation on the current region by using transformation units in a variable...
US20130148739 VIDEO ENCODING METHOD AND APPARATUS USING TRANSFORMATION UNIT OF VARIABLE TREE STRUCTURE, AND VIDEO DECODING METHOD AND APPARATUS  
A video encoding method is provided, the method includes: encoding a current region of a video by performing a transformation on the current region by using transformation units in a variable...
US20110170607 WEAV Video Compression System  
Compression of a video by segmentation, transformation, transform encoding, difference encoding, and muxing. The segmentation looks at energies of the frames, in order to find three different...
US20120082232 ENTROPY CODING COEFFICIENTS USING A JOINT CONTEXT MODEL  
This disclosure describes techniques for performing entropy encoding and decoding of video coefficients using a joint context model shared between transform units having different sizes. For...
US20150195584 METHOD AND APPARATUS FOR ENTROPY CODING VIDEO AND METHOD AND APPARATUS FOR ENTROPY DECODING VIDEO  
Provided are entropy decoding and encoding methods of a video. The entropy decoding method includes obtaining a transformation unit significant coefficient flag indicating whether a non-zero...
US20150195583 METHOD AND APPARATUS FOR ENTROPY CODING VIDEO AND METHOD AND APPARATUS FOR ENTROPY DECODING VIDEO  
Provided are entropy decoding and encoding methods of a video. The entropy decoding method includes obtaining a transformation unit significant coefficient flag indicating whether a non-zero...
US20150189291 METHOD AND APPARATUS FOR ENTROPY CODING VIDEO AND METHOD AND APPARATUS FOR ENTROPY DECODING VIDEO  
Provided are entropy decoding and encoding methods of a video. The entropy decoding method includes obtaining a transformation unit significant coefficient flag indicating whether a non-zero...
US20150117546 METHOD AND APPARATUS FOR ENTROPY CODING VIDEO AND METHOD AND APPARATUS FOR ENTROPY DECODING VIDEO  
Provided are entropy decoding and encoding methods of a video. The entropy decoding method includes obtaining a transformation unit significant coefficient flag indicating whether a non-zero...
US20140177728 METHOD AND SYSTEM OF TRANSFORM BLOCK PROCESSING ACCORDING TO QUANTIZATION MATRIX IN VIDEO CODING  
A method and system for processing transform blocks according to quantization matrices in a video coding system are disclosed. Embodiments of the present invention derive one or more derived...
US20150215647 METHOD AND APPARATUS FOR DETERMINING A CONTEXT MODEL FOR TRANSFORM COEFFICIENT LEVEL ENTROPY ENCODING AND DECODING  
Provided are a method and apparatus for determining a context model for entropy encoding and decoding of a transformation coefficient. According to the method and apparatus, a context set index...
US20150215646 METHOD AND APPARATUS FOR DETERMINING A CONTEXT MODEL FOR TRANSFORM COEFFICIENT LEVEL ENTROPY ENCODING AND DECODING  
Provided are a method and apparatus for determining a context model for entropy encoding and decoding of a transformation coefficient. According to the method and apparatus, a context set index...
US20150215645 METHOD AND APPARATUS FOR DETERMINING A CONTEXT MODEL FOR TRANSFORM COEFFICIENT LEVEL ENTROPY ENCODING AND DECODING  
Provided are a method and apparatus for determining a context model for entropy encoding and decoding of a transformation coefficient. According to the method and apparatus, a context set index...
US20150215644 METHOD AND APPARATUS FOR DETERMINING A CONTEXT MODEL FOR TRANSFORM COEFFICIENT LEVEL ENTROPY ENCODING AND DECODING  
Provided are a method and apparatus for determining a context model for entropy encoding and decoding of a transformation coefficient. According to the method and apparatus, a context set index...
US20140269928 METHOD AND APPARATUS FOR DETERMINING A CONTEXT MODEL FOR TRANSFORM COEFFICIENT LEVEL ENTROPY ENCODING AND DECODING  
Provided are a method and apparatus for determining a context model for entropy encoding and decoding of a transformation coefficient. According to the method and apparatus, a context set index...
US20060227871 Video thumbnail method  
Video thumbnails for browsing video clips compressed with methods including scalable intra-frame coding are created by extraction and decoding of the base layer Intra-coded pictures of a video...
US20060093038 Encoding of video cross-fades using weighted prediction  
A video encoder and method are provided for encoding video signal data for at least one cross-fade picture disposed between a fade-out start picture and a fade-in end picture, where the encoder...
US20130272422 SYSTEM AND METHOD FOR ENCODING/DECODING VIDEOS USING EDGE-ADAPTIVE TRANSFORM  
A system and method for encoding/decoding videos using an edge-adaptive transform. The encoding system encodes input videos using the edge-adaptive transform or, alternatively, using either the...
US20130188728 COMPLEXITY REDUCTION OF SIGNIFICANCE MAP CODING  
The complexity of coding a significant_coeff_flag in video coding such as High Efficiency Video Coding (HEVC) is able to be reduced using the same mapping to select luma and chroma contexts for...
US20130235939 VIDEO REPRESENTATION USING A SPARSITY-BASED MODEL  
A method for representing a video sequence including a time sequence of input video frames, the input video frames including some common scene content that is common to all of the input video...
US20130064294 CONTEXT ADAPTIVE ENTROPY CODING FOR NON-SQUARE BLOCKS IN VIDEO CODING  
Disclosed are techniques for coding coefficients of a video block having a non-square shape defined by a width and a height, comprising coding one or more of x- and y-coordinates that indicate a...
US20130188710 COEFFICIENT CODING HARMONIZATION IN HEVC  
Coefficient coding for transform units (TUs) during high efficiency video coding (HEVC), and similar standards, toward simplifying design while enhancing efficiency. Elements of the invention...
US20060133477 Combined video decoder and watermark creator  
A method and apparatus that inserts watermark signal into decoded video pictures where the watermark creation function is combined with the video decoder and makes use of compressed domain...
US20120007947 APPARATUS AND METHOD FOR DISTRIBUTING THREE DIMENSIONAL MEDIA CONTENT  
A system that incorporates teachings of the present disclosure may include, for example, a server having a controller to receive 3D image content with a plurality of left eye frames and a...
US20140079134 COLOR GAMUT SCALABILITY TECHNIQUES  
Techniques are described that can be used to either compress or expand video. Color compression techniques are described that can be used to compress the wide color gamut content into lower color...
US20140185688 CODING SYSTEM TRANSFORM APPARATUS, CODING SYSTEM TRANSFORM METHOD, AND STORAGE MEDIUM  
A coding system transform apparatus includes a decoding unit configured to decode a first coded stream coded by a first coding system using a first coding parameter to acquire a decoded image, a...
US20120082231 ZERO-OUT OF HIGH FREQUENCY COEFFICIENTS AND ENTROPY CODING RETAINED COEFFICIENTS USING A JOINT CONTEXT MODEL  
This disclosure describes techniques for performing entropy encoding and decoding of video coefficients using a joint context model shared between transform units having different sizes. For...
US20090238263 Flexible field based energy efficient multimedia processor architecture and method  
A programmable energy efficient codec system is provided for encoding and decoding a plurality of application environments. A camera Codec and control system for an HD camera is provided for...
US20070058723 Adaptively adjusted slice width selection  
A video encoder (300) and method (400) for encoding video content that performs providing (402) transform coefficients and associated side information for macroblocks forming part of a frame of a...
US20120082235 CODING AND DECODING UTILIZING CONTEXT MODEL SELECTION WITH ADAPTIVE SCAN PATTERN  
There is a coding. The coding may include preparing video compression data based on source pictures. The preparing may include partitioning the source pictures into coding units and/or generating...
US20130114731 METHOD AND APPARATUS FOR ENTROPY ENCODING/DECODING A TRANSFORM COEFFICIENT  
A method and apparatus for entropy coding and decoding a transformation block are provided. The method of entropy coding a transformation block includes: determining, according to a certain scan...
US20140092983 CODED BLOCK FLAG CODING FOR 4:2:2 SAMPLE FORMAT IN VIDEO CODING  
Systems, methods, and devices for video coding that may obtain a rectangular chroma block having first and second square sub-blocks are disclosed. These systems, methods, and devices may also...
US20130315316 METHODS AND DEVICES FOR PARALLEL ENCODING AND DECODING USING A BITSTREAM STRUCTURED FOR REDUCED DELAY  
Methods and devices for encoding and decoding that involve sorting bins according to their respective estimated probabilities to form subsequences, each subsequence having an associated estimated...
US20130016789 CONTEXT MODELING TECHNIQUES FOR TRANSFORM COEFFICIENT LEVEL CODING  
In one embodiment, a method for encoding video data is provided that includes receiving a transform unit comprising a two-dimensional array of transform coefficients and processing the transform...
US20130094589 METHOD, APPARATUS AND SYSTEM FOR ENCODING AND DECODING THE SIGNIFICANCE MAP FOR RESIDUAL COEFFICIENTS OF A TRANSFORM UNIT  
Decoding includes identifying a scan pattern by which the bitstream is decoded. A set index value is decoded from the bitstream that specifies a set of flags according to the scan pattern that...
US20120082234 CODING AND DECODING UTILIZING ADAPTIVE CONTEXT MODEL SELECTION WITH ZIGZAG SCAN  
There is a coding. The coding may include preparing video compression data based on source pictures utilizing a processor. The preparing may include processing a generated transform unit,...
US20070014364 Video coding method for performing rate control through frame dropping and frame composition, video encoder and transcoder using the same  
A video coding method and apparatus that can allocate bits more efficiently when encoding or transcoding a moving frame is disclosed. The video coding method includes determining a frame to be...
US20120195374 NONLINEAR, IN-THE-LOOP, DENOISING FILTER FOR QUANTIZATION NOISE REMOVAL FOR HYBRID VIDEO COMPRESSION  
A method and apparatus is disclosed herein for using an in-the-loop denoising filter for quantization noise removal for video compression. In one embodiment, the video encoder comprises a...
US20060227865 Unified architecture for inverse scanning for plurality of scanning scheme  
Presented herein is a unified architecture for inverse scanning according to a plurality of scanning schemes. In one embodiment, there is presented a method for decoding video data. The method...
US20080240250 Regions of interest for quality adjustments  
Quality settings established by an encoder are adjusted based on information associated with regions of interest (“ROIs”). For example, quantization step sizes can be reduced (to improve quality)...
US20130272423 TRANSFORM COEFFICIENT CODING  
Techniques are described for determining a scan order for transform coefficients of a block. The techniques may determine context for encoding or decoding significance syntax elements for the...
US20050036545 Video coding quantization  
Modify H.263-type quantization with an adaptive quantization parameter floor; this limits clipping of quantized DCT coefficients and consequent artifacts. The maximum absolute level of AC...
US20080089420 REFINEMENT COEFFICIENT CODING BASED ON HISTORY OF CORRESPONDING TRANSFORM COEFFICIENT VALUES  
This disclosure describes techniques for coding of refinement coefficients of an enhancement layer in a scalable video coding (SVC) scheme. According to this disclosure, a method may comprise...
US20150071359 TWO LEVEL LAST SIGNIFICANT COEFFICIENT (LSC) POSITION CODING  
In some examples, a video coder employs a two-level technique to code information that identifies a position within the block of transform coefficients of one of the coefficients that is a last...