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US20150071344 CHROMA QUANTIZATION IN VIDEO CODING  
A method of signaling additional chroma QP offset values that are specific to quantization groups is provided, in which each quantization group explicitly specifies its own set of chroma QP offset...
US20110268184 INVERSE QUANTIZATION METHOD, INVERSE QUANTIZATION DEVICE, AND PROGRAM  
Disclosed is an inverse quantization method that reverse-quantizes multiple quantized values as a set, obtaining a set of multiple inverse quantized values, said method being characterized in that...
US20130223521 HIGH THROUGHPUT RESIDUAL CODING FOR A TRANSFORM SKIPPED BLOCK FOR CABAC IN HEVC  
A system utilizing a high throughput residual coding mode for CABAC in HEVC is described. The system may include an electronic device configured to obtain a bitstream; recover a binary symbol from...
US20070237221 Adjusting quantization to preserve non-zero AC coefficients  
A video encoder identifies one or more AC coefficients of each of plural blocks in the picture. The encoder identifies a threshold quantization step size such that the identified AC coefficient(s)...
US20130202032 METHOD OF REMOVING A BLOCKING ARTIFACT USING QUANTIZATION INFORMATION IN A FILTERING SYSTEM  
In one embodiment, the method includes obtaining quantization information related to at least one of a first block and an adjacent second block, comparing the quantization information with a...
US20150117522 METHOD AND APPARATUS FOR ADAPTIVELY ENCODING AND DECODING A QUANTIZATION PARAMETER BASED ON A QUADTREE STRUCTURE  
Disclosed are an apparatus and a method of encoding/decoding a video, particularly a method and an apparatus for storing a quantization parameter differential value in a largest coding unit (LCU)...
US20130022109 VIDEO ENCODING METHOD, DECODING METHOD, AND APPARATUS  
According to one embodiment, a method can generate an interpolation image signal including the integer-pixel and interpolation pixel values, based on, if the interpolation pixel is not located at...
US20140098854 LOSSLESS INTRA-PREDICTION VIDEO CODING  
Blocks of a frame of a video stream can be encoded using lossless intra-prediction encoding. The compression ratio of lossless intra-prediction encoding can be improved by performing lossy...
US20090110062 OPTIMAL HEEGARD-BERGER CODING SCHEMES  
Optimal Heegard-Berger coding methods, devices, and systems are provided based on the disclosed coding schemes. The disclosed schemes facilitate decoding even in the absence of side information,...
US20120281752 METHODS AND APPARATUS FOR ADAPTIVE RESIDUAL UPDATING OF TEMPLATE MATCHING PREDICTION FOR VIDEO ENCODING AND DECODING  
Methods and apparatus are provided for adaptive residual updating of template matching prediction for video encoding and decoding. In one embodiment, an apparatus and method encodes picture data...
US20070071092 System and method for open loop spatial prediction in a video encoder  
Presented herein are systems, methods, and apparatus for real-time high definition television encoding. In one embodiment, there is a method for encoding video data. The method comprises...
US20110286515 Quantized Coefficient Coding Apparatus and Quantized Coefficient Method  
A quantized coefficient coding apparatus used in a media coding system includes a determination module, a coding mode arbitration module and a coding module. The determination module determines...
US20060034369 Method and system for parametric video quality equalization in selective re-encoding  
In a video processing system, a method and system for parametric video quality equalization in selective re-encoding are provided. A frequency of compression occurrence for a picture coding type...
US20150003518 METHODS AND DEVICES FOR EMULATING LOW-FIDELITY CODING IN A HIGH-FIDELITY CODER  
Methods of encoding and decoding video in a low-fidelity mode are described. A coding unit level low-fidelity flag is present in the bitstream to signal whether low-fidelity mode is enabled for a...
US20150110174 Reference Pixel Selection and Filtering for Intra Coding of Depth Map  
A video codec configured to receive a current block and a plurality of neighboring pixels, wherein the current block comprises a first partition and a second partition, select one or more...
US20130070846 MOTION VECTOR ENCODING/DECODING METHOD AND APPARATUS USING A MOTION VECTOR RESOLUTION COMBINATION, AND IMAGE ENCODING/DECODING METHOD AND APPARATUS USING SAME  
The present disclosure provides a motion vector encoding/decoding method and apparatus using a motion vector resolution combination, and an image encoding/decoding method and apparatus using the...
US20150249842 Hierarchical Deblocking Parameter Adaptation  
A value of a deblocking parameter is determined for a picture (40) based on a depth of the picture (40) in a hierarchical coding structure of multiple pictures (40) in a video sequence (1). The...
US20140286403 MOVING PICTURE CODING DEVICE, MOVING PICTURE CODING METHOD, AND MOVING PICTURE CODING PROGRAM, AND MOVING PICTURE DECODING DEVICE, MOVING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING PROGRAM  
In a moving picture coding device that further divides a first block acquired by dividing each picture of a moving picture into a predetermined size into one or a plurality of second blocks and...
US20140044164 TWO-STEP QUANTIZATION AND CODING METHOD AND APPARATUS  
Encoding and decoding a video image having a plurality of frames using a two-step quantization and coding process are disclosed. A block of a frame are encoded by identifying pixels having certain...
US20060203906 Video coding method of exploiting the temporal redundancy between successive frames  
The invention relates to a video coding method of exploiting the temporal redundancy between successive frames in a video sequence. A reference frame, called 1-frame, is first approximated by a...
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...
US20110150077 QUANTIZATION PARAMETER PREDICTION  
A method for encoding a video frame. The method including obtaining a current frame from a video stream, where the video stream includes a number of frames, determining a first base QP value for...
US20130279567 FRAME LEVEL RATE CONTROL USING MOTION ESTIMATED DISTORTIONS  
Described herein are techniques related to frame-level quantization parameter (QP) adjustment in video encoding. In particular, a method of implementing a bit rate control (BRC) algorithm is...
US20140072034 MOTION AND QUALITY ADAPTIVE ROLLING INTRA REFRESH  
Described herein are techniques related to motion and quality adaptive rolling intra (I) macro-block (MB) that is used to encode a particular image frame. In particular, the rolling I MB...
US20140376621 PICTURE CODING DEVICE, PICTURE CODING METHOD, AND PICTURE CODING PROGRAM, AND PICTURE DECODING DEVICE, PICTURE DECODING METHOD, AND PICTURE DECODING PROGRAM  
There is provided a picture encoding device that encodes a picture and encodes a difference quantization parameter in a unit of a quantization coding block which is divided from the picture and is...
US20060013310 Temporal decomposition and inverse temporal decomposition methods for video encoding and decoding and video encoder and decoder  
Temporal decomposition and inverse temporal decomposition methods using smoothed predicted frames for video encoding and decoding and video encoder and decoder are provided. The temporal...
US20130064290 METHODS AND APPARATUS FOR QUANTIZATION AND DEQUANTIZATION OF A RECTANGULAR BLOCK OF COEFFICIENTS  
A system includes an encoder that performs quantization on a rectangular block of quantized transform coefficients and a decoder that performs dequantization on a rectangular block of transform...
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...
US20120114034 Method and Apparatus of Delta Quantization Parameter Processing for High Efficiency Video Coding  
In the current high efficiency video coding development, each LCU has its own quantization parameter (QP) and the difference between a current QP and a reference QP is transmitted instead of the...
US20140286398 IMAGE QUANTIZATION PARAMETER ENCODING METHOD AND IMAGE QUANTIZATION PARAMETER DECODING METHOD  
An image quantization parameter encoder includes: a prediction unit 11 for generating a predicted quantization parameter from a past reconstructed quantization parameter; a computing unit 12 for...
US20130272385 LEVEL DECISION IN RATE DISTORTION OPTIMIZED QUANTIZATION  
A computing device, such as a video encoder, determines an initial quantized level for a coefficient of a coefficient block and determines whether the coefficient is less than the product of the...
US20150222904 PARSING FRIENDLY AND ERROR RESILIENT MERGE FLAG CODING IN VIDEO CODING  
Methods and apparatus for parsing friendly and error resilient merge flag coding in video coding are provided. In some methods, in contrast to merging candidate list size dependent coding of the...
US20130142253 ARITHMETIC DECODING METHOD AND ARITHMETIC CODING METHOD  
An arithmetic decoding method is a method in which a context variable specifying a probability of a possible value of each of elements included in a binary string corresponding to a value of a...
US20100040141 ADAPTIVE RESTORATION FOR VIDEO CODING  
A coding system includes an inter prediction block, a transform and quantization block, an encoding unit, and a reconstruction loop with an adaptive restoration block. The inter prediction block...
US20130301706 MOTION SENSOR ASSISTED RATE CONTROL FOR VIDEO ENCODING  
The system and methods for motion sensor assisted rate control for video encoding are described herein. An apparatus for encoding video content comprises a sensor and an encoder. The sensor is...
US20130202033 Method Of Removing A Blocking Artifact Using Quantization Information in a Filtering System  
In one embodiment, the method includes obtaining quantization information related to at least one of a first block and an adjacent second block, comparing the quantization information with a...
US20150237356 HOST ENCODER FOR HARDWARE-ACCELERATED VIDEO ENCODING  
By controlling decisions for high layers of bitstream syntax for encoded video, a host encoder provides consistent behaviors even when used with accelerator hardware from different vendors across...
US20110122942 TECHNIQUES FOR PERCEPTUAL ENCODING OF VIDEO FRAMES  
In a video encoder, pixel values of a macro-block are processed to determine an activity measure indicative of the type of content in the macro-block. Several techniques are employed for...
US20130114682 VIDEO DECODER WITH ENHANCED SAMPLE ADAPTIVE OFFSET  
A decoder decodes video received in a bitstream containing quantized coefficients representative of blocks of video representative of a plurality of pixels and a plurality of offset type...
US20140269909 METHOD OF DERIVING MOTION INFORMATION  
Provided is a method extracts a merge index from a bit stream, constructs a merge candidate list using available spatial and temporal merge candidates, selects a merge predictor among merge...
US20150063446 MOVING PICTURE ENCODING METHOD, MOVING PICTURE DECODING METHOD, MOVING PICTURE ENCODING APPARATUS, AND MOVING PICTURE DECODING APPARATUS  
A moving picture encoding method for increasing coding efficiency includes: determining whether or not to apply orthogonal transformation, to calculate a value of an orthogonal transform skip...
US20080165852 VIDEO CODING SYSTEM  
A video coding system is provided including generating a motion vector for a macro block in a picture, the motion vectors indicative of displacement of an object in the macro block; grouping a...
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...
US20060285588 Video encoder and encoding method with updateable quantization table  
A video encoder having an updateable quantization table for compressing a video information is proposed. The features are: the video encoder has a RAM to store the quantization table; the...
US20050025246 Decoding jointly coded transform type and subblock pattern information  
Techniques and tools are described for decoding jointly information. For example, a decoder decodes a variable length [“VLC”] signaled at macroblock level that jointly represents a transform type...
US20120121011 PARALLEL CONTEXT CALCULATION IN VIDEO CODING  
In one example, a method for coding video data includes identifying a scan path for scanning significance information associated with a quantized transform coefficient. The method also includes...
US20120039389 DISTORTION WEIGHING  
A distortion representation is estimated for a macroblock (10) of a frame (1) by determining for each subgroup (30) of at least one pixel (20) out of multiple subgroups (30) in the macroblock...
US20140098856 LOSSLESS VIDEO CODING WITH SUB-FRAME LEVEL OPTIMAL QUANTIZATION VALUES  
A block of a frame of a video stream can be encoded using lossless coding that generates a transform domain residual block and a spatial domain difference block. The compression ratio of the...
US20130336388 MOVING PICTURE CODING METHOD, MOVING PICTURE CODING APPARATUS, MOVING PICTURE DECODING METHOD, MOVING PICTURE DECODING APPARATUS, AND MOVING PICTURE CODING AND DECODING APPARATUS  
Provided is a moving picture coding method for performing arithmetic coding on a quantization parameter to be used in quantizing a current block that is to be coded and is included in a current...
US20130114692 Simplified Coefficient Scans for Non-Square Transforms (NSQT) in Video Coding  
A method for encoding a video sequence is provided that includes applying a non-square transform to a non-square block of residual values to generate a non-square block of transform coefficients,...