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US20070081590 Macro-block quantization reactivity compensation  
A macro-block (MB) quantization reactivity compensation method for a video encoder is provided. The method calculates a reference picture quantization value based on a calculated picture...
US20060013309 Video encoding and decoding methods and video encoder and decoder  
Video coding and decoding methods capable of providing motion scalability and video encoder and decoder are provided. The video coding method includes estimating a base layer motion vector and an...
US20150071346 PARALLEL VIDEO ENCODING BASED ON COMPLEXITY ANALYSIS  
Embodiments of the invention provide techniques for encoding chunks of a video file in parallel. Embodiments may divide a source video file into a plurality of chunks, and may encode each chunk at...
US20150063443 QUANTIZATION METHOD, CODING APPARATUS, AND COMPUTER-READABLE RECORDING MEDIUM STORING QUANTIZATION PROGRAM  
A quantization method includes: performing, by a computer, scaling on transform coefficients of a target block; quantizing scaled transform coefficients to obtain a plurality of quantization...
US20060083300 Video coding and decoding methods using interlayer filtering and video encoder and decoder using the same  
Video coding and decoding methods using interlayer filtering and a video encoder and decoder using the same are provided. Multi-layer video coding employing a plurality of video coding algorithms...
US20100061447 SKIP MODES FOR INTER-LAYER RESIDUAL VIDEO CODING AND DECODING  
Techniques and tools for skip modes in encoding and decoding of inter-layer residual video are described. For example, an encoder encodes multiple macroblocks of a picture of inter-layer residual...
US20060274832 Device for encoding a video data stream  
The invention relates to a device for double pass encoding of a video data stream comprising: a first type encoding means performing the first encoding pass, a second type encoding means...
US20060159165 Picture coding method and picture decoding method  
The picture coding method of the present invention is a picture coding method for coding a picture on a block-by-block basis, comprising: a selection step of selecting one of at least two sizes as...
US20130223523 METHODS AND APPARATUS FOR VIDEO ENCODING AND DECODING USING MOTION MATRIX  
Methods and apparatus are provided for video encoding and decoding using a motion matrix. An apparatus includes a video encoder for encoding a picture in a video sequence using a motion matrix....
US20060050785 Inserting a high resolution still image into a lower resolution video stream  
A high resolution still image is inserted into a stream of lower resolution video. The lower resolution video stream is a compressed video stream having I-frames. One of the I-frames is a lower...
US20120219059 In-Loop Adaptive Wiener Filter for Video Coding and Decoding  
A video encoder may use an adaptive Wiener filter inside the core video encoding loop to improve coding efficiency. In one embodiment, the Wiener filter may be on the input to a motion estimation...
US20130034151 FLEXIBLE CODEC SWITCHING  
A system and method for switching between multiple encoders or decoders may be implemented to quickly and seamlessly transfer coding operations between two encoders. Before switching from a first...
US20050195896 Architecture for stack robust fine granularity scalability  
The present invention relates to an architecture for stack robust fine granularity scalability (SRFGS), more particularly, SRFGS providing simultaneously temporal scalability and SNR scalability....
US20080152000 CODING MODE SELECTION USING INFORMATION OF OTHER CODING MODES  
This disclosure describes techniques for coding mode selection. In particular, an encoding device determines whether or not to code a block of pixels in a coding mode currently being considered...
US20150249829 Method, Apparatus and Computer Program Product for Video Compression  
The present invention provides a method, apparatus and computer program product for video compression. The technology includes features wherein video content is initially obtained and subsequently...
US20150256827 VIDEO ENCODING DEVICE, VIDEO DECODING DEVICE, VIDEO ENCODING METHOD, AND VIDEO DECODING METHOD  
There is a problem that when performing field encoding on an interlaced signal, the space resolution in a vertical direction is reduced to one half and the correlation between pixels degrades,...
US20110019738 VIDEO CODING  
Pictures are coded using a coding algorithm with a variable parameter QP so that the quality of the coding varies. First (100), a target value TiMOS is specified for a quality measurement...
US20050094730 Wireless device having a distinct hardware video accelerator to support video compression and decompression  
A video processor within a wireless terminal, that includes a video interface that receives incoming video information and that provides outgoing video information, a processing module operably...
US20150237378 METHOD FOR CONTROLLING SAMPLE ADAPTIVE OFFSET FILTERING APPLIED TO DIFFERENT PARTIAL REGIONS IN ONE FRAME BASED ON DIFFERENT WEIGHTING PARAMETERS AND RELATED SAMPLE ADAPTIVE OFFSET FILTER  
A method for controlling sample adaptive offset (SAO) filtering includes: generating a first SAO decision for pixels in a first partial region of a first frame based at least partly on a cost...
US20130272392 PROGRAM PRODUCTS FOR ITERATIVE QUANTIZATION RATE CONTROL IN VIDEO ENCODING  
Iterative video encoding systems, methods and computer program products, where residue quantization and data packing operations of an encoding process may he repeated with various values for a...
US20060088098 Method and arrangement for reducing the volume or rate of an encoded digital video bitstream  
A method and arrangement are presented for reducing the volume or rate of an encoded digital video bitstream that fulfils a certain set of predefined structural rules. The encoded digital video...
US20080159387 Entropy deficiency based image  
A method for obtaining a quantization factor for image compression by quantization of coefficients of a transformation of an image or part thereof, comprising determining an entropy-related...
US20130089140 METHODS AND SYSTEMS FOR ENCODING OF MULTIMEDIA PICTURES  
Several methods and systems for encoding of multimedia pictures are disclosed. In an embodiment, an occupancy level of a coded picture buffer (CPB) associated with a hypothetical reference decoder...
US20080170612 METHOD AND APPARATUS FOR GEOMETRIC TRANSFORMATION IN VIDEO REPRODUCTION  
A method of geometric transformation in video reproduction and an apparatus for video reproduction includes entropy decoding, re-ordering, inverse quantization, inverse transform,...
US20140140396 METHOD AND SYSTEM FOR STRUCTURAL SIMILARITY BASED PERCEPTUAL VIDEO CODING  
The present invention is a system and method for video coding. The video coding system may involve a structural similarity-based divisive normalization approach, wherein the frame prediction...
US20110268181 METHOD AND APPARATUS FOR RATE CONTROL FOR COMPRESSION OF VIDEO FRAMES  
A method and apparatus for controlling the rate of compression in video/image compression environments is provided. The method includes determining a scaling factor that results in a compressed...
US20080253449 Information apparatus and method  
Before a start frame from which decoding of a bit stream is to be started and a reference image frame which is decoded in order to obtain a reference image necessary to decode the start frame are...
US20130272391 Method and Apparatus of Quantization Matrix Coding  
A method of coding a quantization matrix (QM) comprising non-uniformly downsampling the QM to generate a plurality of downsampled quantization coefficients. Also, an apparatus used in video...
US20090034612 QUANTIZATION METHOD AND APPARATUS IN ENCODING/DECODING  
A method and apparatus is provided for implementing quantization in encoding/decoding. Firstly, the quantization on the picture transformed coefficient matrix is performed using a quantization...
US20060222078 Content classification for multimedia processing  
An apparatus and method for processing multimedia data, such as, for example, video data, audio data, or both video and audio data for encoding utilizing a determined content classification is...
US20140169452 VIDEO ENCODING METHOD AND APPARATUS USING THE SAME  
Disclosed is a video encoding method, including: generating a residual block corresponding to a difference between a target block of an original video and a prediction block for the target block;...
US20070274382 Video compression algorithm  
A video compression routine encodes pixels using frame location relationships by using packets with variable length opcode.
US20130308699 AUDIO-VISUAL CONTENT DELIVERY  
In one embodiment, an edge server in a content-distribution network (CDN) stores a video asset in the form of partially encoded transport-stream chunks, where the partial encoding does not include...
US20130089137 RATE DISTORTION OPTIMIZATION IN IMAGE AND VIDEO ENCODING  
An offline quantization module is used to optimize a rate-distortion task. The offline quantization module calculates a quantization kernel for a range of computable block parameters and a range...
US20140205005 METHOD AND APPARATUS FOR MPEG-2 TO H.264 VIDEO TRANSCODING  
A method for transcoding from an MPEG-2 format to an H.264 format is disclosed. The method generally comprises the steps of (A) decoding an input video stream in the MPEG-2 format to generate a...
US20060098734 Apparatus, medium, and method for processing neighbor information in video decoding  
Provided is an apparatus, medium, and method for processing neighbor information in a video decoder that can minimize the number of memory accesses. The apparatus includes a neighbor information...
US20150131719 RATE-DISTORTION OPTIMIZED QUANTIZATION METHOD  
A rate-distortion optimized quantization method includes determining a rate model and a distortion model respectively, establishing a rate-distortion objective function according to the rate model...
US20050147160 Context-adaptive macroblock type encoding/decoding methods and apparatuses  
Macroblock types of macroblocks of a video picture are encoded by adaptively employing codewords of codeword tables, based at least in part on one or more macroblock type related characteristics...
US20050232359 Inter-frame prediction method in video coding, video encoder, video decoding method, and video decoder  
An inter-frame prediction method in video coding, a video encoder using the same, a bitstream structure, a video decoding method, and a video decoder are provided. The inter-frame prediction...
US20050175088 Image coding using quantizer scale selection  
A video data stream is divided (11) into blocks. First quantization scales Q arc determined (17, 19) for respective ones of the blocks, so that the quantization scales Q are sufficiently large to...
US20150110178 METHOD FOR GENERATING PREDICTION BLOCK IN AMVP MODE  
A method for generating a prediction block in Advanced Motion Vector Prediction (AMVP) mode to reconstruct a prediction-coded video signal using a motion vector approximate to original motion...
US20120069899 ENTROPY ENCODING AND DECODING USING DIRECT LEVEL AND RUN-LENGTH/LEVEL CONTEXT-ADAPTIVE ARITHMETIC CODING/DECODING MODES  
An encoder performs context-adaptive arithmetic encoding of transform coefficient data. For example, an encoder switches between coding of direct levels of quantized transform coefficient data and...
US20150256832 APPARATUSES AND METHODS FOR PERFORMING VIDEO QUANTIZATION RATE DISTORTION CALCULATIONS  
Examples of methods and apparatuses for performing video quantization rate distortion calculations are described herein. An example apparatus may include an encoder configured to encode a...
US20060171455 Method and system for encoding video data  
Described herein is a rate controller in a video system. The rate controller is comprised of a complexity estimator, a quantization level selector, a complexity generator, and a complexity...
US20140341278 METHOD AND DEVICE FOR VIDEO CODING AND DECODING  
A method and device for coding and decoding are disclosed. The method includes: dividing a picture to be encoded into several slices, each containing macroblocks continuous in a designated...
US20140321533 SINGLE-PATH VARIABLE BIT RATE VIDEO COMPRESSION  
Apparatuses, computer readable mediums, and methods of encoding video are disclosed. A video comprising a plurality of frames is encoded. The method may determine whether to encode a frame as an...
US20070081589 Adaptive quantization controller and methods thereof  
An adaptive quantization controller and methods thereof are provided. In an example method, motion prediction may be performed on at least one frame included in an input frame based on a reference...
US20140348230 MOVING PICTURE CODING METHOD, MOVING PICTURE DECODING METHOD, MOVING PICTURE CODING APPARATUS, MOVING PICTURE DECODING APPARATUS, AND MOVING PICTURE CODING AND DECODING APPARATUS  
A moving picture coding method includes (i) transforming, for each of one or more second processing units included in the first processing unit, a moving picture signal in a spatial domain into a...
US20140348229 MOVING PICTURE CODING METHOD, MOVING PICTURE DECODING METHOD, MOVING PICTURE CODING APPARATUS, MOVING PICTURE DECODING APPARATUS, AND MOVING PICTURE CODING AND DECODING APPARATUS  
A moving picture coding method includes (i) transforming, for each of one or more second processing units included in the first processing unit, a moving picture signal in a spatial domain into a...
US20150163498 VIDEO ENCODING APPARATUS AND VIDEO ENCODING METHOD  
In a video encoding apparatus, when all of quantized orthogonal transform coefficients in a first sub-block to be encoded first in a block row are zero in value, a transform unit that minimizes...