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Browse by Category: Main > Optical & Optics
Class Information
Number: 382/246
Name: Image analysis > Image compression or coding > Lossless compression > Huffman or variable-length coding
Description: Subject matter in which image data are encoded using a variable length code, such that the most common image data have the shortest codes.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8023750 Apparatus and method for encoding digital image data in a lossless manner Sep. 20, 2011
8005305 Method and apparatus for generating a halftoned image from a compressed image Aug. 23, 2011
7995847 Apparatus and method for encoding and decoding image data with selected quantization based on pixel bit depth Aug. 9, 2011
7978923 Method, system and computer program product for optimization of data compression Jul. 12, 2011
7970215 Automatic generation of compact code tables Jun. 28, 2011
7965897 Method for processing a digital image and image representation format Jun. 21, 2011
7940982 Method and apparatus for color space conversion using per-color selection of look-up table density May. 10, 2011
7936290 Dynamic selection of suitable codes for variable length coding and decoding May. 3, 2011
7936815 Methods in transmission and searching of video information May. 3, 2011
7936938 Methods and devices for encoding a digital image signal and associated decoding methods and devices May. 3, 2011
7925019 Method and apparatus for converting data, method and apparatus for inverse converting data, and recording medium Apr. 12, 2011
7926007 Writing apparatus, writing data conversion method, and computer-readable recording medium storing program using Huffman tree for converting writing data in lithographic process Apr. 12, 2011
7920629 Context-adaptive VLC video transform coefficients encoding/decoding methods and apparatuses Apr. 5, 2011
7916959 Image encoding method, image decoding method, image encoding apparatus, image decoding apparatus, image encoding program, and image decoding program Mar. 29, 2011
7912306 Variable length coding for clustered transform coefficients in video compression Mar. 22, 2011
7912127 H.264 to VC-1 and VC-1 to H.264 transcoding Mar. 22, 2011
7903730 Method and apparatus for variable accuracy inter-picture timing specification for digital video encoding Mar. 8, 2011
7903739 Method and apparatus for VC-1 to MPEG-2 video transcoding Mar. 8, 2011
7903741 Context-adaptive variable length coder with simultaneous storage of incoming data and generation of syntax elements Mar. 8, 2011
7894532 Variable-length encoding apparatus and method Feb. 22, 2011
7881384 Method and apparatus for H.264 to MPEG-2 video transcoding Feb. 1, 2011
7880647 Huffman decoding method Feb. 1, 2011
7876830 Video encoder and decoder for achieving inter-and intra-frame predictions with reduced memory resource Jan. 25, 2011
7876833 Method and apparatus for adaptive up-scaling for spatially scalable coding Jan. 25, 2011
7860328 Compression processing apparatus and compression processing method Dec. 28, 2010
7860324 Video coding system providing separate coding chains for dynamically selected small-size or full-size playback Dec. 28, 2010
7853090 Method for processing a digital image and image representation format Dec. 14, 2010
7840083 Method of encoding flag, method of decoding flag, and apparatus thereof Nov. 23, 2010
7830281 Variable-length code decoding apparatus, variable-length code decoding method, and program Nov. 9, 2010
7830964 Method and/or apparatus for parsing compressed video bitstreams Nov. 9, 2010
7831101 Method for processing a digital image and image representation format Nov. 9, 2010
7831990 Generic adaptation layer for JVT video Nov. 9, 2010
7826528 Method and apparatus for variable accuracy inter-picture timing specification for digital video encoding Nov. 2, 2010
7822118 Method and apparatus for control of rate-distortion tradeoff by mode selection in video encoders Oct. 26, 2010
7792371 Method and device for generating image code and method and device for decoding image code Sep. 7, 2010
7787701 Image processing apparatus and apparatus connected to image processing apparatus Aug. 31, 2010
7788106 Entropy coding with compact codebooks Aug. 31, 2010
7782233 Method and apparatus for encoding/decoding point sequences on laser binary representation Aug. 24, 2010
7778477 Image display encoding and/or decoding system, medium, and method Aug. 17, 2010
RE41458 Adaptive variable-length coding and decoding methods for image data Jul. 27, 2010
RE41435 Adaptive variable-length coding and decoding methods for image data Jul. 13, 2010
7751637 Method and apparatus for synthesizing data Jul. 6, 2010
7751634 Compression system for integrated sensor devices Jul. 6, 2010
7742643 Method, system and computer program product for optimization of data compression Jun. 22, 2010
7724827 Multi-layer run level encoding and decoding May. 25, 2010
7719537 Method for reducing size and increasing speed for font generation of instructions May. 18, 2010
7711195 Method for processing a digital image and image representation format May. 4, 2010
7702161 Progressive differential motion JPEG codec Apr. 20, 2010
7697773 System, method and computer program product for image compression/decompression Apr. 13, 2010
7684644 Variable-length encoding for image data compression Mar. 23, 2010

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