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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:
1 2 3 4 5 6 7 8 9 10 11 12 13

Patent Number Title Of Patent Date Issued
8243322 Image data processor and image data processing program storage medium for variable printing Aug. 14, 2012
8238679 Lossless video data compressor with very high data rate Aug. 7, 2012
8228216 Systems and methods for data compression Jul. 24, 2012
8229234 Coding and decoding device, coding and decoding method and program Jul. 24, 2012
8230362 Computer-assisted and/or enabled systems, methods, techniques, services and user interfaces for conducting motor vehicle and other inspections Jul. 24, 2012
8218647 Method and system to improve the transport of compressed video data Jul. 10, 2012
8218882 Image coding method, image coding apparatus, image coding circuit, information recording medium, and computer program Jul. 10, 2012
8204327 Context adaptive hybrid variable length coding Jun. 19, 2012
8204326 Data processing apparatus, data processing method and data processing program, encoding apparatus, encoding method and encoding program, and decoding apparatus, decoding method and decoding pr Jun. 19, 2012
8204318 Method and apparatus for image compression and decompression Jun. 19, 2012
8198596 Imaging system and image defect correcting method Jun. 12, 2012
8179974 Multi-level representation of reordered transform coefficients May. 15, 2012
8180166 Transcoding method May. 15, 2012
8175402 Drawing apparatus May. 8, 2012
8175403 Iterative backward reference selection with reduced entropy for image compression May. 8, 2012
8175404 Method and device for estimating image quality of compressed images and/or video sequences May. 8, 2012
8171169 Method and apparatus for updating a graphical display in a distributed processing environment May. 1, 2012
8170357 Apparatus and method for generating coded block pattern for alpha channel image and alpha channel image encoding/decoding apparatus and method using the same May. 1, 2012
8170111 Moving picture encoding apparatus May. 1, 2012
8165218 Method and system to improve the transport of compressed video data in real time Apr. 24, 2012
8165412 Method for decoding binary image at high speed Apr. 24, 2012
8160372 Optimized backward reference selection with reduced entropy for image compression Apr. 17, 2012
8154562 Method and arrangement for improving the grayscale resolution of a monochrome monitor Apr. 10, 2012
8155194 Method and apparatus for MPEG-2 to H.264 video transcoding Apr. 10, 2012
8155464 Image compression unit, image decompression unit, and ultrasonic diagnostic device Apr. 10, 2012
8144998 Image processing apparatus and method thereof Mar. 27, 2012
8144784 Position coding for context-based adaptive variable length coding Mar. 27, 2012
8144783 Method and apparatus for H.264 to MPEG-2 video transcoding Mar. 27, 2012
8139879 Method and apparatus for encoding image by exponential Golomb binarization using optimal threshold, and method and apparatus for decoding image by exponential Golomb binarization using optimal Mar. 20, 2012
8130833 VSB transmission system for processing supplemental transmission data Mar. 6, 2012
8131088 Scalable method for encoding a series of original images, and associated image encoding method, encoding device and decoding device Mar. 6, 2012
8131096 Variable length coding for clustered transform coefficients in video compression Mar. 6, 2012
8126062 Per multi-block partition breakpoint determining for hybrid variable length coding Feb. 28, 2012
8116579 Method and system for data compression Feb. 14, 2012
8111753 Video encoding method and video encoder for improving performance Feb. 7, 2012
8111934 Extension of two-dimensional variable length coding for image compression Feb. 7, 2012
8103115 Information processing apparatus, method, and program Jan. 24, 2012
8098943 Apparatus and method for encoding digital image data in a lossless manner Jan. 17, 2012
8098941 Method and apparatus for parallelization of image compression encoders Jan. 17, 2012
8094724 Order value for specifying relationship between video pictures Jan. 10, 2012
8086055 Variable-length code decoder Dec. 27, 2011
8073270 Image decoding apparatus and method Dec. 6, 2011
8068544 Compression with doppler enhancement Nov. 29, 2011
8059718 VSB transmission system for processing supplemental transmission data Nov. 15, 2011
8045618 Method and apparatus for MPEG-2 to VC-1 video transcoding Oct. 25, 2011
8041131 Variable length coding of coefficient clusters for image and video compression Oct. 18, 2011
8036476 Image encoding/decoding device and method thereof with data blocks in a determined order Oct. 11, 2011
8036471 Joint amplitude and position coding of coefficients for video compression Oct. 11, 2011
8031959 Compression system for a bit-plane Oct. 4, 2011
8023748 Image capturing apparatus, imaging circuit, and image capturing method Sep. 20, 2011

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