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

Patent Number Title Of Patent Date Issued
7480418 Method for processing a digital image and image representation format Jan. 20, 2009
7471724 Method and apparatus for adaptive multiple-dimensional signal sequences encoding/decoding Dec. 30, 2008
7471820 Correction method for defects in imagers Dec. 30, 2008
7466867 Method and apparatus for image compression and decompression Dec. 16, 2008
7460722 Encoding of digital data with determination of sample path Dec. 2, 2008
7457363 Method and apparatus for multi-threaded variable length coding Nov. 25, 2008
7450775 Image processing apparatus for efficient storage of variable block length data Nov. 11, 2008
7450644 Method and system to improve the transport of compressed video data in real time Nov. 11, 2008
7447372 System(s), method(s), and apparatus for decoding exponential Golomb codes Nov. 4, 2008
7439883 Bitstream generation for VLC encoded data Oct. 21, 2008
7437007 Region-of-interest editing of a video stream in the compressed domain Oct. 14, 2008
7433531 Image pickup apparatus and method Oct. 7, 2008
7428341 Method and apparatus for lossless data transformation with preprocessing by adaptive compression, multidimensional prediction, multi-symbol decoding enhancement enhancements Sep. 23, 2008
7421132 Image compressor for generating predicted difference code having fixed bit length by requantizing with coarser quantization steps Sep. 2, 2008
7418146 Image decoding apparatus Aug. 26, 2008
7415162 Method and apparatus for lossless data transformation with preprocessing by adaptive compression, multidimensional prediction, multi-symbol decoding enhancement enhancements Aug. 19, 2008
7412099 System and method for controlling compression ratio and image quality of binary images Aug. 12, 2008
7400678 Methods in transmission and searching of video information Jul. 15, 2008
7397958 Method and device for selecting data in a communication network Jul. 8, 2008
7394942 Variable length coding method and apparatus for video compression Jul. 1, 2008
7391909 Data manipulation Jun. 24, 2008
7388993 Parameter selection in data compression and decompression Jun. 17, 2008
7386176 Image sending apparatus and image receiving apparatus for sending and receiving code sequence data Jun. 10, 2008
7375660 Huffman decoding method May. 20, 2008
7369066 Efficient 8.times.8 CABAC residual block transcode system May. 6, 2008
7365659 Method of context adaptive binary arithmetic coding and coding apparatus using the same Apr. 29, 2008
7352811 Data encoding apparatus and method Apr. 1, 2008
7339506 Variable length coding method and variable length decoding method Mar. 4, 2008
7333663 Method and apparatus for efficient entropy coding of images Feb. 19, 2008
7327892 JPEG2000 encoder Feb. 5, 2008
7321694 Image forming apparatus and image forming method Jan. 22, 2008
7312730 Variable length coding method and variable length decoding method Dec. 25, 2007
7312731 Variable length coding method and variable length decoding method Dec. 25, 2007
7308099 Device and method for producing an encoded audio and/or video data stream Dec. 11, 2007
7292163 Circuit for and method of encoding a data stream Nov. 6, 2007
7292636 Using order value for processing a video picture Nov. 6, 2007
7292731 Image encoder, image decoder, image encoding method, and image decoding method Nov. 6, 2007
7289670 Image coding and decoding methods, image coding and decoding apparatuses, and recording media for image coding and decoding programs Oct. 30, 2007
7277585 Image encoding method, image encoding apparatus and storage medium Oct. 2, 2007
7272185 Moving picture encoding apparatus Sep. 18, 2007
7266148 Video transcoding apparatus Sep. 4, 2007
7262884 Image processing apparatus and image processing method Aug. 28, 2007
7262719 Fast data stream decoding using apriori information Aug. 28, 2007
7245772 Computer system and method for decompressing video data Jul. 17, 2007
7245778 Methods, devices and systems for compressing images Jul. 17, 2007
7239754 Method, apparatus and system for compressing still images in multipurpose compression systems Jul. 3, 2007
7236530 Variable-length decoding apparatus and decoding method Jun. 26, 2007
7233619 Variable general purpose compression for video images (ZLN) Jun. 19, 2007
7230633 Method and apparatus for image blending Jun. 12, 2007
7231093 Image code estimation Jun. 12, 2007

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