31
Henrique S Malvar: System and method for producing a fixed effort quantization step size with a binary search. Microsoft Corporation, Edmond A DeFrank, Lyon Harr & DeFrank, January 30, 2001: US06182034 (117 worldwide citation)

The coder/decoder (codec) system of the present invention includes a coder and a decoder. The coder includes a multi-resolution transform processor, such as a modulated lapped transform (MLT) transform processor, a weighting processor, a uniform quantizer, a masking threshold spectrum processor, an ...


32
Alexander F Keith, Edward L Schwartz, Ahmad Zandi, Martin Boliek, Michael J Gormish: Compression/decompression using reversible embedded wavelets. Ricoh Corporation, Ricoh Company, Blakely Sokoloff Taylor & Zafman, October 12, 1999: US05966465 (115 worldwide citation)

A compression and decompression system in which a reversible wavelet filter are used to generates coefficients from input data, such as image data. The reversible wavelet filter is an efficient transform implemented with integer arithmetic that has exact reconstruction. The present invention uses th ...


33
Chihiro Nakagawa, Hiroyuki Fukuda, Hiroshi Sasaki, Chikako Mogi, Hidetoshi Yamada: Image data coding apparatus and coding method. Olympus Optical, Frishauf Holtz Goodman & Woodward, December 17, 1991: US05073820 (115 worldwide citation)

An image data coding apparatus performs first and second coding processes. A controller outputs first and second control signals. An orthogonal transform circuit performs orthogonal transform on image data of one screen and generates an transformed output. A quantizing circuit quantizes the transfor ...


34
Ahmad Zandi, Edward L Schwartz, Michael J Gormish, Martin Boliek: Method and apparatus for compression using reversible wavelet transforms and an embedded codestream. Ricoh Company, Ricoh Corporation, Blakely Sokoloff Taylor & Zafman, February 27, 2001: US06195465 (112 worldwide citation)

A compression and decompression system in which a reversible wavelet filter are used to generates coefficients from input data, such as image data. The reversible wavelet filter is an efficient transform implemented with integer arithmetic that has exact reconstruction. The present invention uses th ...


35
Moe Rahnema: Packet routing system and method for achieving uniform link usage and minimizing link load. Motorola, Gregory J Gorrie, January 21, 1997: US05596722 (112 worldwide citation)

Data packets are routed among nodes of a communication system in a uniform fashion. Substantial uniform link usage is achieved within allowed routes determined by end to end transport delay criteria. Initial routes are selected for each source--destination pair from alternative minimal hop routes. L ...


36
Jae Cheol Son: Variable length code detection in a signal processing system. Samsung Electronics Company, Kent B Chambers, Skjerven Morrill MacPherson Franklin & Friel L, October 13, 1998: US05821886 (109 worldwide citation)

A group of incoming data stream bits having packed variable length code ("VLC") words is applied to an entropy code bit length searching module. The group of bits is replicated within a plurality of matching modules selectively distributed among entropy code bit length searching logic units. Each un ...


37
J Ward MacArthur, James V Radomski: Specific coefficient of performance measuring device. Honeywell, Alfred N Feldman, April 9, 1985: US04510576 (108 worldwide citation)

By measuring the power supplied to a compressor motor and by measuring four temperatures within a mechanical vapor-compression system, it is possible to develop a device for measuring and/or displaying the specific coefficient of performance of the mechanical vapor-compression system. The use of the ...


38
Navin Chaddha: Global motion estimator for motion video signal encoding. Microsoft Corporation, Schwegman Lundberg Woessner & Kluth P A, December 1, 1998: US05844613 (108 worldwide citation)

A transformation filter estimates global transformation parameters between a current frame and a previous frame of a motion video image according to corresponding relative positions of pixels within the two frames. Such estimated global transformation parameters estimate global translation, rotation ...


39
Richard L Baker, Jeffrey Bernstein, Bernd Girod, Xiancheng Yuan, Edmund Thompson: Hierarchical entropy coded lattice threshold quantization encoding method and apparatus for image and video compression. PictureTel Corporation, Hale and Dorr, September 22, 1992: US05150209 (106 worldwide citation)

A method and apparatus for encoding interframe error data in an image transmission system, and in particular in a motion compensated image transmission system for transmitting a sequence of image frames from a transmitter to a receiver, employ hierarchical entropy coded lattice threshold quantizatio ...


40
Alan Irvin Penn: Method of and apparatus for analyzing images and deriving binary image representations. Lowe Hauptman Gopstein & Berner, December 8, 1998: US05848198 (105 worldwide citation)

Data from multiple image sources are processed with a memory storing a library of data catalogs, each corresponding to one of the image sources. The catalogs have entries corresponding to the images. Each catalog entry has signal values specifying how to (1) generate an Analysis Image corresponding ...



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