Entropy encoding and decoding scheme

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United States of America Patent

PATENT NO 9473169
SERIAL NO

14980671

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Abstract

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Decomposing a value range of the respective syntax elements into a sequence of n partitions with coding the components of z laying within the respective partitions separately with at least one by VLC coding and with at least one by PIPE or entropy coding is used to greatly increase the compression efficiency at a moderate coding overhead since the coding scheme used may be better adapted to the syntax element statistics. Accordingly, syntax elements are decomposed into a respective number n of source symbols si with i=1 . . . n, the respective number n of source symbols depending on as to which of a sequence of n partitions into which a value range of the respective syntax elements is sub-divided, a value z of the respective syntax elements falls into, so that a sum of values of the respective number of source symbols si yields z, and, if n>1, for all i=1 . . . n−1, the value of si corresponds to a range of the ith partition.

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Patent Owner(s)

  • GE VIDEO COMPRESSION, LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Marpe, Detlev Berlin, DE 446 6881
Nguyen, Tung Berlin, DE 133 1300
Schwarz, Heiko Berlin, DE 282 5728
Wiegand, Thomas Berlin, DE 551 8747

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