Invention Grant
- Patent Title: Entropy encoding and decoding scheme
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Application No.: US16109953Application Date: 2018-08-23
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Publication No.: US10374627B2Publication Date: 2019-08-06
- Inventor: Detlev Marpe , Tung Nguyen , Heiko Schwarz , Thomas Wiegand
- Applicant: GE VIDEO COMPRESSION, LLC
- Applicant Address: US NY Albany
- Assignee: GE VIDEO COMPRESSION, LLC
- Current Assignee: GE VIDEO COMPRESSION, LLC
- Current Assignee Address: US NY Albany
- Agency: Pillsbury Winthrop Shaw Pittman, LLP
- Main IPC: H03M7/00
- IPC: H03M7/00 ; H03M7/40 ; H03M7/46

Abstract:
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.
Public/Granted literature
- US10419017B2 Entropy encoding and decoding scheme Public/Granted day:2019-09-17
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