发明授权
- 专利标题: Entropy encoding and decoding scheme
- 专利标题(中): 熵编码和解码方案
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申请号: US14980671申请日: 2015-12-28
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公开(公告)号: US09473169B2公开(公告)日: 2016-10-18
- 发明人: Detlev Marpe , Tung Nguyen , Heiko Schwarz , Thomas Wiegand
- 申请人: GE Video Compression, LLC
- 申请人地址: US NY Albany
- 专利权人: GE Video Compression LLC
- 当前专利权人: GE Video Compression LLC
- 当前专利权人地址: US NY Albany
- 代理机构: Pillsbury Winthrop Shaw Pittman LLP
- 主分类号: H03M7/40
- IPC分类号: H03M7/40 ; H03M7/46
摘要:
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.
公开/授权文献
- US20160149588A1 ENTROPY ENCODING AND DECODING SCHEME 公开/授权日:2016-05-26
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