Invention Grant
US09088769B2 Reduced worst-case context-coded bins in video compression with parity hiding
有权
在奇偶隐藏的视频压缩中减少了最坏情况下的上下文编码容量
- Patent Title: Reduced worst-case context-coded bins in video compression with parity hiding
- Patent Title (中): 在奇偶隐藏的视频压缩中减少了最坏情况下的上下文编码容量
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Application No.: US13535392Application Date: 2012-06-28
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Publication No.: US09088769B2Publication Date: 2015-07-21
- Inventor: Dake He , Jing Wang
- Applicant: Dake He , Jing Wang
- Applicant Address: CA Waterloo, Ontario
- Assignee: BlackBerry Limited
- Current Assignee: BlackBerry Limited
- Current Assignee Address: CA Waterloo, Ontario
- Agency: Rowand LLP
- Main IPC: H04N7/26
- IPC: H04N7/26 ; H04N7/12 ; H04N11/02 ; H04N11/04 ; H04N19/00 ; H04N19/91 ; H04N19/13 ; H04N19/60 ; H04N19/70 ; H04N19/61

Abstract:
Methods and devices for reconstructing coefficient levels from a bitstream of encoded video data for a coefficient group in a transform unit. Parity hiding is used to signal the parity of the upper left coefficient of the coefficient group. Based on the parity, either the significant coefficient flag or the greater-than-one flag is encoded/decoded for that coefficient, but not both. The greater-than-one flag is encoded/decoded irrespective of whether a maximum number of greater-than-one flags have been encoded/decoded with respect to the other coefficients in the coefficient group.
Public/Granted literature
- US20140003533A1 REDUCED WORST-CASE CONTEXT-CODED BINS IN VIDEO COMPRESSION WITH PARITY HIDING Public/Granted day:2014-01-02
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