Invention Grant
- Patent Title: Variable length codes for coding of video data
- Patent Title (中): 视频数据编码的可变长度代码
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Application No.: US12979751Application Date: 2010-12-28
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Publication No.: US08410959B2Publication Date: 2013-04-02
- Inventor: Marta Karczewicz , Xianglin Wang
- Applicant: Marta Karczewicz , Xianglin Wang
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM, Incorporated
- Current Assignee: QUALCOMM, Incorporated
- Current Assignee Address: US CA San Diego
- Agent Todd E. Marlette
- Main IPC: H03M7/40
- IPC: H03M7/40

Abstract:
A method and system for entropy coding can comprise, in response to detecting a first symbol combination comprising first run information indicating a first number of contiguous zero coefficients is greater than a cut-off-run value, assigning a first codeword to a first symbol combination, wherein the first codeword comprises an escape code from a first-level VLC table; and in response to a second symbol combination comprising second run information indicating a second number of contiguous zero coefficients is less than or equal to the cut-off-run value, assigning a second codeword to the second symbol combination, wherein the second codeword is from the first-level VLC table. The system and method can further comprise collecting coding statistics for a set of candidate symbol combinations and adjusting a mapping between codewords of the first-level VLC table and a subset of the set of candidate symbol combinations based on the coding statistics.
Public/Granted literature
- US20110248873A1 VARIABLE LENGTH CODES FOR CODING OF VIDEO DATA Public/Granted day:2011-10-13
Information query
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