- Patent Title: Method of determining binary codewords for transform coefficients
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Application No.: US13745508Application Date: 2013-01-18
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Publication No.: US10284851B2Publication Date: 2019-05-07
- Inventor: Jian Lou , Xue Fang , Limin Wang
- Applicant: Google Technology Holdings LLC
- Applicant Address: US CA Mountain View
- Assignee: GOOGLE TECHNOLOGY HOLDINGS LLC
- Current Assignee: GOOGLE TECHNOLOGY HOLDINGS LLC
- Current Assignee Address: US CA Mountain View
- Agency: Young Basile Hanlon & MacFarlane, P.C.
- Main IPC: H04N11/02
- IPC: H04N11/02 ; H04N19/13 ; H04N19/124 ; H04N19/91 ; H04N19/18

Abstract:
A system is provided for creating binary codewords for transform coefficients used for relating transform units (TUs) divided into coding units (CUs) in a High Efficiency Video Coding (HEVC) system. The system provides binarization of the codewords and removes unnecessary operations to reduce system complexity and increase compression performance. The system generates transform coefficients that relate the TUs and begins by providing a parameter variable (cRiceParam) set to an initial value of zero. Significant transform coefficients are converted into binary codewords based on the current value of the parameter variable, and the parameter variable is then updated with a new current value after each transform coefficient has been converted. Updating can be provided with reference to table values or the values can be provided from combination logic.
Public/Granted literature
- US20130188694A1 METHOD OF DETERMINING BINARY CODEWORDS FOR TRANSFORM COEFFICIENTS Public/Granted day:2013-07-25
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