- Patent Title: Methods and apparatus for improved entropy encoding and decoding
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Application No.: US16878689Application Date: 2020-05-20
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Publication No.: US11218732B2Publication Date: 2022-01-04
- Inventor: Yang Hu , Joel Sole , Xiaoan Lu , Peng Yin , Yunfei Zheng
- Applicant: INTERDIGITAL VC HOLDINGS, INC.
- Applicant Address: US DE Wilmington
- Assignee: INTERDIGITAL VC HOLDINGS, INC.
- Current Assignee: INTERDIGITAL VC HOLDINGS, INC.
- Current Assignee Address: US DE Wilmington
- Agent Ronald Kolczynski
- Main IPC: H04N19/60
- IPC: H04N19/60 ; H03M7/40 ; H04N19/70 ; H04N19/46 ; H04N19/13 ; H04N19/61

Abstract:
Methods and apparatus are provided for improved entropy encoding and decoding. An apparatus includes a video encoder (200) for encoding at least a block in a picture by transforming a residue of the block to obtain transform coefficients, quantizing the transform coefficients to obtain quantized transform coefficients, and entropy coding the quantized transform coefficients. The quantized transform coefficients are encoded using a flag to indicate that a current one of the quantized transform coefficients being processed is a last non-zero coefficient for the block having a value greater than or equal to a specified value.
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