State machine based quantization shift offset for video and image compression
By introducing state machine-based quantization shift offset technology into video encoding and decoding, the selection of quantization shift offset is optimized, which solves the problem of low compression efficiency in existing technologies and achieves more efficient data compression and transmission.
CN121100527APending Publication Date: 2025-12-09TENCENT AMERICA LLC
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Patent Information
- Application Number
- CN202480029190.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-10-11
- Filing Date
- 2024-10-15
- Publication Date
- 2025-12-09
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Figure CN121100527A_ABST
Abstract
A method includes receiving a bitstream including encoding information of a current block, the encoding information of the current block indicating a state transition path of a state machine, the state transition path of the state machine including at least a first state transition associated with a first quantization shift offset of one or more first transform coefficients of the current block. The method further includes determining a first quantization shift offset associated with the one or more first transform coefficients according to the first state transition; reconstructing one or more first transform coefficients based on the first quantization shift offset; calculating a residual in a spatial domain of the current block based at least on the one or more first transform coefficients; and reconstructing the current block from the residual in the spatial domain.
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