Methods for rdo (rate-distortion optimization) based on fit-curves and apparatuses using the same
AssigneeVia Alliance Semiconductor Co., Ltd.
InventorChuanChuan ZHU
Life of this patent
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Abstract
A method for RDO (Rate-Distortion Optimization) based on fit-curves contains at least the following steps: calculating a first fit-curve and a second fit-curve according to information regarding a first frame; carrying information regarding a second frame into the first and second fit-curves to calculate fit distortions and fit bit counts; calculating costs according to the fit distortions and the fit bit counts; determining the best block-division mode for the second frame according to the costs; and dividing the second frame into blocks according to the best block-division mode and encoding the second frame.
Claims12
A method for RDO (Rate-Distortion Optimization) based on fit-curves, comprising:
- calculating a first fit-curve and a second fit-curve according to information regarding a first frame;
- carrying information regarding a second frame into the first and second fit-curves to calculate a plurality of fit distortions and a plurality of fit bit counts;
- calculating a plurality of costs according to the fit distortions and the fit bit counts;
- determining the best block-division mode for the second frame according to the costs;
- and
- dividing the second frame into blocks according to the best block-division mode and encoding the second frame.
An apparatus for RDO (Rate-Distortion Optimization) based on fit-curves, comprising:
- an intra-frame/inter-frame prediction module;
- an RD cost calculation module;
- and
- a curve-fitting module,
- wherein the curve-fitting module calculates a first fit-curve and a second fit-curve according to information regarding a first frame;
- and carries information regarding a second frame into the first and second fit-curves to calculate a plurality of fit distortions and a plurality of fit bit counts,
- wherein the RD cost calculation module calculates a plurality of costs according to the fit distortions and the fit bit counts, and
- wherein the intra-frame/inter-frame prediction module determines the best block-division mode for the second frame according to the costs;
- and divides the second frame into blocks according to the best block-division mode and encodes the second frame.
Dependencies are inferred from the claim text.