发明名称 Rate Control Model Adaptation Based on Slice Dependencies for Video Coding
摘要 Statistics for estimating quantization factors of a coding-unit type (e.g., B-coded or I-coded) pictures are determined from other, possibly different (e.g., P-coded) pictures, or previously coded coding-units. Bit rate and quality relationships between such coding-unit types may be used with the quantization parameters. Estimating bit rate and quality relationships between coding-unit types enables accurate rate control for pictures regardless of their coding-unit type. Bit rate and quality relationships between coding-unit types can be used with multiple rate control models to increase compression. Rate control parameters may be adjusted with statistics generated by a motion estimation and compensation framework. Rate control performance may be controlled in transcoding compressed bit streams.
申请公布号 US2011090960(A1) 申请公布日期 2011.04.21
申请号 US20090999150 申请日期 2009.06.15
申请人 DOLBY LABORATORIES LICENSING CORPORATION 发明人 LEONTARIS ATHANASIOS;TOURAPIS ALEXANDROS
分类号 H04N11/02 主分类号 H04N11/02
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