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HEVC-ORIENTED FAST INTRA-FRAME PREDICTION MODE DECISION METHOD AND DEVICE
HEVC-ORIENTED FAST INTRA-FRAME PREDICTION MODE DECISION METHOD AND DEVICE
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机译：面向HEVC的快速帧内预测模式决策方法和装置
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摘要
The present invention discloses an HEVC-oriented fast intra-frame prediction mode decision method, comprising a brightness prediction process and a chromaticity prediction process. The brightness prediction process comprises performing a coarse mode decision process on 35 candidate intra-frame prediction modes to keep multiple prediction modes, combining the multiple prediction modes with the most probable prediction mode, performing a refined search on the combined modes, and configuring an early decision process to determine an optimal brightness prediction mode. The chromaticity prediction process comprises determining candidate chromaticity prediction modes, and performing a traversal search on the chromaticity prediction modes to determine an optimal chromaticity prediction mode. Also disclosed is an HEVC-oriented fast intra-frame prediction mode decision device, comprising a brightness prediction module, a chromaticity prediction module, and a rate-distortion cost determining module. By making an early decision on a brightness prediction mode by means of statistical analysis, the present invention eliminates interdependency between a chromaticity prediction process and a brightness prediction process, thus improving the encoding speed. The present invention is applicable to the field of image communications.
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