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VIDEO TRANSCODING OPTIMIZATION METHOD USING CORRELATION OF SUBJECTIVE AND OBJECTIVE VIDEO QUALITY ASSESSMENT
VIDEO TRANSCODING OPTIMIZATION METHOD USING CORRELATION OF SUBJECTIVE AND OBJECTIVE VIDEO QUALITY ASSESSMENT
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机译：主客观视频质量评估相关性的视频转码优化方法
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摘要
Disclosed is a video transcoding optimization for minimizing video quality degradation which a user recognizes using a correlation between subjective and objective video quality assessment. The video transcoding method may comprise the following steps of: calculating a quantification index which indicates a gray intensity variation between two frames made by coding video content with different bitrates; eliciting a correlation between the quantification index and a video quality assessment index by comparing the quantification index to the video quality assessment index indicating that a video quality difference between scenes coded with different bitrates is quantified through subjective scoring; and performing transcoding of new video content to be serviced using the correlation between the quantification index and the video quality assessment index. [Reference numerals] (AA) Start; (BB) Image content for online service; (CC) End; (S11) Perform a subjective test under controlled test conditions; (S12) Elicit a video assessment index through a user scoring; (S13) Extracting a feature through an image processing technique; (S14) Elicit a video quality assessment index through extracted feature quantification; (S15) Compare an objective assessment result to an assessment result based on image processing for each content; (S16) Establish an image quality assessment standard based on a quantification index; (S17) Perform image transcoding based on the quantification index; (S18) Achieve low capacity/low load encoding
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