发明授权
US08761260B2 Cut detection system, shot detection system, scene detection system and cut detection method 失效
切割检测系统,镜头检测系统,场景检测系统和切割检测方法

Cut detection system, shot detection system, scene detection system and cut detection method
摘要:
A cut detection system includes: an extractor configured to extract macroblock type information at least for every B frame from video compressed data including the macroblock type information; a calculator configured to calculate the number of intra-coded macroblocks for every frame from the extracted macroblock type information; and a detector configured to detect the B frame or a group of picture including the B frame to be a replay cut portion, which is a head portion or last portion of a replay shot, by using a frequency characteristic of the intra-coded macroblocks included in the B frame as determination conditions.
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