Patent ID: 7027508

Claim:
An AV signal processing apparatus for detecting a boundary between scenes, comprising: feature amount extraction means for extracting feature amounts of segments each formed from a series of frames which form an AV signal; similarity measurement means for measuring a similarity between a segment and other segments in a predetermined time domain between the past and the future using said feature amounts; similar segments detection means for detecting similar segments according to said similarity for each segment in said predetermined time domain; similar segments counting means for counting said similar segments in said past and said future in said predetermined time domain for each segment; boundary likelihood measurement calculation means for calculating boundary likelihood measurement value according to a counted amount of said similar segments in said predetermined time domain for each segment; pattern detection means for detecting a pattern of existence of said boundary likelihood measurement values in said predetermined time domain; boundary discrimination means for discriminating a boundary of a scene according to said pattern; and scene intensity value calculation means for calculating a scene intensity value from a total of the absolute values of said boundary likelihood measurement values of at least four segments including a present segment for each segment; wherein said boundary discrimination means discriminates a boundary of a scene according to said scene intensity value which reaches a predetermined value.