Image analysis – Image compression or coding – Interframe coding
Patent
1997-04-29
1999-06-08
Couso, Jose L.
Image analysis
Image compression or coding
Interframe coding
G06K 936
Patent
active
059110082
ABSTRACT:
A scheme for detecting shot boundaries in the compressed video data at high speed and high accuracy. In this shot boundary detection scheme, a Predictive-picture (P picture) change is calculated from a P picture sequence in the input video data which is compressed by an inter-frame/inter-field forward direction prediction coding scheme, according to coded data contained in the P picture sequence, while an Intra-picture (I picture) change is calculated from an I picture sequence in the input video data which is compressed by an intra-frame/intra-field coding scheme, according to coded data contained in the I picture sequence. Then, a shot boundary is detected by evaluating both the P picture change and the I picture change.
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Akutsu Akihito
Hamada Hiroshi
Niikura Yasuhiro
Satoh Takashi
Shimizu Atsushi
Couso Jose L.
Nippon Telegraph and Telephone Corporation
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