Cut detection system, shot detection system, scene detection system and cut detection method

Cut detection system, shot detection system, scene detection system and cut detection method

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 extract...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SAKAI ATSUNORI, MORITA HIROYOSHI, TSUBOTA HIRONO, MASAKI YASUO
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
HANDLING RECORD CARRIERS
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
TRANSMISSION
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Beschreibung
Zusammenfassung: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.