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1. WO2007142646 - SCENE CHANGE DETECTION FOR VIDEO

Publication Number WO/2007/142646
Publication Date 13.12.2007
International Application No. PCT/US2006/022341
International Filing Date 08.06.2006
IPC
H04N 7/26 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
24Systems for the transmission of television signals using pulse code modulation
26using bandwidth reduction
H04N 5/14 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
14Picture signal circuitry for video frequency region
CPC
H04N 19/142
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
134characterised by the element, parameter or criterion affecting or controlling the adaptive coding
142Detection of scene cut or scene change
H04N 19/87
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
85using pre-processing or post-processing specially adapted for video compression
87involving scene cut or scene change detection in combination with video compression
H04N 5/147
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
14Picture signal circuitry for video frequency region
147Scene change detection
Applicants
  • THOMSON LICENSING [FR]/[FR] (AllExceptUS)
  • LIN, Shu [CN]/[US] (UsOnly)
Inventors
  • LIN, Shu
Agents
  • LAKS, Joseph J.
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SCENE CHANGE DETECTION FOR VIDEO
(FR) DÉTECTION DE CHANGEMENT DE SCÈNE POUR VIDÉO
Abstract
(EN)
An apparatus (14, 24) and method (30) for detecting scene change by using a sum of absolute histogram difference (SAHD) and a sum of absolute display frame difference (SADFD). The apparatus (14, 24) and method (30) use the temporal information in the same scene to smooth out the variations and accurately detect scene changes. The apparatus (14, 24) and method (30) can be used for both real-time (e.g., real-time video compression) and non-real-time (e.g., film post-production) applications.
(FR)
L'invention concerne un appareil (14, 24) et un procédé (30) pour détecter un changement de scène en utilisant une somme de différences absolues d'histogrammes (SAHD) et une somme de différences absolues d'images affichées (SADFD). L'appareil (14, 24) et le procédé (30) utilisent les informations temporelles présentes dans la même scène pour lisser les variations et détecter précisément des changements de scène. Il est possible d'utiliser l'appareil (14, 24) et le procédé (30) à la fois pour des applications en temps réel (par exemple, une compression vidéo en temps réel) et hors temps réel (par exemple, pour une post-production de film).
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