Scene change detection for video

H - Electricity – 04 – N

Patent

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H04N 7/26 (2006.01) H04N 5/14 (2006.01)

Patent

CA 2654574

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.

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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