Method, system, and program product for measuring audio...

H - Electricity – 04 – N

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H04N 9/475 (2006.01)

Patent

CA 2566637

Method, system, and program product for measuring audio video synchronization. This is done by first acquiring audio video information into an audio video synchronization system (601). The step of data acquisition is followed by analyzing the audio information, and analyzing the video information (613). In this phase audio and video information is analyzed, decision boundaries for Audio and Video MuEv-s are determined, and related Audio and Video MuEv-s are correlated (13). In Analysis Phase Audio and Video MuEv-s are calculated from the audio and video information, and the audio and video information is classified into vowel sounds including AA, EE, OO, silence, and unclassified phonemes (607). This information is used to determine and associate a dominant audio class in a video frame (611). Matching locations (619) are determined, and the offset of video and audio (621) is determined.

L'invention concerne un procédé, un système et un produit programme permettant de mesurer la synchronisation audio vidéo. Ce procédé consiste tout d'abord à acquérir une donnée audio vidéo dans un système de synchronisation audio vidéo puis à analyser la donnée audio et à analyser la donnée vidéo. Dans cette phase, on analyse la donnée audio et vidéo, on détermine les limites de décision des MuEv-s audio et vidéo puis on met en corrélation les MuEv-s audio et vidéo. Dans la phase d'analyse, on calcule les MuEv-s audio et vidéo à partir de la donnée audio et vidéo, et on classe la donnée audio et vidéo en sons voyelles, y compris AA, EE, OO, silence et les phonèmes non classés. Cette donnée permet de déterminer et d'associer une classe audio dominante dans une trame vidéo. On détermine les emplacements correspondants puis le décalage vidéo et audio.

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