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

G - Physics – 06 – T

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G06T 17/00 (2006.01)

Patent

CA 2566844

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. The step of data acquisition is followed by analyzing the audio information, and analyzing the video information. Next, the audio information is analyzed to locate the presence of sounds therein related to a speaker's personal voice characteristics. 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, B, V, TH, F, silence, other sounds, and unclassified phonemes. The inner space between the lips are also identified and determined. This information is used to determine and associate a dominant audio class in a video frame. Matching locations are determined, and the offset of video and audio is determined.

L'invention concerne un procédé, un système et un produit-programme de mesure de synchronisation audio vidéo. Pour ce faire, le procédé consiste tout d'abord à acquérir des informations audio vidéo dans un système de synchronisation audio vidéo. L'étape d'acquisition de données est suivie de l'analyse des informations audio, ainsi que de l'analyse des informations vidéo. Ensuite, les informations audio sont analysées afin de localiser la présence de sons associés à des caractéristiques vocales personnelles d'un intervenant. Dans la phase d'analyse, des MuEv audio et vidéo sont calculés à partir des informations audio et vidéo, et les informations audio et vidéo sont classées en sons voyelles tels que AA, EE, OO, B, V, TH, F, silence, autres sons, et phonèmes non classés. L'espace entre les lèvres est également identifié et déterminé. Lesdites informations sont utilisées pour déterminer et associer une classe audio dominante dans une trame vidéo. Des emplacements correspondants sont déterminés et le décalage audio et vidéo est déterminé.

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