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Event based audio-video sync detection

專利號(hào)
US11659217B1
公開(kāi)日期
2023-05-23
申請(qǐng)人
Amazon Technologies, Inc.(US WA Seattle)
發(fā)明人
Hooman Mahyar; Avijit Vajpayee; Abhinav Jain; Arjun Cholkar; Vimal Bhat
IPC分類
H04N21/242; H04N21/234; H04N21/233
技術(shù)領(lǐng)域
audio,video,frames,bins,feature,bin,frame,sets,may,component
地域: WA WA Seattle

摘要

Techniques are described for detecting desynchronization between an audio component and a video component of a media presentation. Feature sets may be determined for portions of the audio component and portions of the video component, which may then be used to generate correlations between portions of the audio component and portions of the video component. Synchronization may then be assessed based on the correlations.

說(shuō)明書(shū)

In some implementations the modification to the audio component or the video component may be limited to a single shot or a single scene. This might be useful where, for example, video frames on either side of a shot or scene boundary may differ significantly from the video frames within a single shot or scene. Furthermore, post-production editing of a media presentation may result in transitions between different audio and/or video frames at shot or scene boundaries. Thus, desynchronization between the audio component and the video component may be limited to a shot or scene. In such implementations, the modification may similarly extend to the shot or scene, for example delaying or advancing all audio within a shot or scene by a fixed amount of time.

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