公开(公告)号：US10063907B1

公开(公告)日：2018-08-28

申请号：US15615717

申请日：2017-06-06

Applicant: Polycom, Inc.

Inventor： James F. Darrah ,  James E. Carter

IPC: H04N9/475 ,  H04N21/43 ,  H04N21/44

CPC classification number: H04N21/4307 ,  H04N21/4302 ,  H04N21/4341 ,  H04N21/44008

Abstract: Techniques of audio-video synchronization that can be performed on audio and video streams are described. In one scenario, a processor can receive audio-video information comprising a video stream and an audio stream. Each of the video and audio streams can include one or more of: a compressed stream; and a decoded stream. A region of motion in the video stream can be determined based on a property of the video stream. A video signal can be generated based on the determined region of motion. Also, a relative delay between the streams can be determined based, at least in part, on the generated video signal. A delay value associated with one or more of the audio and video streams may be adjusted to assist with synchronizing the audio and video streams.