公开(公告)号：WO2014042971A1

公开(公告)日：2014-03-20

申请号：PCT/US2013/058371

申请日：2013-09-06

Applicant: GOOGLE INC.

Inventor： ZHANG, Jiangyang ,  KOKARAM, Anil ,  MUKHERJEE, Debargha ,  CRAWFORD, Andrew Joseph ,  KELLY, Damien

IPC: G11B20/10 ,  G11B27/28 ,  H04N21/43 ,  G06Q10/10

CPC classification number: G11B27/28 ,  G06K9/00765 ,  G06K9/6277 ,  G06K9/6292 ,  G10H1/368 ,  G10L25/06 ,  G10L25/57 ,  G11B27/10

Abstract: Provided are methods for synchronizing multiple video recordings of the same event using audio signals of the recordings. An algorithm is designed to generate candidate time offsets for pairwise matches of video recordings based on audio signals corresponding to the recordings, and combine the candidate time offsets to obtain the most accurate actual time offset between each pair of recordings. Each candidate time offset for each pairwise match of recordings is assigned a confidence measure indicating how likely it is that the particular time offset is correct for the given pair of recordings. The confidence measure assigned to a particular time offset is based on various components and characteristics of the audio signal pair corresponding to the video recordings.

Abstract translation: 提供了使用记录的音频信号同步相同事件的多个视频记录的方法。 一种算法被设计为基于与记录相对应的音频信号来生成视频记录的成对匹配的候选时间偏移，并且组合候选时间偏移以获得每对记录之间最准确的实际时间偏移。 为记录的每个成对匹配的每个候选时间偏移量分配一个置信度量度，指示特定时间偏移对给定的一对记录是否正确的可能性。 分配给特定时间偏移的置信度基于对应于视频记录的音频信号对的各种组件和特性。