METHOD AND DEVICE FOR ACCURATELY AND EASILY MEASURING A TIME DIFFERENCE BETWEEN VIDEO AND AUDIO

申请公布号：US2010053340(A1)

申请号：US20060091437

申请日期：2006.10.06

申请公布日期：2010.03.04

申请人：

IKEDA HIROAKI;IWAI REIKO

发明人：IKEDA HIROAKI;IWAI REIKO

分类号：H04N17/00

主分类号：H04N17/00

摘要：To solve the problems in the prior art, the present invention provides a method for measuring a time difference between digital video signals and digital audio signals, wherein said method comprises the steps of extracting respective time series data from respective frequency domains of said digital video signals and said digital audio signals; statistically identifying the cross-correlation of said time series data in said frequency domains, thereby measuring the time difference between said digital video signals and said digital audio signals.

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