Patent ID: 9264584
Filing Date: 2016-02-16
CPC Classification: G11B,H04N

Claim Text:
1. A method for synchronizing a first video file and a second video file, the method comprising: detecting at least one shot boundary in each of the first video file and the second video file; selecting a shot boundary, from the at least one detected shot boundary in the first video file, as a first reference point; selecting a shot boundary, from the at least one detected shot boundary in the second video file, as a second reference point; transforming images depicting the first reference point and the second reference point into a log-polar domain; extracting a plurality of features associated with the first reference point and the second reference point; comparing each of the plurality of features extracted from the first reference point to the corresponding each of the plurality of features extracted from the second reference point in the log-polar domain based in part on normalized cross correlation; computing a matching index, indicative of the extent of match between the extracted features of the first reference point and the second reference point, based on the comparison; and generating a notification indicating the synchronization of the first video file and the second video file if the matching index is determined to be greater than a pre-defined matching threshold, wherein the pre-defined matching threshold is an adaptive threshold based in part on the number of extracted features.