Patent ID: 6298090
Filing Date: 2001-10-02
Classification: H04N

Abstract:
An apparatus which detects redundant images in a video sequence, the apparatus comprising:a memory which stores computer executable process steps; anda processor which executes the process steps stored in the memory so as (i) to divide a target image in the video sequence into a plurality of regions, (ii) to determine, for each of the plurality of regions, a local value comprising a sum of differences between individual pixels of each region and corresponding pixels in at least one other image in the video sequence, (iii) to compare the local value for each of the plurality of regions to a first predetermined threshold, (iv) to determine a global value comprising a sum of differences between substantially all pixels in the target image and corresponding pixels in the at least one other image, (v) to compare the global value to a second predetermined threshold, and (vi) to indicate that the target image is redundant in a case that (a) the local value does not exceed the first predetermined threshold for all regions, and (b) the global value does not exceed the second predetermined threshold.