Patent ID: 6810145
Filing Date: 2004-10-26
Classification: G06K,G06T,G11B,H04N

Abstract:
Process for detecting a change of shot in a succession of video images, comprising:creating histograms of an image representing the occurrences of luminance values as a function of these values; comparing a histogram of an image T(t) with a histogram of a previous image T(tâˆ’1), wherein the step of comparing consists Â± of; calculating, for an occurrence histo_lum (n,t) corresponding to a luminance value n in the image T(t), the absolute differences between this occurrence and the occurrences histo_lum (n+k, tâˆ’1) of the previous image, k varying from âˆ’K to +K, K being a natural integer; choosing the minimum value Min_Diff (n, t) from among these differences, summing the minimum values for the set of luminance values of the histogram; and comparing the sum obtained with a threshold.