PROCEDURE AND DEVICE FOR DETECTING FADES IN A SEQUENCE OF IMAGES
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United States of America Patent
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app pub date -
Mar 21, 2012
filing date -
Jun 23, 2005
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Abandoned
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Abstract
In order to detect a fade in a sequence of images, a luminance level is calculated for each of the images of a window (termed a detection window) that is N consecutive images in length, and for the image preceding the detection window. A difference of luminance level between the luminance level of the current image and the luminance level of the image preceding the current image is calculated. This is done for each of the N images of the detection window. The presence of a fade for the detection window is deduced if, for at least k images of the detection window, the difference of luminance level is greater than a predefined threshold, with 2<=k<=N.
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