发明名称 PROCEDURE AND DEVICE FOR DETECTING FADES IN A SEQUENCE OF IMAGES
摘要 <p>The invention relates to a method for detecting a fade in a sequence of images which comprises the following steps: calculating, for each of the images of a window N consecutive images in length, termed the detection window, and for the image preceding the detection window, a luminance level on the basis of the luminance values associated with each of the pixels of each of the images; calculating, for each of the N images of 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; and deducing therefrom the presence of a fade for the detection window if, for at least k images of the detection window, said difference of luminance level is greater that a predefined threshold, with 2&nlE;k&nlE;N.</p>
申请公布号 EP1894417(A2) 申请公布日期 2008.03.05
申请号 EP20060763780 申请日期 2006.06.20
申请人 THOMSON LICENSING 发明人 NOBLET, LUDOVIC;JOUAN, MICHEL;MERCIER, ERIC
分类号 H04N19/87 主分类号 H04N19/87
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