A method and apparatus for detecting a fade within a sequence of digital motion video frames. A first frame and a previous frame are selected from the sequence as first and second regions, respectively, for processing. The mean of the first region and the mean of the second region are each calculated...http://www.google.de/patents/US5245436?utm_source=gb-gplus-sharePatent US5245436 - Method and apparatus for detecting fades in digital video sequences