Patent ID: 6393055
Filing Date: 2002-05-21
Classification: H04N

Abstract:
A method of switching from a first video sequence to a second one, both old and new sequences being composed of pictures of type T=I, P or B according to the fact that said pictures are independently coded, or predicted from earlier I or P pictures, or bidirectionally predicted from earlier and later P pictures and/or I pictures, wherein an additional sequence of k pictures is inserted at the switching point between the two sequences, k having a value sufficient in order to have compatible sequences and said additional pictures being coded with a few number of bits;wherein the following steps are implemented: (a) the old sequence to be replaced by the new one is cut on a P picture, at a first switching point, and a sequence of k minimal P pictures is then inserted; (b) after this sequence of additional pictures, at a second switching point said new sequence is inserted; wherein said sequence is a sequence of k uniform colour pictures.