ROBUST ENCODING AND DECODING OF PICTURES IN VIDEO

摘要

The present embodiments introduce a new type of random access point in video bitstreams that can be used for random access operations but can be represented in encoded form at a lower bit cost as compared to IRAP pictures. The random access point is a dependent random access point (DRAP) picture that is encoded and decoded as a temporal predictive picture using an IRAP picture and/or a previous, according to a decoding order, DRAP picture as sole reference picture(s) for the DRAP picture. The DRAP picture constitutes a random access point in a video bitstream.

主权项

1. A method of decoding pictures in a video bitstream, said method comprising:
decoding an intra random access point, IRAP, picture of said video bitstream; and decoding a dependent random access point, DRAP, picture of said video bitstream as a temporal predictive picture using said IRAP picture and/or a previous, according to a decoding order, DRAP picture in said video bitstream as sole reference picture(s) for said DRAP picture, wherein said DRAP picture constitutes a random access point in said video bitstream.