CODING SYSTEMS

摘要

In an implementation, a supplemental sequence parameter set (“SPS”) structure is provided that has its own network abstraction layer (“NAL”) unit type and allows transmission of layer-dependent parameters for non-base layers in an SVC environment. The supplemental SPS structure also may be used for view information in an MVC environment. In a general aspect, a structure is provided that includes (1) information (1410) from an SPS NAL unit, the information describing a parameter for use in decoding a first-layer encoding of a sequence of images, and (2) information (1420) from a supplemental SPS NAL unit having a different structure than the SPS NAL unit, and the information from the supplemental SPS NAL unit describing a parameter for use in decoding a second-layer encoding of the sequence of images. Associated methods and apparatuses are provided on the encoder and decoder sides, as well as for the signal.

主权项

1. A decoding method comprising:
accessing information from a sequence parameter set (“SPS”) network abstraction layer (“NAL”) unit, the SPS being a syntax structure which contains syntax elements that apply to zero or more entire coded video sequences, and the information describing a parameter for use in decoding a coded first-layer of an image in a sequence of images; accessing supplemental information from a NAL unit having a different NAL unit type code from that of the SPS NAL unit, and the supplemental information from the NAL unit indicating (i) a temporal indicator parameter having layer dependent information for use in decoding a coded second-layer of the image in the sequence of images; and decoding the coded first-layer, and the coded second-layer, based on, respectively, the accessed information from the SPS NAL unit, and the accessed supplemental information from the NAL unit.