| 摘要 |
A video predictive decoding device comprising: input means that inputs a bitstream including compressed picture data for a plurality of pictures constituting a video sequence, where each picture has a network abstraction layer unit type that identifies said picture as one of a plurality of picture types including random access picture, random access skipped (RAS) leading picture and non-RAS leading picture; reconstruction means which decodes the compressed picture data to reconstruct pictures based on the picture types; and output means which outputs the reconstructed pictures; wherein 1) a random access picture is the first picture in the bitstream in decoding order when the decoding process, which starts at any random access picture in the bitstream, is started from said random access picture; 2) RAS leading picture is the picture which precedes the associated random access picture in output order, and is not decodable when the associated random access picture is the first picture in the bitstream in decoding order; 3) non-RAS leading picture is the picture which precedes the associated random access picture in output order, and is decodable, and wherein RAS leading picture is not output when the associated random access picture is the first picture in the bitstream in decoding order. 51 12625889vi |
