Patent ID: 9602844
Date: 2017-03-21
CPC Classifications: H03M,H04L,H04N

Claim:
1. A picture decoding method for decoding a bit stream of a coded picture signal comprising a header stream and a frame stream, the header stream including header information which is common information of a whole picture signal corresponding to slice data comprising a plurality of macroblocks and the frame stream including frame information which is the picture signal itself corresponding to the slice data comprising the plurality of macroblocks, wherein the bit stream is generated by the following steps including: the picture decoding method comprising: a demultiplexing step of receiving a bit stream of the coded picture signal and demultiplexing the bit stream of the coded picture signal into the header stream and the frame stream; a header information decoding step of receiving the header stream and performing non-arithmetic decoding on the header stream, so as to output a header code value signal corresponding to each of header parameters; and a frame information decoding step of receiving the frame stream and performing only arithmetic decoding on the frame stream comprising a frame code value signal with reference to the header parameter, so as to output all decoded macroblocks of the slice data, wherein the header information decoding step further includes a selecting step of selecting one of a fixed length decoding method or a variable length decoding method according to a syntax structure signal, and wherein the header information decoding step further includes: