17-2 算術符号を用いたMPEG-1動画像のロスレス再符号化における確率モデルの簡略化(第17部門画像符号化2)

抄録

As an efficient way for archiving the existing video contents compressed by the old standard, we are developing a lossless re-encoding scheme for MPEG-1 video. In this paper, simplified probability models used for arithmetic coding of DCT coefficients are investigated to reduce computation time needed for our coding scheme.