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Jae-Beom Lee, Jin-Soo Cho, Alexandros Eleftheriadis. Optimal Shape Coding Under Buffer Constraints. In IEEE International Conference on Image Processing (ICIP), Chicago, IL, October 1998.

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In this paper, we consider an optimal rate control algorithm for shape coding of emerging MPEG-4 compression system. Current MPEG-4 shape coding consists of two sub-steps; First distortion is introduced by scaling down and up way. Then, second, context-based arithmetic coding is applied. Since the arithmetic coding is "lossless", scaling down and up step is considered as a virtual quantizer. We first formulate the buffer-constrained adaptive quantization problem for the shape coding. And then we propose an algorithm for the optimal solution under the buffer constraints. Experimental results are given using MPEG-4 shape coder

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   Author = {Lee, Jae-Beom and Cho, Jin-Soo and Eleftheriadis, Alexandros},
   Title = {Optimal Shape Coding Under Buffer Constraints},
   BookTitle = {IEEE International Conference on Image Processing (ICIP)},
   Address = {Chicago, IL},
   Month = {October},
   Year = {1998}

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