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- W1541747551 abstract "In this paper, we derive an optimal rate control algorithm for shape coding as defined in the forthcoming MPEG-4 international standard. The current MPEG-4 shape coding scheme consists of two steps: first, distortion is introduced by down and up scaling; then, context-based arithmetic encoding is applied. Since arithmetic coding is lossless, the down up scaling step is considered as a virtual quantizer. We first formulate the buffer-constrained adaptive quantization problem for shape coding, and then propose an algorithm for the optimal solution under buffer constraints. Experimental results are given using an MPEG-4 shape codec." @default.
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- W1541747551 date "2002-11-27" @default.
- W1541747551 modified "2023-09-26" @default.
- W1541747551 title "Optimal shape coding under buffer constraints" @default.
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- W1541747551 doi "https://doi.org/10.1109/icip.1998.723475" @default.
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