Optimal bit allocation under multiple
نویسنده
چکیده
We present a new Lagrangian-based iterative technique for rate{distortion optimization under multiple rate constraints. We show how for sets of \lin-ear" constraints this technique can be proven to be optimal up to a convex hull approximation. As an application we consider the problem of optimal buuer-constrained bit allocation. Our technique can be used to nd an excellent approximation to the solutions achieved using dynamic programming. In cases where the buuer size is relatively large our approach shows a signiicant reduction in complexity as compared to dynamic programming.
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