Joint optimal bit allocation and best-basis selection for wavelet packet trees

نویسندگان

  • Jill R. Goldschneider
  • Eve A. Riskin
چکیده

In this paper, an algorithm for wavelet packet trees that can systematically identify all bit allocations/best-basis selections on the lower convex hull of the rate-distortion curve is presented. The algorithm is applied to tree-structured vector quantizers used to code image subbands that result from the wavelet packet decomposition. This method is compared to optimal bit allocation for the discrete wavelet transform.

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تاریخ انتشار 1998