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Optical Engineering

Subband absolute moment block truncation coding
Author(s): Kai-Kuang Ma; Sarah A. Rajala
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Paper Abstract

In this paper, a new subband coding system called subband absolute moment block truncation coding (SAMBTC) is introduced to compress monochrome images and color images recorded in Y/a and L*u*v* uniform color spaces. The SAMBTC incorporates full-band absolute moment block truncation coding (AMBTC) into subbands along with a new subband dynamic bit allocation algorithm which is derived from the Shannon rate-distortion bound. Simulation results show that the proposed Shannon-bound-based bit allocation algorithm outperforms the commonly used standard-deviation-based bit allocation scheme. Compared with AMBTC, SAMBTC achieves superior imaging without blocking artifacts at low bit rates.

Paper Details

Date Published: 1 January 1996
PDF: 19 pages
Opt. Eng. 35(1) doi: 10.1117/1.600891
Published in: Optical Engineering Volume 35, Issue 1
Show Author Affiliations
Kai-Kuang Ma, Nanyang Technological Univ. (Singapore)
Sarah A. Rajala, North Carolina State Univ. (United States)

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