1 January 1996 Subband absolute moment block truncation coding
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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.
Kai-Kuang Ma, Kai-Kuang Ma, Sarah A. Rajala, Sarah A. Rajala, } "Subband absolute moment block truncation coding," Optical Engineering 35(1), (1 January 1996). https://doi.org/10.1117/1.600891 . Submission:
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