This paper introduces a high energy-compaction-rate prefiltering,and proposes a new multiwavelet zerotree image coding method that is based on multi-thresh-old quantization.

• 本文采用能量集中率很高的多小波预处理方法,对多小波变换系数采用多门限逐级量化方法,提出了一种新的多小波零树图像编码方案,仿真试验表明该方法的优越性。