摘要
本文提出了一种新的嵌入零树小波图像编码算法。该算法能够通过合理分配比特、改进零树集合、完善分类策略等措施进一步提高SPIHT算法的工作效率。实验结果表明:本文算法是一种高效的图像编码算法,其压缩速度、图像复原质量等关键性技术指标均明显优于SPIHT算法。
In this paper, a new embedded zerotree wavelet image coding algorithms is presented, in which the bit allocation is changed, the zerotree set is improved and the partition-sorting strategy is revised. The experimental results show that our proposed coding method performs better than that of SPIHT in the aspects of PSNR, encoding time and decoding time.
出处
《通信学报》
EI
CSCD
北大核心
2002年第8期113-116,共4页
Journal on Communications
基金
国家自然科学基金资助项目(69974032)
