摘要
本文提出一种基于正交小波滤波器组的精确图象边界扩展方法,它能有效地克服传统扩展算法中存在的重构图象边界失真的问题,并能获取较高的压缩比,实验结果表明,本文的方法有着非常良好的效果。
This paper proposes an accurate boundary extension method based on orthogonal wavelet filter banks,which can eliminate the boundary distortion of reconstructed image by traditional extension methods, and at the same time achieve high compression ratio. Experimental results show that our algorithm has well performance.
出处
《信号处理》
CSCD
1998年第A12期11-15,共5页
Journal of Signal Processing
关键词
小波变换
图象压缩
图象边界扩展
图象编码
Wavelet Transform, decomposition, Boundary Extension, Boundary Distortion, Sub-band