视频图像压缩的自适应可变坐标法

Adaptive Variable Coordinate Techniques in Image Compression

在对图像变换编码和分形图像压缩编码、矢量量化等的分析的基础上 ,提出自适应可变坐标压缩算法。它的基本思想是 ,利用图像的自相似原理对一组图像空间的基坐标进行改造 ,使其在兼顾图像矢量空间的完整性的同时尽量利用图像的自相似性 ,以达到提高图像压缩效率的目的。并针对相似图像块的特征判定原则提出用小波变换实现图像块间的相似性判定。

This paper presents adaptive variable coordinate techniques on the basis of analyszing image transform,fractal image compression and vector quantification.The point is to raise the compression rate by reconstructing the coardinate system according to the image self likeness theory.It is also suggested to use wavelet transforming algorithm in image resemble judgement.