图象纹理分析方法及发展(二)

Texture Analysis Methods and Their Development

7.随机游动法(Random Walk Procedures) Wechsler和Kidode提出一种分析纹理的随机游动法。该方法将与二维随机游动有关的移动概率作为基本象素点灰度值的函数,在计算和比较“到达分布”的基础上分析纹理。用随机游动法可以求得一个窗口内所有象素点起始的每一条边界离开窗口的概率。如果计算时只考虑窗口内中心象素点,那么,整个计算时间会大大地缩短,且效果也会提高。

The statistical methods and development in texture analysis are systematically reviewed in this paper. Some main statistical texture analysis method currently used are introduced in this paper. These methods are: GLDM, Filter Mask, PSM, Cooccurrence Features, GLRLM, Autocorrelation Features methods derived from texture models and relative extrema measures, etc. The relation between these methods and their essential procedures are discussed. Finally, the accuracy and complex natures of these methods are compared, and some recent achievements and the problems of texture analysis are presented.