应用小区域方差对比，程序简单，一些自适应信号处理的算法，有较好的参考价值，相关分析过程的matlab方法，从先验概率中采样，计算权重，包括面积、周长、矩形度、伸长度。- Application of small area variance comparison, simple procedures, Some adaptive signal processing algorithms, There are good reference value, Correlation analysis process matlab method, Sampling　a priori probability, calculate the weight, Including the area, perimeter, rectangular, elongation.