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提出了利用遥感影像分割获取像斑进行变化检测的方法。将归一化互信息引入到遥感影像变化检测中,利用像斑的灰度直方图以及联合灰度直方图计算像斑的归一化互信息,依据条件熵最小的原则,获取最佳划分阈值,并与相关系数法进行了比较。实验结果显示归一化互信息法更适用于遥感影像变化检测。 更多还原

【Abstract】 This paper proposed a change detection method,which uses the segments obtained from the image segmentation.Normalized mutual information was introduced into the change detection of remote sensing images.Histogram and joint histogram of segments are used to calculate the normalized mutual information.The best threshold was calculated based on the smallest conditional entropy.Using the normalized mutual information the method compared with the one using correlation coefficient,it shows the normali... 更多还原