基于mRMR特征优选算法的多光谱遥感影像分类效率精度分析

程希萌, 沈占锋, 邢廷炎, 夏列钢, 吴田军

Efficiency and Accuracy Analysis of Multispectral Image Classification Based on mRMR Feature Selection Method

CHENG Ximeng,SHEN Zhanfeng,XING Tingyan,XIA Liegang,WU Tianjun

表4 KNN分类效率精度对比

Tab. 4 Comparison of the efficiency and accuracy between KNN classification methods

方法组合 分类时间/s 总分类精度/(%) Kappa系数 KNN 276.014 80.5 0.696 KNN+BD 212.306 84.0 0.751 KNN+HM 195.178 82.0 0.719 KNN+F 77.156 81.0 0.705