基于高空间分辨率卫星影像的新疆阿拉尔市棉花与枣树分类

姬旭升,李旭,万泽福,姚霞,朱艳,程涛

Pixel-Based and Object-Oriented Classification of Jujube and Cotton Based on High Resolution Satellite Imagery over Alear, Xinjiang

JI XuSheng,LI Xu,WAN ZeFu,YAO Xia,ZHU Yan,CHENG Tao

表3 像素与对象水平的枣树及棉花单时期（2016-09-07）分类精度比较

Table 3 Comparison of user’s accuracies and producer’s accuracies of jujube and cotton for single stages using pixel-based and object-oriented classification methods

空间尺度 Spatial scale 光谱角制图SAM 支持向量机SVM 决策树DTs 随机森林RF 枣树Jujube 棉花Cotton 枣树Jujube 棉花Cotton 枣树Jujube 棉花Cotton 枣树Jujube 棉花Cotton UA PA UA PA UA PA UA PA UA PA UA PA UA PA UA PA 面向对象 Object-oriented 69.17 50.44 63.81 54.40 96.17 60.61 64.47 96.09 97.65 67.75 67.12 92.49 98.29 62.19 65.76 92.29 基于像素 Pixel-based 70.23 52.45 44.21 49.27 93.24 43.90 52.15 87.86 96.48 47.48 54.55 91.91 96.29 52.54 57.95 90.87