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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1,2,3,4,李旭1,5,万泽福1,2,3,4,姚霞1,2,3,4,朱艳1,2,3,程涛1,2,3,4()
Pixel-Based and Object-Oriented Classification of Jujube and Cotton Based on High Resolution Satellite Imagery over Alear, Xinjiang
JI XuSheng1,2,3,4,LI Xu1,5,WAN ZeFu1,2,3,4,YAO Xia1,2,3,4,ZHU Yan1,2,3,CHENG Tao1,2,3,4()

图7. 基于增益比值的特征重要性
1—4:蓝、绿、红、近红外波段光谱均值 Spectral Blue, Green, Red, NIR Mean;5—8:蓝、绿、红、近红外波段光谱标准差 Spectral Blue, Green, Red, NIR Std;9—12:蓝、绿、红、近红外波段光谱最小值 Spectral Blue, Green, Red, NIR Min;13—16:蓝、绿、红、近红外波段光谱最大值 Spectral Blue, Green, Red, NIR Max;17—20:蓝、绿、红、近红外波段纹理范围 Texture Blue, Green, Red, NIR Range;21—24:蓝、绿、红、近红外波段纹理均值Texture Blue, Green, Red, NIR Mean;25—28:蓝、绿、红、近红外波段纹理方差 Texture Blue, Green, Red, NIR Variance;29—32:蓝、绿、红、近红外波段纹理信息熵 Texture Blue, Green, Red, NIR Entropy;33:对象面积 Area;34:对象外边框周长 Length;35:紧凑型 Compactness;36:凸出的状态 Convexity;37:坚固性 Solidity;38:圆特性 Roundness;39:形状要素 Form Factor;40:延伸性 Elongation;41:矩形形状的度量 Rectangular Fit;42:主方向 Main Direction;43—44:长、短轴长度 Major, Minor Length;45:洞的个数 Number of Holes;46:对象和外轮廓的面积比 Hole Area/Solid Area

Fig. 7. Importance of features based on the gain ratio