基于SVM的高分时序冬小麦种植区提取研究

关士英,谢传节,袁占良,刘高焕

Study on Extraction of Winter Wheat Planting Area based on SVM

Shiying Guan,Chuanjie Xie,Zhanliang Yuan,Gaohuan Liu

表5 分类精度

Table 5 Classification accuracy

类别 制图精度/% 用户精度/% Kappa系数 总体精度/% NDVI 92.89 89.4 0.658 4 88.172 4 EVI 96.29 99.77 0.789 1 93.980 5 影像主成分 96.51 95.31 0.811 5 91.653 7 NDVI主成分 91.24 85.44 0.763 8 87.493 1 EVI主成分 95.96 96.54 0.783 7 91.486 1 NDVI+影像主成分 98.91 98.44 0.786 7 93.766 3 EVI+影像主成分 99.18 98.6 0.920 2 97.678 1 NDVI主成分+影像主成分 98.82 98.45 0.782 4 93.627 3 EVI主成分+影像主成分 98.67 98.48 0.802 7 94.205 1 NDVI主成分+EVI主成分+影像主成分 98.69 98.48 0.800 6 94.143 3