基于小波分析的水稻籽粒直链淀粉含量高光谱预测

张骁, 闫岩, 王文辉, 郑恒彪, 姚霞, 朱艳, 程涛

Application of continuous wavelet analysis to laboratory reflectance spectra for the prediction of grain amylose content in rice

ZHANG Xiao, YAN Yan, WANG Wen-Hui, ZHENG Heng-Biao, YAO Xia, ZHU Yan, CHENG Tao

表7 水稻籽粒直链淀粉含量光谱预测精度对照表

Table 7 Assessment of prediction accuracies for rice GAC with determined spectral indexes and wavelet features

测试器官 Organ of measurements 最佳时期 Optimal growth stage 光谱参数 Spectral feature 均方根误差 RMSE (%) 偏移值 Bias (%) 相对均方根误差 RRMSE (%) 米粉 Dried grain powder 蜡熟期 Dough ripening stage NDAI1505,1455 3.96 3.30 61.63 WF1380,3 7.73 7.32 120.31 WF2037,6 1.51 0.44 23.50 WF2037,5 3.40 2.14 52.92 干穗 Dried panicle NDAI2265,2135 2.17 0.61 37.52 WF1835,3 1.91 -0.84 56.17 WF2037,6 1.49 -0.17 25.76 WF2037,5 2.77 -1.01 81.74