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

图17 不同生育期米粉及干穗的直链淀粉敏感小波特征分布图及器官反射光谱 米粉A~C: 蜡熟期、黄熟期、完熟期; 干穗D~G: 乳熟期、蜡熟期、黄熟期、完熟期。蓝色方框代表不同时期存在的相同敏感小波系数。蓝色虚线代表对应波长。黑色箭头代表淀粉吸收波段。

Fig. 17 Correlation scalograms for the identification of significant wavelet features related to GAC and reflectance spectra of rice organs Dried grain powder A-C: dough ripening stage, yellow ripening stage, full ripening stage; dry panicle D-G: milking stage, dough ripening stage, yellow ripening stage, full ripening stage. The blue boxes represent the same sensitive wavelet features at different growth stages, while the blue dashed lines represent the corresponding wavelengths. The black downward arrows on the top of the figure indicate the wavelength locations of absorption features for starch.