Rice leaf starch content remote sensing inversion model and method based on XGBoost regression algorithm
A technology of starch content and remote sensing inversion, which is applied in measuring devices, color/spectral characteristic measurement, and material analysis through optical means, etc. Complicated components and other issues
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[0059] The XGBoost regression algorithm-based remote sensing inversion method of rice leaf starch content in this embodiment is based on the measured hyperspectral data, using the rice planting area (the rice and wheat planting base in Huai'an, Huai'an Academy of Agricultural Sciences, Jiangsu Province, and the rice variety is Huai rice 5 No., the sampling period is the rice jointing stage) collected rice canopy reflectance spectral data and rice leaf starch content data, a total of 48 sampling points, these sampling points are evenly distributed and completely cover the entire rice planting area. The data of 48 sampling points are randomly divided into two parts, of which the data of 36 sampling points are used for model building, and the data of 12 sampling points are used for model testing. The process of remote sensing inversion method for rice leaf starch content based on XGBoost regression algorithm is as follows: figure 1 shown, including the following steps:
[0060] ...
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