Rapid detection method of UAV hyperspectral pine wood nematode disease based on decoupled risk estimation
A technology for pine wood nematode disease and risk estimation, which is applied in the field of rapid detection of unmanned aerial vehicle hyperspectral pine wood nematode disease, can solve the phenomenon of ground objects with different spectra and same spectrum of foreign objects, salt and pepper noise, and restrictions on hyperspectral image detection Algorithms and other issues to achieve the effect of less redundant calculations and faster reasoning
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[0040] In order to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0041] The invention uses Python language for development and optimization, and the whole process can realize automatic processing.
[0042] Step 1, build a training data set χ containing dead pine trees and unlabeled pixels according to the ground truth P and χ U , this step further includes:
[0043] Step 1.1, annotate the image with the ground truth to obtain a dataset χ that only contains dead pine trees P ;
[0044] Step 1.2, obtain a training data set χ containing unlabeled pixels in the image by random sampling U , the dataset contains samples of dead pine trees and samples of other ground objects at the same time, and the number of unlabeled samples should include all ground object types as much as possible.
[0045] Step 2, perform normalization preproc...
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