The invention discloses a
power transmission corridor
vegetation threat early warning method based on
satellite remote sensing. The method comprises the steps of performing weighted gray
scale transformation on the image by means of processed
satellite remote sensing data; on the basis of a low-resolution
multispectral image, successfully extracting a
tower and a
power transmission line by adopting a binarization
algorithm and a Canny
edge detection algorithm; based on the high-resolution fusion
spectral image, establishing a spectrum
library by means of a supervised classification
algorithm,performing type identification on
vegetation, finally, calculating a ground
vegetation coverage index, reconstructing a
power transmission corridor, and realizing vegetation
threat early warning according to the vegetation coverage index of the ground in a vegetation and line intersection area. According to the method, the information of the power transmission corridor is successfully extracted byutilizing
satellite remote sensing data with relatively high precision, so that the problems of high difficulty in manual inspection, difficulty in vegetation
hazard monitoring and the like are solved, and a new method is provided for wide-area and large-range rapid inspection of power
transmission line vegetation threats.