Cloud platform-based mangrove forest remote sensing rapid and accurate extraction method
An extraction method, a technology of mangroves, which is applied in image data processing, instruments, character and pattern recognition, etc., can solve the problems that remote sensing technology cannot quickly and accurately identify and obtain the distribution of mangroves, so as to improve the accuracy and reliability, fast and accurate Identify and acquire, reproducible and robust effects
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[0044] A cloud-based remote-sensing rapid and accurate extraction method for mangroves of the present invention is applied to the rapid and accurate extraction of mangrove spatial distribution information in Fujian Zhangjiang Estuary Mangrove National Nature Reserve, specifically comprising the following steps:
[0045] (1) Use the Google Earth Engine cloud platform to screen the Sentinel-2MSI images of the study area, that is, the Zhangjiang Estuary Mangrove National Nature Reserve in Fujian from January to March and October to December, and the cloud cover is less than 10%. An image set is formed; after calculation, there are 12 eligible images in the study area in 2020, and the image screening results are as follows: figure 1 shown.
[0046] (2) Calculate the vegetation index (NDVI) of each image in the image set to obtain the spatial NDVI image, and combine the NDVI image as a band into the original image. The calculation formula of vegetation index NDVI is:
[0047] NDV...
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