Crop remote sensing classification method based on multi-temporal SAR data and multi-spectral data
A classification method and multi-spectral technology are applied to improve the classification accuracy of crop remote sensing. Based on multi-temporal SAR data and multi-spectral data in the field of crop remote sensing classification, it can solve the problems of low image acquisition rate and low crop remote sensing classification accuracy, and achieve high accuracy. high effect
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[0055] Step 1: Download the three-phase multispectral data during the crop growth period (GF1: July 9, 2015, September 15, 2015; Landsat8: August 3, 2015), and select according to the image quality; six Phase Sentinel-1A data (July 3, 2015 (wheat milk ripening period), July 15, 2015 (potato tuber growth period), July 27, 2015 (rice heading period), August 8, 2015 (Potato starch precipitation period), September 1, 2015 (crop maturity period), September 13, 2015 (crop maturity period)), and radiometric calibration, atmospheric correction, orthorectification and geometric Preprocessing such as fine correction, format conversion, radiometric calibration, noise filtering, terrain correction, geometric fine correction and other preprocessing for Sentinel-1A images.
[0056] Step 2: Transproject the Sentinel-1A data processed in Step 1, which is consistent with the multispectral data projection, and cut the multispectral and Sentinel-1A data to the same range according to the researc...
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