Aerial photography key information judgment and extraction method and system based on collaborative remote sensing

• Main Authors: FENG NANZHAN, LEI LEI, LYU PINGHAI, WU JIAN, WANG LIANG, HU QIANG, GUO ANXIANG, BAI XIAOCHUN, JING YAN, WANG YANFEI, ZHANG XINYI, MA YUEHONG, GUO YUNTAO, WAN HAO, WANG CHENXI
• Format: Patent
• Language: Chinese; English
• Published: 16.03.2021
• Subjects: CALCULATING; COMPUTING; COUNTING; HANDLING RECORD CARRIERS; PHYSICS; PRESENTATION OF DATA; RECOGNITION OF DATA; RECORD CARRIERS

The invention discloses an aerial photography key information judgment and extraction method and system based on cooperative remote sensing, and the method comprises the following steps: multi-scale contour detection, bottom segmentation block generation based on watershed transformation, multi-scale segmentation image generation based on contour intensity, segmentation image processing, thresholddetermination, final processing, and finishing of aerial photography key information judgment and extraction. According to the method, remote sensing images are subjected to multi-scale contour detection, watershed transformation and contour weight information analysis processing to obtain segmented images of different scales, and training sample point data layers are obtained through the steps of carrying out NDVI operation on the segmented images, extracting RGB image layer information of aerial photos, carrying out VDVI operation on the RGB image layer information and carrying out visual interpretation at the same