Target positioning method and device based on digital elevation model, equipment and medium

• Main Authors: QI FENG, SHI ZHENLONG, PENG YUNCHAO, LI XIN, WANG MENGMENG, CAO DANFU, MAO JUNHUI, GAN BANG, SUO LEI, MA KAIJUN, LU YU, LI YAPING
• Format: Patent
• Language: Chinese; English
• Published: 02.05.2023
• Subjects: GYROSCOPIC INSTRUMENTS; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SURVEYING; TESTING

The invention relates to a target positioning method, device and equipment based on a digital elevation model, and a medium, and the method comprises the steps: obtaining a full-dynamic video for a to-be-positioned target, obtaining each frame of image in the full-dynamic video, and for each frame of image, carrying out the positioning of the to-be-positioned target according to a pod parameter and an unmanned plane parameter corresponding to the image, pixel point coordinates corresponding to a to-be-positioned target in the image are converted into geographic coordinates; according to geographic coordinates corresponding to a to-be-positioned target in each frame of image, determining a predicted altitude corresponding to the to-be-positioned target; determining a real altitude corresponding to the to-be-positioned target according to the geographic coordinates corresponding to the to-be-positioned target in each frame of image and a preset digital elevation model; and determining a positioning result of th