Real-time spatial positioning method for mobile monitoring target in geographical scene
A technology for monitoring targets and scenes, applied in the fields of video surveillance and geographic information, which can solve the problems that it is difficult for staff to judge and track the real-time position of moving targets, lack of ground reference objects, etc.
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[0048] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0049] figure 1 A method for real-time spatial positioning of a mobile monitoring target in a geographical scene of the present invention is shown, comprising the following steps:
[0050] Collect or measure high-precision digital elevation models and high-resolution remote sensing image data of monitored geographical areas;
[0051] Using the high-precision digital elevation model and high-resolution remote sensing image data to establish a three-dimensional virtual scene of the monitoring area;
[0052] Set up virtual camera (can set up virtual camera by setting OpenGL imaging function, these imaging functions include projection matrix, observation matrix and viewport matrix) in described three-dimensional virtual scene, make its spatial position and posture and the video camera of shooting monitoring target video image The spatial position and atti...
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