Research on the Model of Positioning System and its Application
Digital Cameras positioning has a wide range of application in the aspect of traffic monitoring (e-police). The introduction of space Cartesian coordinate system together with the principle of image formation of digital camera and the physical relations among image, camera, and the original picture is where the general linear space model, with the Gaussian formula, Physical optics imaging as the constraint condition, is built, putting forward the theoretical formula of pinpointed coordinates of the center of the circle in the target plane on the plane of camera. Then we can safely draw the conclusion that the track of the target plane formed on the plane of an oval track. Second, the use of graphic tools extracting the track of the edge can help to fit out of elliptic equations, showing the coordinates of the five centers.
Shaobo Zhong, Yimin Cheng and Xilong Qu
D. C. Jin et al., "Research on the Model of Positioning System and its Application", Applied Mechanics and Materials, Vols. 50-51, pp. 463-467, 2011