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For accurate error estimation, a stereo reconstruction error analysis method for spatial circle is presented. The error estimation model is proposed based on error transfer analysis. The error expressions are derived in the processes of calibration, matching and reconstruction. Then, the reconstruction error estimation model of spatial circle is established. A method of estimating the reconstruction...
According to the depth estimation of the Zooming images, the technology about the calibration of the optical center displacements of different focus is studied by combining the zooming camera features and the general methods of camera calibration. The thick lens model is proposed, and the external parameters of different focus are calibrated by using the method of plane templates. The experiment which...
Aiming at the application of zooming image distance measurement to mobile robot, the related key technologies are investigated in detail in this paper. Firstly, camera parameter calibration is conducted. The camera focus, optical center displacement between two foci, principal point and aberration coefficients are calculated accurately. Then, robust feature matching based on SIFT is realized by the...
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