| 摘要 |
A method for calibrating camera parameters is disclosed, which is carried out on the basis of a moving calibration object subject to the influence of gravity. The method is carried out by causing the calibration object to move along a parabolic trajectory under the influence of gravity, taking pictures of the calibration object that moves along the trajectory with a camera at a preset shutter speed to obtain a plurality of calibration image with the calibration object at different positions and times, and based on the coordinates of the calibration images and the picturing times, estimating homography between an image plane and a trajectory plane, and then using the constraints provided by the homography to obtain intrinsic and extrinsic parameters of the camera.
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