Calibration of Camera System of TV Theodolite
大视场电视经纬仪摄像系统的标定研究

The important parameters of camera system of TV theodolite have gotten with itself azimuth and pitching angle measure function.Camera focus can be measured through changing a little angle with constant target.Image center was gotten through comparing distances of target points in image because of symmetry of lens distortion.Through moving azimuth and pitching angle a distortion net of whole image was built.Then distortion model was set up with different models.