Abstract
The linear CCD camera which applies to micro-image measuring system must have been calibrated before working. The separate calibration method of linear CCD camera’s internal and external orientation parameters is proposed in the paper. The imaging model of the linear camera has been studied, and the equal parallel lines are used to calibrate internal parameters of camera in the experiment where the industrial environment is simulated. In addition, parallel lines and tri-forked stencil are used to calibrate external orientation parameters in the industrial field, such as the attitude angel. The separate calibration method has reduced the calibration task in the industry, and the calibration template is easy to make. The results show that the testing accuracy improves greatly by using the calibrated camera for measuring the gauge, and the calibrated camera can be easily applied to other measurement environment.
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