Abstract

Projectors are widely used in high-precision industrial fields, and the accuracy of projector calibration is the key to achieve system accuracy. Therefore, it is necessary to perform high-precision calibration for the projector. This paper analyzes the pinhole mathematical model and classifies the calibration method of the projector: projector calibration method based on virtual mark points and projector calibration method based on phase-shifting technique. Then the principle and methods of each calibration method are summarized, the experiment is carried out and the calibration results are compared. Finally, the advantages and disadvantages of two calibration methods are analyzed, which has the certain guiding significance in the choice of projector calibration method.

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