A projector calibration method for monocular structured light system based on digital image correlation

Zhixin Feng

doi:10.1117/12.2315169

20 February 2018 A projector calibration method for monocular structured light system based on digital image correlation

Zhixin Feng

Author Affiliations +

Proceedings Volume 10697, Fourth Seminar on Novel Optoelectronic Detection Technology and Application; 106971W (2018) https://doi.org/10.1117/12.2315169
Event: Fourth Seminar on Novel Optoelectronic Detection Technology and Application, 2017, Nanjing, China

Abstract

Projector calibration is crucial for a camera-projector three-dimensional (3-D) structured light measurement system, which has one camera and one projector. In this paper, a novel projector calibration method is proposed based on digital image correlation. In the method, the projector is viewed as an inverse camera, and a plane calibration board with feature points is used to calibrate the projector. During the calibration processing, a random speckle pattern is projected onto the calibration board with different orientations to establish the correspondences between projector images and camera images. Thereby, dataset for projector calibration are generated. Then the projector can be calibrated using a well-established camera calibration algorithm. The experiment results confirm that the proposed method is accurate and reliable for projector calibration.

Citation Download Citation

Zhixin Feng "A projector calibration method for monocular structured light system based on digital image correlation", Proc. SPIE 10697, Fourth Seminar on Novel Optoelectronic Detection Technology and Application, 106971W (20 February 2018); https://doi.org/10.1117/12.2315169

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