10 April 2013 Projector calibration with error surface compensation method in the structured light three-dimensional measurement system
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Optical Engineering, 52(4), 043602 (2013). doi:10.1117/1.OE.52.4.043602
Abstract
In the structured light three-dimensional measurement system, calibration is the key to the measurement accuracy; however, conventional calibration methods for the projector are either too complex or inaccurate. Therefore, we propose a simple and accurate method to calibrate the projector. In this method, the calibration points in the camera image plane can be mapped to the projector according the homography of the planar projection. In addition, an error surface compensation method is developed to minimize mapping errors caused by lens distortion of the camera and projector. As a result, the projector can be calibrated with the same method as the camera. Experiments are conducted to verify the effectiveness of the proposed method.
© 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)
Junhui Huang, Zhao Wang, Jianmin Gao, Qi Xue, "Projector calibration with error surface compensation method in the structured light three-dimensional measurement system," Optical Engineering 52(4), 043602 (10 April 2013). http://dx.doi.org/10.1117/1.OE.52.4.043602
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KEYWORDS
Calibration

Projection systems

Cameras

Distortion

Error analysis

Virtual colonoscopy

Optical testing

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