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| Modeling and Calibration for Multicolor Pseudo-random Encoded Flashlight Projector |
| LIAO Su-yin1, WU Xian-liang2, WEI Min1, LI Gui-hua1, ZHANG Mei1 |
| 1.Electrical Engineering and Automatization College of Anhui University, Hefei, Anhui 230039, China;2.Hefei Teachers College, Hefei, Anhui 230001, China |
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Abstract To realize the 3D Euclidean reconstruction expecielly for dynamic 3D sciene based on single image,active vision technique , multicolor pseudo-random encoded flash projection system need to be modeled precalibrated. When the system parameters change, using pseudo random coding patterns of geometric constrains can realize the adaptive reconstruction of 3D scene without recalibration. A linear model is used for projector imaging process modeling based on the projector image quality without abnormal denaturation analysis. A high precision direct calibration method is presented for the projection system by measuring three-dimensional homogeneous coordinates of each projection coding feature points on the target to pre calibrate the internal and external parameters.Calibration accuracy is 0.1 cell. Euclidean reconstruction results is ideal.
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2013, Vol. 34 
