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fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Xie, Lili; Huang, Shujun; Zhang, Zonghua; Gao, F.; Jiang, Xiang (2014)
Languages: English
Types: Unknown
Subjects: QC

Classified by OpenAIRE into

ACM Ref: GeneralLiterature_MISCELLANEOUS, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, ComputingMethodologies_COMPUTERGRAPHICS
arxiv: Astrophysics::Instrumentation and Methods for Astrophysics
This paper presents a novel method to accurately calibrate a DLP projector by using an optical coaxial camera to capture\ud the needed images. A plate beam splitter is used to make imaging axis of the CCD camera and projecting axis of the DLP\ud projector coaxial, so the DLP projector can be treated as a true inverse camera. A plate having discrete markers on the\ud surface will be designed and manufactured to calibrate the DLP projector. By projecting vertical and horizontal\ud sinusoidal fringe patterns on the plate surface from the projector, the absolute phase of each marker’s center can be\ud obtained. The corresponding projector pixel coordinate of each marker is determined from the obtained absolute phase.\ud The internal and external parameters of the DLP projector are calibrated by the corresponding point pair between the\ud projector coordinate and the world coordinate of discrete markers. Experimental results show that the proposed method\ud accurately obtains the parameters of the DLP projector. One advantage of the method is the calibrated internal and\ud external parameters have high accuracy because of uncalibrating the camera. The other is the optical coaxes geometry\ud gives a true inverse camera, so the calibrated parameters are more accurate than that of crossed-optical-axes, especially\ud the principal points and the radial distortion coefficients of the projector lens.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • [1] Zhang Z. H., "Review of single-shot 3D shape measurement by phase calculation-based fringe projection techniques," Opt. Lasers Eng., 50, 1097-1106 (2012).
    • [2] Zhang Z. H., Ma H. Y., Guo T., Zhang S. X., Chen J. P., "Simple, flexible calibration of phase calculationbased three-dimensional imaging system," Opt. Lett., 36, 1257-1259 (2011).
    • [3] Zhang Z. H., Huang S. J., Meng S. S., Gao F.and Jiang X. Q., "A simple, flexible and automatic 3D calibration method for a phase calculation-based fringe projection imaging system," Opt. Express, 21, 12218-12227 (2013).
    • [4] Zhang Z. Y., "A flexible new technique for camera calibration," IEEE T. Pattern Anal., 22, 1330-1334 (2000).
    • [5] Zhang. S., and Chung R., "Use of LCD panel for calibrating structured-light-based range sensing system," IEEE T. Instrum. Meas. 57, 2623- 2630 (2008).
    • [6] Falcao G., Hurtos N., Massich J.and Fofi D., "Projector-Camera Calibration Toolbox," Tech. Rep., 2009, available at http://code.google.com/p/procamcalib.
    • [7] Ma S. D., Zhu R. H., Quan C., et al, "Flexible structured-light-based three-dimensional profile reconstruction method considering lens projection-imaging distortion," Appl. Opt. 51, 2419-2428 (2012).
    • [8] Moreno D. and Taubin G., "Simple, accurate, and robust projector-camera calibration," Opt. Express. , 39(8),23-28 (2011).
    • [9] Chen C. Y. and Chien H. J., "An incremental target-adapted strategy for active geometric calibration of projector-camera systems," Sensors, 3, 2664-2681 (2013).
    • [10] Anwar H., Din I., and Park K.,"Projector calibration for 3D canning using virtual target images," Int. J. Precis. Eng. Man.13(5),125-131(2012).
    • [11] Drar´eni J., Roy S.and Sturm P., "Geometric video projector auto-calibration," IEEE Computer Vision and Pattern Recognition Workshops, 39-46(2009).
    • [12] Zhang S. and Huang P. S., "Novel method for structured light system calibration," Opt. Eng., 45(6), 83- 101(2006).
    • [13] Li Z. W. and Shi Y. S., "Projector calibration algorithm for the structured light measurement technique," Opt. Express., 11(29), 3061-3065(2009).
    • [14] Zhang X. and Zhu L. M., "Projector calibration from the camera image point of view," Opt. Eng., 48, 117208 (2009).
    • [15] Fitzgibbon A., Pilu M. and Fisher R. B., "Direct least square fitting of ellipses," IEEET. Pattern Anal., 21, 476- 480 (1999).
    • [16] Zhang Z. H., Towers C. E. and Towers D. P., "Time efficient colour fringe projection system for 3-D shape and colour using optimum 3-frequency interferometry," Opt. Express., 14, 6444-6455 (2006).
    • [17] J.-Y. Bouguet, \Camera Calibration ToolBox for Matlab, Online available at:http://www.vision.caltech.edu/bouguetj/calib doc
    • [18] Ben H., A., et al, "Flexible calibration of structured-light systems projecting point patterns," Computer Vision and Image Understanding 117(10), 1468-1481(2013).
    • [19] Chen F., Brown G M. and Song M.," Overview of three-dimensional shape measurement using optical methods, " Opt. Eng., 39(1), 10-22(2000).
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