期刊
JOURNAL OF APPLIED RESEARCH AND TECHNOLOGY
卷 12, 期 -, 页码 80-86出版社
UNIV NACIONAL AUTONOMA MEXICO
DOI: 10.1016/S1665-6423(14)71608-6
关键词
calibration; extrinsic parameters; intrinsic parameters
类别
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In this paper we proposed a method for geometric calibration of a projector. This method makes use of a calibrated camera to calibrate the projector. Since the projector works inversely with a camera i.e., it projects the image instead of capturing it, so it can be considered as a reverse camera. The projector is calibrated with the help of a calibrated camera using two types of chessboard, a printed chessboard and a projected chessboard by the projector. The object points of the projected chessboard pattern are measured with the help of calibrated camera and the image points are directly acquired from the chessboard pattern to be projected. Then using these object points and image points the projector is calibrated. Once the projector calibration is done, the transformation matrices (from projector to screen, from camera to screen and from camera to projector) are determined which are used for the reconstruction of the 3D geometry.
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