Projector-Camera Calibration Using Gray Code Patterns
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Authors
Jordan, Samuel James
Date
2010-06-30T19:16:43Z
Type
thesis
Language
eng
Keyword
projector-camera systems , projector distortion , projector calibration , short-throw projector , non-parametric model , Gray code
Alternative Title
Abstract
A parameter-free solution is presented for data projector calibration using a single camera and Gray coded structured light patterns. The proposed method assumes that both camera and projector exhibit significant non-linear distortion, and that projection surfaces can be either planar or freeform. The camera is calibrated first through traditional methods, and the calibrated images are then used to detect Gray coded patterns displayed on a surface by the data projector. Projector to camera correspondences are created by decoding the patterns in the camera images to form a 2D correspondence map. Calibrated systems produce geometrically correct, ex- tremely short throw projections, while maintaining or exceeding the projection size of a standard configuration. Qualitative experiments are performed on two baseline images, while quantitative data is recovered from the projected image of a chessboard pattern. A typical throw ratio of 0.5 can be achieved with a pixel distance error below 1.
Description
Thesis (Master, Electrical & Computer Engineering) -- Queen's University, 2010-06-29 09:33:50.311
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This publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.