Novel method for structured light system calibration

被引:754
作者
Zhang, Song [1 ]
Huang, Peisen S.
机构
[1] Harvard Univ, Dept Math, Cambridge, MA 02138 USA
[2] SUNY Stony Brook, Dept Mech Engn, Stony Brook, NY 11794 USA
基金
美国国家科学基金会; 美国国家卫生研究院;
关键词
3-D shape measurement; calibration; structured light system; projector image; phase shifting;
D O I
10.1117/1.2336196
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
System calibration, which usually involves complicated and time-consuming procedures, is crucial for any 3-D shape measurement system. In this work, a novel systematic method is proposed for accurate and quick calibration of a 3-D shape measurement system we developed based on a structured light technique. The key concept is to enable the projector to "capture" images like a camera, thus making the calibration of a projector the same as that of a camera. With this new concept, the calibration of structured light systems becomes essentially the same as the calibration of traditional stereovision systems, which is well established. The calibration method is fast, robust, and accurate. It significantly simplifies the calibration and recalibration procedures of structured light systems. This work describes the principle of the proposed method and presents some experimental results that demonstrate its performance. (c) 2006 Society of Photo-Optical Instrumentation Engineers.
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页数:8
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