Projector calibration with error surface compensation method in the structured light three-dimensional measurement system

被引：21

作者：

Huang, Junhui ^{[1
]}

Wang, Zhao ^{[1
]}

Gao, Jianmin ^{[2
]}

Xue, Qi ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Mech Engn, Xian 710049, Shaanxi, Peoples R China

[2] Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Xian 710049, Peoples R China

来源：

OPTICAL ENGINEERING | 2013年 / 52卷 / 04期

基金：

中国国家自然科学基金;

关键词：

shape measurement; calibration; projective transformation; error surface compensation; CAMERA CALIBRATION; DISTORTION MODELS; RATIONAL-FUNCTION; PROFILOMETRY;

D O I：

10.1117/1.OE.52.4.043602

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In the structured light three-dimensional measurement system, calibration is the key to the measurement accuracy; however, conventional calibration methods for the projector are either too complex or inaccurate. Therefore, we propose a simple and accurate method to calibrate the projector. In this method, the calibration points in the camera image plane can be mapped to the projector according the homography of the planar projection. In addition, an error surface compensation method is developed to minimize mapping errors caused by lens distortion of the camera and projector. As a result, the projector can be calibrated with the same method as the camera. Experiments are conducted to verify the effectiveness of the proposed method. (C) 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)

引用

页数：10

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