Accurate calibration for a camera-projector measurement system based on structured light projection

被引：116

作者：

Chen, Xiaobo ^{[1
]}

Xi, Juntong ^{[1
,2
]}

Jin, Ye ^{[1
]}

Sun, Jin ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mech Engn, Shanghai 200030, Peoples R China

[2] Shanghai Jiao Tong Univ, State Key Lab Mech Syst & Vibrat, Shanghai 200030, Peoples R China

来源：

OPTICS AND LASERS IN ENGINEERING | 2009年 / 47卷 / 3-4期

基金：

中国国家自然科学基金;

关键词：

System calibration; Camera-projector measurement system; Structured light; Three-dimensional shape measurement;

D O I：

10.1016/j.optlaseng.2007.12.001

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The accurate calibration for a camera-projector measurement system based on structured fight projection is important to the system measurement accuracy. This study proposes an improved systematic calibration method focusing on three key factors: calibration model, calibration artifact and calibration procedures. The calibration model better describes the camera and projector imaging process by considering higher to fourth order radial and tangential lens distortion. The calibration artifact provides a sufficient number of accurate 3D reference points uniformly distributed in a common world coordinate system. And the calibration procedures calibrate the camera and projector simultaneously based on the same reference points to eliminate the influences of the camera calibration error on the projector calibration. The experiments demonstrate that our calibration method can improve the measurement accuracy by 47%. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：310 / 319

页数：10

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