DocumentCode :
29326
Title :
A Structured Light Approach for 3-D Surface Reconstruction With a Stereo Line-Scan System
Author :
Lilienblum, Erik ; Al-Hamadi, Ayoub
Author_Institution :
Inst. for Inf. Technol. & Commun., Otto von Guericke Univ. Magdeburg, Magdeburg, Germany
Volume :
64
Issue :
5
fYear :
2015
fDate :
May-15
Firstpage :
1266
Lastpage :
1274
Abstract :
In this paper, we present a novel technique for optical 3-D surface reconstruction by using line-scan cameras and structured light in combination. The approach generating structured light is customized to the special demands of line-scan image capturing. Owing to the distributed generation of light and the absence of shading elements, we obtain a light intensity that is comparable with conventional line lights. Thus, we achieve short integration times which is a necessary condition in most line-scan applications. Furthermore, with our approach we can generate different pattern sequences, which allows us to implement coded light methods such as time correlation or phase shifting. The light patterns can be switched synchronously with the captured lines of the camera. Thus, we are able to measure continuously whereby a single surface scan is sufficient to calculate a high-quality 3-D reconstruction.
Keywords :
cameras; image reconstruction; stereo image processing; surface reconstruction; line-scan cameras; optical 3D surface reconstruction; stereo line-scan system; structured light approach; Cameras; Correlation; Image reconstruction; Lenses; Lighting; Surface reconstruction; Switches; 3-D surface reconstruction; coded structured light; line-scan cameras; optical 3-D measurement; pattern projection; phase-shifting; photogrammetry; time correlation; time correlation.;
fLanguage :
English
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9456
Type :
jour
DOI :
10.1109/TIM.2014.2364105
Filename :
7015605
Link To Document :
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