Paper
20 September 2002 A study on 3D measurement for the composition of the human bust by using digital projection moire
Young-June Kang, Weon-Jae Ryu, Sung-Hoon Baik, Hyung-Min Rho
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Abstract
Moire topography method is a well-known non-contacting 3-D measurement method. Recently, the automatic 3-D measurement by moire topography has been required since the method was frequently applied to the engineering and medical fields. 3-D measurement using projection moire topography is very attractive because of its high measuring speed and high sensitivity. In this paper, using two-wavelength methods of projection moire topography was tested to a measuring object with 2π-ambiguity problems. Experimental results prove that the proposed scheme is capable of finding absolute fringe orders, so that the 2π-ambiguity problems can be effectively overcome so as to treat large step discontinuities in measured objects.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Young-June Kang, Weon-Jae Ryu, Sung-Hoon Baik, and Hyung-Min Rho "A study on 3D measurement for the composition of the human bust by using digital projection moire", Proc. SPIE 4919, Advanced Materials and Devices for Sensing and Imaging, (20 September 2002); https://doi.org/10.1117/12.465751
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KEYWORDS
3D metrology

Moire patterns

Phase shifts

Projection systems

CCD cameras

Phase measurement

3D image processing

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