Journal
MACHINE VISION AND APPLICATIONS
Volume 23, Issue 4, Pages 761-772Publisher
SPRINGER
DOI: 10.1007/s00138-010-0308-6
Keywords
3D scanning; Specular objects; Transparent objects; Multi-wavelength illumination; Reconstruction
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Funding
- Renata
- Colciencias in Colombia
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Digitizing specular and transparent objects pose significant problems using traditional 3-D scanning techniques due to the reflection and refraction that interfere with the optical scanning process used for triangulation. In this paper, we present how one can digitize those difficult objects by modifying a commercial 3-D acquisition system with an interchangeable ultraviolet and infrared light source. Experimental results show that the proposed technique can generate accurate 3-D models of these optically challenging objects without major modifications to the 3-D scanner. The results were obtained without preprocessing or multi-view manipulations. The precision of the 3-D measurements is evaluated relative to the visible spectrum acquisition obtained by painting the test objects with matte paint to suppress optical difficulties. Results shows that wavelength changes in the 3-D acquisition system do not change the scanner precision but solve many of the issues that specular and transparent objects poses.
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