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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 46, Iss. 15 — May. 20, 2007
  • pp: 2838–2850

Non-laser-based scanner for three-dimensional digitization of historical artifacts

Daniel V. Hahn, Kevin C. Baldwin, and Donald D. Duncan  »View Author Affiliations

Applied Optics, Vol. 46, Issue 15, pp. 2838-2850 (2007)

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A 3D scanner, based on incoherent illumination techniques, and associated data-processing algorithms are presented that can be used to scan objects at lateral resolutions ranging from 5 to 100   μm (or more) and depth resolutions of approximately 2   μm . The scanner was designed with the specific intent to scan cuneiform tablets but can be utilized for other applications. Photometric stereo techniques are used to obtain both a surface normal map and a parameterized model of the object's bidirectional reflectance distribution function. The normal map is combined with height information, gathered by structured light techniques, to form a consistent 3D surface. Data from Lambertian and specularly diffuse spherical objects are presented and used to quantify the accuracy of the techniques. Scans of a cuneiform tablet are also presented. All presented data are at a lateral resolution of 26.8   μm as this is approximately the minimum resolution deemed necessary to accurately represent cuneiform.

© 2007 Optical Society of America

OCIS Codes
(100.2000) Image processing : Digital image processing
(100.5070) Image processing : Phase retrieval
(110.6880) Imaging systems : Three-dimensional image acquisition
(120.2830) Instrumentation, measurement, and metrology : Height measurements
(120.6650) Instrumentation, measurement, and metrology : Surface measurements, figure
(150.6910) Machine vision : Three-dimensional sensing

ToC Category:
Image Processing

Original Manuscript: October 3, 2006
Revised Manuscript: January 2, 2007
Manuscript Accepted: January 24, 2007
Published: May 1, 2007

Virtual Issues
Vol. 2, Iss. 6 Virtual Journal for Biomedical Optics

Daniel V. Hahn, Kevin C. Baldwin, and Donald D. Duncan, "Non-laser-based scanner for three-dimensional digitization of historical artifacts," Appl. Opt. 46, 2838-2850 (2007)

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