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Optical Engineering

Archiving shape and appearance of cultural heritage objects using structured light projection and multispectral imaging
Author(s): Robert Sitnik; Jakub F. Krzeslowski; Grzegorz Maczkowski
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Paper Abstract

To create faithful reproduction of a cultural heritage object, it is crucial to gather information on intrinsic optical properties of the object's surface, as well as its geometry. An integrated device has been developed that performs a three-dimensional measurement using structured light projection, followed by multispectral imaging for precise color retrieval and directional illumination for estimating bidirectional reflectance distribution function (BRDF) parameters. The main advantage shown in this work is the use of only one detector during the whole acquisition process to assure ideal correspondence of multimodal surface data in the image space. A method is shown for performing the measurement using an integrated device. Methods of data organization and processing are described facilitating robust operation of the developed software. A prototype setup for the integrated system is presented together with measurement parameters and sample measurement.

Paper Details

Date Published: 8 March 2012
PDF: 8 pages
Opt. Eng. 51(2) 021115 doi: 10.1117/1.OE.51.2.021115
Published in: Optical Engineering Volume 51, Issue 2
Show Author Affiliations
Robert Sitnik, Warsaw Univ. of Technology (Poland)
Jakub F. Krzeslowski, Warsaw Univ. of Technology (Poland)
Grzegorz Maczkowski, Warsaw Univ. of Technology (Poland)

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