Tracking the aging process by multiple 3D scans analysis

Eryk Bunsch; Robert Sitnik; Jakub Michonski

doi:10.1117/12.908024

20 February 2012 Tracking the aging process by multiple 3D scans analysis

Eryk Bunsch, Robert Sitnik, Jakub Michonski

Proceedings Volume 8291, Human Vision and Electronic Imaging XVII; 82911G (2012) https://doi.org/10.1117/12.908024
Event: IS&T/SPIE Electronic Imaging, 2012, Burlingame, California, United States

Abstract

Currently, a lot of different 3D scanning devices are used for 3D acquisition of art artifact surface shape and color. Each of them has different technical parameters starting from measurement principle (structured light, laser triangulation, interferometry, holography) and ending on parameters like measurement volume size, spatial resolution and precision of output data and color information. Some of the 3D scanners can grab additional information like surface normal vectors, BRDF distribution, multispectral color. In this paper, we plan to present results of the measurements with selected sampling densities together with discussion of the problem of recognition and assessment of the aging process. We focus our interest on features that are important for the art conservators to define state of preservation of the object as well as to assess changes on the surface from last and previous measurement. Also different materials and finishing techniques requires different algorithms for detection and localization of aging changes. In this paper we consider exemplary stone samples to visualize what object features can be detected and tracked during aging process. The changes in sandstone surface shape, affected by salt weathering, will be presented as well as possibilities of identification of surface degradation on real object (garden relief made in sandstone).

Citation Download Citation

Eryk Bunsch, Robert Sitnik, and Jakub Michonski "Tracking the aging process by multiple 3D scans analysis", Proc. SPIE 8291, Human Vision and Electronic Imaging XVII, 82911G (20 February 2012); https://doi.org/10.1117/12.908024

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