Development of a 16-band multispectral image archiving system

Hiroyuki Fukuda; Toshio Uchiyama; Hideaki Haneishi; Masahiro Yamaguchi; Nagaaki Ohyama

doi:10.1117/12.592533

17 January 2005 Development of a 16-band multispectral image archiving system

Hiroyuki Fukuda, Toshio Uchiyama, Hideaki Haneishi, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings Volume 5667, Color Imaging X: Processing, Hardcopy, and Applications; (2005) https://doi.org/10.1117/12.592533
Event: Electronic Imaging 2005, 2005, San Jose, California, United States

Abstract

To preserve museum collections of works of art, these collections are often photographed for display in digital museums. However, conventional photography cannot capture spectral characteristics of objects. In this paper, we describe a 16-band camera system designed to produce spectral images of ancient paintings. Results of color reproduction of captured images and results of spectral analysis of images of ancient paintings are also presented. The camera consists of a 2000×2000-pixel CCD, a rotational filter turret with 16 interference filters, and a PC-based image capturing and displaying unit. The camera's lens is interchangeable, and it enables two or more different view sizes. Each band image of the camera can be focused independently, and it reduces longitudinal chromatic aberration. A stroboscope is used for lighting, and the rotational filter turret and electrical shutter of the CCD have been synchronized with it. An electric motor-driven photographic platform is used to enable photographing large objects in several shots. We evaluated the results of color estimation for an image taken by this camera using the GretagMacbeth ColorChecker 24-color chart. The average ΔE_ab was 2.09 (maximum ΔE_ab was 4.03). Spectral reflectance were used to analyze a degraded area on an ancient painting.

Citation Download Citation

Hiroyuki Fukuda, Toshio Uchiyama, Hideaki Haneishi, Masahiro Yamaguchi, and Nagaaki Ohyama "Development of a 16-band multispectral image archiving system", Proc. SPIE 5667, Color Imaging X: Processing, Hardcopy, and Applications, (17 January 2005); https://doi.org/10.1117/12.592533

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