Designing flat-bed scanning system for spectral and glossiness recording

Takahiro Takiguchi; Sachiko Abe; Norimichi Tsumura; Toshiya Nakaguchi; Fumio Nakaya; Hirokazu Ichikawa; Yuji Minato; Kimiyoshi Miyata; Yoichi Miyake

doi:10.1117/12.642837

17 January 2006 Designing flat-bed scanning system for spectral and glossiness recording

Takahiro Takiguchi, Sachiko Abe, Norimichi Tsumura, Toshiya Nakaguchi, Fumio Nakaya, Hirokazu Ichikawa, Yuji Minato, Kimiyoshi Miyata, Yoichi Miyake

Author Affiliations +

Proceedings Volume 6062, Spectral Imaging: Eighth International Symposium on Multispectral Color Science; 60620D (2006) https://doi.org/10.1117/12.642837
Event: Electronic Imaging 2006, 2006, San Jose, California, United States

Abstract

In this paper, we propose a flat-bed scanner system to record spectral and glossiness information for various sheets like objects. In the proposed system, five filters are used to acquire the multi-band images of the object. The spectral reflectance image can be estimated and be recorded from the multi-band images. The glossiness of the object is recorded as two images taken by the different geometries about illuminant which is from 45 degrees, and from 0+α degrees respectively when the averaged normal vector of the sheet like object is defined as 0 degree. We performed two types of computer simulation by using the two images to reproduce various appearance of recorded object. As the first simulation, the various appearances of image are reproduced through a weighted linear combination of the two images. As the second simulation, the normal vector distribution of the object is estimated from the image taken by 45 degree illuminant. By using this normal vector distribution, roughness of the object is estimated from the image taken by 0 + α degree illuminant. The normal vector and estimated roughness are used to reproduce the various appearance of the object under arbitrary illuminant.

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Takahiro Takiguchi, Sachiko Abe, Norimichi Tsumura, Toshiya Nakaguchi, Fumio Nakaya, Hirokazu Ichikawa, Yuji Minato, Kimiyoshi Miyata, and Yoichi Miyake "Designing flat-bed scanning system for spectral and glossiness recording", Proc. SPIE 6062, Spectral Imaging: Eighth International Symposium on Multispectral Color Science, 60620D (17 January 2006); https://doi.org/10.1117/12.642837

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KEYWORDS

Reflectivity

Light sources

Optical filters

Scanners

Image analysis

Computer simulations

Diffuse reflectance spectroscopy

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