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Proceedings Paper

Comparative study on sensor spectral sensitivity estimation
Author(s): Shuxue Quan; Noboru Ohta; Xiaoyun Jiang
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Paper Abstract

The spectral characterization of digital imaging devices overcomes the drawbacks of conventional colorimetric characterization by determining the sensor spectral sensitivity functions. Direct measurement of the sensitivities requires expensive instruments and takes long time. A “quick and easy” yet accurate enough estimation of those functions are desired in some circumstances. The estimation is realized by imaging some selected set of reflectance samples. In this paper, some primary available approaches to the sensor sensitivity estimation are reviewed, followed by the description of the proposed iterative multiscale basis functions method. The performance of the new method is compared with some of the available approaches. The implementation of the new method is relatively simple and the results show that it is superior by offering more degrees of freedoms and yielding nonnegative, smooth, and close approximation under either noiseless or noisy condition.

Paper Details

Date Published: 13 January 2003
PDF: 12 pages
Proc. SPIE 5008, Color Imaging VIII: Processing, Hardcopy, and Applications, (13 January 2003); doi: 10.1117/12.472023
Show Author Affiliations
Shuxue Quan, Sony Electronics Inc. (United States)
Noboru Ohta, Rochester Institute of Technology (United States)
Xiaoyun Jiang, Rochester Institute of Technology (United States)

Published in SPIE Proceedings Vol. 5008:
Color Imaging VIII: Processing, Hardcopy, and Applications
Reiner Eschbach; Gabriel G. Marcu, Editor(s)

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