Noise robustness of a colorimetric evaluation model for image acquisition devices with different characterization models
Applied Optics, Vol. 48, Issue 28, pp. 5354-5362 (2009)
http://dx.doi.org/10.1364/AO.48.005354
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Abstract
Colorimetric evaluation of an image acquisition device is important for evaluating and optimizing a set of sensors. We have already proposed a colorimetric evaluation model [ J. Imaging Sci. Technol. 49, 588–593 (2005)JIMTE61062-3701] based on the Wiener estimation. The mean square errors (MSE) between the estimated and the actual fundamental vectors by the Wiener filter and the proposed colorimetric quality (Qc) agree quite well with the proposed model and we have shown that the estimation of the system noise variance of the image acquisition system is essential for the evaluation model. In this paper, it is confirmed that the proposed model can be applied to two different reflectance recovery models, and these models provide us an easy method for estimating the proposed colorimetric quality (Qc). The influence of the system noise originates from the sampling intervals of the spectral characteristics of the sensors, the illuminations and the reflectance and the quantization error on the evaluation model are studied and it is confirmed from the experimental results that the proposed model holds even in a noisy condition.
© 2009 Optical Society of America
OCIS Codes
(150.0150) Machine vision : Machine vision
(330.1690) Vision, color, and visual optics : Color
(330.1730) Vision, color, and visual optics : Colorimetry
(330.6180) Vision, color, and visual optics : Spectral discrimination
ToC Category:
Vision, Color, and Visual Optics
History
Original Manuscript: June 8, 2009
Revised Manuscript: August 26, 2009
Manuscript Accepted: September 4, 2009
Published: September 22, 2009
Citation
Mikiya Hironaga and Noriyuki Shimano, "Noise robustness of a colorimetric evaluation model for image acquisition devices with different characterization models," Appl. Opt. 48, 5354-5362 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-28-5354
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