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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 8, Iss. 2 — Feb. 1, 2010
  • pp: 155–158

Theoretical model for the performance of a multi-spectral imaging sensor

Xiaorui Wang, Honggang Bai, and Jianqi Zhang  »View Author Affiliations


Chinese Optics Letters, Vol. 8, Issue 2, pp. 155-158 (2010)


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Abstract

A new performance metric, the two-dimensional (2D) contrast threshold surface, is proposed to characterize the systematic performance of a multi-spectral imaging sensor. Specifically, how to measure this performance metric is presented based on the discriminations of a set of sine-wave test patterns with different radiance magnitudes and spectral properties. The theoretical model for predicting the 2D contrast threshold surface is derived based on an analytical description of the effective contrast between the test pattern and its background, in which the impacts of fusion algorithms on the 2D contrast threshold surface are also discussed using the minimum threshold match criteria. Preliminary simulation results show that this model can be used to quantitatively characterize the real influence of the spectral dierences and spatial frequencies on the contrast thresholds required for the observer to just resolve the images of the test patterns through a multi-spectral imaging sensor.

© 2010 Chinese Optics Letters

OCIS Codes
(110.0110) Imaging systems : Imaging systems
(110.3000) Imaging systems : Image quality assessment
(110.4234) Imaging systems : Multispectral and hyperspectral imaging

Citation
Xiaorui Wang, Honggang Bai, and Jianqi Zhang, "Theoretical model for the performance of a multi-spectral imaging sensor," Chin. Opt. Lett. 8, 155-158 (2010)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-8-2-155


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