Spectral estimation of color CCD cameras

Gao-Wei Chang; Yung-Chang Chen

doi:10.1117/12.311073

18 June 1998 Spectral estimation of color CCD cameras

Gao-Wei Chang, Yung-Chang Chen

Proceedings Volume 3422, Input/Output and Imaging Technologies; (1998) https://doi.org/10.1117/12.311073
Event: Asia Pacific Symposium on Optoelectronics '98, 1998, Taipei, Taiwan

Abstract

The spectral sensitivity of a CCD camera is a prominent electro-optical characteristic for color image formation. In this paper, spectral estimation of color CCD cameras generally involves the assessment of overall spectral sensitivities, which are composed of those of optics, filters, and CCD sensors. To this end, we develop an automatic testing/measurement system with an optical platform. And, the spectral characterization of a CCD camera imaging process is presented in the approach of vector representation for the estimation problem. This technique examines the modulated incident colored lights, which are regarded as a set of color stimuli candidates, to be the effective color stimuli, such that they can be successfully applied to generic estimation algorithms. To show the feasibility of this work, a realization of a basic set of color stimuli candidates is generated in the numerical and graphical forms. In our approach the use of a spectrophotometer is needed only for the system calibration. It would be pleasing that this technique will practically simplify the complexity of the spectral estimation problem of CCD cameras.

Citation Download Citation

Gao-Wei Chang and Yung-Chang Chen "Spectral estimation of color CCD cameras", Proc. SPIE 3422, Input/Output and Imaging Technologies, (18 June 1998); https://doi.org/10.1117/12.311073

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