Absolute radiometric calibration of digital imaging systems

Steven W. Brown; Thomas C. Larason; Catherine Habauzit; George P. Eppeldauer; Yoshihiro Ohno; Keith R. Lykke

doi:10.1117/12.426952

15 May 2001 Absolute radiometric calibration of digital imaging systems

Steven W. Brown, Thomas C. Larason, Catherine Habauzit, George P. Eppeldauer, Yoshihiro Ohno, Keith R. Lykke

Proceedings Volume 4306, Sensors and Camera Systems for Scientific, Industrial, and Digital Photography Applications II; (2001) https://doi.org/10.1117/12.426952
Event: Photonics West 2001 - Electronic Imaging, 2001, San Jose, CA, United States

Abstract

We have developed a tunable laser-based facility for the absolute radiometric calibration of digital imaging system such as CCD cameras, spectrographs, and microscopes. Several types of silicon-based digital imaging systems have been calibrated in this new facility, including a commercially available camera equipped with a removable photopic filter, a custom-designed digital microscope, and a CCD spectrography. We present result of the CCD camera calibration in detail and discuss relevant aspects of the microscope and spectrograph calibrations. During the radiometric calibration, the pixel-to-pixel uniformity, linearity, and absolute spectral responsivity of each system were determined over the visible spectral range. Each of these aspects of the CCD camera calibration will be presented, along with a discussion of the measurement uncertainties.

Citation Download Citation

Steven W. Brown, Thomas C. Larason, Catherine Habauzit, George P. Eppeldauer, Yoshihiro Ohno, and Keith R. Lykke "Absolute radiometric calibration of digital imaging systems", Proc. SPIE 4306, Sensors and Camera Systems for Scientific, Industrial, and Digital Photography Applications II, (15 May 2001); https://doi.org/10.1117/12.426952

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