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Proceedings Paper

Absolute radiometric calibration of digital imaging systems
Author(s): Steven W. Brown; Thomas C. Larason; Catherine Habauzit; George P. Eppeldauer; Yoshihiro Ohno; Keith R. Lykke
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Paper 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.

Paper Details

Date Published: 15 May 2001
PDF: 9 pages
Proc. SPIE 4306, Sensors and Camera Systems for Scientific, Industrial, and Digital Photography Applications II, (15 May 2001); doi: 10.1117/12.426952
Show Author Affiliations
Steven W. Brown, National Institute of Standards and Technology (United States)
Thomas C. Larason, National Institute of Standards and Technology (United States)
Catherine Habauzit, National Institute of Standards and Technology (United States)
George P. Eppeldauer, National Institute of Standards and Technology (United States)
Yoshihiro Ohno, National Institute of Standards and Technology (United States)
Keith R. Lykke, National Institute of Standards and Technology (United States)


Published in SPIE Proceedings Vol. 4306:
Sensors and Camera Systems for Scientific, Industrial, and Digital Photography Applications II
Nitin Sampat; Morley M. Blouke; John Canosa; John Canosa; Nitin Sampat, Editor(s)

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