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Volume: 4 | Article ID: art00102
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Spectral Characterisation of a Digital Still Camera Through a Single Integrating Exposure
D S Hawkins
P Green
  DOI :  10.2352/CGIV.2008.4.1.art00102  Published Online :  January 2008
Abstract

In order to perform spectral characterization of a digital still camera it is necessary to know the spectral sensitivities of the camera. Methods for determining these sensitivities are generally time consuming and require costly equipment.This paper describes the basic constructional elements, subsequent calibration and practical use of the device incorporating a trans-illuminated filter array.The device consists of an array of 36 narrow band dichroic filters in 10nm intervals from 380nm to 730nm, each being illuminated by an individual light emitting diode and the output attenuated by a potentiometer.The performance of the prototype filter array was evaluated against a polynomial regression technique using a 24 patch GretagMacbeth ColorChecker and was found to produce comparable results.

Journal Title : Conference on Colour in Graphics, Imaging, and Vision
Publisher Name : Society of Imaging Science and Technology
Publisher Location : 7003 Kilworth Lane, Springfield, VA 22151, USA
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 DOI 10.2352/CGIV.2008.4.1.art00102
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D S Hawkins, P Green, "Spectral Characterisation of a Digital Still Camera Through a Single Integrating Exposure"  in Proc. IS&T CGIV 2008/MCS'08 4th European Conf. on Colour in Graphics, Imaging, and Vision 10th Int'l Symp. on Multispectral Colour Science,  2008,  pp 477 - 480,  https://doi.org/10.2352/CGIV.2008.4.1.art00102

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Copyright © Society for Imaging Science and Technology 2008
72010351
Conference on Colour in Graphics, Imaging, and Vision
conf colour graph imag vis
2158-6330
Society of Imaging Science and Technology
7003 Kilworth Lane, Springfield, VA 22151, USA
2158-6330(20080101)2008:1L.477;1-
cgiv_v2008n1/splitsection102.xml
/ist/cgiv/2008/00002008/00000001/art00102
Articles
Spectral Characterisation of a Digital Still Camera Through a Single Integrating Exposure
HawkinsD S
GreenP
01012008
2008
1
477
480
2008
In order to perform spectral characterization of a digital still camera it is necessary to know the spectral sensitivities of the camera. Methods for determining these sensitivities are generally time consuming and require costly equipment.This paper describes the basic constructional elements, subsequent calibration and practical use of the device incorporating a trans-illuminated filter array.The device consists of an array of 36 narrow band dichroic filters in 10nm intervals from 380nm to 730nm, each being illuminated by an individual light emitting diode and the output attenuated by a potentiometer.The performance of the prototype filter array was evaluated against a polynomial regression technique using a 24 patch GretagMacbeth ColorChecker and was found to produce comparable results.