Journal of Information Display

  • 제13권1호
  • /
  • Pages.7-16
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  • 2012
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  • 1598-0316(pISSN)
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  • 2158-1606(eISSN)
한국정보디스플레이학회 (The Korean Infomation Display Society)
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Color accuracy of imaging using color filters

  • 발행 : 2012.03.30
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초록

In this paper, the problem concerning the color accuracy of imaging systems using color filters is examined. It is shown that the only solution to the problem is to build systems with the spectral response matching the CIE curves as closely as possible. If the spectral response does not closely match the CIE curves, it was demonstrated that calibration cannot solve the problem and will result in very unstable colorimeters. A practical solution that uses telecentric lenses on the sensor side in addition to dedicated color filters for each CCD detector is presented. For systems that closely match the CIE curves, an innovative method of improving the color accuracy based on the precise measurement of the spectral response is presented. The small discrepancies in the spectral response with regard to the CIE curves are corrected in different ways during the measurements. Finally, it is shown that the tristimulus calibration that is used for display measurement is very unstable for systems without CIE matching and is much more stable with systems that closely match the CIE curves.

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참고문헌

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피인용 문헌

  1. Development of a technology for eliminating color rendering imperfections in digital photographic images vol.97, pp.1, 2012, https://doi.org/10.15587/1729-4061.2019.154512
  2. 17.3: Error Analysis of Color Coordinates' Measurement Using Color Camera vol.52, pp.1, 2012, https://doi.org/10.1002/sdtp.14397