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17 June 2003 Visual display characterization using flicker photometry techniques
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Proceedings Volume 5007, Human Vision and Electronic Imaging VIII; (2003)
Event: Electronic Imaging 2003, 2003, Santa Clara, CA, United States
A complete colorimetric characterization of a cathode ray tube (CRT) display was generated using an all-visual psychophysical measurement procedure. This process requires no external props or matching stimuli and uses a three-stage approach for estimating the display’s (1) system nonlinearities (i.e., gamma), (2) channel luminance ratios (i.e., white-point setting), and (3) phosphor chromaticity matrix. Simple homochromatic brightness matching experiments are used to solve the system nonlinearities using either spatially or temporally modulated stimuli. A novel heterochromatic minimum-flicker technique is presented for estimating the relative luminance contributions of each display channel. Finally, a chromaticity selection process is used to choose an appropriate chromaticity set for the display. These components are used to populate a model of the colorimetric mixing characteristics of the display device. The visually populated display model was compared to an instrumentation-based process. The results of this analysis showed that the all-visual characterization process compared favorably to the instrumentation-based model. For 12 subjects, the mean colorimetric errors (averaged across subjects) for a typical color-management task were approximately 2 CIE ΔE94 units with maximum colorimetric errors (averaged across subjects) of approximately 4 CIE ΔE94 units.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Gustav J. Braun "Visual display characterization using flicker photometry techniques", Proc. SPIE 5007, Human Vision and Electronic Imaging VIII, (17 June 2003);


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