Methods for measuring display defects as correlated to human perception

H. Kostal; G. Pedeville; R. Rykowski

doi:10.1117/12.805450

19 January 2009 Methods for measuring display defects as correlated to human perception

H. Kostal, G. Pedeville, R. Rykowski

Proceedings Volume 7242, Image Quality and System Performance VI; 72420G (2009) https://doi.org/10.1117/12.805450
Event: IS&T/SPIE Electronic Imaging, 2009, San Jose, California, United States

Abstract

Human vision and perception are the ultimate determinants of display quality, however human judgment is variable, making it difficult to define and apply quantitatively in research or production environments. However, traditional methods for automated defect detection do not relate directly to human perception - which is especially an issue in identifying just noticeable differences. Accurately correlating human perceptions of defects with the information that can be gathered using imaging colorimeters offers an opportunity for objective and repeatable detection and quantification of such defects. By applying algorithms for just noticeable differences (JND) image analysis, a means of automated, repeatable, display analysis directly correlated with human perception can be realized. The implementation of this technique and typical results are presented. Initial application of the JND analysis provides quantitative information that allows a quantitative grading of display image quality for FPDs and projection displays, supplementing other defect detection techniques.

Citation Download Citation

H. Kostal, G. Pedeville, and R. Rykowski "Methods for measuring display defects as correlated to human perception", Proc. SPIE 7242, Image Quality and System Performance VI, 72420G (19 January 2009); https://doi.org/10.1117/12.805450

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