Contrast vision-definitions, conversions, and equivalence tables

Bach, M. and Hoffmann, M. B. and Jaegle, H. and Heinrich, S. P. and Schiefer, U. and Wesemann, W. (2017) Contrast vision-definitions, conversions, and equivalence tables. OPHTHALMOLOGE, 114 (4). pp. 341-347. ISSN 0941-293X, 1433-0423

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Abstract

Human contrast vision and its quantitative assessment are gaining more attention. Publications on this topic can be confusing due to the overabundance of differing definitions and quantification of contrast vision. As a case in point, in Germany, contrast ratios as required for certain driving licenses and the DIN-defined contrast ratio are reciprocal. In this article, the five most important definitions of luminance contrast and contrast vision (Michelson, Weber, contrast ratios, logCS) are presented. We detail the specific domains for them, give formulae to convert between all of them and provide a table with equivalent values. We recommend the unit logCS wherever possible.

Item Type: Article
Uncontrolled Keywords: SENSITIVITY TEST; PERCEPTION; DESIGN; ACUITY; Contrast; Weber contrast; Michaelson contrast; Contrast sensitivity; LogCS
Subjects: 600 Technology > 610 Medical sciences Medicine
Divisions: Medicine > Lehrstuhl für Augenheilkunde
Depositing User: Dr. Gernot Deinzer
Date Deposited: 14 Dec 2018 13:11
Last Modified: 18 Feb 2019 13:52
URI: https://pred.uni-regensburg.de/id/eprint/1128

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