30 June 1993 Presentation of medical images on CRT displays: a renewed proposal for a display function standard
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Abstract
A mathematically defined standard display function is proposed for black-and-white hard and soft-copy image displays based on perceptual linearization. Since perceptual linearization is related to threshold contrast of targets with specific parameters, perceptually linearized display functions are calculated for a variety of target descriptors to illustrate the range of linearization by the proposed standard. Rogers and Carel's formula and the two-dimensional models of visual system sensitivity of Barten and Daly are used to calculate such display functions. The proposed standard provides perceptual linearization for the peak contrast sensitivity near 4 c/deg. The standard is adaptable to black-and-white display systems independent of maximum luminance and luminance range. Perceptual linearization is maintained largely independent of object size, external noise, observer performance variations, low supra-threshold contrast, target orientation, and ambient light. The standard facilitates similarity between the soft and hard-copy of an image independent of luminance. When using the standard function for displaying images, a minimum number of bits for the D/A converter is required that provides uniform digitization resolution over the entire display range. The standard display function, however, is not a visualization standard for images of specific applications.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hartwig R. Blume, Hartwig R. Blume, Scott J. Daly, Scott J. Daly, Edward Muka, Edward Muka, } "Presentation of medical images on CRT displays: a renewed proposal for a display function standard", Proc. SPIE 1897, Medical Imaging 1993: Image Capture, Formatting, and Display, (30 June 1993); doi: 10.1117/12.146970; https://doi.org/10.1117/12.146970
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