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Proceedings Paper

In-field evaluation of the modulation transfer function of electronic display devices
Author(s): Hans Roehrig; Jerry Gaskill; Jiahua Fan; Ananth Poolla; Chadwick Martin
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Paper Abstract

This paper describes a CCD camera, which was developed for in-field evaluation of the image quality of electronic display devices like CRTs and LCDs. Contrary to traditional CCD cameras used for image quality evaluation, this camera does not require a sophisticated x-y-z translation stage for mounting and adjustment. Instead it is handheld and pressed by gentle pressure against the display. It is controlled by a software package which was originally developed for the display calibration according to the DICOM 14 GSDF (Grayscale Standard Display Function). This software package controls the camera gain when measurements are made at different display luminance, displays test patterns, performs image analysis and displays the result of the measurements and calculations. Initial work concentrated on the measurement of the MTF of a CRT derived from the line spread function. The obtained MTF deviates only minimally from those obtained with a high performance CCD camera on the same CRT.

Paper Details

Date Published: 5 May 2004
PDF: 8 pages
Proc. SPIE 5367, Medical Imaging 2004: Visualization, Image-Guided Procedures, and Display, (5 May 2004); doi: 10.1117/12.536250
Show Author Affiliations
Hans Roehrig, Univ. of Arizona (United States)
Jerry Gaskill, Image Smith's, Inc. (United States)
Jiahua Fan, Univ. of Arizona (United States)
Ananth Poolla, Univ. of Arizona (United States)
Chadwick Martin, Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 5367:
Medical Imaging 2004: Visualization, Image-Guided Procedures, and Display
Robert L. Galloway, Editor(s)

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