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Proceedings Paper

Design of studies to test the effectiveness of stereo imaging truth or dare: is stereo viewing really better?
Author(s): J. Hsu; Zygmunt Pizlo; C. F. Babbs; David M. Chelberg; Edward J. Delp III
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Paper Abstract

To determine the effectiveness of stereo imaging in aiding the detection of objects in a scene, we are conducting experiments in which subjects are shown computer-generated stereo and mono images and are asked to determine if there is an object with particular characteristics in the image. The experimental data are analyzed using receiver operating characteristic (ROC) approaches to determine which types of objects may be easier to detect using stereo viewing. In this paper, issues that rise in the design of ROC studies to determine the statistical effectiveness of stereo imagery are discussed. These include traps and pitfalls such as varying viewing conditions, image intensity differences, ghosting, flicker, the speed/accuracy tradeoff, subjects' stereo acuity, and degree of difficulty in the discrimination task. Our experimental results show that when these problems are properly addressed, stereo viewing increases the sensitivity and specificity of observer performance in detecting subtle features in simulated x- ray transmission images.

Paper Details

Date Published: 15 April 1994
PDF: 12 pages
Proc. SPIE 2177, Stereoscopic Displays and Virtual Reality Systems, (15 April 1994); doi: 10.1117/12.173878
Show Author Affiliations
J. Hsu, Purdue Univ. (United States)
Zygmunt Pizlo, Purdue Univ. (United States)
C. F. Babbs, Purdue Univ. (United States)
David M. Chelberg, Purdue Univ. (United States)
Edward J. Delp III, Purdue Univ. (United States)

Published in SPIE Proceedings Vol. 2177:
Stereoscopic Displays and Virtual Reality Systems
Scott S. Fisher; John O. Merritt; Mark T. Bolas, Editor(s)

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