Design of studies to test the effectiveness of stereo imaging truth or dare: is stereo viewing really better?

J. Hsu; Zygmunt Pizlo; C. F. Babbs; David M. Chelberg; Edward J. Delp III

doi:10.1117/12.173878

15 April 1994 Design of studies to test the effectiveness of stereo imaging truth or dare: is stereo viewing really better?

J. Hsu, Zygmunt Pizlo, C. F. Babbs, David M. Chelberg, Edward J. Delp III

Author Affiliations +

Proceedings Volume 2177, Stereoscopic Displays and Virtual Reality Systems; (1994) https://doi.org/10.1117/12.173878
Event: IS&T/SPIE 1994 International Symposium on Electronic Imaging: Science and Technology, 1994, San Jose, CA, United States

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.

Citation Download Citation

J. Hsu, Zygmunt Pizlo, C. F. Babbs, David M. Chelberg, and Edward J. Delp III "Design of studies to test the effectiveness of stereo imaging truth or dare: is stereo viewing really better?", Proc. SPIE 2177, Stereoscopic Displays and Virtual Reality Systems, (15 April 1994); https://doi.org/10.1117/12.173878

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