Cover: An Experimental Investigation of the Effect of Target Motion on Visual  Detection

An Experimental Investigation of the Effect of Target Motion on Visual Detection

Published 1971

by Doris J. Dugas, H. E. Petersen

Download

Download eBook for Free

FormatFile SizeNotes
PDF file 2 MB

Use Adobe Acrobat Reader version 10 or higher for the best experience.

Purchase

Purchase Print Copy

 Format Price
Add to Cart Paperback44 pages $20.00

Reports an experiment comparing the detection probabilities for moving targets against complex backgrounds; compares the results to the Bailey model for detection of static targets in random search (see RM-6158/1); and extends that model to cover moving targets by modifying Bailey's glimpse-aperture factor to reflect the fact that a moving target is 2 to 8 times as easily found as a static one. For an aerial-photograph background, the improvement was about 4 times. In the experiment, seven subjects viewed a television display of an artificial, electronically generated target at two speeds against an aerial photo of wooded terrain, against felt, and against a grid. Results suggest — but do not prove — that it is not the motion itself that improves detection performance, but the contrast changes that occur as the target moves over a complex background.

This report is part of the RAND report series. The report was a product of RAND from 1948 to 1993 that represented the principal publication documenting and transmitting RAND's major research findings and final research.

This document and trademark(s) contained herein are protected by law. This representation of RAND intellectual property is provided for noncommercial use only. Unauthorized posting of this publication online is prohibited; linking directly to this product page is encouraged. Permission is required from RAND to reproduce, or reuse in another form, any of its research documents for commercial purposes. For information on reprint and reuse permissions, please visit www.rand.org/pubs/permissions.

RAND is a nonprofit institution that helps improve policy and decisionmaking through research and analysis. RAND's publications do not necessarily reflect the opinions of its research clients and sponsors.