Comparison of Side-by-Side and Apparent-Motion Displays for Target Change Detection. Addendum
Abstract
This study was concerned with two display methods for the presentation of comparative-cover imagery for target change detection. The conventional side-by-side display, in which the two samples of imagery are simultaneously displayed in juxtaposition, was compared with a display system based on the application of the perceptual phenomenon known as 'apparent motion'. Apparent motion refers to the subjective appearance of motion experienced when certain types of pictorial stimuli alternately time share the same spatial location at specific temporal rates. In the present application, two aerial photographs of a given ground area, acquired at two different times, were aligned in an optical system so that they were alternately exposed to view. With imagery so displayed, unchanged areas appear static whereas changed areas appear to be in motion. The present experiment was designed to explore change- detection performance with comparative-cover imagery displayed in side-by-side and apparent-motion modes, as controlled variations in scale differences and orientational misalignment were introduced in the imagery.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1968
- Accession Number
- ADA079340
Entities
People
- B. K. Gonzalez
- C. L. Elworth
- C. L. Klingberg
Organizations
- United States Army Research Laboratory