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Optical Engineering

Digital Image Change Detection
Author(s): Werner Frei; Manbir Singh; Tsutomu Shibata
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Paper Abstract

Multiple views of a scene generally contain informa-tion that is implicit in the differences between the views. Such information can be of great interest when images are taken under different conditions or at different times, as it may provide insight into underlying physical or biological processes. Digital image change detection permits to detect and helps interpret such change information where the human observer otherwise fails. The method described here produces a "change image," which portrays image differences according to a simple convention. In the change image, previously invisible differences clearly stand out, often in meaningful patterns, and they can be further enhanced for easy visual interpretation. Examples are presented of this method applied successfully in widely different fields - remote sensing, radiology, nuclear medicine - illustrating the potential of digital image change detection, and also suggesting further avenues of research.

Paper Details

Date Published: 1 June 1980
PDF: 8 pages
Opt. Eng. 19(3) 193331 doi: 10.1117/12.7972517
Published in: Optical Engineering Volume 19, Issue 3
Show Author Affiliations
Werner Frei, University of Southern California (United States)
Manbir Singh, University of Southern California (United States)
Tsutomu Shibata, University of Southern California (United States)

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