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Optical Engineering

Invariant template matching with tangent vectors
Author(s): Brendt E. Wohlberg; Kevin Vixie
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Paper Abstract

Template matching is the search for a known object, represented by a template image, at an arbitrary location within a larger image. The local measure of match is often desired to be invariant to certain transforms, such as rotation and dilation, of the template. Although a variety of solutions have been proposed, most are designed to provide invariance to a specific transform or set of transforms, and often involve significant computational demands. When invariance to "small" transformations of the template (e.g., rotation by a small angle) is sufficient, local linear approximations to these transforms may be used to allow template matching with invariance to arbitrary transforms, without significantly increased computational requirements.

Paper Details

Date Published: 1 March 2007
PDF: 10 pages
Opt. Eng. 46(3) 037006 doi: 10.1117/1.2715984
Published in: Optical Engineering Volume 46, Issue 3
Show Author Affiliations
Brendt E. Wohlberg, Los Alamos National Lab. (United States)
Kevin Vixie, Los Alamos National Lab. (United States)

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