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Proceedings Paper

Class of algorithms for real-time subpixel registration
Author(s): Robert W. Frischholz; Klaus P. Spinnler
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Paper Abstract

In 1972, Barnea and Silverman presented a new approach to the wide field of template matching, the SSD-algorithm. Further work has been done to adapt the method to gain subpixel accuracy. Intense investigation of the proposed algorithms led to our new approach: by interpolating the template instead of the reference image, and by applying sort of an error- correction to the resulting subpixel-value, both computation time and accuracy can be improved. Exhaustive experiments with a CCD-camera and various kinds of reference images showed that a maximum error of 10% of the pixel period can be expected. Depending on the kind of image, mean square errors range from 0.4% to 4%.

Paper Details

Date Published: 17 December 1993
PDF: 10 pages
Proc. SPIE 1989, Computer Vision for Industry, (17 December 1993); doi: 10.1117/12.164889
Show Author Affiliations
Robert W. Frischholz, Fraunhofer Institute for Integrated Circuits (Germany)
Klaus P. Spinnler, Fraunhofer Institute for Integrated Circuits (Germany)

Published in SPIE Proceedings Vol. 1989:
Computer Vision for Industry
Donald W. Braggins, Editor(s)

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