Class of algorithms for real-time subpixel registration

Robert W. Frischholz; Klaus P. Spinnler

doi:10.1117/12.164889

17 December 1993 Class of algorithms for real-time subpixel registration

Robert W. Frischholz, Klaus P. Spinnler

Proceedings Volume 1989, Computer Vision for Industry; (1993) https://doi.org/10.1117/12.164889
Event: Electronic Imaging Device Engineering, 1993, Munich, Germany

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%.

Citation Download Citation

Robert W. Frischholz and Klaus P. Spinnler "Class of algorithms for real-time subpixel registration", Proc. SPIE 1989, Computer Vision for Industry, (17 December 1993); https://doi.org/10.1117/12.164889

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