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Proceedings Paper

Analytical approximations of translational subpixel shifts in signal and image registrations
Author(s): Qiang Zhang
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Paper Abstract

Analytical approximations of translational subpixel shifts in both signal and image registrations are derived by setting the derivatives of a normalized cross correlation function to zero and solving them. Without the need of iterative searching, this methods achieves a complexity of only O (mn), given an image size of m × n. Without the need to upsample, computation memory is also saved. Tests using simulated signals and images show good results.

Paper Details

Date Published: 3 September 2008
PDF: 7 pages
Proc. SPIE 7074, Advanced Signal Processing Algorithms, Architectures, and Implementations XVIII, 70740E (3 September 2008); doi: 10.1117/12.798128
Show Author Affiliations
Qiang Zhang, Wake Forest Univ. (United States)


Published in SPIE Proceedings Vol. 7074:
Advanced Signal Processing Algorithms, Architectures, and Implementations XVIII
Franklin T. Luk, Editor(s)

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