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Proceedings Paper

Fine-correlation: inter-sample template matching
Author(s): Pieter V. Reyneke; Etienne S. van der Berg; Corné de Ridder
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Paper Abstract

A new resolution refinement method is introduced for template-matching. Fine-correlation uses sample replication to re ne match-accuracy to discrete inter-sample positions. Fine-correlation can be done in both the time and frequency domain. The achievable resolution-re finement is a function of signal-to-noise ratio; signal bandwidth; template-length and template information content. Templates can easily be described to a 10 times or higher time-resolution than the incoming signal. Fine-correlation provides a method of matching in such scenarios. Possible implementations are discussed. The preferred method is chosen. A noise-level- and templatelength analysis is done illustrating achievable resolution improvement. Two implementations of Fine-correlation conclude this paper. An appendix is devoted to the derivation of the resampling DFT and resampling DHT.

Paper Details

Date Published: 23 June 2014
PDF: 17 pages
Proc. SPIE 9257, Sensors, MEMS and Electro-Optical Systems, 92570E (23 June 2014); doi: 10.1117/12.2066405
Show Author Affiliations
Pieter V. Reyneke, Denel Dynamics (South Africa)
Etienne S. van der Berg, Denel Dynamics (South Africa)
Corné de Ridder, Stellenbosch Univ. (South Africa)

Published in SPIE Proceedings Vol. 9257:
Sensors, MEMS and Electro-Optical Systems
Monuko du Plessis, Editor(s)

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