Fine-correlation: inter-sample template matching

Pieter V. Reyneke; Etienne S. van der Berg; Corné de Ridder

doi:10.1117/12.2066405

23 June 2014 Fine-correlation: inter-sample template matching

Pieter V. Reyneke, Etienne S. van der Berg, Corné de Ridder

Proceedings Volume 9257, Sensors, MEMS and Electro-Optical Systems; 92570E (2014) https://doi.org/10.1117/12.2066405
Event: Third Conference on Sensors, MEMS and Electro-Optic Systems, 2014, Skukuza, Kruger National Park, South Africa

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.

Citation Download Citation

Pieter V. Reyneke, Etienne S. van der Berg, and Corné de Ridder "Fine-correlation: inter-sample template matching", Proc. SPIE 9257, Sensors, MEMS and Electro-Optical Systems, 92570E (23 June 2014); https://doi.org/10.1117/12.2066405

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