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Appl Opt. 1988 Aug 15;27(16):3461-3. doi: 10.1364/AO.27.003461.

Amplitude-compensated matched filtering.

Abstract

A method of amplitude-compensated matched filtering is presented. This yields much better discrimination and a sharper autocorrelation peak compared with the classical matched spatial filter and the phase-only one. By computer simulation in the case of alphanumeric characters, it is concluded that, although the phase information is significantly more important, in the case of a matched filter, the amplitude is important too. Three-dimensional graphs of autocorrelation and cross-correlation are also provided.

PMID:
20539399
[PubMed]
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