1 October 2003 Pattern recognition by quantization of modulated function to complexes of a quadrupole in matched filtering
Author Affiliations +
Optical Engineering, 42(10), (2003). doi:10.1117/1.1605957
Abstract
An improved matched filtering method for pattern recognition is proposed. In this method, functions modulated by the matched filter are quantized to the complexes of a quadrupole in the frequency domain. It is shown that shaper autocorrelation and much more suppressed cross-correlation signals can be obtained over those achieved by ordinary matched filters. It is also demonstrated that video-rate correlation processing with an 256×256 input image size can be performed on a regular personal computer using the proposed method even when the reference pattern is switched for every input image.
Taketsugu Yao, Takumi Minemoto, "Pattern recognition by quantization of modulated function to complexes of a quadrupole in matched filtering," Optical Engineering 42(10), (1 October 2003). http://dx.doi.org/10.1117/1.1605957
JOURNAL ARTICLE
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KEYWORDS
Image filtering

Phase only filters

Fourier transforms

Modulation

Image processing

Signal to noise ratio

Electronic filtering

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