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Synthetic Discriminant Function Filter Employing Non-linear Space-Domain Preprocessing on Bandpass-Filtered Images

journal contribution
posted on 2023-06-08, 06:18 authored by Lamia S Jamal-Aldin, Rupert YoungRupert Young, Chris ChatwinChris Chatwin
Previously [Appl. Opt. 36, p. 9212 (1997)] we examined the performance of the linear and nonlinear preprocessed difference-of-Gaussians filter, and it was shown that this operation results in greater tolerance to in-class variations while maintaining excellent discrimination ability. The introduction of nonlinearity was shown to provide greater robustness to the filter's response to noise and background clutter in the input scene. We incorporate this new operation into the synthesis of a modified synthetic discriminant function filter. The filter is shown to produce sharp peaks, excellent discrimination without the need to include out-of-class objects, and good invariance to out-of-plane rotation over a distortion range of up to 90 degrees . Additionally, the introduction of nonlinearity is shown to provide greater robustness of the filter response to background clutter in the input scene.

History

Publication status

  • Published

Journal

Applied Optics

ISSN

1559-128X

Publisher

Applied Optics

Issue

11

Volume

37

Page range

2051-2062

ISBN

0003-6935

Department affiliated with

  • Engineering and Design Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

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