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Quantised phase filters with binary low and high pass amplitude response: the effect of quantization for scale and rotation input distortions

journal contribution
posted on 2023-06-08, 05:55 authored by Triantafillos Koukoulas, Rupert YoungRupert Young, Chris ChatwinChris Chatwin
In the field of optical pattern recognition, there are a large number of filters that possess identification capabilities for certain kinds of input distortions. The resolution of the spectral components plays an important role in the overall processing time of a correlator that may employ such filters. In this paper, two different techniques are discussed: low pass phase filtering and high pass phase filtering. This is achieved by binarizing the amplitude information which then allows certain frequencies to pass and others to be blocked. Their response to different kinds of input distortions is presented and the effect of phase quantisation is considered in detail.

History

Publication status

  • Published

Journal

Optics and Lasers in Engineering

ISSN

0143-8166

Volume

43

Page range

963-976

Department affiliated with

  • Engineering and Design Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

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