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dc.contributor.authorKozaitis, S.P.
dc.contributor.authorRoeksabutr, Atikom
dc.date.accessioned2017-10-12T18:59:25Z
dc.date.available2017-10-12T18:59:25Z
dc.date.issued1990-02-05
dc.identifier.citationKozaitis, S. P., & Roeksabutr, A. (1990). Image preprocessing for phase-only filtering. Proceedings of SPIE - the International Society for Optical Engineering, 1151, 154-165.en_US
dc.identifier.urihttp://hdl.handle.net/11141/1897
dc.description.abstractWe compare the performance of an optical binary phase-only correlator using several nonlinear filters for preprocessing. An image of an airfield with different but similar appearing planes is used as the input data. The performance of the correlator was measured by examining several parameters in the correlation plane. Performance criteria are the signal-to-clutter ratio, the signal-to-noise ratio for objects within the same class, and the variance of the correlation peak within a class. Input images to the correlator were preprocessed using nonlinear filters based on both median filtering and adaptive filtering. The preprocessing improved the performance of the correlator by supressing noise while preserving the edges of the input image. The SNR changes with the position of an object due to diffraction from the pixels of a spatial light modulator. © 1990 SPIE.en_US
dc.language.isoen_USen_US
dc.rightsThis published article is made available in accordance with publishers policy. It may be subject to U.S. copyright law.en_US
dc.rights.urihttp://spie.org/publications/journals/guidelines-for-authors#Terms_of_Useen_US
dc.titleImage preprocessing for phase-only filteringen_US
dc.typeArticleen_US
dc.identifier.doi10.1117/12.962215


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