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dc.contributor.authorGodbaz, John Peter
dc.contributor.authorCree, Michael J.
dc.contributor.authorDorrington, Adrian A.
dc.coverage.spatialConference held at Lincoln University, Christchurch, New Zealanden_NZ
dc.date.accessioned2010-04-27T02:30:00Z
dc.date.available2010-04-27T02:30:00Z
dc.date.issued2008
dc.identifier.citationGodbax, J. P., Cree, M. J. & Dorrington, A. A. (2008). Mixed pixel return separation for a full-field ranger. In Proceedings of Image and Vision Computing New Zealand, 2008, IVCNZ 2008, 26-28 November, 2008. (pp 1-6). Washington, USA: IEEE.en
dc.identifier.urihttps://hdl.handle.net/10289/3828
dc.description.abstractFull-field amplitude modulated continuous wave range imagers commonly suffer from the mixed pixel problem. This problem is caused by the integration of light from multiple sources by a single pixel, particularly around the edges of objects, resulting in erroneous range measurements. In this paper we present a method for identifying the intensity and range of multiple return values within each pixel, using the harmonic content of the heterodyne beat waveform. Systems capable of measurements at less than 90 degree phase shifts can apply these methods. Our paper builds on previous simulation based work and uses real range data. The method involves the application of the Levy-Fullagar algorithm and the use of the cyclic nature of the beat waveform to extract the mean noise power. We show that this method enables the separation of multiple range sources and also decreases overall ranging error by 30% in the single return case. Error in the two return case was found to increase substantially as relative intensity of the return decreased.en
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.rights©2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en
dc.sourceImage and Vision Computing New Zealand 23rd International Conferenceen_NZ
dc.subjectlidaren
dc.subjectAMCWen
dc.subjectmultiple returnsen
dc.subjectmixed pixelsen
dc.subjectlimited depth of fielden
dc.subjectSparse Spike Train deconvolutionen
dc.titleMixed pixel return separation for a full-field rangeren
dc.typeConference Contributionen
dc.identifier.doi10.1109/IVCNZ.2008.4762135en
dc.relation.isPartOf2008 23rd International Conference Image and Vision Computing New Zealand, IVCNZen_NZ
pubs.elements-id18467
pubs.finish-date2008-11-28en_NZ
pubs.start-date2008-11-26en_NZ


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