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dc.contributor.authorGodbaz, John Peter
dc.contributor.authorCree, Michael J.
dc.contributor.authorDorrington, Adrian A.
dc.coverage.spatialConference held at Wellington, New Zealanden_NZ
dc.date.accessioned2010-05-11T22:01:26Z
dc.date.available2010-05-11T22:01:26Z
dc.date.issued2009
dc.identifier.citationGodbaz, J.P., Cree, M.J. & Dorrington, A.A. (2009). Undue influence: Mitigating range-intensity coupling in AMCW ‘flash’ lidar using scene texture. In proceedings of 24th International Conference Image and Vision Computing New Zealand (IVCNZ 2009), 23-25 November 2009, Wellington, New Zealand. (pp. 304-309). Washington, USA: IEEE.en
dc.identifier.urihttps://hdl.handle.net/10289/3874
dc.description.abstractWe present a new algorithm for mitigating range-intensity coupling caused by scattered light in full-field amplitude modulated continuous wave lidar systems using scene texture. Full-field Lidar works using the time-of-flight principle to measure the range to thousands of points in a scene simultaneously. Mixed pixel are erroneous range measurements caused by pixels integrating light from more than one object at a time. Conventional optics suffer from internal reflections and light scattering which can result in every pixel being mixed with scattered light. This causes erroneous range measurements and range-intensity coupling. By measuring how range changes with intensity over local regions it is possible to determine the phase and intensity of the scattered light without the complex calibration inherent in deconvolution based restoration. The new method is shown to produce a substantial improvement in range image quality. An additional range from texture method is demonstrated which is resistant to scattered light. Variations of the algorithms are tested with and without segmentation - the variant without segmentation is faster, but causes erroneous ranges around the edges of objects which are not present in the segmented algorithm.en
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherIEEEen_NZ
dc.rights© 2009 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.source24th International Conference Image and Vision Computing New Zealanden_NZ
dc.subjectAMCW flass lidaren
dc.subjectscene textureen
dc.subjectrange-intensity coupling mitigationen
dc.titleUndue influence: Mitigating range-intensity coupling in AMCW ‘flash’ lidar using scene textureen
dc.typeConference Contributionen
dc.identifier.doi10.1109/IVCNZ.2009.5378390en
dc.relation.isPartOfProceedings of the 24th International Conference: Image and Vision Computing New Zealanden_NZ
pubs.begin-page304en_NZ
pubs.elements-id19338
pubs.end-page309en_NZ
pubs.finish-date2009-11-25en_NZ
pubs.start-date2009-11-23en_NZ


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