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dc.contributor.authorWheeler, Lawrence
dc.date.accessioned2016-12-14T22:44:47Z
dc.date.available2016-12-14T22:44:47Z
dc.date.issued1973-06
dc.identifier.urihttp://hdl.handle.net/10150/621682
dc.descriptionQC 351 A7 no. 78en
dc.description.abstractObservers responded to abstract forms (quadrigons) in six experiments, under a signal detection paradigm. Duration of stimulus exposure was shown to have strong effects upon detection accuracy (two studies); immediate feedback of accuracy information to observers affected performance chiefly by influencing guessing bias, not sensitivity (two studies); images that had been blurred and then deblurred by means of an analog device were compared with unblurred originals, and the effects of the retrieval process (deblurring) were characterized quantitatively by a signal detection index (one study); and electroencephalographic correlates of signal detection responses were found to vary with performance accuracy and observer confidence (one study). Discussions of the theory of signal detectability and of electroencephalography, as tools in the study of image quality and of observer sensitivity, are included in the report.
dc.language.isoen_USen
dc.publisherOptical Sciences Center, University of Arizona (Tucson, Arizona)en
dc.relation.ispartofseriesOptical Sciences Technical Report 78en
dc.rightsCopyright © Arizona Board of Regents
dc.subjectOptics.en
dc.subjectSignal detection.en
dc.subjectSignal generators.en
dc.subjectPhysiological optics.en
dc.subjectOptical images.en
dc.subjectVisual perception.en
dc.titleFURTHER STUDIES OF THE DETECTABILITY OF DEGRADED VISUAL SIGNALSen_US
dc.typeTechnical Reporten
dc.description.collectioninformationThis title from the Optical Sciences Technical Reports collection is made available by the College of Optical Sciences and the University Libraries, The University of Arizona. If you have questions about titles in this collection, please contact repository@u.library.arizona.edu.
refterms.dateFOA2018-06-28T06:18:15Z
html.description.abstractObservers responded to abstract forms (quadrigons) in six experiments, under a signal detection paradigm. Duration of stimulus exposure was shown to have strong effects upon detection accuracy (two studies); immediate feedback of accuracy information to observers affected performance chiefly by influencing guessing bias, not sensitivity (two studies); images that had been blurred and then deblurred by means of an analog device were compared with unblurred originals, and the effects of the retrieval process (deblurring) were characterized quantitatively by a signal detection index (one study); and electroencephalographic correlates of signal detection responses were found to vary with performance accuracy and observer confidence (one study). Discussions of the theory of signal detectability and of electroencephalography, as tools in the study of image quality and of observer sensitivity, are included in the report.


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