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Conference Paper: Stereo improves 3D shape discrimination even when rich monocular shape cues are available

TitleStereo improves 3D shape discrimination even when rich monocular shape cues are available
Authors
KeywordsCue Combination
Shading
Shape Discrimination
Stereo
Viewpoint Invariance
Issue Date2011
PublisherAssociation for Research in Vision and Ophthalmology. The Journal's web site is located at http://wwwjournalofvisionorg/
Citation
The 11th Annual Meeting of the Vision Sciences Society (VSS 2011), Naples, FL., 6-11 May 2011. In Journal of Vision, 2011, v. 11 n. 9, p. 1-12 How to Cite?
AbstractWe measured the ability to discriminate 3D shapes across changes in viewpoint and illumination based on rich monocular 3D information and tested whether the addition of stereo information improves shape constancy. Stimuli were images of smoothly curved, random 3D objects. Objects were presented in three viewing conditions that provided different 3D information: shading-only, stereo-only, and combined shading and stereo. Observers performed shape discrimination judgments for sequentially presented objects that differed in orientation by rotation of 0 degrees -60 degrees in depth. We found that rotation in depth markedly impaired discrimination performance in all viewing conditions, as evidenced by reduced sensitivity (d') and increased bias toward judging same shapes as different. We also observed a consistent benefit from stereo, both in conditions with and without change in viewpoint. Results were similar for objects with purely Lambertian reflectance and shiny objects with a large specular component. Our results demonstrate that shape perception for random 3D objects is highly viewpoint-dependent and that stereo improves shape discrimination even when rich monocular shape cues are available.
DescriptionThis journal issue is meeting abstracts presented at VSS 2011
Open Access Journal
Persistent Identifierhttp://hdl.handle.net/10722/136189
ISSN
2015 Impact Factor: 2.341
2015 SCImago Journal Rankings: 1.042
ISI Accession Number ID
Funding AgencyGrant Number
Hong Kong Research Grants CouncilGRF HKU-752010H
Funding Information:

We would like to thank two anonymous reviewers for their comments. This work was supported by a grant from the Hong Kong Research Grants Council (GRF HKU-752010H). Part of this work was presented at the 2011 Meeting of Vision Sciences Society.

 

DC FieldValueLanguage
dc.contributor.authorLee, YLen_US
dc.contributor.authorSaunders, JAen_US
dc.date.accessioned2011-07-27T02:04:23Z-
dc.date.available2011-07-27T02:04:23Z-
dc.date.issued2011en_US
dc.identifier.citationThe 11th Annual Meeting of the Vision Sciences Society (VSS 2011), Naples, FL., 6-11 May 2011. In Journal of Vision, 2011, v. 11 n. 9, p. 1-12en_US
dc.identifier.issn1534-7362-
dc.identifier.urihttp://hdl.handle.net/10722/136189-
dc.descriptionThis journal issue is meeting abstracts presented at VSS 2011-
dc.descriptionOpen Access Journal-
dc.description.abstractWe measured the ability to discriminate 3D shapes across changes in viewpoint and illumination based on rich monocular 3D information and tested whether the addition of stereo information improves shape constancy. Stimuli were images of smoothly curved, random 3D objects. Objects were presented in three viewing conditions that provided different 3D information: shading-only, stereo-only, and combined shading and stereo. Observers performed shape discrimination judgments for sequentially presented objects that differed in orientation by rotation of 0 degrees -60 degrees in depth. We found that rotation in depth markedly impaired discrimination performance in all viewing conditions, as evidenced by reduced sensitivity (d') and increased bias toward judging same shapes as different. We also observed a consistent benefit from stereo, both in conditions with and without change in viewpoint. Results were similar for objects with purely Lambertian reflectance and shiny objects with a large specular component. Our results demonstrate that shape perception for random 3D objects is highly viewpoint-dependent and that stereo improves shape discrimination even when rich monocular shape cues are available.-
dc.languageengen_US
dc.publisherAssociation for Research in Vision and Ophthalmology. The Journal's web site is located at http://wwwjournalofvisionorg/-
dc.relation.ispartofJournal of Visionen_US
dc.subjectCue Combination-
dc.subjectShading-
dc.subjectShape Discrimination-
dc.subjectStereo-
dc.subjectViewpoint Invariance-
dc.subject.meshContrast Sensitivity - physiology-
dc.subject.meshCues-
dc.subject.meshDepth Perception - physiology-
dc.subject.meshForm Perception - physiology-
dc.subject.meshPattern Recognition, Visual - physiology-
dc.titleStereo improves 3D shape discrimination even when rich monocular shape cues are availableen_US
dc.typeConference_Paperen_US
dc.identifier.emailLee, YL: younglee@hku.hken_US
dc.identifier.emailSaunders, JA: jsaun@hkucc.hku.hken_US
dc.identifier.authorityLee, YL=rp00866en_US
dc.identifier.authoritySaunders, JA=rp00638en_US
dc.description.naturelink_to_OA_fulltext-
dc.identifier.doi10.1167/11.9.6-
dc.identifier.pmid21849629-
dc.identifier.scopuseid_2-s2.0-80054710819-
dc.identifier.hkuros186965en_US
dc.identifier.hkuros194121-
dc.identifier.volume11-
dc.identifier.issue9-
dc.identifier.spage1-
dc.identifier.epage12-
dc.identifier.eissn1534-7362-
dc.identifier.isiWOS:000294665900006-
dc.publisher.placeUnited States-
dc.description.otherThe 11th Annual Meeting of the Vision Sciences Society (VSS 2011), Naples, FL., 6-11 May 2011. In Journal of Vision, 2011, v. 11 n. 9, p. 1-12-
dc.identifier.scopusauthoridLee, YL=15033830300-
dc.identifier.scopusauthoridSaunders, JA=7402341514-

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