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Article: Perception of surface slant from oriented textures
Title | Perception of surface slant from oriented textures |
---|---|
Authors | |
Keywords | 3D vision Cue integration Depth perception Linear perspective Slant perception Texture gradients |
Issue Date | 2006 |
Publisher | Association for Research in Vision and Ophthalmology. The Journal's web site is located at http://wwwjournalofvisionorg/ |
Citation | Journal Of Vision, 2006, v. 6 n. 9, p. 882-897 How to Cite? |
Abstract | When a surface covered with a regular texture is viewed in perspective, the projected texture provides a number of cues to 3D surface orientation. For oriented textures, one cue is perspective convergence: symmetry lines that are parallel along the surface project to lines that vary systematically in orientation. We investigated the contribution of perspective convergence to perception of 3D slant and tested whether slant from convergence depends on oriented spectral components. Subjects judged the sign of slant about a vertical axis of rotation. Textures were composed of filled circles in three spatial arrangements: a hex grid with symmetry lines at 0 and ±60 deg relative to the tilt direction (aligned condition), a hex grid with symmetry lines at 90 and ±30 deg (perpendicular condition), and random arrangements with similar average spacing (isotropic condition). The two hex grid textures differed in the amount of spectral energy present in the tilt direction (horizontal) but were otherwise closely matched. Slant discrimination thresholds for monocular stimuli were higher for isotropic textures than for either of the two hex grid textures and were higher for the perpendicular texture than for the aligned texture. In a second experiment, we measured the weight given to texture relative to binocular slant information for cue conflict stimuli (±5 deg). Weights were found to agree with individual subjects' monocular thresholds, in accordance with optimal estimation theory. We conclude that the visual system uses perspective convergence to perceive slant and that effective use of convergence requires the presence of spectral components aligned with the tilt direction. © 2006 ARVO. |
Persistent Identifier | http://hdl.handle.net/10722/169008 |
ISSN | 2023 Impact Factor: 2.0 2023 SCImago Journal Rankings: 0.849 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Saunders, JA | en_US |
dc.contributor.author | Backus, BT | en_US |
dc.date.accessioned | 2012-10-08T03:40:43Z | - |
dc.date.available | 2012-10-08T03:40:43Z | - |
dc.date.issued | 2006 | en_US |
dc.identifier.citation | Journal Of Vision, 2006, v. 6 n. 9, p. 882-897 | en_US |
dc.identifier.issn | 1534-7362 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/169008 | - |
dc.description.abstract | When a surface covered with a regular texture is viewed in perspective, the projected texture provides a number of cues to 3D surface orientation. For oriented textures, one cue is perspective convergence: symmetry lines that are parallel along the surface project to lines that vary systematically in orientation. We investigated the contribution of perspective convergence to perception of 3D slant and tested whether slant from convergence depends on oriented spectral components. Subjects judged the sign of slant about a vertical axis of rotation. Textures were composed of filled circles in three spatial arrangements: a hex grid with symmetry lines at 0 and ±60 deg relative to the tilt direction (aligned condition), a hex grid with symmetry lines at 90 and ±30 deg (perpendicular condition), and random arrangements with similar average spacing (isotropic condition). The two hex grid textures differed in the amount of spectral energy present in the tilt direction (horizontal) but were otherwise closely matched. Slant discrimination thresholds for monocular stimuli were higher for isotropic textures than for either of the two hex grid textures and were higher for the perpendicular texture than for the aligned texture. In a second experiment, we measured the weight given to texture relative to binocular slant information for cue conflict stimuli (±5 deg). Weights were found to agree with individual subjects' monocular thresholds, in accordance with optimal estimation theory. We conclude that the visual system uses perspective convergence to perceive slant and that effective use of convergence requires the presence of spectral components aligned with the tilt direction. © 2006 ARVO. | en_US |
dc.language | eng | en_US |
dc.publisher | Association for Research in Vision and Ophthalmology. The Journal's web site is located at http://wwwjournalofvisionorg/ | en_US |
dc.relation.ispartof | Journal of Vision | en_US |
dc.subject | 3D vision | - |
dc.subject | Cue integration | - |
dc.subject | Depth perception | - |
dc.subject | Linear perspective | - |
dc.subject | Slant perception | - |
dc.subject | Texture gradients | - |
dc.subject.mesh | Cues | en_US |
dc.subject.mesh | Depth Perception | en_US |
dc.subject.mesh | Discrimination (Psychology) | en_US |
dc.subject.mesh | Form Perception | en_US |
dc.subject.mesh | Humans | en_US |
dc.subject.mesh | Male | en_US |
dc.subject.mesh | Models, Psychological | en_US |
dc.subject.mesh | Orientation | en_US |
dc.subject.mesh | Photic Stimulation - Methods | en_US |
dc.subject.mesh | Psychophysics | en_US |
dc.subject.mesh | Rotation | en_US |
dc.subject.mesh | Sensory Thresholds | en_US |
dc.subject.mesh | Vision, Binocular | en_US |
dc.subject.mesh | Vision, Monocular | en_US |
dc.subject.mesh | Visual Perception | en_US |
dc.title | Perception of surface slant from oriented textures | en_US |
dc.type | Article | en_US |
dc.identifier.email | Saunders, JA:jsaun@hkucc.hku.hk | en_US |
dc.identifier.authority | Saunders, JA=rp00638 | en_US |
dc.description.nature | link_to_OA_fulltext | en_US |
dc.identifier.doi | 10.1167/6.9.3 | en_US |
dc.identifier.pmid | 17083282 | en_US |
dc.identifier.scopus | eid_2-s2.0-33747162713 | en_US |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-33747162713&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 6 | en_US |
dc.identifier.issue | 9 | en_US |
dc.identifier.spage | 882 | en_US |
dc.identifier.epage | 897 | en_US |
dc.identifier.isi | WOS:000243594000003 | - |
dc.publisher.place | United States | en_US |
dc.identifier.scopusauthorid | Saunders, JA=7402341514 | en_US |
dc.identifier.scopusauthorid | Backus, BT=7003366612 | en_US |
dc.identifier.issnl | 1534-7362 | - |