The Visible Ground Surface as a Reference Frame for Scaling Binocular Depth of a Target in Midair.
The natural ground surface carries texture information that extends continuously from one's feet to the horizon, providing a rich depth resource for accurately locating an object resting on it. Here, we showed that the ground surface's role as a reference frame also aids in locating a target suspend...
| Published in: | Journal of Experimental Psychology. Human Perception & Performance Vol. 41; no. 1; pp. 111 - 127 |
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| Main Authors: | , , , , |
| Format: | Article |
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American Psychological Association
Feb2015
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| Subjects: | |
| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=100934022&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 100934022 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 00961523 EPH jtl: Journal of Experimental Psychology. Human Perception & Performance issn: 00961523 maglogo: N pubinfo: dt: Feb2015 vid: 41 iid: 1 pid: 34 pub: American Psychological Association artinfo: ui: 100934022 10.1037/a0038287 ppf: 111 ppct: 16 formats: tig: atl: The Visible Ground Surface as a Reference Frame for Scaling Binocular Depth of a Target in Midair. aug: au: Jun Wu He, Zijiang J. Liu Zhou Pan Shi Teng Leng Ooi affil: University of Louisville East China Normal University Ohio State University su: Space perception Binocular vision Texture analysis (Image processing) Visual perception Visual pathways sug: subj: Space perception Binocular vision Texture analysis (Image processing) Visual perception Visual pathways keyword: blind walking gesturing task ground surface linear perspective relative binocular disparity space perception texture gradient blind walking gesturing task ground surface linear perspective relative binocular disparity space perception texture gradient ab: The natural ground surface carries texture information that extends continuously from one's feet to the horizon, providing a rich depth resource for accurately locating an object resting on it. Here, we showed that the ground surface's role as a reference frame also aids in locating a target suspended in midair based on relative binocular disparity. Using real world setup in our experiments, we first found that a suspended target is more accurately localized when the ground surface is visible and the observer views the scene binocularly. In addition, the increased accuracy occurs only when the scene is viewed for 5 s rather than 0.15 s, suggesting that the binocular depth process takes time. Second, we found that manipulation of the configurations of the texture-gradient and/or linear-perspective cues on the visible ground surface affects the perceived distance of the suspended target in midair. Third, we found that a suspended target is more accurately localized against a ground texture surface than a ceiling texture surface. This suggests that our visual system uses the ground surface as the preferred reference frame to scale the distance of a suspended target according to its relative binocular disparity. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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