Stereoscopic transparency: a test for binocular vision's disambiguating power1A part of this study was reported at the 19th European Conference on visual perception, Strasbourg 1996.1

Gepshtein, Sergei; Cooperman, Alexander

doi:10.1016/s0042-6989(98)00091-1

Cited by 24 publications

(5 citation statements)

References 28 publications

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“…Thus stereo-depth information is taken into account when estimating density, in line with studies on numerosity (Aida et al, 2013;Aida et al, 2015;Schütz, 2012). Along with the findings that density affects depth perception and depth-plane segmentation (Akerstrom & Todd, 1988;Buckthought & Wu, 2017;Gepshtein & Cooperman, 1998;Tsirlin et al, 2008;Tsirlin et al, 2012), density and depth processes appear to have a mutual influence.…”

Section: Discussionmentioning

confidence: 56%

“…the influence of density on depth) may provide some hints. Several studies have shown that the perception of random element, transparent surfaces defined by either stereo-depth or motion parallax is impaired at high element densities (Akerstrom & Todd, 1988;Buckthought & Wu, 2017;Gepshtein & Cooperman, 1998;Tsirlin, Allison, & Wilcox, 2008). One explanation of this finding is that increasing density will increase the ''correspondence problem'' (Tsirlin et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

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Simultaneous density contrast and binocular integration

2018

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Most research on texture density has utilized textures rendered as two-dimensional (2D) planar surfaces, consistent with the conventional definition of density as the number of texture elements per unit area. How the brain represents texture density information in the three-dimensional (3D) world is not yet clear. Here we tested whether binocular information affects density processing using simultaneous density contrast (SDC), in which the perceived density of a texture region is changed by a surround of different density. We considered the effect on SDC of two types of binocular information: the stereoscopic depth relationships and the interocular relationships between the center and surround textures. Observers compared the perceived density of two random dot patterns, one with a surround (test stimulus) and one without (match), using a 2AFC staircase procedure. In Experiment 1 we manipulated the stereo-depth of the surround plane systematically from near to far, relative to the center plane. SDC was reduced when the difference in stereo-depth between test center and surround increased. In Experiment 2 we spread the surround dots randomly across a stereo-depth volume from small to large volume sizes, and found that SDC was slightly reduced with volume size. The decrease of SDC in both experiments was observed with dense surrounds only, but not with sparse surrounds. In the last experiment we presented center and surround in the same depth plane but dichopticly, monopticly, and binocularly. A strong interocular transfer of SDC was found in the dichoptic condition. Together these results show that texture density processing is sensitive to binocularity.

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Section: Discussionmentioning

confidence: 56%

Section: Introductionmentioning

confidence: 99%

Simultaneous density contrast and binocular integration

2018

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“…1 , 3 . One may think that the depth reduction can be due to incorrect matches (often called ghost images or false projection), which are assumed to obstruct the visual system from finding correct matches; an increase in dot density could deteriorate stereopsis 23 , 24 . In the present study, however, we kept the number of elements in each eye constant; the total density of elements of the 2-, 3-, and 4-POTS configurations and the total number of correct matching and incorrect matching dots were the same among the three POTS.…”

Section: Discussionmentioning

confidence: 99%

Depth perception of stereoscopic transparent stimuli with frame manipulation

Aida,

Fukamachi,

Shimono

2024

Sci Rep

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Depth perception is crucial in human vision, allowing us to move and interact with our 3-D surroundings. We used a stereoscopic transparent stimulus comprising parallel overlapping transparent stereoscopic surfaces (POTS) to understand depth perception better. The study focused on exploring the effect of a surrounding frame on the perceived depth of a POTS configuration. The research was based on a proposed idea that explains an "off-frame" effect: a frame at a different depth from a 2-D photograph depicting a 3-D scene increases its apparent depth qualitatively. The idea assumes that processing the disparity between a frame and a photo reduces the reliability of the photograph's flatness cues and increases depth magnitude in depth cue integration. We examined whether the idea can be applied to a 3-D POTS with the flatness cue as the constant accommodation. Through three experiments, the study showed that frames impact the perceived depth magnitude of a POTS configuration. More specifically, the depth magnitude increases as the frame's disparity concerning the monitor plane increases and decreases as the frame's size increases. We discussed the results in the context of depth cue combination.

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“…Discussions of the strengths and weaknesses of those approaches have received considerable attention over the years (e.g. 15 , 16 ).…”

Section: Introductionmentioning

confidence: 99%

Composite binocular perception from dichoptic stimulus arrays with similar ensemble information

Cha

Blake

Chong

2018

Sci Rep

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We view the world through laterally displaced eyes that generate two streams of image signals differing slightly in their perspectives of the visual scene. The brain derives three-dimensional structures from these two image streams by establishing binocular matches and computing image disparities between the two eyes’ views. Since the binocular matching problem can have multiple, alternative solutions, vision relies on several strategies to determine the most probable matches. The current study investigated whether the visual system might utilize regularities among neighbouring features (feature ensembles) when confronting this problem. We hypothesized that binocular perception with unlikely, anomalous ensembles would indicate unsuccessful binocular matches. We made dichoptic stimulus arrays of coloured circles and manipulated the colour similarity of stimulus items to produce probable or unusual ensembles when superimposed. Using binocular rivalry as a proxy index, we found that composite perception of dichoptic arrays was more stable when the stimulus items shared similar colours, and that unusual ensembles induced binocular rivalry. Our results suggest that binocular ensembles can be utilized to detect unsuccessful binocular matches, thus uncovering a potentially useful supplemental strategy for identifying binocular matches when viewing potentially confusing visual scenes containing redundant visual features.

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Stereoscopic transparency: a test for binocular vision's disambiguating power1A part of this study was reported at the 19th European Conference on visual perception, Strasbourg 1996.1

Cited by 24 publications

References 28 publications

Simultaneous density contrast and binocular integration

Simultaneous density contrast and binocular integration

Depth perception of stereoscopic transparent stimuli with frame manipulation

Composite binocular perception from dichoptic stimulus arrays with similar ensemble information

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