On the Aperture Problem of Binocular 3D Motion Perception
Like many predators, humans have forward-facing eyes that are set a short distance apart so that an extensive region of the visual field is seen from two different points of view. The human visual system can establish a three-dimensional (3D) percept from the projection of images into the left and r...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-11-01
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| Series: | Vision |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2411-5150/3/4/64 |
| _version_ | 1828369652390035456 |
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| author | Martin Lages Suzanne Heron |
| author_facet | Martin Lages Suzanne Heron |
| author_sort | Martin Lages |
| collection | DOAJ |
| description | Like many predators, humans have forward-facing eyes that are set a short distance apart so that an extensive region of the visual field is seen from two different points of view. The human visual system can establish a three-dimensional (3D) percept from the projection of images into the left and right eye. How the visual system integrates local motion and binocular depth in order to accomplish 3D motion perception is still under investigation. Here, we propose a geometric-statistical model that combines noisy velocity constraints with a spherical motion prior to solve the aperture problem in 3D. In two psychophysical experiments, it is shown that instantiations of this model can explain how human observers disambiguate 3D line motion direction behind a circular aperture. We discuss the implications of our results for the processing of motion and dynamic depth in the visual system. |
| first_indexed | 2024-04-14T06:27:32Z |
| format | Article |
| id | doaj.art-e81452dba9a744a6b045cdbdbb592d3c |
| institution | Directory Open Access Journal |
| issn | 2411-5150 |
| language | English |
| last_indexed | 2024-04-14T06:27:32Z |
| publishDate | 2019-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Vision |
| spelling | doaj.art-e81452dba9a744a6b045cdbdbb592d3c2022-12-22T02:07:45ZengMDPI AGVision2411-51502019-11-01346410.3390/vision3040064vision3040064On the Aperture Problem of Binocular 3D Motion PerceptionMartin Lages0Suzanne Heron1School of Psychology, University of Glasgow, Glasgow G12 8QB, UKSchool of Psychology, University of Glasgow, Glasgow G12 8QB, UKLike many predators, humans have forward-facing eyes that are set a short distance apart so that an extensive region of the visual field is seen from two different points of view. The human visual system can establish a three-dimensional (3D) percept from the projection of images into the left and right eye. How the visual system integrates local motion and binocular depth in order to accomplish 3D motion perception is still under investigation. Here, we propose a geometric-statistical model that combines noisy velocity constraints with a spherical motion prior to solve the aperture problem in 3D. In two psychophysical experiments, it is shown that instantiations of this model can explain how human observers disambiguate 3D line motion direction behind a circular aperture. We discuss the implications of our results for the processing of motion and dynamic depth in the visual system.https://www.mdpi.com/2411-5150/3/4/64velocitydisparitylocal motionbayesian inference |
| spellingShingle | Martin Lages Suzanne Heron On the Aperture Problem of Binocular 3D Motion Perception Vision velocity disparity local motion bayesian inference |
| title | On the Aperture Problem of Binocular 3D Motion Perception |
| title_full | On the Aperture Problem of Binocular 3D Motion Perception |
| title_fullStr | On the Aperture Problem of Binocular 3D Motion Perception |
| title_full_unstemmed | On the Aperture Problem of Binocular 3D Motion Perception |
| title_short | On the Aperture Problem of Binocular 3D Motion Perception |
| title_sort | on the aperture problem of binocular 3d motion perception |
| topic | velocity disparity local motion bayesian inference |
| url | https://www.mdpi.com/2411-5150/3/4/64 |
| work_keys_str_mv | AT martinlages ontheapertureproblemofbinocular3dmotionperception AT suzanneheron ontheapertureproblemofbinocular3dmotionperception |