On the inverse problem of binocular 3D motion perception.
It is shown that existing processing schemes of 3D motion perception such as interocular velocity difference, changing disparity over time, as well as joint encoding of motion and disparity, do not offer a general solution to the inverse optics problem of local binocular 3D motion. Instead we sugges...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2010-11-01
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| Series: | PLoS Computational Biology |
| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21124957/pdf/?tool=EBI |
| _version_ | 1818721342927667200 |
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| author | Martin Lages Suzanne Heron |
| author_facet | Martin Lages Suzanne Heron |
| author_sort | Martin Lages |
| collection | DOAJ |
| description | It is shown that existing processing schemes of 3D motion perception such as interocular velocity difference, changing disparity over time, as well as joint encoding of motion and disparity, do not offer a general solution to the inverse optics problem of local binocular 3D motion. Instead we suggest that local velocity constraints in combination with binocular disparity and other depth cues provide a more flexible framework for the solution of the inverse problem. In the context of the aperture problem we derive predictions from two plausible default strategies: (1) the vector normal prefers slow motion in 3D whereas (2) the cyclopean average is based on slow motion in 2D. Predicting perceived motion directions for ambiguous line motion provides an opportunity to distinguish between these strategies of 3D motion processing. Our theoretical results suggest that velocity constraints and disparity from feature tracking are needed to solve the inverse problem of 3D motion perception. It seems plausible that motion and disparity input is processed in parallel and integrated late in the visual processing hierarchy. |
| first_indexed | 2024-12-17T20:37:13Z |
| format | Article |
| id | doaj.art-cbd3f6e0bc394544bee3013a03e54ef0 |
| institution | Directory Open Access Journal |
| issn | 1553-734X 1553-7358 |
| language | English |
| last_indexed | 2024-12-17T20:37:13Z |
| publishDate | 2010-11-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS Computational Biology |
| spelling | doaj.art-cbd3f6e0bc394544bee3013a03e54ef02022-12-21T21:33:24ZengPublic Library of Science (PLoS)PLoS Computational Biology1553-734X1553-73582010-11-01611e100099910.1371/journal.pcbi.1000999On the inverse problem of binocular 3D motion perception.Martin LagesSuzanne HeronIt is shown that existing processing schemes of 3D motion perception such as interocular velocity difference, changing disparity over time, as well as joint encoding of motion and disparity, do not offer a general solution to the inverse optics problem of local binocular 3D motion. Instead we suggest that local velocity constraints in combination with binocular disparity and other depth cues provide a more flexible framework for the solution of the inverse problem. In the context of the aperture problem we derive predictions from two plausible default strategies: (1) the vector normal prefers slow motion in 3D whereas (2) the cyclopean average is based on slow motion in 2D. Predicting perceived motion directions for ambiguous line motion provides an opportunity to distinguish between these strategies of 3D motion processing. Our theoretical results suggest that velocity constraints and disparity from feature tracking are needed to solve the inverse problem of 3D motion perception. It seems plausible that motion and disparity input is processed in parallel and integrated late in the visual processing hierarchy.https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21124957/pdf/?tool=EBI |
| spellingShingle | Martin Lages Suzanne Heron On the inverse problem of binocular 3D motion perception. PLoS Computational Biology |
| title | On the inverse problem of binocular 3D motion perception. |
| title_full | On the inverse problem of binocular 3D motion perception. |
| title_fullStr | On the inverse problem of binocular 3D motion perception. |
| title_full_unstemmed | On the inverse problem of binocular 3D motion perception. |
| title_short | On the inverse problem of binocular 3D motion perception. |
| title_sort | on the inverse problem of binocular 3d motion perception |
| url | https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21124957/pdf/?tool=EBI |
| work_keys_str_mv | AT martinlages ontheinverseproblemofbinocular3dmotionperception AT suzanneheron ontheinverseproblemofbinocular3dmotionperception |