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Motion-based super-resolution in the peripheral visual field

Improvements in foveal acuity for moving targets have been interpreted as evidence for the ability of the visual system to combine information over space and time, in order to reconstruct the image at a higher resolution (super-resolution). Here, we directly test whether this occurs in the periphera...

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Autores principales: Patrick, Jonathan A., Roach, Neil W., McGraw, Paul V.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Association for Research in Vision and Ophthalmology 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5685423/
https://www.ncbi.nlm.nih.gov/pubmed/28837961
http://dx.doi.org/10.1167/17.9.15
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author Patrick, Jonathan A.
Roach, Neil W.
McGraw, Paul V.
author_facet Patrick, Jonathan A.
Roach, Neil W.
McGraw, Paul V.
author_sort Patrick, Jonathan A.
collection PubMed
description Improvements in foveal acuity for moving targets have been interpreted as evidence for the ability of the visual system to combine information over space and time, in order to reconstruct the image at a higher resolution (super-resolution). Here, we directly test whether this occurs in the peripheral visual field and discuss its potential for improving functional capacity in ocular disease. The effect of motion on visual acuity was first compared under conditions in which performance was limited either by natural undersampling in the retinal periphery or by the presence of overlaid masks with opaque elements to simulate retinal loss. To equate the information content of moving and static sequences, we next manipulated the dynamic properties of the masks. Finally, we determined the dependence of motion-related improvements on the object of motion (target or mask) and its trajectory (smooth or jittered). Motion improved visual acuity for masked but not unmasked peripheral targets. Equating the information content of moving and static conditions removed some but not all of this benefit. Residual motion-related improvements were largest in conditions in which the target moved along a consistent and predictable path. Our results show that motion can improve peripheral acuity in situations in which performance is limited by abnormal undersampling. These findings are consistent with the operation of a super-resolution system and could have important implications for any pathology that alters the regular sampling properties of the retinal mosaic.
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spelling pubmed-56854232017-11-16 Motion-based super-resolution in the peripheral visual field Patrick, Jonathan A. Roach, Neil W. McGraw, Paul V. J Vis Article Improvements in foveal acuity for moving targets have been interpreted as evidence for the ability of the visual system to combine information over space and time, in order to reconstruct the image at a higher resolution (super-resolution). Here, we directly test whether this occurs in the peripheral visual field and discuss its potential for improving functional capacity in ocular disease. The effect of motion on visual acuity was first compared under conditions in which performance was limited either by natural undersampling in the retinal periphery or by the presence of overlaid masks with opaque elements to simulate retinal loss. To equate the information content of moving and static sequences, we next manipulated the dynamic properties of the masks. Finally, we determined the dependence of motion-related improvements on the object of motion (target or mask) and its trajectory (smooth or jittered). Motion improved visual acuity for masked but not unmasked peripheral targets. Equating the information content of moving and static conditions removed some but not all of this benefit. Residual motion-related improvements were largest in conditions in which the target moved along a consistent and predictable path. Our results show that motion can improve peripheral acuity in situations in which performance is limited by abnormal undersampling. These findings are consistent with the operation of a super-resolution system and could have important implications for any pathology that alters the regular sampling properties of the retinal mosaic. The Association for Research in Vision and Ophthalmology 2017-08-24 /pmc/articles/PMC5685423/ /pubmed/28837961 http://dx.doi.org/10.1167/17.9.15 Text en Copyright 2017 The Authors http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License.
spellingShingle Article
Patrick, Jonathan A.
Roach, Neil W.
McGraw, Paul V.
Motion-based super-resolution in the peripheral visual field
title Motion-based super-resolution in the peripheral visual field
title_full Motion-based super-resolution in the peripheral visual field
title_fullStr Motion-based super-resolution in the peripheral visual field
title_full_unstemmed Motion-based super-resolution in the peripheral visual field
title_short Motion-based super-resolution in the peripheral visual field
title_sort motion-based super-resolution in the peripheral visual field
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5685423/
https://www.ncbi.nlm.nih.gov/pubmed/28837961
http://dx.doi.org/10.1167/17.9.15
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