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Haptic/Graphic Rehabilitation: Integrating a Robot into a Virtual Environment Library and Applying it to Stroke Therapy

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Improved mobility performance with an artificial vision therapy system using a thermal sensor.

Yingchen He^1,2, Susan Y Sun¹, Arup Roy³

¹Department of Ophthalmology and Visual Neurosciences, University of Minnesota, Minneapolis, MN, United States of America.

Journal of Neural Engineering

|July 11, 2020

Summary

This summary is machine-generated.

Integrating thermal imaging with the Argus II retinal prosthesis significantly improved navigation for users. This enhancement aids in avoiding obstacles and people, boosting mobility and safety for artificial vision system users.

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Area of Science:

Biomedical Engineering
Ophthalmology
Computer Vision

Background:

The Argus II retinal prosthesis provides artificial vision but has limitations in complex environments.
Improving mobility and safety for individuals with retinitis pigmentosa is crucial.

Purpose of the Study:

To evaluate the integration of thermal imaging with the Argus II system.
To assess improvements in scene simplification and mobility performance.

Main Methods:

Four Argus II users performed navigation tasks with original and thermal-integrated systems.
Evaluated walking speed, navigation errors, and collisions.

Main Results:

Thermal integration led to a 75% smaller deviation angle and 48% smaller distance error.
Collisions decreased by 30%, with no impact on walking speed.
Effective navigation in both light and dark conditions.

Conclusions:

Thermal imaging enhances the Argus II system's ability to detect and avoid people.
Future artificial vision systems could benefit from combined thermal and visible-light cameras.
Improved mobility and safety can enhance the quality of life for users.