Article
Better edge perception through acutance use in image interpolation may be beneficial for artificial vision patients
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Authors
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Kazim Hilmi Or
- Private Office of Ophthalmology, Istanbul, Turkey
| Published: | November 30, 2017 |
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Outline
Text
Objective: There are many software supported methods, to get a detailed image of the environment of the artificial vision patients, to have more exact electrical stimulus for creating phosphenes in a grayscale. But photographic sharpness and edge perception in an image is created in photographic means by acutance and not by resolution.
Materials and Methods: The mechanism of acutance is described, which can be used separately or combined with other methods in image preparation. The difference between normal vision acutance, its relevance in normal vision and its probable effect in the image used for electrical stimulus of the retina for artificial vision are described.
Results: The image used for electrical stimulus in artificial vision doesn’t need to have a high resolution. But the edges of the objects in the images have to have a high contrast for a “sharper” image, which can be achieved through acutance.
Discussion: Acutance is used routinely in photography. In normal human vision there is no need for acutance algorithms. Due to the special conditions in acquiring and transmitting images in artificial vision, it may be useful for a better edge perception in artificial vision perception.
Acknowledgment: This work has no financial support from any institution.
