Phosphene representation using Triplet Pose estimation
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2021-02-05
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en
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Abstract
With stimulation of the visual cortex, we can generate the perception
of so-called phosphenes, which are points of light perceptible without any
light entering the eye. Through the usage of these phosphenes we can
partially restore the vision of blind people by showing images on their
visual cortex. This phosphene vision, however, is limited compared to
regular vision due to having lower resolution and no colour contrast. The
limitations mean that the images we want to stimulate onto the visual
cortex need to be pre-processed, this is done so we only express the most
important information, making the information more understandable. For
the human body, a representation in phosphene vision can be made using
the locations of their joints to create a skeleton.
I present a model which uses triplet representation, a way of representing
people using more coordinates per joint than a regular representation
which provides more information about the dimensions of the human body.
Using the triplet model, I was able to get more information about the
shape of the human body. However, this information does not necessarily
translate well into phosphene vision due to noise and research into the
usability for blind people remains to be tested.
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Faculteit der Sociale Wetenschappen