Mind-Reading AI Tech That Recreates Images of Faces is now Here
Mind-Reading
AI Tech That Recreates Images of Faces is now Here
By
Rechelle Ann Fuertes February 27, 2018
A team of
neuroscientists just created a mind-reading AI that can read minds with
astounding accuracy.
Welcome
to the 21st century! The era where science-fiction is rapidly turning into
reality.
To
add to the ever-growing list of inventions straight
out of science fiction, psychologists from the University
of Toronto Scarborough have recently developed a mind-reading
AI technology.
According
to reports, this artificial intelligence can
recreate images seen by a human based on their brain activity collected by electroencephalogram (EEG)
sensors.
Sound
familiar?
Well,
if you’re a fan of the sci-fi British anthology TV series Black
Mirror, the AI-powered technology closely resembles the one
featured in the episode Crocodile.
In Crocodile, an insurance investigator peeks
inside the head of potential witnesses using a button-like AI-powered device.
The small device enables the investigator to see through the memories of the
witnesses by projecting images to a separate display machine.
You probably
get the picture now. It’s a highly sophisticated technology that we only see on
our television screens. That was, until now.
By
using advanced mapping techniques, the researchers were able to extract data
from a person’s brain and convert it into useful information. That includes
reconstructions of facial images in your head.
The Mind-Reading AI Technology
During
the experiment, the researchers hooked up their subjects to an EEG
brainwave-reading machine and were shown images of faces.
The
team reportedly fed a neural network huge
numbers of people’s faces and taught it to spot characteristics and patterns in
each photo.
Then,
the machine learned how to determine and distinguish these characteristics from
one another. With this platform, it was then taught by the researchers to match
it with brain activities recorded by the EEG scans while
the subjects are looking at the faces.
The mind-reading AI technology then analyzed the information
gathered from the experiment and used it to recreate the images stored in the
subjects’ minds digitally.
“When we see something, our brain creates a mental percept,
which is essentially a mental impression of that thing. We were able to capture
this percept using EEG to get a direct illustration of what’s happening in the
brain during this process,” Dan
Nemrodov, a postdoctoral fellow at the University of
Toronto Scarborough, said.
This
is not the first time that scientists have used neuroimaging techniques to
reconstruct images based on visual stimuli.
However, this is the first time that the images were created using EEG data.
Previous studies were conducted using functional MRI technology which
measures activities in the brain through blood flow changes.
Using
EEG to recreate digital images based on brain activities is known to be far
more portable, cost-efficient, and can produce greater levels of detail in
milliseconds.
What are
the Applications of This Mind-Reading AI?
The
researchers believe that their mind-reading AI could one day be used in law
enforcement to provide more accurate eyewitness reports about potential
suspects’ semblance. To date, most of this suspected criminal information is
still being relayed to sketch artists through verbal descriptions.
It
might also be used to help people with verbal communication difficulties by
visually reconstructing their thoughts at any given time. This may include
memories and imagination to enable them to better express themselves.
The
mind-reading AI is, naturally, not as sophisticated as the one showcased in
Black Mirror. However, with more developments, the researchers believe that it
could one day reach memories hidden inside our brains and play them like a
video.
The
researchers are hoping to improve their work and move beyond faces to explore
the possibility of accurately recreating images of other objects. The team’s study was
published in the journal eNeuro.
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