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- This video describes EQ-RADIO, a new technology from Professor
Katabi's group at MIT, that can recognize people's emotions
using wireless signals.
Was there a moment in your life when you looked at someone's
face, but you could not figure out how they feel?
What if your wireless router can tell people's emotions,
even if they don't show them on their faces?
This is exactly what our technology does.
This is our device.
The device transmits a wireless signal
which reflects off a person's body, and comes back.
It captures these reflections, and analyzes them
to infer the person's emotions.
Specifically, our algorithms zoom in
on the wireless reflections to extract
the minute variations due to breathing, and heartbeat.
We then further analyze these reflections
to extract the breathing signal, and the heart beat signal.
We then zoom in more on these signals
to obtain individual heartbeat, and breathing cycles,
and feed these as features into a machine learning algorithm
to recognize that person's emotions.
The device can automatically know
if the person is excited, angry, sad, or happy.
Our device can recognize emotions
with an accuracy of 87%, while relying purely on wireless
We envision that EQ-Radio can be used in many applications.
It can recognize the person's emotions
while he is watching a movie, and provide movie makers
with better tools to evaluate user experience.
It can also allow smart environments
to detect emotional states like depression,
and inform us to improve our emotional well-being.
It can even enable these environments
to react to our moods, and adjust lighting or music
To learn more about this research, please
check out our website.