Dina Katabi: A new way to monitor vital signs (that can see through walls)
迪娜 · 卡塔比: 一种（可穿透墙壁）监测生命体征的全新方式
Dina Katabi investigates how AI can make wireless devices sense human motion and vital signs. Full bio
Double-click the English transcript below to play the video.
very much fascinated by Star Wars,
is this notion of the Force,
all people and all objects
that you can't even see.
I would be sitting at home,
trying to feel the Force,
and started working on wireless signals.
or cellular systems,
kept nagging me,
they are like the Force."
they travel through space,
and walls and occlusions,
because our bodies are full of water,
just sense these minute reflections,
that I cannot see.
on building such a device,
some of our early results.
in the other office, behind the wall,
to monitor him as he moves.
using wireless signals.
is tracking his movements very accurately,
with the surrounding wireless signals.
that we can sense people
any wearables, through walls,
to think about is radar.
have seen this picture.
comes back to you,
wireless power at somebody.
like if they were in a microwave.
to deal with very weak signals,
has to be very sensitive.
unlike the sky, where it's empty --
that you can catch there.
and people there are.
not only reflects off the person,
off the floor, the ceiling,
off me and then off you,
then off the floor.
have evolved a lot,
became much more powerful,
very sensitive radios
of machine learning recently,
and interpret them
in the environment.
the radio is like the ear of our device
is like the brain,
a very powerful device.
using wireless signals?
very dear to my heart,
on some physiological signal
sees him as he walks to bed,
is what people call actigraphy.
that we can actually get sleep
the change in the brain waves
that as we go to sleep,
and we enter different stages:
and REM, or rapid eye movement.
related to sleep disorders,
to various diseases.
are associated with depression.
are associated with Alzheimer's.
to the hospital,
electrodes on their head,
that I can do the same thing
on the person's body?
throughout the night.
when this person is dreaming.
while you are sitting like that,
staying at a steady level
and show you a live demo.
to monitor Zach's breathing.
that you see here is the device,
in the video with the other guy,
his inhale-exhale motion.
are Zach breathing.
at a steady level,
physiological signals for you,
about this device
without any wearables,
to change his behavior
or charge anything special.
more information about their patients,
in chronic diseases,
and even depression.
are very important.
of health care in the US
about chronic diseases
to the hospital and the emergency room,
chronic disease patients in their home,
heartbeat, mobility, sleep --
before they occur
with multiple doctors
with many patients.
with patients that have COPD,
on improving their life,
and the Force in Star Wars,
very much fascinated,
health care with this new force.
we deployed is actually my aunt.
in the audience
loved ones who have chronic diseases.
that has a chronic disease patient,
sitting in the background
of this chronic disease patient,
in the physiological signal
as we know it today,
like the ethical framework around this?
this technology from being used
types of applications?
a very important question, of course,
about the Dark Side of the Force?
from trying to use this device
by doing certain movements,
who you are asking the device to monitor.
that we integrate to prevent misuse,
for policy, like everything else,
we can control any misuse.
ABOUT THE SPEAKERDina Katabi - Technologist
Dina Katabi investigates how AI can make wireless devices sense human motion and vital signs.
Why you should listen
Dina Katabi designs new wireless devices that use machine learning to sense people through walls and occlusions. Her devices look like a Wi-Fi box. They transmit a low-power wireless signal and capture its reflections as it bounces off people and objects. They analyze those reflections to learn how people walk, measure their gait and detect elderly falls. The device can also measure a person's breathing, heart rate and sleep quality using wireless signals, without any sensor on the person's body. Katabi is working with medical doctors to use her technology to detect health emergencies and provide a better understanding of chronic diseases such as Alzheimer's and Parkinson's.
Katabi is the Andrew & Erna Viterbi Professor of Electrical Engineering and Computer Science at MIT. She is also the director of the MIT's Center for Wireless Networks and Mobile Computing, a member of the National Academy of Engineering and a recipient of the MacArthur Fellowship. Her research has been recognized by the ACM Prize in Computing, the ACM Grace Murray Hopper Award, the SIGCOMM Test-of-Time Award, the IEEE William R. Bennett prize, the Faculty Research Innovation Fellowship, a Sloan Fellowship and multiple best paper awards. Several startups have been spun out of her lab, such as PiCharging and Emerald.
Dina Katabi | Speaker | TED.com