Computer Control: Full Computer Access with Eye Gaze

PRESENTER: Tobii Dynavox
software is continuously

improving, so there may
be slight differences

between the actual software
and our training materials.

Control is an intuitive way of
interacting with your computer

using eye tracking.

Designed for people with
conditions such as ALS,

cerebral palsy, and
spinal cord injuries,

Control makes it easy
to navigate and control

your computer using only your
eyes with complete independence.

You might be wondering how
does eye tracking work?

First, the eye tracker at
the base of the computer

sends out near-infrared light,
which is reflected in your eyes.

Those reflections are picked up
by the eye tracker's cameras.

Through advanced filtering
and calculations,

the eye tracker determines where
you're looking on the screen,

putting you in control.

Tobii Dynavox eye
tracking technology

can track one or both eyes
across a variety of conditions

having overcome barriers like
bright sunlight, glasses,

head movement, and positioning.

Control introduces a concept
called interaction first,

which mimics the
natural way you would

use a computer with a mouse.

This means you first navigate
to the object on screen

that you want to interact
with by looking at the icon.

And then choose
what function you

want to perform whether that's
right click, double click,

or something else.

To open the Google Chrome
browser, for example,

you would activate the
double click option.

The gaze trace
provides a clear visual

of where you are
looking on the screen.

This trace follows
your gaze, locking

if a fixation is detected.

This happens when you stare
at one spot long enough.

To unlock, simply
move your gaze away.

But to interact, select the
activator icon to bring up

the interaction menu.

Let's take a closer
look at this menu.

Every time you select
the activator icon,

the interaction menu opens
in the center of your screen

like this.

Notice that a magnified
image of the selected area

is displayed in the middle with
a menu options surrounding it.

This centralized radial
menu improves eye tracking

accuracy and efficiency.

You'll find all of your
main interaction functions

in this menu including
double click, left click,

scroll, right click,
click and drag,

opening an on screen
keyboard, and adjust target

for fine tuning your
initial selection.

Let's watch how
easy it is to use

the tools in computer control
to navigate your computer.

Imagine you want to look
up today's weather online.

First, fix your gaze on
the Google Chrome icon.

Select the activator
icon to open your menu

and then choose double click.

Now that your browser
is open, fix your gaze

on the address bar.

Again, select the activator
icon and choose keyboard

to enter text.

Notice how word prediction
makes this process easy.

Select enter on the
keyboard to start the search

and then close the keyboard.

To scroll through
your result options,

fix your gaze anywhere
on the screen,

select the activator
icon, and select scroll.

Look toward the
bottom of your screen

to start scrolling down to
slow down the scrolling speed,

keep your gaze closer
to the scroll icon

or look up to go back.

When you have found the website
you want, close the scroll tool.

Now fix your gaze on the link,
select the activator icon,

and select left click.

Now you're ready
to read the weather

and you did everything
with your eyes.

For more options
with Control, simply

gaze down out of the screen area
to bring up the off screen menu.

Here you can access
the app switcher,

enable continuous click,
pause eye gaze, and even more

like adjusting settings and
calibrating the software

to your eyes.

Control even provides
quick start guides

right within the
software to orient you

to all the controls available.

All in all, Control
provides eye gaze users

with speed and
precision, reduced eye

fatigue, and more
successful interactions.

The bottom line
is Control allows

you to use the apps
you choose and pursue

the goals that matter to you.

Explore more about Control in
the Tobii Dynavox learning hub.