Eye-tracking technology

Electronics & Communication

Department

GVIC

Under the Guidance of:

Mr. K.N.Chandra Sekhar

Associate professor ,

Dept. of ECE.

Presented by :

N.Vikram Raja,

119M1A0458,

Dept. of ECE

GVIC

Contents:

» Why Eye Tracking?

» Eye Tracking Metrics

» Tobii Eye technology

» Basic operating principles

» Applications

» Advantages & Disadvantages

» A type of Demo

» Conclusion

Why eye tracking?

TO UNDERSTAND HUMAN BEHAVIOR AND

THINKING!

With an Eye Tracker we know exactly where a

person is looking

We get clear additional insight behaviour of

Our eye .

Tobii Eye technology:Tobii Technology is a Swedish high-technology company

that develops and sells products for eye control and eye tracking.

Eye Tracking Metrics

First fixation

Most fixations

Gaze time

Fixation order

Basic operating principles

Tobii eye trackers use near infrared diodes

to generate reflection patterns on the corneas

of the eyes of the user.

These reflection patterns, together with other

visual information about the person, are

collected by image sensors.

Pupil Corneal reflection

Applications:

TV commercials

In street advertising

Web advertising

Etc…

Gaze plotOriginal image for Magic face

Each “bubble”is at least 250 milli second.

The size of the bubble reflects the length of the fixation.

HOT SPOTS

Across all participants ,the visible areas in the

ad reflect the areas we looked at the longest

4.3

3 2.8

1.5

0.50

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

Face&Body Headline Tagline Product Image Brand Name

O/P chart

Result of Gaze Time

Revised Image for magic face Gaze plot (revised image)

HOT SPOTS: Results: Average gaze

time

4.3

3.53 2.8

2.2

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

Headline Face&Body Brand Name Product Image Tagline

O/P chart

4.3

3.5

32.8

2.2

3

4.3

0.5

1.5

2.8

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

Headline Face&Body Brand Name Product Image Tagline

Comparison of “pre” and “post” Ads : Average

Gaze Time

Series 1 Series 2

Advantages & Disadvantages of Eye Tracking

➢The equipment is expensive

➢Calibrating the equipment takes time

➢Eye movement is faster than other current input media

➢No training is required of normal users

➢Can determine where the user’s interest is focused automatically

Conclusion :

➢ Developing video games and graphics.

➢ Maximizing controllers’ efficiency in

vehicles driving.

➢ It is Helpful for handi-cap people when there

is no option for hands and speech

Thank You

Any Queries