Experiences from the Use of an Eye-Tracking System in the Wild - - PowerPoint PPT Presentation
Experiences from the Use of an Eye-Tracking System in the Wild - - PowerPoint PPT Presentation
Experiences from the Use of an Eye-Tracking System in the Wild Kuparinen Liisa, Irvankoski Katja 2 Objectives of the study To resolve the suitability of the eye-tracking method for the research in the wild To
Objectives of the study
Experiences from the Use of an Eye-Tracking System in the Wild. Observing the Mobile User Experience. 17.10.2010. 2
To resolve the suitability of the eye-tracking method for the research in the wild To point the issues that need to be considered when planning a study with eye- tracking system in the wild
To form a research framework for the use of eye- tracking systems in the wild
Why eye-tracking?
Experiences from the Use of an Eye-Tracking System in the Wild. Observing the Mobile User Experience. 17.10.2010. 3
independence
- f data from
userʼs memory indication of problem solving strategies information about the gaze
- bjects
large amount of data
Test setting
Finnish forests Varying weather conditions SMIʼs eye-tracking system
- Cameras on a helmet
- Laptop on a backpack
Three users Specific tasks + interviews
Experiences from the Use of an Eye-Tracking System in the Wild. Observing the Mobile User Experience. 17.10.2010. 4
Test tasks
Without map
- Walk according to the given guidance
- Describe what you see
- Describe what objects you used to locate yourself
- Describe the route walked through
With mobile map
- Walk according to the given guidance
- Locate yourself on the map
- Navigate on foot to a location pointed on the map
Experiences from the Use of an Eye-Tracking System in the Wild. Observing the Mobile User Experience. 17.10.2010. 5
Challenges with data quality
Gaze objects on varying distances in same direction Parallax problem Calibration Defining Areas of Interest
Experiences from the Use of an Eye-Tracking System in the Wild. Observing the Mobile User Experience. 17.10.2010. 6
Challenges with experimental conditions
Mobility with an eye- tracking system Userʼs eyes Weather + lighting conditions Battery capacity
Experiences from the Use of an Eye-Tracking System in the Wild. Observing the Mobile User Experience. 17.10.2010. 7
Pictures from SMI’s and Tobii’s web sites
Fixation versus attention
Recognition test:
- After walk a set of 16
pictures was shown.
- Task: recognise which are
from the route.
- Only couple went right
Cognitive processes
- Eye-movements may be an
indication of shift in attention.
- Attention may be shifted
without eye-movements.
Experiences from the Use of an Eye-Tracking System in the Wild. Observing the Mobile User Experience. 17.10.2010. 8
Conclusions
Access to data that can not be reached by any other method
- Though a need for complementary methods
Essential to be aware of the problems
- Some issues are easy to take into account
- Some are in the need of technical development of eye-tracking systems
A need to study more eye-tracking in the wild
- To validate these findings
- To resolve the other suitable use cases and conditions
Experiences from the Use of an Eye-Tracking System in the Wild. Observing the Mobile User Experience. 17.10.2010. 9