Evaluation of vision-based head-trackers for assistive devices

S P Guness; F Deravi; K Sirlantzis; M G Pepper; M Sakel

doi:10.1109/EMBC.2012.6347068

Evaluation of vision-based head-trackers for assistive devices

Annu Int Conf IEEE Eng Med Biol Soc. 2012:2012:4804-7. doi: 10.1109/EMBC.2012.6347068.

Authors

S P Guness¹, F Deravi, K Sirlantzis, M G Pepper, M Sakel

Affiliation

¹ Faculty of Science, School of Digital Arts and Engineering, University of Kent, Canterbury, Kent CT2 7NZ, United Kingdom. spg23@kent.ac.uk

PMID: 23367002
DOI: 10.1109/EMBC.2012.6347068

Abstract

This paper presents a new evaluation methodology for assistive devices employing head-tracking systems based on an adaptation of the Fitts Test. This methodology is used to compare the effectiveness and performance of a new vision-based head tracking system using face, skin and motion detection techniques with two existing head tracking devices and a standard mouse. The application context and the abilities of the user are combined with the results from the modified Fitts Test to help determine the most appropriate devices for the user. The results suggest that this modified form of the Fitts test can be effectively employed for the comparison of different access technologies.

MeSH terms

Algorithms*
Equipment Design
Equipment Failure Analysis
Head / anatomy & histology*
Head / physiology*
Head Movements / physiology*
Humans
Imaging, Three-Dimensional / instrumentation*
Imaging, Three-Dimensional / methods*
Reproducibility of Results
Self-Help Devices*
Sensitivity and Specificity