Upcoming Courses

go to course
User-Centred Design - Module 3
74% booked. Starts in 21 days
 
 

Featured chapter

Marc Hassenzahl explains the fascinating concept of User Experience and Experience Design. Commentaries by Don Norman, Eric Reiss, Mark Blythe, and Whitney Hess

User Experience and Experience Design !

 
 

Our Latest Books

 
 
The Social Design of Technical Systems: Building technologies for communities. 2nd Edition
by Brian Whitworth and Adnan Ahmad
start reading
 
 
 
 
Gamification at Work: Designing Engaging Business Software
by Janaki Mythily Kumar and Mario Herger
start reading
 
 
 
 
The Social Design of Technical Systems: Building technologies for communities
by Brian Whitworth and Adnan Ahmad
start reading
 
 
 
 
The Encyclopedia of Human-Computer Interaction, 2nd Ed.
by Mads Soegaard and Rikke Friis Dam
start reading
 
 

Nektarios Paisios

Add description
Rename / change spelling
Add publication
 

Publications by Nektarios Paisios (bibliography)

 what's this?
2011
 
Edit | Del

Paisios, Nektarios, Rubinsteyn, Alex, Vyas, Vrutti and Subramanian, Lakshminarayanan (2011): Recognizing currency bills using a mobile phone: an assistive aid for the visually impaired. In: Proceedings of the 2011 ACM Symposium on User Interface Software and Technology 2011. pp. 19-20.

Despite the rapidly increasing use of credit cards and other electronic forms of payment, cash is still widely used for everyday transactions due to its convenience, perceived security and anonymity. However, the visually impaired might have a hard time telling each paper bill apart, since, for example, all dollar bills have the exact same size and, in general, currency bills around the world are not distinguishable by any tactile markings. We propose the use of a broadly available tool, the camera of a smart-phone, and an adaptation of the SIFT algorithm to recognize partial and even distorted images of paper bills. Our algorithm improves memory efficiency and the speed of SIFT key-point classification by using a k-means clustering approach. Our results show that our system can be used in real-world scenarios to recognize unknown bills with a high accuracy.

© All rights reserved Paisios et al. and/or ACM Press

 
Edit | Del

Paisios, Nektarios, Rubinsteyn, Alex, Subramanian, Lakshminarayanan, Tierney, Matt and Vyas, Vrutti (2011): Tracking indoor location and motion for navigational assistance. In: Proceedings of the 2011 ACM Symposium on User Interface Software and Technology 2011. pp. 83-84.

Visually impaired people have a harder time remembering their way around complex unfamiliar buildings, whilst obtaining the help of a sighted guide is not always possible or desirable. By sensing the users location and motion, however, mobile phone software can provide navigational assistance in such situations, obviating the need of human guides. We present a simple to operate and highly usable mobile navigational guide that uses Wi-Fi and accelerometer sensors to help the user repeat paths that were already walked once.

© All rights reserved Paisios et al. and/or ACM Press

 
Add publication
Show list on your website
 

Join our community and advance:

Your
Skills

Your
Network

Your
Career

 
Join our community!
 
 
 

Changes to this page (author)

05 Apr 2012: Added
05 Apr 2012: Modified

Page Information

Page maintainer: The Editorial Team
URL: http://www.interaction-design.org/references/authors/nektarios_paisios.html

Upcoming Courses

go to course
User-Centred Design - Module 3
74% booked. Starts in 21 days
 
 

Featured chapter

Marc Hassenzahl explains the fascinating concept of User Experience and Experience Design. Commentaries by Don Norman, Eric Reiss, Mark Blythe, and Whitney Hess

User Experience and Experience Design !

 
 

Our Latest Books

 
 
The Social Design of Technical Systems: Building technologies for communities. 2nd Edition
by Brian Whitworth and Adnan Ahmad
start reading
 
 
 
 
Gamification at Work: Designing Engaging Business Software
by Janaki Mythily Kumar and Mario Herger
start reading
 
 
 
 
The Social Design of Technical Systems: Building technologies for communities
by Brian Whitworth and Adnan Ahmad
start reading
 
 
 
 
The Encyclopedia of Human-Computer Interaction, 2nd Ed.
by Mads Soegaard and Rikke Friis Dam
start reading