A decision-theoretic generalization of on-line learning and an application to boosting
Journal of Computer and System Sciences - Special issue: 26th annual ACM symposium on the theory of computing & STOC'94, May 23–25, 1994, and second annual Europe an conference on computational learning theory (EuroCOLT'95), March 13–15, 1995
The Ubiquitous Camera: An In-Depth Study of Camera Phone Use
IEEE Pervasive Computing
A wearable face recognition system for individuals with visual impairments
Proceedings of the 7th international ACM SIGACCESS conference on Computers and accessibility
Improving Static Print Design Readability Using Mobile Reading Filters
UAHCI '09 Proceedings of the 5th International Conference on Universal Access in Human-Computer Interaction. Addressing Diversity. Part I: Held as Part of HCI International 2009
Proceedings of the 11th international ACM SIGACCESS conference on Computers and accessibility
MobileAccessibility: camera focalization for blind and low-vision users on the go
ACM SIGACCESS Accessibility and Computing
Blind-folded recognition of bank notes on the mobile phone
ACM SIGGRAPH 2010 Posters
VizWiz: nearly real-time answers to visual questions
UIST '10 Proceedings of the 23nd annual ACM symposium on User interface software and technology
Proceedings of the 28th ACM International Conference on Design of Communication
Anti-blur feedback for visually impaired users of smartphone cameras
Proceedings of the 12th international ACM SIGACCESS conference on Computers and accessibility
Real-time object recognition using mobile devices
Proceedings of the 13th International Conference on Human Computer Interaction with Mobile Devices and Services
Recognizing currency bills using a mobile phone: an assistive aid for the visually impaired
Proceedings of the 24th annual ACM symposium adjunct on User interface software and technology
The proceedings of the 13th international ACM SIGACCESS conference on Computers and accessibility
Helping visually impaired users properly aim a camera
Proceedings of the 14th international ACM SIGACCESS conference on Computers and accessibility
GIST: a gestural interface for remote nonvisual spatial perception
Proceedings of the 26th annual ACM symposium on User interface software and technology
| Hi-index | 0.00 |
In this paper we present a camera phone-based currency reader for the visually impaired that can identify the value of U.S. paper currency. Currently, U.S. paper currency can only be identified visually and this situation will continue for a foreseeable future. Our solution harvests the imaging and computational power on camera phones to read these bills. Considering it is impractical for the visually impaired to capture high quality image, our currency reader performs real time processing for each captured frame as the camera approaches the bill. We developed efficient background subtraction and perspective correction algorithms and trained our currency reader using an efficient Ada-boost framework. Our currency reader processes 10 frames/second and achieves a false positive rate of approximately 1/10000. Major smart phone platforms, including Symbian and Windows Mobile, are supported.