Grouping Based on Projective Geometry Constraints and Uncertainty
ICCV '98 Proceedings of the Sixth International Conference on Computer Vision
Road feature detection and estimation
Machine Vision and Applications
Autonomicity An Antidote for Complexity?
CSBW '05 Proceedings of the 2005 IEEE Computational Systems Bioinformatics Conference - Workshops
Portable and Mobile Systems in Assistive Technology
ICCHP '08 Proceedings of the 11th international conference on Computers Helping People with Special Needs
Real-time walk light detection with a mobile phone
ICCHP'10 Proceedings of the 12th international conference on Computers helping people with special needs
Haptic-GIS: exploring the possibilities
SIGSPATIAL Special
The proceedings of the 13th international ACM SIGACCESS conference on Computers and accessibility
(Computer) vision without sight
Communications of the ACM
Camera-Based signage detection and recognition for blind persons
ICCHP'12 Proceedings of the 13th international conference on Computers Helping People with Special Needs - Volume Part II
Outdoor situation recognition using support vector machine for the blind and the visually impaired
PRICAI'12 Proceedings of the 12th Pacific Rim international conference on Trends in Artificial Intelligence
Intelligent situation awareness on the EYECANE
PRICAI'12 Proceedings of the 12th Pacific Rim international conference on Trends in Artificial Intelligence
GIST: a gestural interface for remote nonvisual spatial perception
Proceedings of the 26th annual ACM symposium on User interface software and technology
Uncovering information needs for independent spatial learning for users who are visually impaired
Proceedings of the 15th International ACM SIGACCESS Conference on Computers and Accessibility
Hi-index | 0.02 |
Urban intersections are the most dangerous parts of a blind or visually impaired person's travel. To address this problem, this paper describes the novel "Crosswatch" system, which uses computer vision to provide information about the location and orientation of crosswalks to a blind or visually impaired pedestrian holding a camera cell phone. A prototype of the system runs on an off-the-shelf Nokia camera phone in real time, which automatically takes a few images per second, uses the cell phone's built-in computer to analyze each image in a fraction of a second and sounds an audio tone when it detects a crosswalk. Tests with blind subjects demonstrate the feasibility of the system and its ability to provide useful crosswalk alignment information under real-world conditions.