Improving Mobility for the Visually Impaired: A Wearable Indoor Positioning System Based on Visual Markers
| Autor: | Chih-Wei Lee, Shanq-Jang Ruan, Oliver Christen, Edwin Naroska, Peter Chondro |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
050210 logistics & transportation
Positioning system Computer science business.industry 05 social sciences ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Wearable computer 020206 networking & telecommunications 02 engineering and technology Computer Science Applications Visualization Human-Computer Interaction Indoor positioning system Hardware and Architecture Mobile phone Obstacle 0502 economics and business 0202 electrical engineering electronic engineering information engineering Computer vision Ultrasonic sensor Artificial intelligence Electrical and Electronic Engineering business Decoding methods |
| Zdroj: | IEEE Consumer Electronics Magazine. 7:12-20 |
| ISSN: | 2162-2256 2162-2248 |
| Popis: | This article presents an indoor positioning system based on camera and ultrasonic sensors mounted on a pair of glasses that is specifically designed for visually impaired individuals. The proposed system incorporates a recognition algorithm that is able to recognize certain color-coded markers with a detectable range of 15 m in real time on a quad-core embedded processor. In addition, microultrasonic transducers are implemented to detect obstacles in front of the glasses. The positioning system and obstacle detection can be adjusted to work independently or in parallel. The sensor data are then transmitted to a mobile phone to be processed. The results show that the proposed system is able to recognize markers and detect obstacles with low complexity and power consumption. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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