A Virtual Blind Cane Using a Line Laser-Based Vision System and an Inertial Measurement Unit

Quoc Dang, Youngjoon Chee, Duy Pham, Young Suh

doi:10.3390/s16010095

A Virtual Blind Cane Using a Line Laser-Based Vision System and an Inertial Measurement Unit

DOI Web Site 被引用文献1件

Quoc Dang

Department of Electrical Engineering, University of Ulsan, Namgu, Ulsan 680-749, Korea
Youngjoon Chee

Department of Electrical Engineering, University of Ulsan, Namgu, Ulsan 680-749, Korea
Duy Pham

Department of Electrical Engineering, University of Ulsan, Namgu, Ulsan 680-749, Korea
Young Suh

Department of Electrical Engineering, University of Ulsan, Namgu, Ulsan 680-749, Korea

書誌事項

公開日: 2016-01-13

権利情報

https://creativecommons.org/licenses/by/4.0/

DOI

10.3390/s16010095

公開者: MDPI AG

説明

<jats:p>A virtual blind cane system for indoor application, including a camera, a line laser and an inertial measurement unit (IMU), is proposed in this paper. Working as a blind cane, the proposed system helps a blind person find the type of obstacle and the distance to it. The distance from the user to the obstacle is estimated by extracting the laser coordinate points on the obstacle, as well as tracking the system pointing angle. The paper provides a simple method to classify the obstacle’s type by analyzing the laser intersection histogram. Real experimental results are presented to show the validity and accuracy of the proposed system.</jats:p>