Abstract
Blind people face many difficulties in obtaining information, communication, and mobility in almost every aspect of their lives. In this project we have developed a low-cost visual aid program called the Haptic Obstacle Detector (HOD) that helps them avoid head-on barriers. Experiments have shown that HOD is able to see complex objects like glass. The thesis project aims to build an accurate and affordable device that helps blind people avoid obstacles around the head area. The device is called a Haptic Obstacle Detector (HOD). The HOD uses an infrared sensor and an ultrasonic sensor to measure the distance between a user and an object within a range of 3m. The results suggest that the Haptic Object Detector is easy to use and shows a promising concept to help the visually impaired avoid obstacles.
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