Obstacle Detection and Warning System for Visually Impaired People Based on Smartphone

Proposed system provides detection of obstacle and classification system in a real-time, used to assist visually impaired people to introduce safely within indoor and outdoor environments, handling by the smartphone device. A blind person walking in an unfamiliar area they face so many problems. This issue may be of true obstacles or identifying potholes, bumps in his way. In the past few years, there are various ETA's have been developed for visually impaired people Out of all ETA’s available, they are not affordable for blind persons and most of these ETA's focuses on only one problem i.e. Either potholes detections or obstacle in front of the user. And they do not provide information about the environment in which user is present. In proposed system, use of Ultrasonic sensor, camera, and smartphone for detection the difficulties in the path of visually impaired persons. The detection algorithm is based on the information collected from an ultrasonic sensor in the smartphone. The output gives to the user is in the form of vibration and audio. The intensity of the output depends on the distance of an object from the user.