A study of assistive technologies for visually impaired.

From the past few years, The navigation systems are advancing with every possible technology. Researchers are do-ing there best to improve the navigation system and guidance systems. These advancement in the navigation systems with some modification can be helpful to the visually impaired people to navigate in there day to day life. This paper gives a review of the better technologies present in the society to help the visually impaired. This paper covers the use of different technologies like AI(artificial intelligence),Deep learning, IOT etc in creating useful gadgets for the visually impaired people. Traditional approaches such as: cane or guide dog, And there are gadgets such as infrared based cane or ultrasonic blind stick with are limited by the distance of identifying the objects. And there are some gadgets which are microcontroller based and microprocessor based. Some of the proposed systems uses the computer vision for object detection, character recognition, face detection etc. There are wide range of gadgets involving various technologies to help the visually impaired. The review covers various technologies used in different proposed systems for the visually impaired people and help to develop a better navigating device for visually impaired. [ABSTRACT FROM AUTHOR]