A Review of Scene Text Recognition Systems for Blind

Abstract

Various portable or wearable assistive systems have been developed by researchers to help blind people in indoor or outdoor environments. In an effort to analyses about the capabilities of existing systems and track research progress, this paper summarizes studies that have been conducted to assist visually impaired people in two categories: electronic navigation aids and scene text recognition systems. It also describes advantages and disadvantages of the methods used in these studies. This review paper is first of its kind to summarize both sensor-based systems and machine vision-based systems for blind people. Further study also extends challenges faced by real-time scene text recognition methods and presents future research directions to overcome them.