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This paper outlines an obstacle recognition system for the blind people using the Radio-frequency identification (RFID). In order to walk without being accompanied, people with visual impairment use touching clues such as canes. The main concern of blind people is to be able to detect any type of obstacle within their surroundings. For that, several techniques have been developed such as Differential Global Positioning System (DGPS) or Radio-frequency identification (RFID). Previous experiences of different researches have proven the limits of the DGPS in localizing the position of people and obstacles in different situations, while the RFID is being developed to better meet the needs of the visually impaired people. This paper aims on developing a blind recognition system through canes using RFID and covers a brief insight of relevant work about the RFID system. The review of RFID system introduces the technical features of this utility and presents the concept of research being developed in smart canes for blind people. The information such as the costs of the components of the suggested RFID-based system is provided.