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시각장애인을 위한 상황인지 보조 IoT 장치 및 보행자 길안내 서비스 앱 개발
박세영(Seyoung Park),박주경(Jukyeong Park),류혜림(Healim Ryu),이향인(Hyangin Lee),이경미(Kyoung-Mi Lee) 한국디지털콘텐츠학회 2020 한국디지털콘텐츠학회논문지 Vol.21 No.2
Since the external activities of the visually impaired are still not free, it is urgent to find ways to resolve the inconvenience of movement and to expand the range of external activities. In this paper, we propose an IoT device and a navigation service application that recognizes the situation around the visual impaired and voices it. Ultrasonic sensors in the IoT device detect the presence of objects around them and provide different beeps depending on the location of the object to differentiate the objects proximity. The surrounding objects in the input image through the camera of the IoT device may be recognized by the object recognition algorithm learned by deep learning. The navigation service application provides a customized UI for the visually impaired using voice recognition, TTS, and large icons. The proposed application finds pedestrian paths to the destination, displays all detailed paths on a map, provides voice guidance, and calculates the total walking time.