Abstract
The present paper proposes a smartphone-camera-based system to assist visually impaired users in recalling their memories related to important locations, called spots, that they visited. The memories are recorded as voice memos, which can be played back when the users return to the spots. Spot-to-spot correspondence is determined by image matching based on the scale invariant feature transform. The main contribution of the proposed system is to allow visually impaired users to associate arbitrary voice memos with arbitrary spots. The users do not need any special devices or systems except smartphones and do not need to remember the spots where the voice memos were recorded. In addition, the proposed system can identify spots in environments that are inaccessible to the global positioning system. The proposed system has been evaluated by two experiments: image matching tests and a user study. The experimental results suggested the effectiveness of the system to help visually impaired individuals, including blind individuals, recall information about regularly-visited spots.
Highlights
In 2014, the World Health Organization estimated the number of visually impaired individuals to be at approximately 285 million worldwide [1]
The present paper proposed a spot reminder system to assist visually impaired users in recalling memories related to spots that they visited
The memories were recorded as voice memos, which were able to be played back when the user returned to the spots
Summary
In 2014, the World Health Organization estimated the number of visually impaired individuals to be at approximately 285 million worldwide [1]. Many are trained by sighted assistants to move along their daily routes, for example, from home to the office. During such training, they are often taught information about important locations, called spots, along the routes. They are often taught information about important locations, called spots, along the routes If they remember the information, their quality of life (QOL) would be maintained. Otherwise, they would be forced to suffer inconvenience. It is necessary to build an assistive system to help a visually impaired user recall information about environments
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