画像処理を用いた携帯型視覚障害者歩行支援システムの検討(<論文小特集>ヒューマンインフォメーション)

概要

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This paper describes a portable traveling support system that uses image processing to aid the visually impaired. We have already previously proposed a portable navigation system for the visually imparied. However, there are some places where this system is unable to provide the proper guidance. Sincer the travel direction of the user of this system is measured by a terrestrial magnetic sensor, there is a possibility that the wrong direction is measured due to a distortion of the terrestrial magnetism caused by vehicles, etc. Road markings, e.g., pedestrian crossings, white lines of roadways are reliable information that can be used to measure the correct direction. Furthermore, landmarks, e.g., electric poles, traffic-control signs and postal boxes, are also useful for a traveler to confirm his position. Therefore, we applied image processing to our portable navigation system to make it more reliable.
2001-11-01