システム制御情報学会論文誌
Online ISSN : 2185-811X
Print ISSN : 1342-5668
ISSN-L : 1342-5668
画像による駅構内の移動可能領域抽出および距離推定
西部 優奈塩山 忠義呉 海元陳 謙島田 哲夫
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2003 年 16 巻 4 号 p. 151-157

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Train platform is one of the most dangerous place for the blind. This paper presents a method for extracting free area (the region without obstacles) in train platform and estimating the distance to the boundary of free area from an image. First, the input image is segmented by using Gabor filter as well as greyscale information and edge information. Then the image region containing the place where the blind stands is determined as the free area. Next, the boundary of free area is extracted and the vertical lines are extracted, which are then used to determine the distance from the blind to the boundary of free area based on 3D vector analysis.

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