1.
図書 |
研究代表者 牧野秀夫
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2.
図書 |
牧野秀夫著
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3.
論文(リポジトリ) |
田野, 英一 ; 前田, 義信 ; 牧野, 秀夫 ; 小西, 孝史 ; 石井, 郁夫
概要:
In order to assist the orientation and mobility of the visually impaired, when walking, using devices such as GPS (Global Positioning System), there should be a capability to automatically provide place name and compass information, in
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spoken format. Our system obtains the place coordinate such as latitude and longitude by means of the GPS and the direction for forward movement by means of a fluxgate compass. The numerical data are transformed to the place name using the place name layer of the geographic information database. In this paper we experimentally considered availability of both place name and crossroad layers. To this end, sighted participants were blind-folded and walked along a given route (about 1 kilometer) using the system. We clarified particularly a reduction in time using the principal components analysis and the discriminant function. This indicated that one layer alone, the place name layer, was in itself sufficient to walk the route, but using multiple layers, which were classified into different categories, one could walk more efficiently. In our system we developed a multi-layer structure in the geographic information database.
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4.
論文(リポジトリ) |
前田, 義信 ; 五十嵐, 晃 ; 田野, 英一 ; 牧野, 秀夫
概要:
In order to identify the key factors involved in pedestrian search behavior, we analyzed experimental data using statistical designs. Firstly a GPS-GIS-based search mechanism was used and search time, together with geographical
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characteristics of the town, luminosity and GPS accuracy with between 25.0m and 61.5m in SPS (Standard Positioning Service) were measured. Then the sense of direction of the subjects was derived from SDQ-S (Sense of Direction Questionnaire-Short Form). Statistical methods of regression and path analysis were applied to the data. Results from the analyses identified geographical properties such as the complexity of the road network and the geographical density of landmarks as being most influential in the pedestrian's search process. The accuracy of the GPS system itself was much less important.
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5.
論文(リポジトリ) |
建守, 大 ; 高橋, 章 ; 石井, 郁夫 ; 今井, 博英 ; 牧野, 秀夫
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6.
論文(リポジトリ) |
山田, 敏史 ; 石井, 郁夫 ; 高橋, 章 ; 今井, 博英 ; 牧野, 秀夫
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7.
論文(リポジトリ) |
若月, 大輔 ; 石井, 郁夫 ; 今井, 博英 ; 高橋, 章 ; 牧野, 秀夫
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8.
論文(リポジトリ) |
長方, 深 ; 廣野, 幹彦 ; 澤田, 経一 ; 牧野, 秀夫 ; 山宮, 士郎
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9.
論文(リポジトリ) |
廣野, 幹彦 ; 澤田, 経一 ; 長方, 深 ; 牧野, 秀夫 ; 山宮, 士郎
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10.
論文(リポジトリ) |
山崎, 重光 ; 牧野, 秀夫 ; 板倉, 篤志 ; 間瀬, 憲一
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