赤外線放射カメラの熱画像による車両の走行状態の推定及び車両の自動判別 : 熱画像を用いた道路交通情報の計量化 その1

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  • 梅干野 晁
    東京工業大学大学院総合理工学研究科社会開発工学専攻
  • 飯野 秋成
    東京工業大学大学院総合理工学研究科社会開発工学専攻

書誌事項

タイトル別名
  • ESTIMATION OF AUTOMOBILE TRAFFIC CONDITIONS AND A SUPERVISED METHOD FOR EXTRACTING AUTOMOBILES : Quantification of automobile traffic information by thermal image No.1
  • 赤外線放射カメラの熱画像による車両の走行状態の推定及び車両の自動判別--熱画像を用いた道路交通情報の計量化-1-
  • セキガイセン ホウシャ カメラ ノ ネツ ガゾウ ニ ヨル シャリョウ ノ ソ

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抄録

This study deals with methods for quantification of automobile traffic information from thermal images remotely sensed by means of a infrared thermal camera. The images of a crossing of principal roads were acquired at one-hour intervals on clear summer and winter days. Upon digital image processing, it was clear that surface temperature of roads varies with the length of time traffic is stationary. The surface temperature of roads was calculated in various values of ratio of the stationary time, and the ratio was estimated by superimposing the calculated values on the measured one. As a result, the estimated value was in good agreement with the one obtained .from videotape which had recorded automobile traffic conditions. In addition, a supervised method for extracting automobiles on a road from thermal images was presented.

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