PROBLEM TO BE SOLVED: To provide a curve section identification system capable of improving the accuracy in identifying curve section.SOLUTION: The curve section identification system is constituted by including: a feature point acquisition section that acquires a feature point which represents a feature point on a road; a line segment acquisition section that acquires a line segment which extends from the interest feature point to another feature point or to a point on the line, which connects neighboring feature points before and after the interest feature point; a curve section identification section that, when a crossing angle of the line segments is larger than a criteria, identifies a curve section based on the interest feature point; and a line segment length adjustment section that changes the length of the line segment based on the density of the feature points on the road.SELECTED DRAWING: Figure 4
【課題】カーブ区間の特定精度を向上させること。【解決手段】道路の形状を示す形状点を取得する形状点取得部と、着目した前記形状点から、他の前記形状点または隣接する前記形状点同士を結ぶ線上の点まで延びる前記線分を、着目した前記形状点の前後で取得する線分取得部と、前記線分の交差角が判定基準より大きい場合に、着目した前記形状点に基づいてカーブ区間を特定するカーブ区間特定部と、前記道路上の前記形状点の密度に基づいて前記線分の長さを変化させる線分長調整部と、を備えるカーブ区間特定システムを構成する。【選択図】図4
CURVE SECTION IDENTIFICATION SYSTEM, CURVE SECTION IDENTIFICATION METHOD AND CURVE SECTION IDENTIFICATION PROGRAM
カーブ区間特定システム、カーブ区間特定方法およびカーブ区間特定プログラム
2016-12-22
Patent
Elektronische Ressource
Japanisch
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