POINT CLOUD DATA PROCESSING SYSTEM

To provide a point cloud data processing system that facilitates maintenance of a slope surface.SOLUTION: A point cloud data processing system includes: means that performs first extraction processing (step S11) of extracting point cloud data in a rectangle B including a road geometric line A from p...

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Hauptverfasser:	NAKAMURA KENJI, TANAKA SHIGENORI, IMAI RYUICHI, TANAKA YOSHIRO, NAKAHARA MASAYA, OTSUKI SHOJI, UMEHARA YOSHIMASA, KAWAMURA YOSHIKAZU, NIIMA YUSUKE, TSUKADA YOSHINORI, HIRANO YORITOSHI, FUJIWARA TETSURO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS GYROSCOPIC INSTRUMENTS HYDRAULIC ENGINEERING MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SOIL SHIFTING SURVEYING TESTING UNDERGROUND OR UNDERWATER STRUCTURES
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Beschreibung
Zusammenfassung:	To provide a point cloud data processing system that facilitates maintenance of a slope surface.SOLUTION: A point cloud data processing system includes: means that performs first extraction processing (step S11) of extracting point cloud data in a rectangle B including a road geometric line A from point cloud data T acquired by a point cloud data acquisition device 10; means that performs removal processing (step S12) of removing point cloud data in a range C (point cloud data of a road) from the point cloud data within the rectangle B; means that performs projection processing (steps S13 and S14) of projecting the point cloud data after the removal processing to a two-dimensional plane horizontally crossing the road geometric line A; means that performs second extraction processing (step S15) of extracting point cloud data satisfying a predetermined condition as point cloud data of a slope surface possibility from the point cloud data after the projection processing; and means that performs third extraction processing (step S16) of extracting the point cloud data of the slope surface by a region expansion method having a start point G as an initial point from the extracted point cloud data of the slope surface possibility.SELECTED DRAWING: Figure 2 【課題】法面の維持管理をし易くすることができる点群データ処理システムを提供する。【解決手段】点群データ取得装置１０によって取得した点群データＴから、道路線形Ａを含む矩形Ｂ内の点群データを抽出する第一抽出処理（ステップＳ１１）を行う手段と、矩形Ｂ内の点群データから、範囲Ｃの点群データ（道路の点群データ）を除去する除去処理（ステップＳ１２）を行う手段と、除去処理がなされた後の点群データを、道路線形Ａを横断する二次元平面に投影する投影処理（ステップＳ１３及びＳ１４）を行う手段と、投影処理がなされた後の点群データから、所定の条件を満たす点群データを法面候補の点群データとして抽出する第二抽出処理（ステップＳ１５）を行う手段と、抽出された法面候補の点群データから、開始点Ｇを起点とする領域拡張法により、法面の点群データを抽出する第三抽出処理（ステップＳ１６）を行う手段と、を具備する。【選択図】図２