地上据置型レーザスキャナを用いた地形計測のためのフィルタリング手法に関する研究

DOI Web Site 被引用文献4件 参考文献13件 オープンアクセス
  • 横山 大
    東京電機大学大学院理工学研究科応用システム工学専攻

書誌事項

タイトル別名
  • Development of Filtering Method for Topographic Surveying by Terrestrial Laser Scanner
  • チジョウ スエオキガタ レーザスキャナ オ モチイタ チケイ ケイソク ノ タメ ノ フィルタリング シュホウ ニ カンスル ケンキュウ

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説明

Laser scanner has been receiving more attention as a useful tool for real-time 3D data acquisition, and many applications such as city modeling, DTM generation, monitoring electrical power lines and detection of forest areas were proposed. However, effective filtering for distinguish on- and off-terrain points from point cloud 3D data collected by airborne laser scanner is still issues.<BR>The paper describes a robust filtering method from a view point of topographic surveying using a terrestrial laser scanner. The method is based on flatness within 0.3×0.3m. Flat area (ground surface, wall of buildings, etc.) and non-flat area (trees, bushes, windows, sky, etc.) are classified using surface flatness, and non-flat areas are interpolated using morphological procedure. The filtering methods show very robust results, and the most remarkable point of this filtering method is its ability to obtain break-line.

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