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基于数学形态学的LiDAR数据滤波新方法 被引量：16

A New Filtering Method for LiDAR Data Based on Mathematic Morphological Approach
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摘要 数学形态学滤波是从激光雷达点云数据中识别地面点、创建数字高程模型的一种重要方法。在分析现有滤波方法的优劣性以及数学形态学滤波方法存在的问题基础上,提出一种新的具有一定自适应性的数学形态学滤波算法。该方法通过分析LiDAR数据的特点,利用形态学算子提取原始点云数据的空白区域,进行精确的重采样生成DSM;然后将DSM多尺度形态学滤波的结果作为初始的DEM,分析由于局部地形突变导致可能存在误分类区域;最后提取该区域边缘外的地面点作为新的种子点,利用最小二乘平面拟合的方法进行区域生长搜索误分类地面点,从而提高分类精度。试验结果表明该方法能够有效识别地面点和地物点,并且保留地形的细节信息。
作者 罗伊萍 姜挺 王鑫 张锐 罗胜
机构地区 信息工程大学测绘学院
出处 《测绘通报》 CSCD 北大核心 2011年第3期15-19,共5页 Bulletin of Surveying and Mapping
关键词 激光雷达 滤波 数学形态学滤波 数字高程模型
分类号 P237 [天文地球—摄影测量与遥感]
  • 相关文献

参考文献9

  • 1KRAUS dels in Data [ J ] Sensing, K, PFEIFER N. Determination of Terrain MoWooded Areas with Airborne Laser Scanner ISPRS Journal of Photogrammetry and Remote 1998, 53(4) :193-203.
  • 2PFEIFER N, STADLER P. Derivation of Digital Terrain Models in the SCOP + + Environment [ C ]//Proceedings of OEEPE Workshop on Airborne Laser Scanning and In- terferometric SAR for Detailed Digital Elevation Models. Stockholm : [ s. n. ] , 2001.
  • 3ZHANG K, CHEN S C, WHITMAN D, et al. A Progressive Morphological Filter for Removing Nonground Measurement from LiDAR Data [ J ]. IEEE Transactions on Geoscience and Remote Sensing, 2003, 41 (4) : 872-882.
  • 4CHEN QGONG P, BALDOCCHI D, et al. Filtering Airborne Laser Scanning Data with Morphological Methods [ J ]. Photogrammetric Engineering and Remote Sensing, 2007, 73(2) :175-185.
  • 5张熠斌,隋立春,曲佳,柳艳.基于数学形态学算法的机载LiDAR点云数据快速滤波[J].测绘通报,2009(5):16-18. 被引量：26
  • 6ELMQVIST M JUNGERT E, LANTZ F, et al. Terrain Modelling and Analysis Using Laser Scanner Data [ J ]. International Archives of Photogrammetry and Remote Sensing, 2001, 34(3/W4) : 219-224.
  • 7BROVELLI M A, CANNATA M. Digital Terrain Model Reconstruction in Urban Areas from Airborne Laser Scanning Data: the Method and an Example of the Town of Pavia( Northern Italy) [ J ]. Computers & Geoseiences, 2004, 30(4) :325-331.
  • 8黄先锋,李卉,王潇,张帆.机载LiDAR数据滤波方法评述[J].测绘学报,2009,38(5):466-469. 被引量：97
  • 9SITHOLE G, VOSSELMAN G. Experimental Comparison of Filter Algorithms for Bare-Earth Extraction from Airborne Laser Scanning Point Clouds [ J ].ISPRS Journal of Photogrammetry and Remote Sensing, 2004, 59(1-2) : 85-101.

二级参考文献18

  • 1VOSSELMAN G. Slope Based Filtering of Laser Ahimetry Data [ J ]. International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2000, 33 ( B3 ) :935-942.
  • 2VOSSELMAN G, MAAS H G. Adjustment and Filtering of Raw Laser Altimetry Data[ C ]//TORLEGARD K. Proceeding of OEEPE Workshop on Airborne Laser Scanning and Interferometric SAR for Detailed Digital Elevation Models. Stockholm:[ s. n. ] ,2001:1-3.
  • 3SITHOLE G. Filtering of Laser Altimetry Data Using a Slope Adaptive Filter [ J ]. International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences,2001, 34:203-210.
  • 4ROGGERO M. Airborne Laser Scanning: Clustering in Raw Data[ J]. International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2001,34:227-232.
  • 5ZHANG Keqi, CHEN Shuching Chen, Dean Whitman, et al. A Progressive Morphological Filter for Removing No Ground Measurements From Airborne LIDAR Data [ J ]. IEEE Transactions on Geoscience and Remote Sensing, 2003,41 (4) :872-882.
  • 6VOSSELMAN G. Slope Based Filtering of Laser Altimetry Data[J]. IAPRS, 2000, 33(B3/2): 935-942.
  • 7AXELSSON P E. DEM Generation from Laser Scanner Data Using Adaptive TIN Models[J]. IAPRS, 2000, 33( B4/ 1): 110-117.
  • 8KRAUS K, PFEIFER N. Determination of Terrain Models in Wooded Areas with ALS Data[J]. ISPRS Journal of Photogrammetry & Remote Sensing, 1998, 53: 193-203.
  • 9KILIAN J, HAALA N, ENGLICH M. Capture and Evaluation of Airborne Laser Scanner Data[J]. IAPRS, 1996, 31(B3) : 383-388.
  • 10ZHANG K Q. A Progressive Morphological Filter for Removing Non-ground Measurements from Airborne LiDAR Data[J]. IEEE Transactions on Geoscienee and Remote Sensing, 2003, 41(4): 872-882.

共引文献114

同被引文献130

引证文献16

二级引证文献195

测绘通报
2011年 第3期

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