Key technologies analysis of airborne LiDAR in high accuracy tidal flats DEM production

doi:10.13474/j.cnki.11-2246.2019.0192

Abstract

Abstract:

LiDAR can quickly obtain three-dimensional geometric information of the surface directly. Meanwhile, LiDAR has the great advantages of all-weather, active observing and certain penetration between the surface features gap. In this paper, LiDAR surveying and mapping work experience of Ningbo tidal flats is summarized. Firstly, the superiority of airborne LiDAR technology in tidal flats surveying and mapping is introduced. Then, on the basis of the data processing flow of LiDAR point, the emphasis is focused on key technologies of high precision DEM production. Finally, the accuracy evaluation of DEM products is carried out.

Key words: airborne LiDAR ranging, point cloud classification, DEM, tidal flats

CLC Number:

P237

WEN Xuedong, LI Junfeng, LIN Yun. Key technologies analysis of airborne LiDAR in high accuracy tidal flats DEM production[J]. 测绘通报, 2019, 0(6): 92-95.

References

[1] DANUFSKY T, COLWELL M A. Winter shorebird commun-ities and tidal flat characteristics at Humboldt Bay, California[J]. The Condor, 2003, 105(1):117-129.
[2] THIEBES B, WANG J, BAI S, et al. Terrestrial laser scanning of tidal flats——a case study in Jiangsu province, China[J]. Journal of Coastal Conservation, 2013, 17(4):813-823.
[3] 楼燕敏,吴迪.机载LiDAR技术在浙江省滩涂海岸测量中的应用研究[J].测绘通报,2012(12):47-50.
[4] ZHANG L, MA H, WU J. Utilization of LiDAR and tidal gauge data for automatic extracting high and low tide lines[J]. Journal of Remote Sensing, 2012, 16(2):405-416.
[5] 卢晓燕,曾金年.浙江省滩涂资源的动态变化分析[J].海洋学研究,2006,24(S0):62-72.
[6] 王刚.沿海滩涂保护法律问题研究[D].青岛:中国海洋大学,2013.
[7] STOCKDONF H F, SALLENGER J A H, LIST J H, et al. Estimation of shoreline position and change using airborne topographic LiDAR data[J]. Journal of Coastal Research, 2002,18(3):502-513.
[8] 张小红.机载激光雷达测量技术理论与方法[M].武汉:武汉大学出版社,2007.
[9] LEFSKY M A, COHEN W B, ACKER S A, et al. LiDAR remote sensing of the canopy structure and biophysical properties of douglas-fir western hemlock forests[J].Remote Sensing of Environment, 1999, 70(3):339-361.
[10] ZHANG K, CHEN S, WHITMAN D,et al. A progressive morphological filter for removing nonground measurements from airborne LiDAR data[J]. IEEE Transactions Geoscience and Remote Sensing, 2003, 41(4):872-882.
[11] ACKERMAN F. Airborne laser scanning-present status and future expectation[J].ISPRS Journal of Photogrammetry and Remote Sensing,1999,54(2/3):65-67.
[12] 史照良,曹敏.基于LiDAR技术的海岛礁、滩涂测绘研究[J].测绘通报,2007(5):49-53.
[13] 刘经南,张小红.激光扫描测高技术的发展与现状[J].武汉大学学报(信息科学版),2003,28(2):132-137.
[14] PERSSON Å, SÖDERMAN U, TÖPEL J, et al. Visualization and analysis of full-waveform airborne laser scanner data[J]. International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, 2005, 36(3/W19):103-108.
[15] 林祥国,张继贤.架空输电线路机载激光雷达点云电力线三维重建[J].测绘学报,2016,45(3):347-353.