¹School of Remote Sensing and Information Engineering, Wuhan University, Wuhan, China
²The Third Railway Survey and Design institute, Tianjin, China

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Abstract—With favorable penetrability to vegetation, LiDAR data is an important data source to generate high precision DEM for reconnaissance and design of railway. To avoid the limitation of the LiDAR data-processing in keeping terrain feature and to satisfy the demand of the reconnaissance and design, this paper presents a high fidelity DEM production method, which successively uses the specialized software and the variety photogrammetry technology. The large scale results of production have proved that the method is feasible and useable.

Index Terms—Railway survey, airborne LiDAR, filter, digital elevation mode.

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Cite: Lai Xudong, Han Zujie, "High Fidelity DEM Generation Based on LiDAR Data," Journal of Computers vol. 7, no. 8, pp. 2071-2077, 2012.