A real-time method for DSM generation from airborne LiDAR data

Deming Kong, Lijun Xu, Xiaolu Li, Shuyang Li

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

8 Citations (Scopus)


This paper presents a new real-time method for the DSM (Digital Surface Model) generation from the airborne LiDAR (Light Detection And Ranging) data. In this method, the positions and elevation values of the laser footprints in each obtained scanning line are firstly transformed into a regular discrete array by the operations of linearization and gridding. After that, mathematical morphology is implemented to the array to obtain the digital models of the ground and objects on ground surface. In the airborne LiDAR scanning process, while the scanning lines are continually obtained, the digital models in the scanning lines are real-timely generated and displayed. Finally, when the scanning process is completed, the DSM of the whole acquired point cloud is attained by combining the digital models in all scanning lines. The proposed method is validated by using real airborne LiDAR data.

Original languageEnglish
Title of host publication2013 IEEE International Instrumentation and Measurement Technology Conference
Subtitle of host publicationInstrumentation and Measurement for Life, I2MTC 2013 - Proceedings
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages4
ISBN (Print)9781467346221
Publication statusPublished - 2013
Externally publishedYes
EventIEEE International Instrumentation and Measurement Technology Conference 2013 - Minneapolis, United States of America
Duration: 6 May 20139 May 2013
Conference number: 30th
https://ieeexplore.ieee.org/xpl/conhome/6548505/proceeding (Proceedings)


ConferenceIEEE International Instrumentation and Measurement Technology Conference 2013
Abbreviated titleI2MTC 2013
Country/TerritoryUnited States of America
OtherThe conference theme for 2013 is “Instrumentation and Measurement for Life”.
Internet address


  • DSM (Digital Surface Model) generation
  • mathematical morphology
  • Real-time LiDAR (Light Detection And Ranging) data processing
  • terrain detection

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