On the manual editing for DEM generation with airborne LiDAR

Hsin Yu Ho*, Da Ko Chen, Tian-Yuan Shih, Wei Chen Hsu, Jin King Liu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In the process of producing digital elevation model with airborne LiDAR, different procedures are required for products of different specified level. When producing products higher than level two, it requires manual editing to assure the correctness. In this study, several issues of manual editing are investigated. Ten map-sheets covering five major land-cover types are selected for the comparison. The area of each map-sheet is about 2.5 km by 2.5 km. Preliminary results show that automatic filtering with proper selection of parameters specified for different part of the map may have an effect of saving 20% of time for subsequent manual editing. For the same map-sheets, manual editing by different operators may produce different results and the time required is significantly different. In general, the height difference of the DEMs from two individuals gives a standard deviation of 25 cm.

Original languageEnglish
Title of host publication28th Asian Conference on Remote Sensing 2007, ACRS 2007
Pages2040-2045
Number of pages6
StatePublished - 1 Dec 2007
Event28th Asian Conference on Remote Sensing 2007, ACRS 2007 - Kuala Lumpur, Malaysia
Duration: 12 Nov 200716 Nov 2007

Publication series

Name28th Asian Conference on Remote Sensing 2007, ACRS 2007
Volume3

Conference

Conference28th Asian Conference on Remote Sensing 2007, ACRS 2007
CountryMalaysia
CityKuala Lumpur
Period12/11/0716/11/07

Keywords

  • Filtering
  • Land-cover type
  • Manual editing

Cite this

Ho, H. Y., Chen, D. K., Shih, T-Y., Hsu, W. C., & Liu, J. K. (2007). On the manual editing for DEM generation with airborne LiDAR. In 28th Asian Conference on Remote Sensing 2007, ACRS 2007 (pp. 2040-2045). (28th Asian Conference on Remote Sensing 2007, ACRS 2007; Vol. 3).