Research on geo-referencing methodology of point cloud data

Hyungsig Cho, Honggyoo Sohn, Soohee Han, Il Suk Park

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

Abstract

The Terrestrial Laser Scanner (TLS) has been widely used in many engineering fields because it provides us with direct measurement of 3D information of objects with high resolution and reliable accuracy. The TLS measures distances and angles from the sensor to the reflecting target, and only the relative positions are recorded. Thus, geo-referencing of point cloud data is required to provide the products with their absolute position in the real world. In the past, geo-referencing of point cloud data was achieved by using a total station. Firstly, the surveyor conducted a control survey by using a GPS, and set up the total station at the control point. The surveyor attached the special target on the surface of the object, and measured the absolute position of it. Then, the geo-referencing was conducted through post-processing. However, this conventional process requires too much time, and errors in total station are propagated to the coordinates of the point cloud data. In the current study, we suggest a new methodology which simplifies the geo-referencing process by integrating the GPS and targets. It is expected that a great deal of time and cost can be saved by implementing our suggested methodology.

Original languageEnglish
Title of host publication32nd Asian Conference on Remote Sensing 2011, ACRS 2011
Pages1449-1450
Number of pages2
Publication statusPublished - 2011
Event32nd Asian Conference on Remote Sensing 2011, ACRS 2011 - Tapei, Taiwan, Province of China
Duration: 2011 Oct 32011 Oct 7

Publication series

Name32nd Asian Conference on Remote Sensing 2011, ACRS 2011
Volume2

Other

Other32nd Asian Conference on Remote Sensing 2011, ACRS 2011
CountryTaiwan, Province of China
CityTapei
Period11/10/311/10/7

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

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  • Cite this

    Cho, H., Sohn, H., Han, S., & Park, I. S. (2011). Research on geo-referencing methodology of point cloud data. In 32nd Asian Conference on Remote Sensing 2011, ACRS 2011 (pp. 1449-1450). (32nd Asian Conference on Remote Sensing 2011, ACRS 2011; Vol. 2).