The development of a high precision terrestrial laser scanner calibration range at USQ

Ledger, Allen (2011) The development of a high precision terrestrial laser scanner calibration range at USQ. [USQ Project]

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Abstract

Spatial science firms of today are required to deliver reliable and highly accurate data. Developing technologies have provided spatial science firms with the tools to deliver this data. The latest tool that the spatial scientist can use is the terrestrial laser scanner.

Terrestrial laser scanners are the latest development in the spatial science industry. They are becoming more popular throughout the industry and new applications for their use are constantly being developed. One of the most popular applications is to remotely capture large amounts of data in a short space of time or from locations where it would be dangerous for a human to occupy. For clients to have confidence in the spatial science profession it needs to have a testing procedure that ensures instruments are measuring correctly. It is the purpose of this research project to conduct investigations into developing a calibration range and calibration procedure at the University of Southern Queensland.

There are many design criteria that need to be considered when developing a calibration range. The first major criteria are to have targets located at high and low vertical angles for accurate estimation of the collimation axis error and a vertical angle correction. Having targets in a 360 degree circle around each scanner station is the second design criteria, which is used to calculate a horizontal angle correction. For the calculation of the scale error, multiple distance ranges are required. Finally at least two (2) scanner stations are required to be able to perform the calibration. This project will develop a calibration range at USQ that can be used to estimate corrections to TLS instruments.

The results of this project have found appropriate station geometry that can be used for the calibration of terrestrial laser scanners. It has found the optimum target geometry for an outdoor calibration range. Finally it has determined that the USQ calibration range is suitable for the calibration of terrestrial laser scanners.


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Item Type: USQ Project
Refereed: No
Item Status: Live Archive
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Surveying and Land Information
Supervisors: Chong, Albert
Date Deposited: 20 Dec 2012 01:50
Last Modified: 03 Jul 2013 01:36
Uncontrolled Keywords: terrestrial laser scanner, calibration range
Fields of Research : 09 Engineering > 0909 Geomatic Engineering > 090903 Geospatial Information Systems
URI: http://eprints.usq.edu.au/id/eprint/22549

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