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Terrestrial laser scanners self-calibration study: datum constraints analyses for network configurations

Mohd Azwan, Abbas and Halim, Setan and Majid, Zulkepli and Chong, Albert Kon Fook and Lau, Chong Luh and Idris, Khairulnizam and Mohd Farid, Mohd Ariff (2015) Terrestrial laser scanners self-calibration study: datum constraints analyses for network configurations. In: Joint International Geoinformation & National Underground Utility Mapping Conference 2015, 28-30 Oct, 2015, Kuala Lumpur, Malaysia.

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Official URL: https://www.jupem.gov.my/v1/en/joint-international...

Abstract

Similar to other electronic instruments, terrestrial laser scanner (TLS) can also inherent with various systematic errors coming from different sources. Self-calibration technique is a method available to investigate these errors for TLS which were adopted from photogrammetry technique. According to the photogrammetry principle, the selection of datum constraints can cause different types of parameter correlations. However, the network configuration applied by TLS and photogrammetry calibrations are quite different, thus, this study has investigated the significant of photogrammetry datum constraints principle in TLS self-calibration. To ensure that the assessment is thorough, the datum constraints analyses were carried out using three variant network configurations: 1) minimum number of scan stations; 2) minimum number of surfaces for targets distribution; and 3) minimum number of point targets. Based on graphical and statistical, the analyses of datum constraints selection indicated that the parameter correlations obtained are significantly similar. In addition, the analysis has demonstrated that network configuration is a very crucial factor to reduce the correlation between the calculated parameters.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:self-calibration, network configuration
Subjects:T Technology > TR Photography
Divisions:Chemical Engineering
ID Code:61390
Deposited By: Widya Wahid
Deposited On:31 Mar 2017 15:05
Last Modified:17 Aug 2017 09:51

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