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    Mobile mapping system performance - an analysis of the effect of laser scanner configuration and vehicle velocity on scan profiles


    Cahalane, Conor and McElhinney, Conor P. and McCarthy, Tim (2010) Mobile mapping system performance - an analysis of the effect of laser scanner configuration and vehicle velocity on scan profiles. In: European laser Mapping Forum (ELMF 2010), 2010, The Hague, The Netherlands.

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    Abstract

    When a laser scanner is mounted on a moving platform and combined with a GNSS receiver and inertial navigation system, it is capable of producing millions of geo-referenced points which can then be used to create near-3D models. The development of processing algorithms for these point clouds has largely been the focus of the research community to date. However, given an arbitrary known static object positioned at a specific distance away from a mobile mapping system (MMS) the resolution of the resulting point cloud that will describe that object is unknown. This is the underlying limit of point cloud processing algorithms. We are in the process of developing a method for determining the quantitative resolution of point clouds collected by a MMS with respect to known objects at specified distances. Our previous work has demonstrated our initial investigations into the effect that a scanner position, configuration and operating speed has on scan lines - both in profile spacing and scan line orientation at varying vehicle speeds. This paper focuses on the combined effect on profiles of both vertical and horizontal rotations of the scanner, explores in greater detail the effect on scan line orientation caused by vehicle motion and also incorporates point spacing as a function of range into our model. As with our previous work, we will develop a system to calculate this information and then verify our equations and analysis by comparing our simulated data to the point cloud data collected by our XP-1 mobile mapping system.

    Item Type: Conference or Workshop Item (Paper)
    Additional Information: The authors would like to acknowledge the support received from the Irish Research Council for Science, Engineering and Technology(IRCSET) and the Enterprise Partner, Pavement Management Systems Ltd during this research. The authors would also like to acknowledge funding received from StratAG for attending this conference. StratAG is funded by a Strategic Research Cluster grant (07/SRC/I1168) by Science Foundation Ireland under the National Development Plan. The authors gratefully acknowledge this support.
    Keywords: Mobile mapping; system performance; laser scanner; configuration; vehicle velocity; scan profiles;
    Academic Unit: Faculty of Science and Engineering > Research Institutes > National Centre for Geocomputation, NCG
    Item ID: 9270
    Depositing User: Tim McCarthy
    Date Deposited: 21 Feb 2018 15:13
    Refereed: Yes
    Funders: Irish Research Council for Science Engineering and Technology (IRCSET), Pavement Management Systems, Science Foundation Ireland (SFI)
    URI:

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