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    Calculation of Target-Specific Point Distribution for 2D Mobile Laser Scanners


    Cahalane, Conor and McElhinney, Conor and Lewis, Paul and McCarthy, Tim (2014) Calculation of Target-Specific Point Distribution for 2D Mobile Laser Scanners. Sensors, 14. pp. 9471-9488. ISSN 1424-8220

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    Abstract

    The current generation of Mobile Mapping Systems (MMSs) capture high density spatial data in a short time-frame. The quantity of data is difficult to predict as there is no concrete understanding of the point density that different scanner configurations and hardware settings will exhibit for objects at specific distances. Obtaining the required point density impacts survey time, processing time, data storage and is also the underlying limit of automated algorithms. This paper details a novel method for calculating point and profile information for terrestrial MMSs which are required for any point density calculation. Through application of algorithms utilising 3D surface normals and 2D geometric formulae, the theoretically optimal profile spacing and point spacing are calculated on targets. Both of these elements are a major factor in calculating point density on arbitrary objects, such as road signs, poles or buildings-all important features in asset management surveys.

    Item Type: Article
    Keywords: mobile mapping systems; performance; LiDAR;
    Academic Unit: Faculty of Science and Engineering > Research Institutes > National Centre for Geocomputation, NCG
    Item ID: 4986
    Identification Number: https://doi.org/10.3390/s140609471
    Depositing User: Conor Cahalane
    Date Deposited: 28 May 2014 16:00
    Journal or Publication Title: Sensors
    Publisher: MDPI
    Refereed: Yes
    URI:

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