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Funded PhD Opportunity

Solidification of point cloud data for irregular shapes

Subject: Architecture, Built Environment and Planning


Summary

Three dimensional (3D) point cloud models produced by laser scanning or close range photogrammetry can be exported into proprietary software that can generate surfaces.  Typically this is based on interpolation of the point cloud using a mesh-based algorithm. However, Revit and other BIM software requires a parametric representation of the geometry with the intelligent data attached rather than a static shape only. Barazzetti et al (2015) initially set out a procedure to create parametric Building Information Modelling (BIM) objects from point clouds for complex architectural features such as arched roofs. The work of Barazzetti et al. was for objects with a clearly defined surface using a mesh-based algorithm to generate the roofs and redrew the basic shapes such as windows and walls etc.in BIM.  Redrawing the basic shapes resulted in a loss of the Red, Green, Blue (RGB) data from the cloud. This project will develop a process that solidifies point clouds of irregular shapes such as walls from point cloud data. Chiabrando et al. (2017) used the PointSense plugin for Revit that allows partial point import into the Revit Family Editor (RFE).  Model Level of Detail (MLD) and intelligent information sequencing automation needed further automation. Macher et al. (2017) indicate how the transfer to Industry Foundation Class (IFC) models can take place. However, this needs a further step to ensure that the intelligent data is imported and recorded.

This project seeks to solidify irregular shapes such as stone walls through machine learning and mathematical algorithms to automate the process of point cloud import into Revit. This project is aligned with the Ulster Digital Futures vision.

Background publications:

Barazzetti L., Banfi F. Brumana R. and Previtali M.  (2015) Creation of Parametric BIM Objects from Point Clouds using NURBS, The Photogrammetric Record 30(152): 339–362 (December 2015) DOI: 10.1111/phor.12122

Chiabrando F. Lo Turco M. , and Santagatib C. (2017) Digital Invasions: From Point Clouds to Historical Building Object Modelling (H-BOM) of a UNESCO WHL Site, The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XLII-2/W3, 2017 3D Virtual Reconstruction and Visualization of Complex Architectures, 1–3 March 2017,

Nafplio, Greece Macher, H. Landes T. and Grussenmeyer P. (2017) From Point Clouds to Building Information Models: 3D Semi-Automatic Reconstruction of Indoors of Existing Buildings, Appl. Sci. 2017, 7(10), 1030; https://doi.org/10.3390/app7101030


Essential criteria

  • To hold, or expect to achieve by 15 August, an Upper Second Class Honours (2:1) Degree or equivalent from a UK institution (or overseas award deemed to be equivalent via UK NARIC) in a related or cognate field.
  • Clearly defined research proposal detailing background, research questions, aims and methodology

Funding

    The University offers the following awards to support PhD study and applications are invited from UK, EU and overseas for the following levels of support:

    Vice Chancellors Research Studentship (VCRS)

    Full award (full-time PhD fees + DfE level of maintenance grant + RTSG for 3 years).

    This scholarship will cover full-time PhD tuition fees and provide the recipient with £15,000 maintenance grant per annum for three years (subject to satisfactory academic performance). This scholarship also comes with £900 per annum for three years as a research training support grant (RTSG) allocation to help support the PhD researcher.

    Vice-Chancellor’s Research Bursary (VCRB)

    Part award (full-time PhD fees + 50% DfE level of maintenance grant + RTSG for 3 years).

    This scholarship will cover full-time PhD tuition fees and provide the recipient with £7,500 maintenance grant per annum for three years (subject to satisfactory academic performance). This scholarship also comes with £900 per annum for three years as a research training support grant (RTSG) allocation to help support the PhD researcher.

    Vice-Chancellor’s Research Fees Bursary (VCRFB)

    Fees only award (PhD fees + RTSG for 3 years).

    This scholarship will cover full-time PhD tuition fees for three years (subject to satisfactory academic performance). This scholarship also comes with £900 per annum for three years as a research training support grant (RTSG) allocation to help support the PhD researcher.

    Department for the Economy (DFE)

    The scholarship will cover tuition fees at the Home rate and a maintenance allowance of £ 15,009 per annum for three years. EU applicants will only be eligible for the fee’s component of the studentship (no maintenance award is provided). For Non-EU nationals the candidate must be "settled" in the UK. This scholarship also comes with £900 per annum for three years as a research training support grant (RTSG) allocation to help support the PhD researcher.

    Due consideration should be given to financing your studies; for further information on cost of living etc. please refer to: www.ulster.ac.uk/doctoralcollege/postgraduate-research/fees-and-funding/financing-your-studies


Other information


The Doctoral College at Ulster University

Key dates

Submission deadline
Friday 7 February 2020

Interview Date
Week beginning 9 March 2020


Applying

Apply Online  


Campus

Jordanstown campus

Jordanstown campus
The largest of Ulster's campuses


Contact supervisor

Dr Robert Eadie


Other supervisors

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