3D Reconstruction of University of Ilorin Campus Using High Resolution Satellite Imagery and Conventional Survey
Azeez Alade, Abdulazeez Abdulyekeen, Hussein Ahmadu, Abdulganiyu Yusuf, Abdulraheem Amoo
There is an increasing demand for 3D geospatial data and modelling for urban planning, design and
management. This paper presents the production of a 3D map of the University of Ilorin Main Campus to
provide accurate spatial information database to enhance adequate planning and maintenance of
infrastructural development. Geometric data (spot heights and building elevations) were acquired using
Trimble M1 Total Station and Global Positioning System (Hi - Target). From high resolution (0.6m) Google
Earth image of the study area, building footprints and road network were vectorized to produce 2D map
while the attribute data were obtained through social survey by means of oral interview and visual
inspection. The data collected were processed in ArcMap 10.6 and Surfer 15 environments to generate data
products. Using the building footprint and the building height measured with Total Station, the 3D map was
generated. Spatial analyses, such as queries and network analysis, were executed to demonstrate some key
infrastructural management issues this work will be useful for. The areas of application of these products cut
across various disciplines such as urban planning, architectural visualization and environmental protection
such as flood risk management.
Event: FIG e-Working Week 2021
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