Searched for: subject:"3D%5C%2Bcity%5C%2Bmodel"
(1 - 5 of 5)
document
Zhou, K. (author), Lindenbergh, R.C. (author), Gorte, Ben (author)
Up-to-date 3D city models are needed for many applications. Very-high-resolution (VHR) images with rich geometric and spectral information and a high update rate are increasingly applied for the purpose of updating 3D models. Shadow detection is the primary step for image interpretation, as shadow causes radiometric distortions. In addition,...
journal article 2019
document
Gorte, B. G.H. (author), Zhou, K. (author), Van Der Sande, C. J. (author), Valk, C. (author)
Representation of scenes on the Earth surface by using voxels is gaining attention because of its suitability for integrating heterogeneous data sources in simulations and quantitative models. Computation of shadows in such models is needed, for example, to obtain crop suitability of agricultural fields in the presence of trees and buildings,...
journal article 2018
document
Zhou, K. (author), Gorte, B.G.H. (author)
In VHR(very high resolution) aerial images, shadows indicating height information are valuable for validating or detecting changes on an existing 3D city model. In the paper, we propose a novel and full automatic approach for shadow detection from VHR images. Instead of automatic thresholding, the supervised machine learning approach is...
conference paper 2017
document
Verbree, E. (author), De Vries, M.E. (author), Gorte, B.G.H. (author), Oude Elberink, S. (author), Karimiou, G. (author)
Water run-off modelling applied within urban areas requires an appropriate detailed surface model represented by a raster height grid. Accurate simulations at this scale level have to take into account small but important water barriers and flow channels given by the large-scale map definitions of buildings, street infrastructure, and other...
conference paper 2013
document
Lesparre, J. (author), Gorte, B.G.H. (author)
Aerial laser scan data is widely used to produce 2½D digital elevation models automatically. However, creating full 3D city models from this data is a complex task. A simplified 3D model, like a 2½D model with vertical walls will be easier to produce automatically, especially when the model is not produced to look nice, but just to give...
conference paper 2012
Searched for: subject:"3D%5C%2Bcity%5C%2Bmodel"
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