Exploration towards the modeling of gable-roofed buildings using a combination of aerial and street-level imagery

Ivo Creusen; Lykele Hazelhoff; Peter H. N. de With

doi:10.1117/12.2075656

4 March 2015 Exploration towards the modeling of gable-roofed buildings using a combination of aerial and street-level imagery

Ivo Creusen, Lykele Hazelhoff, Peter H. N. de With

Author Affiliations +

Proceedings Volume 9407, Video Surveillance and Transportation Imaging Applications 2015; 94070S (2015) https://doi.org/10.1117/12.2075656
Event: SPIE/IS&T Electronic Imaging, 2015, San Francisco, California, United States

Abstract

Extraction of residential building properties is helpful for numerous applications, such as computer-guided feasibility analysis for solar panel placement, determination of real-estate taxes and assessment of real-estate insurance policies. Therefore, this work explores the automated modeling of buildings with a gable roof (the most common roof type within Western Europe), based on a combination of aerial imagery and street-level panoramic images. This is a challenging task, since buildings show large variations in shape, dimensions and building extensions, and may additionally be captured under non-ideal lighting conditions. The aerial images feature a coarse overview of the building due to the large capturing distance. The building footprint and an initial estimate of the building height is extracted based on the analysis of stereo aerial images. The estimated model is then refined using street-level images, which feature higher resolution and enable more accurate measurements, however, displaying a single building side only. Initial experiments indicate that the footprint dimensions of the main building can be accurately extracted from aerial images, while the building height is extracted with slightly less accuracy. By combining aerial and street-level images, we have found that the accuracies of these height measurements are significantly increased, thereby improving the overall quality of the extracted building model, and resulting in an average inaccuracy of the estimated volume below 10%.

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Ivo Creusen, Lykele Hazelhoff, and Peter H. N. de With "Exploration towards the modeling of gable-roofed buildings using a combination of aerial and street-level imagery", Proc. SPIE 9407, Video Surveillance and Transportation Imaging Applications 2015, 94070S (4 March 2015); https://doi.org/10.1117/12.2075656

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KEYWORDS

Buildings

Image processing

Data modeling

Panoramic photography

3D modeling

Image resolution

Solar cells

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