Automatic Structural Seismic Damage Assessment with Airborne Oblique Pictometry© Imagery
Accurate and rapid mapping of seismic building damage is essential to support rescue forces and estimate economic losses. Traditional methods have limitations: ground-based mapping is slow and largely limited to façade information, and image-based mapping is typically restricted
to vertical (roof) views. Here, we assess the value of photogrammetrically processed airborne oblique, multi-perspective Pictometry data, in a two-step approach: (a) supervised classification into façades, intact roofs, destroyed roofs and vegetation using 22 image-derived features,
and (b) combining the classification results from different viewing directions into a per-building damage score adapted from the European Macroseismic Scale (EMS 98) for damage classification (no-moderate damage, heavy damage, destruction). Overall classification accuracies for the four classes
and for the building damage of 70 percent and 63 percent, respectively, were achieved. Image stereo overlap helped classify façades, but problems with the relatively vague EMS damage class definitions were encountered, and subjectivity in training data generation affected overall classification
by up to 10 percent.
Document Type: Research Article
Publication date: 01 September 2011
- The official journal of the American Society for Photogrammetry and Remote Sensing - the Imaging and Geospatial Information Society (ASPRS). This highly respected publication covers all facets of photogrammetry and remote sensing methods and technologies.
Founded in 1934, the American Society for Photogrammetry and Remote Sensing (ASPRS) is a scientific association serving over 7,000 professional members around the world. Our mission is to advance knowledge and improve understanding of mapping sciences to promote the responsible applications of photogrammetry, remote sensing, geographic information systems (GIS), and supporting technologies. - Editorial Board
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