F. Pratesi
Rating health and stability of engineering structures via classification indexes of InSAR Persistent Scatterers
Pratesi, F.; Tapete, D.; Terenzi, G.; Del Ventisette, C.; Moretti, S.
Authors
D. Tapete
G. Terenzi
C. Del Ventisette
S. Moretti
Abstract
We propose a novel set of indexes to classify the information content of Persistent Scatterers (PS) and rate the health of engineering structures at urban to local scale. PS are automatically sampled and grouped via ‘control areas’ coinciding with the building and its surrounding environment. Density over the ‘control areas’ and velocity of PS are converted respectively into: Completeness of Information Index (Ici) that reflects the PS coverage grade; and Conservation Criticality Indexes (Icc) which rate the health condition of the monument separately for the object and surrounding control areas. The deformation pattern over the structure is classified as isolated (i) or diffused (d) based on the Velocity Distribution Index (Ivd). Both Ici and Icc are rated from A to E classes using a colour-coded system that intentionally emulates an energy-efficiency scale, to encourage the exploitation of PS by stakeholders and end-users in the practise of engineering surveying. Workability and reliability of the classification indexes are demonstrated over the urban heritage of Florence, Italy, using well established ERS-1/2 (1992–2000) descending, ENVISAT (2003–2010) ascending and descending PS datasets. The indexes are designed in perspective of handling outputs from InSAR processing of higher-resolution time series.
Citation
Pratesi, F., Tapete, D., Terenzi, G., Del Ventisette, C., & Moretti, S. (2015). Rating health and stability of engineering structures via classification indexes of InSAR Persistent Scatterers. International Journal of Applied Earth Observation and Geoinformation, 40, 81-90. https://doi.org/10.1016/j.jag.2015.04.012
Journal Article Type | Article |
---|---|
Acceptance Date | Apr 15, 2015 |
Publication Date | Aug 1, 2015 |
Deposit Date | May 11, 2015 |
Publicly Available Date | May 19, 2015 |
Journal | International Journal of Applied Earth Observation and Geoinformation |
Print ISSN | 0303-2434 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 40 |
Pages | 81-90 |
DOI | https://doi.org/10.1016/j.jag.2015.04.012 |
Keywords | Structural deformation monitoring, Classification indexes, Synthetic aperture radar, Persistent Scatterer Interferometry. |
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http://creativecommons.org/licenses/by-nc-nd/4.0/
Copyright Statement
© 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
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