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Building extraction and 3D reconstruction in urban areas from high-resolution optical and SAR imagery

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3 Author(s)
Sportouche, H. ; Inst. TELECOM, TELECOM ParisTech, Paris, France ; Tupin, F. ; Denise, L.

In this paper, we propose to investigate the joint use of high-resolution optical and SAR data, for building extraction and 3D reconstruction in large urban areas. A sequence of methods providing, in a semi-automatic way, the building detection and reconstruction is presented. Potential building footprints are first extracted on an optical image by a two-phases process (coarse detection and boundaries refinement). The framework of fusion with SAR data is then developed. A first step of registration allows us to get a fine superposition of optical and SAR building features. Then, we show how to take benefit from the introduction of SAR data: The proposed methodology, based on the optimization of criteria refering to building SAR characteristics, allows us to simultaneously deal with the building presence validation and with the height retrieval.

Published in:

Urban Remote Sensing Event, 2009 Joint

Date of Conference:

20-22 May 2009