Publication Date:
2021-02-26
Description:
This letter proposes a building characterization tech-nique for L-band polarimetric interferometric synthetic apertureradar (SAR) data. This characterization consists of building iden-tification and height estimation. Initially, a polarimetric interfer-ometric segmentation is performed to isolate buildings from theirsurroundings. This classification identifies three basic categories:single bounce, double bounce, and volume diffusion. In order tocompensate for the misclassifications among the volume and thedouble-bounce classes, interferometric phases given by the high-resolution Estimation of Signal Parameters via Rotational Invari-ance Techniques (ESPRIT) method are analyzed. Once buildingsare localized, a phase-to-height procedure is applied to retrievebuilding height information. The method is validated using E-SAR,German Aerospace Center (DLR) fully polarimetric SAR data, atL-band, repeat-pass mode, over the Oberpfaffenhofen, Germany,test site, with a spatial resolution of 1.5 m in range and azimuth.More than 80% of buildings are retrieved with acceptably accu-rate height estimates
Language:
English
Type:
info:eu-repo/semantics/conferenceObject
Permalink