Title :
Parametric reconstruction of internal building structures via canonical scattering mechanisms
Author :
Subotic, Nikola ; Keydel, Eric ; Burns, Joseph ; Morgan, Andrew ; Cooper, Kyle ; Thelen, Brian ; Wilson, Brian ; Williams, Wayne ; McCarty, Sean ; Lampe, Bernard ; Mosher, Bryan ; Setterdahl, Duane
Author_Institution :
Michigan Tech Res. Inst., Ann Arbor, MI
fDate :
March 31 2008-April 4 2008
Abstract :
In this paper, we describe a model-based, non-linear reconstruction method for mapping internal building structures using through-wall radar data. We based the model on canonical geometry constructs that are commonly used in construction practices. These constructs are then formulated as sets of simple scattering mechanisms, which can be estimated from the data. Our non-linear approach employs an iterative, conditional estimation method as a function of the intervening structures between the sensor and the object under consideration. Specific associations of scattering mechanisms are then used to re-create various building structures such as walls, doors, stairs, etc. We discuss some examples of estimating specific scattering mechanisms and a model-based reasoning approach for assembling them to reconstruct the interior structure of a building.
Keywords :
building; electromagnetic wave scattering; iterative methods; parameter estimation; structural engineering computing; canonical scattering; conditional parameter estimation; internal building structures; iterative estimation; model-based reconstruction; nonlinear reconstruction; parametric reconstruction; through-wall radar data; Assembly; Backscatter; Buildings; Dielectrics; Floors; Geometry; Image reconstruction; Inference mechanisms; Radar scattering; Solid modeling; EM scattering; Through wall imaging; conditional parameter estimation;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2008. ICASSP 2008. IEEE International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-1483-3
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2008.4518828