Digital surface models and building extraction: a comparison of IFSAR and LIDAR data

The task of extracting significant built structure in digital surface models (DSM) is analyzed. The original data are obtained by means of interferometric SAR or LIDAR techniques and have different resolution and noise characteristics. This work aims to make a comparison of what (and how precisely) it is possible to detect and extract starting from these models, taking into account their differences but applying to them the same planar approximation approach. To this aim, data over Los Angeles and Denver is considered and evaluated. The results show that LIDAR data provide a better shape characterization of each building, and not simply because of their higher resolution. Indeed, less accurate results obtained starting from radar data are mainly due to shadowing/layover effects, which can be only partially corrected by means of the segmentation procedures. However, better results than those already presented in the literature could be achieved by using the IFSAR data correlation map.

[1]  Søren Nørvang Madsen,et al.  Analysis and evaluation of the NASA/JPL TOPSAR across-track interferometric SAR system , 1995, IEEE Transactions on Geoscience and Remote Sensing.

[2]  Claus Brenner,et al.  Extraction of buildings and trees in urban environments , 1999 .

[3]  Zong-Guo Xia,et al.  SAR applications in human settlement detection, population estimation and urban land use pattern analysis: a status report , 1997, IEEE Trans. Geosci. Remote. Sens..

[4]  Paolo Gamba,et al.  Three dimensional urban characterization by IFSAR measurements , 1999, IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293).

[5]  E. Baltsavias,et al.  Use of DTMs/DSMs and orthoimages to support building extraction , 1995 .

[6]  Søren Nørvang Madsen,et al.  Analysis and evaluation of the NASA/JPL TOPSAR across-track interferometric SAR system , 1995 .

[7]  Emmanuel P. Baltsavias,et al.  A comparison between photogrammetry and laser scanning , 1999 .

[8]  Armin Gruen,et al.  TOBAGO — a semi-automated approach for the generation of 3-D building models , 1998 .

[9]  E. J. Huising,et al.  Errors and accuracy estimates of laser data acquired by various laser scanning systems for topographic applications , 1998 .

[10]  Armin Gruen,et al.  CC-MODELER : A TOPOLOGY GENERATOR FOR 3-D CITY MODELS , 1998 .

[11]  Wolfgang Förstner,et al.  A hybrid concept for 3D building acquisition , 1998 .

[12]  A. Lembo,et al.  The use of innovative data collection techniques in support of enterprise wide GIS development , 1998 .

[13]  Paolo Gamba,et al.  Detection and extraction of buildings from interferometric SAR data , 1999, IEEE Trans. Geosci. Remote. Sens..

[14]  M. Tesauro,et al.  Results of the Mt. Etna interferometric E-SAR campaign , 1997, IGARSS'97. 1997 IEEE International Geoscience and Remote Sensing Symposium Proceedings. Remote Sensing - A Scientific Vision for Sustainable Development.

[15]  Ansgar Brunn,et al.  Hierarchical Bayesian nets for building extraction using dense digital surface models , 1998 .

[16]  George Vosselman,et al.  Two algorithms for extracting building models from raw laser altimetry data , 1999 .

[17]  D.L. Rabine,et al.  Development and test of a raster scanning laser altimeter for high resolution airborne measurements of topography , 1996, IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium.

[18]  M.J.P.M. Lemmens.  Accurate height information from airborne laser-altimetry , 1997, IGARSS'97. 1997 IEEE International Geoscience and Remote Sensing Symposium Proceedings. Remote Sensing - A Scientific Vision for Sustainable Development.

[19]  David A. Holland.  3D RECONSTRUCTION AND MODELLING OF TOPOGRAPHIC OBJECTS , 1998 .

[20]  Christoph Hug,et al.  Extracting Artificial Surface Objects from Airborne Laser Scanner Data , 1997 .

[21]  Wolfgang Förstner,et al.  Towards automatic building extraction from high-resolution digital elevation models , 1995 .

[22]  Liu Zhen,et al.  A new airborne remote sensing system integrating scanning altimeter with infrared scanner , 1997, IGARSS'97. 1997 IEEE International Geoscience and Remote Sensing Symposium Proceedings. Remote Sensing - A Scientific Vision for Sustainable Development.

[23]  J. R. Fellerhoff,et al.  Elevation correction and building extraction from interferometric SAR imagery , 1996, IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium.

[24]  Giovanni Alberti,et al.  The TOPSAR interferometric radar topographic mapping instrument , 1992, IEEE Trans. Geosci. Remote. Sens..