The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part B3b. Beijing 2008 
692 
ACKNOLEDGMENTS 
The research was partially supported by a Natural Sciences and 
Engineering Research Council of Canada (NSERC) discovery 
grant. 
REFERENCES 
Ackermann, F., 1999. Airborne laser scanning: present status 
and future expectations. ISPRS Journal of Photogrammetry and 
Remote Sensing, 54(2-3), pp. 64-67. 
Baltsavias, E. P., 1999. A comparison between photogrammetry 
and laser scanning. ISPRS Journal of Photogrammetry and 
Remote Sensing, 54(2-3), pp. 83-94. 
Brovelli, M. A. and M. Cannata, 2004. Digital terrain model 
reconstruction in urban areas from airborne laser scanning data: 
the method and an example for Pavia (northern Italy). 
Computers and Geosciences, 30, pp. 325-331. 
Haala, N. and C. Brenner, 1999. Virtual city models from laser 
altimeter and 2D map data, Photogrammetric Engineering & 
Remote Sensing, 65(7), pp. 787-795. 
Koch, B., U. Heyder, and H. Weinacker, 2006. Detection of 
Individual Tree Crowns in Airborne Lidar Data, 
Photogrammetric Engineering and Remote Sensing, 72(4) , pp. 
357-364. 
Lloyd, C. D. and P. M. Atkinson, 2002. Deriving DSMs from 
LIDAR data with Kriging. International Journal of Remote 
Sensing, 23(12), pp. 2519-2524. 
Ma, R., 2005. DEM generation and building detection from 
LIDAR data. Photogrammetric Engineering and Remote 
Sensing, 71(7) , pp. 847-854. 
Oliver, S. and Carol A. Gotway, 2005. Statistical Methods for 
Spatial Data Analysis. New York: CRC Press. 
Shan, J. and A. Sampath, 2005. Urban DEM generation from 
raw Lidar data: A labeling algorithm and its performance, 
Photogrammetric Engineering and Remote Sensing, 71(2), pp. 
217-226. 
Sithole, G. and G. Vosselman, 2004. Experimental comparison 
of filter algorithms for bare-Earth extraction from airborne laser 
scanning point clouds. ISPRS Journal of Photogrammetry and 
Remote Sensing, 59(1-2), pp. 85-101. 
Stein, M. L., 1999. Interpolation of Spatial Data: Some Theory 
for Kriging, Springer, 247 pp. 
Wallace, C. S. A. and S. E. Marsh, 2005. Characterizing the 
spatial structure of endangered species habitat using 
geostatistical analysis of IKONOS imagery. International 
Journal of Remote Sensing, 26(12), pp. 2607-2629. 
Wehr A. and U. Lohr, 1999. Airborne laser scanning—an 
introduction and overview. ISPRS Journal of Photogrammetry 
and Remote Sensing, 54(2-3), pp. 68-82. 
Woolard, J. W. and J. D. Colby, 2002. Spatial characterization, 
resolution, and volumetric change of coastal dunes using 
airborne LIDAR: Cape Hatteras, North Carolina. 
Geomorphology, 48(1-3), pp. 269-287.