AN IMPROVED PROGRESSIVE MORPHOLOGICAL FILTERING ALGORITHM BASED ON SPATIALLY-DISTRIBUTED SLOPE VALUE OVER TROPICAL VEGETATED REGIONS
DOI:
https://doi.org/10.11113/jt.v77.6866Keywords:
Airborne LiDAR, slope map, progressive morphological filter, digital terrain modelAbstract
This paper presents a thorough investigation on integrating slope map on the existing progressive morphological filtering algorithm for ground point’s extraction. The existing filtering algorithm employs constant slope value for the entire area. The slope map is either generated from field collected elevation data or ground point obtained from initial filtering of airborne LiDAR data. The filtering process has been performed with recursive mode and it stops after the results of the filtering does not show any improvement and the DTM error larger than the previous iteration. The results show that both data used for slope map generation have decreasing pattern of DTM error with increasing in filtering iteration. The spatially-distributed slope map has significantly improved the quality of the DTM compared to the results of filtering based on a constant slope valueReferences
M. W. Palace, F. B. Sullivan, M. J. Ducey, R. N. Treuhaft, C. Herrick, J. Z. Shimbo, et al. 2015. "Estimating forest structure in a tropical forest using field measurements, a synthetic model and discrete return lidar data," Remote Sensing of Environment. 161(5): 1-11,
C. W. Bater and N. C. Coops. 2009."Evaluating error associated with lidar-derived DEM interpolation," Computers & Geosciences. 35(2): 289-300
Y.-C. Chang, A. F. Habib, D. C. Lee, and J.-H. Yom. 2008. "Automatic Classification of Lidar Data into Ground and Non-ground Points," in The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. 457 - 462.
X. Meng, L. Wang, and N. Currit, 2009."Morphology-based building detection from airborne LIDAR data," Photogrammetric Engineering & Remote Sensing. 75: 437-442
M. E. Hodgson and P. Bresnahan, 2004. "Accuracy of Airborne Lidar-Derived Elevation," Photogrammetric Engineering & Remote Sensing. 70: 331-339,
A. F. B. Abdullah. 2012. "A Methodology for Processing Raw Lidar Data to Support Urban Flood Modelling Framework," Doctor of Philosophy, Delft University of Technology, Delft, Netherlands,
E. Huising and L. Gomes Pereira. 1998. "Errors and accuracy estimates of laser data acquired by various laser scanning systems for topographic applications," ISPRS Journal Of Photogrammetry And Remote Sensing. 53: 245-261,
X. Meng, N. Currit, and K. Zhao. 2010. "Ground Filtering Algorithms for Airborne LiDAR Data: A Review of Critical Issues," Remote Sensing. 833-860
K. A. Razak, M. Santangelo, C. J. Van Westen, M. W. Straatsma, and S. M. de Jong. 2013."Generating an optimal DTM from airborne laser scanning data for landslide mapping in a tropical forest environment." Geomorphology. 190(5-15): 112-125
A. Martinez de Agirre and J. A. Malpica. 2010. "Morphological filter for removing nonground measurements from LIDAR data," presented at the GIS Ostrava 2010, VSB - TU Ostrava,
Z. Cui. 2013. "A Generalized Adaptive Mathematical Morphological Filter for LIDAR Data,"
K. Zhang, S.-C. Chen, D. Whitman, M.-L. Shyu, J. Yan, and C. Zhang. 2003."A progressive morphological filter for removing nonground measurements from airborne LIDAR data," Geoscience and Remote Sensing, IEEE Transactions . 41: 872-882,
Z. Ismail, M. Z. A. Rahman, M. R. M. Salleh, and A. R. M. Yusof 2015. "Accuracy Assessment of LIDAR-Derived Elevation Value Over Vegetated Terrain in Tropical Region." Jurnal Teknologi. 73
G. Sithole 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(8): 85-101
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