@ARTICLE{8278263, 
author={H. Ni and X. Lin and J. Zhang and D. Chen and J. Peethambaran}, 
journal={IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing}, 
title={Joint Clusters and Iterative Graph Cuts for ALS Point Cloud Filtering}, 
year={2018}, 
volume={11}, 
number={3}, 
pages={990-1004}, 
keywords={densification;filtering theory;graph theory;iterative methods;pattern clustering;ALS point cloud filtering;cluster level;critical point extraction;critical points;ground points;initial terrain determination;iterative graph cuts;joint clusters;low point density;moderate point density show;nonground points;raw point cloud;rough clusters;scattered points;smooth clusters;two-step clustering;two-step point cloud;Clustering algorithms;Iterative methods;Laser radar;Remote sensing;Surface morphology;Surface treatment;Three-dimensional displays;Airborne laser scanning (ALS);critical points;filtering;iterative graph cuts;point clustering}, 
doi={10.1109/JSTARS.2018.2793915}, 
ISSN={1939-1404}, 
month={March},}