@Article{isprs-archives-XL-1-W4-263-2015,
AUTHOR = {Oliveira, H. C. and Habib, A. F. and Dal Poz, A. P. and Galo, M.},
TITLE = {HEIGHT GRADIENT APPROACH FOR OCCLUSION DETECTION IN UAV IMAGERY},
JOURNAL = {The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences},
VOLUME = {XL-1/W4},
YEAR = {2015},
PAGES = {263--268},
URL = {https://isprs-archives.copernicus.org/articles/XL-1-W4/263/2015/},
DOI = {10.5194/isprsarchives-XL-1-W4-263-2015}
}