@Article{isprs-archives-XLII-2-W15-465-2019,
AUTHOR = {Farella, E. M. and Torresani, A. and Remondino, F.},
TITLE = {SPARSE POINT CLOUD FILTERING BASED ON COVARIANCE FEATURES},
JOURNAL = {The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences},
VOLUME = {XLII-2/W15},
YEAR = {2019},
PAGES = {465--472},
URL = {https://isprs-archives.copernicus.org/articles/XLII-2-W15/465/2019/},
DOI = {10.5194/isprs-archives-XLII-2-W15-465-2019}
}