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| 1 | Sensitivity analysis of parameters and contrasting performance of ground filtering algorithms with UAV photogrammetry-based and LiDAR point clouds显示文摘Most ground filtering algorithms are primarily designed for airborne LiDAR point cloud processing and their successful use in identifying ground points from photogrammetric point clouds remains questionable.We compared six ground filtering algorithms implemented in Metashape,ArcGIS,CloudCompare,LAStools,and PDAL.We used UAV photogrammetry-based(acquired under leaf-off conditions)and airborne LiDAR(leaf-on)point clouds of the same area to:(i)compare accuracy of generated DTMs;(ii)evaluate the effect of vegetation density and terrain slope on filtering accuracy;and(iii)assess which algorithm parameters have the greatest effect on the filtering accuracy.Our results show that the performance of filtering algorithms was affected by the point cloud type,terrain slope and vegetation cover.The results were generally better for LiDAR(RMSE 0.13–0.19 m)than for photogrammetric(RMSE 0.19–0.23 m)point clouds.The behavior in varying vegetation and terrain conditions was consistent for LiDAR point clouds.However,when applied on photogrammetric point clouds,the algorithms’behavior was inconsistent,especially in areas of steep slope(except for the Progressive Triangulated Irregular Network in LAStools).Parameters related to the selection of the initial minimum elevation ground points were the most influential in all algorithms and point clouds. | Petr Klápště Michal Fogl Vojtěch Barták Kateřina Gdulová Rudolf Urban Vítězslav Moudrý | 2020 | International Journal of Digital Earth2020，13，12： | 2 |
| 2 | Triterpenes and triterpene glycosides from Paradrymonia macrophyl显示文摘 | Christian T Hildebert Wagner Rudolf Bauer | 1996 | Phytochemistry1996，40，： | 1 |
| 3 | Performance meas- urement of modular product platforms 显示文摘 | SCHUH G RUDOLF S VOGELS T | 2014 | Variety Man- agement in Manufacturing2014，17，： | 1 |
| 4 | MechanicaL testing of a noveL hydrogeL nucLeus repLacement impLant显示文摘 | RudoLf BertagnoLi Christopher T Jean T | 2005 | Spine J2005，5，： | 1 |
| 5 | In vivo monitoring of Ca2+ uptake into mitochondria of mouse skeletal muscle during contraction显示文摘 | Rudolf R Mongillo M Magalhaes P J Pozzan T | 2004 | Cell Biol2004，166，4： | 1 |
| 6 | CD44 expression in benign and malignant colorectal polyps显示文摘 | Renate Neumayer M.D. Dr. Harald R. Rosen M.D. Angelika Reiner M.D. Christian Sebesta M.D. Alfons Schmid M.D. Heinz Tüchler Rudolf Schiessel M.D | 1999 | Diseases of the Colon & Rectum1999，，1： | 1 |
| 7 | Haze trendsover the United States,1980-1995显示文摘 | Schichtel B A Rudolf B H Stefan R Fe t al | 2001 | Atmospheric Envi-ronment2001，35，30： | 1 |
| 8 | Discovery of olodaterol, a novel inhaled fl2-adrenoceptor agonist with a 24 h bronchodilatory efficacy 显示文摘 | BOUYSSOU T HOENKE C RUDOLF K | 2010 | Bioorg Med Chem Lett2010，20，4： | 1 |
| 9 | Genomic Analysis of the Nitrate Response Using a Nitrate Reductase-Null Mutant of Arabidopsis显示文摘 | Rongchen W Rudolf T Rodrigo A | 2004 | Plant Physiology2004，136，1： | 1 |
| 10 | Intertemporal surplus management 显示文摘 | Rudolf M Ziemba W T | 2004 | Journal of Economic Dynamics 和 Control2004，28，： | 1 |
| 11 | Novel flavivirus or new lineage of West nile virus, Central Europe显示文摘 | Bakonyi T Hubalek Z Rudolf I and Nowomy N | 2005 | Emerging Infectious Diseases2005，11，2： | 1 |
| 12 | The surface tension of aqueous solutions of some atmospheric water-soluble organic compounds 显示文摘 | RUDOLF T HEIKO K C | 2004 | Atmospherie Environment2004，38，36： | 1 |
| 13 | Smoking cessation would sudstantially reduce the future incidence of pancreatic cancer in the European Union显示文摘 | Hoogenveen A Rudolf T | 2002 | Euro J Gastroentero Hepatol2002，14，12： | 1 |
| 14 | Control of PKM machine tools usingpiezoelectric self-sensing actuators on basis of the functional principle of a scale with a vibrating string 显示文摘 | Rudolf C Martin T | 2010 | Smart Structures and Systems2010，6，2： | 1 |
| 15 | Novel flavivirus or newlineage of West Nile virus,central Europe显示文摘 | Bakonyi T Hubalek Z Rudolf I | 2005 | Emerg Infect Dis2005，11，2： | 1 |
| 16 | Precise Temperature Control for Measurement Purposes 显示文摘 | M Orzylowski T Kaluzniacki Z Rudolf etc | 1999 | IEEE Trans1999，6，： | 1 |
| 17 | Discovery of olodaterol, a novel inhaled beta2-adrenoceptor agonist with a 24 h bronchodilatory efficacy 显示文摘 | Bouyssou T Hoenke C Rudolf K | 2010 | Bioorg Med Chem Lett2010，20，4： | 1 |
| 18 | Partial interaction stresses in continuous composite beams under serviceability loads显示文摘 | Rudolf S Chow T L Tze C L | 2004 | Journal of Constructional Steel Research2004，60，3： | 1 |
| 19 | Multilayered nano-foils for low-temperature metal-ceramic joining显示文摘 | Karlo T Raic Rebeka Rudolf | 2008 | Assoe Metall Eng Serbia2008，14，2： | 1 |
| 20 | Smoking cessation would substantially reduce the future incidence of pancreatic cancer in the European Union显示文摘 | Mulder I Hoogenveen Rudolf T | 2002 | Euro J Gastroentero Hepatol2002，14，12： | 1 |
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