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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 | Will threat of bi- ological invasions unite the European union显示文摘 | HULME P E PETR P NENTWING W | 2009 | Science2009，324，： | 1 |
| 3 | Profit-sharing a tool for improving productivity, profitability and competitiveness of firms? 显示文摘 | JANA F PETR P | 2013 | Journal of Competitiveness2013，3，4： | 1 |
| 4 | Planar near-field to far-field transfomm-tion using an array of dipole probes显示文摘 | Petre P Sarkar T K | 1994 | IEEE Transactions on Antennas and Propagation1994，42，4： | 1 |
| 5 | Improvement in exercise tolerance and symptoms of congestive heart failure during treatment with candesartan cilexetil显示文摘 | Riegger GA Bouzo H Petr P | 1999 | Circulation1999，100，： | 1 |
| 6 | Planar near-field to far-field transfor- mation using an equivalent magnetic curt'cut approach 显示文摘 | Petre P Sarkar T K | 1992 | IEEE Transactions on Antennas and Propagation1992，40，11： | 1 |
| 7 | Pressurized liquid extraction in determination of polychlorinated biphenyls and organochlorine pesticides in fish samples显示文摘 | PETR S JANA P JANA H | 2004 | Anal Chim Acta2004，520，12： | 1 |
| 8 | Study of fungal degradation products of polycyclic aromatic hydrocarbons using gas chromatography with ion trap mass spectrometry detection 显示文摘 | Cajthaml T Moder M P Petr K | 2002 | Journal of Chromatography2002，974，： | 1 |
| 9 | Finite element modeling of the first ray of the foot : a tool for the design of in- terventions 显示文摘 | Budhabhatti S P Erdemir A Petre M | 2007 | J Biomech Eng2007，129，5： | 1 |
| 10 | Revisiting the total contact cast:maximizing off-loading by wound isolation显示文摘 | Petre M Tokar P Kostar D | | 0，，04： | 1 |
| 11 | Improvement in exercise tolerance and symptoms of congestive heart failure during treatment with candesaran cilexetil:Symptom,Tolerability,Response to exercise trial candesaran cilexetil in heart failure (STRETCH) investigators显示文摘 | RIEGGER G A BOUZO H PETR P | 1999 | Circulation1999，100，22： | 1 |
| 12 | Thermal denaturation of whey protein in mixtures with caseins studied by differential scanning calorimetry显示文摘 | MARIE P PETR D | 1990 | J Dairy Sci1990，73，： | 1 |
| 13 | Double-dose versus standard-dose clopidogrel and high-dose versus low-dose aspirin in individuals undergoing percutaneous coronary intervention for acute coronary syndromes (CURRENT-OASIS 7): a randomised factorial trial显示文摘 | Shamir R Mehta Jean-Francois Tanguay John W Eikelboom Sanjit S Jolly Campbell D Joyner Christopher B Granger David P Faxon Hans-Jurgen Rupprecht Andrzej Budaj Alvaro Avezum Petr Widimsky Philippe Gabriel Steg Jean-Pierre Bassand Gilles Montalescot Carlos | 2010 | The Lancet2010，，9748： | 1 |
| 14 | Thermal processing of sewage sludge显示文摘 | STASTA P BORANA J BEBARA L STEHLIK PETR P ORAL PETR J | 2006 | Appl Thermal Eng2006，26，13： | 1 |
| 15 | Double-dose versus standard-dose clopidogrel and high-dose versus low-dose aspirin in individuals undergoing percutaneous coronary intervention for acute coronary syndromes (CURRENT-OASIS 7): a randomised factorial trial显示文摘 | Shamir R Mehta Jean-Francois Tanguay John W Eikelboom Sanjit S Jolly Campbell D Joyner Christopher B Granger David P Faxon Hans-Jurgen Rupprecht Andrzej Budaj Alvaro Avezum Petr Widimsky Philippe Gabriel Steg Jean-Pierre Bassand Gilles Montalescot Carlos | 2010 | The Lancet2010，，9748： | 1 |
| 16 | Studies on mechism of cthanolindu-ced gastrio dastric damage in rats显示文摘 | PETRE J JOHN P H | 1998 | Gastroenterology1998，32，： | 1 |
| 17 | Variceal bleeding in portal hypertension: bacterial infection and comparison of efficacy of intravenous and per-oral application of antibiotics – a randomized trial显示文摘 | Jan Lata Jana Juránková Libu?e Husová Michal ?enky?ík Petr Dítě Milan Dastych Veronika P?íbramská Radek Kroupa | 2005 | European Journal of Gastroenterology & Hepatology2005，，10： | 1 |
| 18 | Properties of surface-treated mica in anticorrosive coating显示文摘 | PETR P ANDREA K VACLAV S | 2004 | Progress in organic coating2004，49，2： | 1 |
| 19 | Finite element modeling of the first ray of the foot:a tool for the design of interventions显示文摘 | BUDHABHATTI S P ERDEMIR A PETRE M | 2007 | J Biomech Eng2007，129，5： | 1 |
| 20 | Adefovir dipivoxil alone or combination with lamivudine in patients with lamivudine-re-sistant chronic hepatitis B显示文摘 | Petrs MG Hann HW Martin P | 2004 | Gastroenterology2004，126，1： | 1 |
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