| Processing and assessment of spectrometric, stereoscopic imagery collected using a lightweight UAV spectral camera for precision agriculture E Honkavaara, H Saari, J Kaivosoja, I Pölönen, T Hakala, P Litkey, ... Remote Sensing 5 (10), 5006-5039, 2013 | 379 | 2013 |
| Full waveform hyperspectral LiDAR for terrestrial laser scanning T Hakala, J Suomalainen, S Kaasalainen, Y Chen Optics express 20 (7), 7119-7127, 2012 | 242 | 2012 |
| Using UAV-based photogrammetry and hyperspectral imaging for mapping bark beetle damage at tree-level R Näsi, E Honkavaara, P Lyytikäinen-Saarenmaa, M Blomqvist, P Litkey, ... Remote Sensing 7 (11), 15467-15493, 2015 | 230 | 2015 |
| Individual tree detection and classification with UAV-based photogrammetric point clouds and hyperspectral imaging O Nevalainen, E Honkavaara, S Tuominen, N Viljanen, T Hakala, X Yu, ... Remote Sensing 9 (3), 185, 2017 | 222 | 2017 |
| Two-channel hyperspectral LiDAR with a supercontinuum laser source Y Chen, E Räikkönen, S Kaasalainen, J Suomalainen, T Hakala, ... Sensors 10 (7), 7057-7066, 2010 | 106 | 2010 |
| Polarised bidirectional reflectance factor measurements from soil, stones, and snow J Peltoniemi, T Hakala, J Suomalainen, E Puttonen Journal of Quantitative Spectroscopy and Radiative Transfer 110 (17), 1940-1953, 2009 | 86 | 2009 |
| Remote sensing of bark beetle damage in urban forests at individual tree level using a novel hyperspectral camera from UAV and aircraft R Näsi, E Honkavaara, M Blomqvist, P Lyytikäinen-Saarenmaa, T Hakala, ... Urban Forestry & Urban Greening 30, 72-83, 2018 | 74 | 2018 |
| Polarised multiangular reflectance measurements using the finnish geodetic institute field goniospectrometer J Suomalainen, T Hakala, J Peltoniemi, E Puttonen Sensors 9 (5), 3891-3907, 2009 | 74 | 2009 |
| Acquisition of bidirectional reflectance factor dataset using a micro unmanned aerial vehicle and a consumer camera T Hakala, J Suomalainen, JI Peltoniemi Remote Sensing 2 (3), 819-832, 2010 | 71 | 2010 |
| Hyperspectral reflectance signatures and point clouds for precision agriculture by light weight UAV imaging system E Honkavaara, J Kaivosoja, J Mäkynen, I Pellikka, L Pesonen, H Saari, ... ISPRS Ann. Photogramm. Remote Sens. Spat. Inf. Sci 7, 353-358, 2012 | 70 | 2012 |
| Tree species classification from fused active hyperspectral reflectance and LIDAR measurements E Puttonen, J Suomalainen, T Hakala, E Räikkönen, H Kaartinen, ... Forest Ecology and Management 260 (10), 1843-1852, 2010 | 69 | 2010 |
| Estimating biomass and nitrogen amount of barley and grass using UAV and aircraft based spectral and photogrammetric 3D features R Näsi, N Viljanen, J Kaivosoja, K Alhonoja, T Hakala, L Markelin, ... Remote Sensing 10 (7), 1082, 2018 | 65 | 2018 |
| A novel machine learning method for estimating biomass of grass swards using a photogrammetric canopy height model, images and vegetation indices captured by a drone N Viljanen, E Honkavaara, R Näsi, T Hakala, O Niemeläinen, J Kaivosoja Agriculture 8 (5), 70, 2018 | 65 | 2018 |
| Fast and nondestructive method for leaf level chlorophyll estimation using hyperspectral LiDAR O Nevalainen, T Hakala, J Suomalainen, R Mäkipää, M Peltoniemi, ... Agricultural and Forest Meteorology 198, 250-258, 2014 | 64 | 2014 |
| Spectral imaging from UAVs under varying illumination conditions T Hakala, E Honkavaara, H Saari, J Mäkynen, J Kaivosoja, L Pesonen, ... International Archives of the Photogrammetry, Remote Sensing and Spatial …, 2013 | 59 | 2013 |
| Classification of spruce and pine trees using active hyperspectral LiDAR J Vauhkonen, T Hakala, J Suomalainen, S Kaasalainen, O Nevalainen, ... IEEE Geoscience and Remote Sensing Letters 10 (5), 1138-1141, 2013 | 58 | 2013 |
| Polarised bidirectional reflectance factor measurements from vegetated land surfaces J Suomalainen, T Hakala, E Puttonen, J Peltoniemi Journal of Quantitative Spectroscopy and Radiative Transfer 110 (12), 1044-1056, 2009 | 56 | 2009 |
| SLAM-aided stem mapping for forest inventory with small-footprint mobile LiDAR J Tang, Y Chen, A Kukko, H Kaartinen, A Jaakkola, E Khoramshahi, ... Forests 6 (12), 4588-4606, 2015 | 54 | 2015 |
| Measurement of reflectance properties of asphalt surfaces and their usability as reference targets for aerial photos E Puttonen, J Suomalainen, T Hakala, J Peltoniemi IEEE Transactions on Geoscience and Remote Sensing 47 (7), 2330-2339, 2009 | 54 | 2009 |
| Soot on Snow experiment: bidirectional reflectance factor measurements of contaminated snow JI Peltoniemi, M Gritsevich, T Hakala, P Dagsson-Waldhauserová, ... The Cryosphere 9 (6), 2323-2337, 2015 | 51 | 2015 |
