Algorithms and methods of airborne laser scanning for forest measurements J Hyyppä, H Hyyppä, P Litkey, X Yu, H Haggrén, P Rönnholm, U Pyysalo, ... International archives of photogrammetry, remote sensing and spatial …, 2004 | 221 | 2004 |
Factors affecting the quality of DTM generation in forested areas H Hyyppä, X Yu, J Hyyppä, H Kaartinen, S Kaasalainen, E Honkavaara, ... International Archives of Photogrammetry, Remote Sensing and Spatial …, 2005 | 119 | 2005 |
Integration of laser scanning and photogrammetry P Rönnholm, E Honkavaara, P Litkey, H Hyyppä, J Hyyppä International Archives of Photogrammetry, Remote Sensing and Spatial …, 2007 | 88 | 2007 |
Road environment mapping system of the Finnish Geodetic Institute–FGI Roamer A Kukko, CO Andrei, VM Salminen, H Kaartinen, Y Chen, P Rönnholm, ... Int. Arch. Photogramm. Remote Sens. Spat. Inf. Sci 36, 241-247, 2007 | 74 | 2007 |
Calibration of laser-derived tree height estimates by means of photogrammetric techniques P Rönnholm, J Hyyppä, H Hyyppä, H Haggrén, X Yu, H Kaartinen Scandinavian Journal of Forest Research 19 (6), 524-528, 2004 | 60 | 2004 |
Comparison of measurement techniques and static theory applied to concrete beam deformation P Rönnholm, M Nuikka, A Suominen, P Salo, H Hyyppä, P Pöntinen, ... The Photogrammetric Record 24 (128), 351-371, 2009 | 34 | 2009 |
Map updating and change detection using vehicle-based laser scanning J Hyyppa, A Jaakkola, H Hyyppa, H Kaartinen, A Kukko, M Holopainen, ... 2009 Joint Urban Remote Sensing Event, 1-6, 2009 | 34 | 2009 |
Measuring the growth of individual trees using multi-temporal airborne laser scanning point clouds X Yu, J Hyyppä, H Kaartinen, H Hyyppä, M Maltamo, P Rönnholm Proceedings of ISPRS Workshop Laser Scanning 2005, 204-208, 2005 | 33 | 2005 |
QUALITY ANALYSIS AND CORRECTION OF MOBILE BACKPACK LASER SCANNING DATA. P Rönnholm, X Liang, A Kukko, A Jaakkola, J Hyyppä ISPRS Annals of Photogrammetry, Remote Sensing & Spatial Information …, 2016 | 23 | 2016 |
Registration quality-towards integration of laser scanning and photogrammetry P Rönnholm EuroSDR, 2011 | 19 | 2011 |
Ray tracing for modeling of small footprint airborne laser scanning returns F Morsdorf, O Frey, B Koetz, E Meier International Archives of the Photogrammetry, Remote Sensing and Spatial …, 2007 | 18 | 2007 |
Detection of harvested trees and estimation of forest growth using laser scanning X Yu, J Hyyppä, P Rönnholm, H Kaartinen, M Maltamo, H Hyyppä Proceedings of the scandLaser scientific workshop on airborne laser scanning …, 2003 | 18 | 2003 |
Factors affecting laser-derived object-oriented forest height growth estimation J Hyyppä, X Yu, P Rönnholm, H Kaartinen, H Hyyppä The Photogrammetric Journal of Finland 18 (2), 16-31, 2003 | 18 | 2003 |
Waveform features for tree identification P Litkey, P Rönnholm, J Lumme, X Liang Proceedings of the ISPRS Workshop “Laser Scanning 2007 and SilviLaser 2007 …, 2007 | 17 | 2007 |
A comparison between one‐and two‐field 60° fundus photography when screening for diabetic retinopathy G Von Wendt, P Rönnholm, K Heikkilä, P Summanen Acta Ophthalmologica Scandinavica 78 (1), 14-20, 2000 | 17 | 2000 |
Factors affecting object-oriented forest growth estimates obtained using laser scanning J Hyyppä, X Yu, P Rönnholm, H Kaartinen, H Hyyppä The photogrammetric journal of Finland 18, 16-31, 2003 | 16 | 2003 |
The accuracy of large-area forest canopy cover estimation using Landsat in boreal region L Korhonen, A Hovi, P Rönnholm, M Rautiainen International journal of applied earth observation and geoinformation 53 …, 2016 | 15 | 2016 |
A method for interactive orientation of digital images using backprojection of 3D data P Rönnholm, H Hyyppä, P Pöntinen, H Haggrén, J Hyyppä The Photogrammetric Journal of Finland 18 (2), 16-31, 2003 | 15 | 2003 |
The evaluation of the internal quality of laser scanning strips using the interactive orientation method and point clouds P Rönnholm The International Archives of Photogrammetry, Remote Sensing and Spatial …, 2004 | 14 | 2004 |
Comparison of three accurate 3D measurement methods for evaluating as-built floor flatness M Nuikka, P Rönnholm, H Kaartinen, A Kukko, A Suominen, P Salo, ... The International Archives of the Photogrammetry, Remote Sensing and Spatial …, 2008 | 13 | 2008 |