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Teemu Hakala
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2020 – today
- 2025
- [j41]Zuoya Liu, Harri Kaartinen, Teemu Hakala, Juha Hyyppä, Antero Kukko, Ruizhi Chen:
Tracking foresters and mapping tree stem locations with decimeter-level accuracy under forest canopies using UWB. Expert Syst. Appl. 262: 125519 (2025) - 2024
- [j40]Ziyi Feng, Xiaowei Yu, Yuwei Chen, Eetu Puttonen, Teemu Hakala, Changhui Jiang, Juha Hyyppä:
Feasibility of using Ku-band helicopter-borne microwave radar for stem volume and biomass estimation in boreal forest. Int. J. Appl. Earth Obs. Geoinformation 131: 103966 (2024) - [j39]Jesse Muhojoki, Daniella Tavi, Eric Hyyppä, Matti Lehtomäki, Tamás Faitli, Harri Kaartinen, Antero Kukko, Teemu Hakala, Juha Hyyppä:
Benchmarking Under- and Above-Canopy Laser Scanning Solutions for Deriving Stem Curve and Volume in Easy and Difficult Boreal Forest Conditions. Remote. Sens. 16(10): 1721 (2024) - [j38]Tamás Faitli, Eric Hyyppä, Heikki Hyyti, Teemu Hakala, Harri Kaartinen, Antero Kukko, Jesse Muhojoki, Juha Hyyppä:
Integration of a Mobile Laser Scanning System with a Forest Harvester for Accurate Localization and Tree Stem Measurements. Remote. Sens. 16(17): 3292 (2024) - [j37]Zuoya Liu, Teemu Hakala, Juha Hyyppä, Antero Kukko, Harri Kaartinen, Ruizhi Chen:
Data-Driven Antenna Delay Calibration for UWB Devices for Network Positioning. IEEE Trans. Instrum. Meas. 73: 1-11 (2024) - [j36]Zuoya Liu, Harri Kaartinen, Teemu Hakala, Juha Hyyppä, Antero Kukko, Ruizhi Chen:
Performance Analysis of Standalone UWB Positioning Inside Forest Canopy. IEEE Trans. Instrum. Meas. 73: 1-14 (2024) - [i3]Julius Pesonen, Teemu Hakala, Väinö Karjalainen, Niko Koivumäki, Lauri Markelin, Anna-Maria Raita-Hakola, Juha Suomalainen, Ilkka Pölönen, Eija Honkavaara:
Detecting Wildfires on UAVs with Real-time Segmentation Trained by Larger Teacher Models. CoRR abs/2408.10843 (2024) - 2023
- [j35]Einari Heinaro, Topi Tanhuanpää, Mikko Vastaranta, Tuomas Yrttimaa, Antero Kukko, Teemu Hakala, Teppo Mattsson, Markus Holopainen:
Evaluating Factors Impacting Fallen Tree Detection from Airborne Laser Scanning Point Clouds. Remote. Sens. 15(2): 382 (2023) - [j34]Jaakko Oivukkamäki, Jon Atherton, Shan Xu, Anu Riikonen, Chao Zhang, Teemu Hakala, Eija Honkavaara, Albert Porcar-Castell:
Investigating Foliar Macro- and Micronutrient Variation with Chlorophyll Fluorescence and Reflectance Measurements at the Leaf and Canopy Scales in Potato. Remote. Sens. 15(10): 2498 (2023) - [j33]Emma Turkulainen, Eija Honkavaara, Roope Näsi, Raquel Alves Oliveira, Teemu Hakala, Samuli Junttila, Kirsi Karila, Niko Koivumäki, Mikko Pelto-Arvo, Johanna Tuviala, Madeleine Östersund, Ilkka Pölönen, Päivi Lyytikäinen-Saarenmaa:
Comparison of Deep Neural Networks in the Classification of Bark Beetle-Induced Spruce Damage Using UAS Images. Remote. Sens. 15(20): 4928 (2023) - 2022
- [j32]Heini Kanerva, Eija Honkavaara, Roope Näsi, Teemu Hakala, Samuli Junttila, Kirsi Karila, Niko Koivumäki, Raquel Alves Oliveira, Mikko Pelto-Arvo, Ilkka Pölönen, Johanna Tuviala, Madeleine Östersund, Päivi Lyytikäinen-Saarenmaa:
Estimating Tree Health Decline Caused by Ips typographus L. from UAS RGB Images Using a Deep One-Stage Object Detection Neural Network. Remote. Sens. 14(24): 6257 (2022) - [j31]Josef Taher, Teemu Hakala, Anttoni Jaakkola, Heikki Hyyti, Antero Kukko, Petri Manninen, Jyri Maanpää, Juha Hyyppä:
Feasibility of Hyperspectral Single Photon Lidar for Robust Autonomous Vehicle Perception. Sensors 22(15): 5759 (2022) - 2021
- [j30]Kai Du, Huaguo Huang, Ziyi Feng, Teemu Hakala, Yuwei Chen, Juha Hyyppä:
Using Microwave Profile Radar to Estimate Forest Canopy Leaf Area Index: Linking 3D Radiative Transfer Model and Forest Gap Model. Remote. Sens. 13(2): 297 (2021) - [j29]Hui Zhou, Yuwei Chen, Teemu Hakala, Ziyi Feng, Changhui Jiang, Jianxin Jia, Haibin Sun, Juha Hyyppä:
The Penetration Analysis of Airborne Ku-Band Radar Versus Satellite Infrared Lidar Based on the Height and Energy Percentiles in the Boreal Forest. Remote. Sens. 13(9): 1650 (2021) - 2020
- [j28]Yuwei Chen, Ziyi Feng, Fashuai Li, Hui Zhou, Teemu Hakala, Mika Karjalainen, Juha Hyyppä:
Lidar-aided analysis of boreal forest backscatter at Ku band. Int. J. Appl. Earth Obs. Geoinformation 91: 102133 (2020) - [j27]Hui Zhou, Yuwei Chen, Nan Hu, Yuandan Dong, Xinmin Xu, Ziyi Feng, Teemu Hakala, Juha Hyyppä:
The Determination of Effective Beamwidth of Ku Band Profiling Radar Based on Waveform Matching Method in the Boreal Forest of Finland. Remote. Sens. 12(17): 2710 (2020) - [j26]Kai Du, Huaguo Huang, Yuyi Zhu, Ziyi Feng, Teemu Hakala, Yuwei Chen, Juha Hyyppä:
Erratum: Du, K., et al. Simulation of Ku-Band Profile Radar Waveform by Extending Radiosity Applicable to Porous Individual Objects (RAPID2) Model. Remote Sensing 2020, 12, 684. Remote. Sens. 12(17): 2830 (2020) - [j25]Eric Hyyppä, Xiaowei Yu, Harri Kaartinen, Teemu Hakala, Antero Kukko, Mikko Vastaranta, Juha Hyyppä:
Comparison of Backpack, Handheld, Under-Canopy UAV, and Above-Canopy UAV Laser Scanning for Field Reference Data Collection in Boreal Forests. Remote. Sens. 12(20): 3327 (2020) - [c12]Shan Xu, Martha Arbayani Zaidan, Eija Honkavaara, Teemu Hakala, Niko Viljanen, Albert Porcar-Castell, Zhigang Liu, Jon Atherton:
On the Estimation of the Leaf Angle Distribution from Drone Based Photogrammetry. IGARSS 2020: 4379-4382
2010 – 2019
- 2019
- [j24]Juha Kainulainen, Sampo Salo, Janne Lahtinen, Guifré Molera Calvés, Jaakko Seppänen, Jaan Praks, Teemu Hakala, Yuwei Chen, Juha Hyyppä, Martin Unwin, Philip Jales, Gerhard Ressler, Tânia Casal, Josep Roselló:
Airborne Wind Vector Scatterometer for Sea Surface Measurements. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 12(7): 2470-2476 (2019) - 2018
- [j23]Ninni Saarinen, Mikko Vastaranta, Roope Näsi, Tomi Rosnell, Teemu Hakala, Eija Honkavaara, Michael A. Wulder, Ville Luoma, Antonio M. G. Tommaselli, Nilton Nobuhiro Imai, Eduardo A. W. Ribeiro, Raul B. Guimarães, Markus Holopainen, Juha Hyyppä:
Assessing Biodiversity in Boreal Forests with UAV-Based Photogrammetric Point Clouds and Hyperspectral Imaging. Remote. Sens. 10(2): 338 (2018) - [j22]Hui Zhou, Yuwei Chen, Ziyi Feng, Fashuai Li, Juha Hyyppä, Teemu Hakala, Mika Karjalainen, Changhui Jiang, Ling Pei:
The Comparison of Canopy Height Profiles Extracted from Ku-band Profile Radar Waveforms and LiDAR Data. Remote. Sens. 10(5): 701 (2018) - [j21]Sakari Tuominen, Roope Näsi, Eija Honkavaara, Andras Balazs, Teemu Hakala, Niko Viljanen, Ilkka Pölönen, Heikki Saari, Harri Ojanen:
Assessment of Classifiers and Remote Sensing Features of Hyperspectral Imagery and Stereo-Photogrammetric Point Clouds for Recognition of Tree Species in a Forest Area of High Species Diversity. Remote. Sens. 10(5): 714 (2018) - [j20]Roope Näsi, Niko Viljanen, Jere Kaivosoja, Katja Alhonoja, Teemu Hakala, Lauri Markelin, Eija Honkavaara:
Estimating Biomass and Nitrogen Amount of Barley and Grass Using UAV and Aircraft Based Spectral and Photogrammetric 3D Features. Remote. Sens. 10(7): 1082 (2018) - [j19]Juha Suomalainen, Teemu Hakala, Raquel Alves de Oliveira, Lauri Markelin, Niko Viljanen, Roope Näsi, Eija Honkavaara:
A Novel Tilt Correction Technique for Irradiance Sensors and Spectrometers On-Board Unmanned Aerial Vehicles. Remote. Sens. 10(12): 2068 (2018) - [j18]Mariana Batista Campos, Antonio M. G. Tommaselli, Eija Honkavaara, Fabricio dos Santos Prol, Harri Kaartinen, Aimad El Issaoui, Teemu Hakala:
A Backpack-Mounted Omnidirectional Camera with Off-the-Shelf Navigation Sensors for Mobile Terrestrial Mapping: Development and Forest Application. Sensors 18(3): 827 (2018) - [j17]Teemu Hakala, Lauri Markelin, Eija Honkavaara, Barry Scott, Theo Theocharous, Olli Nevalainen, Roope Näsi, Juha Suomalainen, Niko Viljanen, Claire Greenwell, Nigel Fox:
Direct Reflectance Measurements from Drones: Sensor Absolute Radiometric Calibration and System Tests for Forest Reflectance Characterization. Sensors 18(5): 1417 (2018) - [j16]Hui Zhou, Yuwei Chen, Juha Hyyppä, Ziyi Feng, Fashuai Li, Teemu Hakala, Xinmin Xu, Xiaolei Zhu:
Estimation of Canopy Height Using an Airborne Ku-Band Frequency-Modulated Continuous Waveform Profiling Radar. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 11(10): 3590-3597 (2018) - [j15]Ziyi Feng, Yuwei Chen, Juha Hyyppä, Teemu Hakala, Hui Zhou, Yunsheng Wang, Mika Karjalainen:
Estimating Ground Level and Canopy Top Elevation With Airborne Microwave Profiling Radar. IEEE Trans. Geosci. Remote. Sens. 56(4): 2283-2294 (2018) - [c11]Juha Kainulainen, Sampo Salo, Janne Lahtinen, Guifré Molera Calvés, Jaakko Seppänen, Jaan Praks, Teemu Hakala, Yuwei Chen, Juha Hyyppä, Martin Unwin, Philip Jales, Gerhard Ressler, Tania Casal, Josep Roselló:
Fully Polarimetric Airborne Wind Vector Scatterometer to Support Space-Borne Gnss-R Measurements. IGARSS 2018: 2011-2014 - [c10]Jon Atherton, Alasdair MacArthur, Teemu Hakala, Kadmiel Maseyk, Iain Robinson, Weiwei Liu, Eija Honkavaara, Albert Porcar-Castell:
Drone Measurements of Solar-Induced Chlorophyll Fluorescence Acquired with a Low-Weight DFOV Spectrometer System. IGARSS 2018: 8834-8836 - [c9]Ilkka Pölönen, Leevi Annala, Samuli Rahkonen, Olli Nevalainen, Eija Honkavaara, Sakari Tuominen, Niko Viljanen, Teemu Hakala:
Tree Species Identification Using 3D Spectral Data and 3D Convolutional Neural Network. WHISPERS 2018: 1-5 - [i2]Nikos Fotiou, George Xylomenos, George C. Polyzos, Hasan M. A. Islam, Dmitrij Lagutin, Teemu Hakala, Eero Hakala:
ICN enabling CoAP Extensions for IP based IoT devices. CoRR abs/1802.05198 (2018) - 2017
- [j14]Yuwei Chen, Teemu Hakala, Mika Karjalainen, Ziyi Feng, Jian Tang, Paula Litkey, Antero Kukko, Anttoni Jaakkola, Juha Hyyppä:
UAV-Borne Profiling Radar for Forest Research. Remote. Sens. 9(1): 58 (2017) - [j13]Olli Nevalainen, Eija Honkavaara, Sakari Tuominen, Niko Viljanen, Teemu Hakala, Xiaowei Yu, Juha Hyyppä, Heikki Saari, Ilkka Pölönen, Nilton Nobuhiro Imai, Antonio M. G. Tommaselli:
Individual Tree Detection and Classification with UAV-Based Photogrammetric Point Clouds and Hyperspectral Imaging. Remote. Sens. 9(3): 185 (2017) - [j12]Livia Piermattei, Markus Hollaus, Milutin Milenkovic, Norbert Pfeifer, Raphael Quast, Yuwei Chen, Teemu Hakala, Mika Karjalainen, Juha Hyyppä, Wolfgang Wagner:
An Analysis of Ku-Band Profiling Radar Observations of Boreal Forest. Remote. Sens. 9(12): 1252 (2017) - [c8]Nikos Fotiou, George Xylomenos, George C. Polyzos, Hasan M. A. Islam, Dmitrij Lagutin, Teemu Hakala, Eero Hakala:
ICN enabling CoAP extensions for IP based IoT devices. ICN 2017: 218-219 - [c7]Jere Kaivosoja, Roope Näsi, Teemu Hakala, Niko Viljanen, Eija Honkavaara:
Different Remote Sensing Data in Relative Biomass Determination and in Precision Fertilization Task Generation for Cereal Crops. HAICTA (Revised Selected Papers) 2017: 164-176 - [c6]Jere Kaivosoja, Roope Näsi, Teemu Hakala, Niko Viljanen, Eija Honkavaara:
Applying Different Remote Sensing Data to Determine Relative Biomass Estimations of Cereals for Precision Fertilization Task Generation. HAICTA 2017: 670-680 - [i1]Nikos Fotiou, Hasan M. A. Islam, Dmitrij Lagutin, Teemu Hakala, George C. Polyzos:
CoAP over ICN. CoRR abs/1707.03233 (2017) - 2016
- [j11]Eija Honkavaara, Matti A. Eskelinen, Ilkka Pölönen, Heikki Saari, Harri Ojanen, Rami Mannila, Christer Holmlund, Teemu Hakala, Paula Litkey, Tomi Rosnell, Niko Viljanen, Merja Pulkkanen:
Remote Sensing of 3-D Geometry and Surface Moisture of a Peat Production Area Using Hyperspectral Frame Cameras in Visible to Short-Wave Infrared Spectral Ranges Onboard a Small Unmanned Airborne Vehicle (UAV). IEEE Trans. Geosci. Remote. Sens. 54(9): 5440-5454 (2016) - [c5]Ziyi Feng, Yuwei Chen, Teemu Hakala, Juha Hyyppä:
Range calibration of airborne profiling radar used in forest inventory. IGARSS 2016: 6672-6675 - [c4]Nikos Fotiou, Hasan M. A. Islam, Dmitrij Lagutin, Teemu Hakala, George C. Polyzos:
CoAP over ICN. NTMS 2016: 1-4 - [c3]Yuwei Chen, Jian Tang, Ehsan Khoramshahi, Teemu Hakala, Harri Kaartinen, Anttoni Jaakkola, Juha Hyyppä, Zhen Zhu, Ruizhi Chen:
Scan matching technology for forest navigation with map information. PLANS 2016: 198-203 - 2015
- [j10]Samuli Junttila, Sanna Kaasalainen, Mikko Vastaranta, Teemu Hakala, Olli Nevalainen, Markus Holopainen:
Investigating Bi-Temporal Hyperspectral Lidar Measurements from Declined Trees - Experiences from Laboratory Test. Remote. Sens. 7(10): 13863-13877 (2015) - [j9]Roope Näsi, Eija Honkavaara, Päivi Lyytikäinen-Saarenmaa, Minna Blomqvist, Paula Litkey, Teemu Hakala, Niko Viljanen, Tuula Kantola, Topi Tanhuanpää, Markus Holopainen:
Using UAV-Based Photogrammetry and Hyperspectral Imaging for Mapping Bark Beetle Damage at Tree-Level. Remote. Sens. 7(11): 15467-15493 (2015) - 2013
- [j8]Jari Vauhkonen, Teemu Hakala, Juha Suomalainen, Sanna Kaasalainen, Olli Nevalainen, Mikko Vastaranta, Markus Holopainen, Juha Hyyppä:
Classification of Spruce and Pine Trees Using Active Hyperspectral LiDAR. IEEE Geosci. Remote. Sens. Lett. 10(5): 1138-1141 (2013) - [j7]Eija Honkavaara, Heikki Saari, Jere Kaivosoja, Ilkka Pölönen, Teemu Hakala, Paula Litkey, Jussi Mäkynen, Liisa Pesonen:
Processing and Assessment of Spectrometric, Stereoscopic Imagery Collected Using a Lightweight UAV Spectral Camera for Precision Agriculture. Remote. Sens. 5(10): 5006-5039 (2013) - 2010
- [j6]Teemu Hakala, Juha Suomalainen, Jouni I. Peltoniemi:
Acquisition of Bidirectional Reflectance Factor Dataset Using a Micro Unmanned Aerial Vehicle and a Consumer Camera. Remote. Sens. 2(3): 819-832 (2010) - [j5]Eija Honkavaara, Teemu Hakala, Jouni Peltoniemi, Juha Suomalainen, Eero Ahokas, Lauri Markelin:
Analysis of Properties of Reflectance Reference Targets for Permanent Radiometric Test Sites of High Resolution Airborne Imaging Systems. Remote. Sens. 2(8): 1892-1917 (2010) - [j4]Jouni I. Peltoniemi, Terhikki Manninen, Juha Suomalainen, Teemu Hakala, Eetu Puttonen, Aku Riihelä:
Land Surface Albedos Computed from BRF Measurements with a Study of Conversion Formulae. Remote. Sens. 2(8): 1918-1940 (2010) - [j3]Yuwei Chen, Esa Räikkönen, Sanna Kaasalainen, Juha Suomalainen, Teemu Hakala, Juha Hyyppä, Ruizhi Chen:
Two-channel Hyperspectral LiDAR with a Supercontinuum Laser Source. Sensors 10(7): 7057-7066 (2010) - [c2]Sanna Kaasalainen, Juha Suomalainen, Teemu Hakala, Yuwei Chen, Esa Räikkönen, Eetu Puttonen, Harri Kaartinen:
Active hyperspectral LIDAR methods for object classification. WHISPERS 2010: 1-4
2000 – 2009
- 2009
- [j2]Juha Suomalainen, Teemu Hakala, Jouni Peltoniemi, Eetu Puttonen:
Polarised Multiangular Reflectance Measurements Using the Finnish Geodetic Institute Field Goniospectrometer. Sensors 9(5): 3891-3907 (2009) - [j1]Eetu Puttonen, Juha Suomalainen, Teemu Hakala, Jouni Peltoniemi:
Measurement of Reflectance Properties of Asphalt Surfaces and Their Usability as Reference Targets for Aerial Photos. IEEE Trans. Geosci. Remote. Sens. 47(7-2): 2330-2339 (2009) - [c1]Jean-Louis Roujean, Terhikki Manninen, Anna Kontu, Jouni Peltoniemi, Olivier Hautecoeur, Aku Riihelä, Panu Lahtinen, Niilo Siljamo, Hanne Suokanerva, Timo Sukuvaara, Sanna Kaasalainen, Osmo Aulamo, Veijo Aaltonen, Laura Thölix, Juha Karhu, Juha Suomalainen, Teemu Hakala, Harri Kaartinen:
SNORTEX (Snow Reflectance Transition Experiment): Remote Sensing Measurement of the Dynamic Properties of the Boreal Snow-forest in Support to Climate and Weather Forecast: Report of IOP-2008. IGARSS (2) 2009: 859-862
Coauthor Index
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