Teemu Hakala

63 papers A 1C 4Journal 50Unranked 8
YearRankTypeTitle / Venue / Authors
2025 J jnl
Benchmarking individual tree segmentation using multispectral airborne laser scanning data: the FGI-EMIT dataset.
CoRR
Lassi Ruoppa, Tarmo Hietala, Verneri Seppänen, Josef Taher, Teemu Hakala, Xiaowei Yu, Antero Kukko, Harri Kaartinen, Juha Hyyppä
2025 J jnl
Deep Learning-based Robust Autonomous Navigation of Aerial Robots in Dense Forests.
CoRR
Guglielmo Del Col, Väinö Karjalainen, Teemu Hakala, Yibo Zhang, Eija Honkavaara
2025 A conf
Detecting Wildfires on UAVs with Real-Time Segmentation Trained by Larger Teacher Models.
WACV
Julius Pesonen, Teemu Hakala, Väinö Karjalainen, Niko Koivumäki, Lauri Markelin, Anna-Maria Raita-Hakola, Juha Suomalainen, Ilkka Pölönen, Eija Honkavaara
2025 J jnl
Field evaluation and optimization of a lightweight lidar-based UAV navigation system for dense boreal forest environments.
CoRR
Aleksi Karhunen, Teemu Hakala, Väinö Karjalainen, Eija Honkavaara
2025 J jnl
Towards autonomous photogrammetric forest inventory using a lightweight under-canopy robotic drone.
CoRR
Väinö Karjalainen, Niko Koivumäki, Teemu Hakala, Jesse Muhojoki, Eric Hyyppä, Anand George, Juha Suomalainen, Eija Honkavaara
2025 J jnl
Tracking foresters and mapping tree stem locations with decimeter-level accuracy under forest canopies using UWB.
Expert Syst. Appl.
Zuoya Liu, Harri Kaartinen, Teemu Hakala, Juha Hyyppä, Antero Kukko, Ruizhi Chen
2025 J jnl
Ultra-Wideband-Based Method for Measuring Tree Positions With Decimeter-Level Accuracy Under a Forest Canopy.
IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.
Zuoya Liu, Harri Kaartinen, Teemu Hakala, Heikki Hyyti, Juha Hyyppä, Antero Kukko, Ruizhi Chen, Mikko Vastaranta
2024 J jnl
Benchmarking Under- and Above-Canopy Laser Scanning Solutions for Deriving Stem Curve and Volume in Easy and Difficult Boreal Forest Conditions.
Remote. Sens.
Jesse Muhojoki, Daniella Tavi, Eric Hyyppä, Matti Lehtomäki, Tamás Faitli, Harri Kaartinen, Antero Kukko, Teemu Hakala, Juha Hyyppä
2024 J jnl
Data-Driven Antenna Delay Calibration for UWB Devices for Network Positioning.
IEEE Trans. Instrum. Meas.
Zuoya Liu, Teemu Hakala, Juha Hyyppä, Antero Kukko, Harri Kaartinen, Ruizhi Chen
2024 J jnl
Detecting Wildfires on UAVs with Real-time Segmentation Trained by Larger Teacher Models.
CoRR
Julius Pesonen, Teemu Hakala, Väinö Karjalainen, Niko Koivumäki, Lauri Markelin, Anna-Maria Raita-Hakola, Juha Suomalainen, Ilkka Pölönen, Eija Honkavaara
2024 J jnl
Feasibility of using Ku-band helicopter-borne microwave radar for stem volume and biomass estimation in boreal forest.
Int. J. Appl. Earth Obs. Geoinformation
Ziyi Feng, Xiaowei Yu, Yuwei Chen, Eetu Puttonen, Teemu Hakala, Changhui Jiang, Juha Hyyppä
2024 J jnl
Integration of a Mobile Laser Scanning System with a Forest Harvester for Accurate Localization and Tree Stem Measurements.
Remote. Sens.
Tamás Faitli, Eric Hyyppä, Heikki Hyyti, Teemu Hakala, Harri Kaartinen, Antero Kukko, Jesse Muhojoki, Juha Hyyppä
2024 J jnl
Performance Analysis of Standalone UWB Positioning Inside Forest Canopy.
IEEE Trans. Instrum. Meas.
Zuoya Liu, Harri Kaartinen, Teemu Hakala, Juha Hyyppä, Antero Kukko, Ruizhi Chen
2024 J jnl
Unsupervised semantic segmentation of urban high-density multispectral point clouds.
CoRR
Oona Oinonen, Lassi Ruoppa, Josef Taher, Matti Lehtomäki, Leena Matikainen, Kirsi Karila, Teemu Hakala, Antero Kukko, Harri Kaartinen, Juha Hyyppä
2023 J jnl
Comparison of Deep Neural Networks in the Classification of Bark Beetle-Induced Spruce Damage Using UAS Images.
Remote. Sens.
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
2023 J jnl
Evaluating Factors Impacting Fallen Tree Detection from Airborne Laser Scanning Point Clouds.
Remote. Sens.
Einari Heinaro, Topi Tanhuanpää, Mikko Vastaranta, Tuomas Yrttimaa, Antero Kukko, Teemu Hakala, Teppo Mattsson, Markus Holopainen
2023 J jnl
Investigating Foliar Macro- and Micronutrient Variation with Chlorophyll Fluorescence and Reflectance Measurements at the Leaf and Canopy Scales in Potato.
Remote. Sens.
Jaakko Oivukkamäki, Jon Atherton, Shan Xu, Anu Riikonen, Chao Zhang, Teemu Hakala, Eija Honkavaara, Albert Porcar-Castell
2022 J jnl
Estimating Tree Health Decline Caused by Ips typographus L. from UAS RGB Images Using a Deep One-Stage Object Detection Neural Network.
Remote. Sens.
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
2022 J jnl
Feasibility of Hyperspectral Single Photon Lidar for Robust Autonomous Vehicle Perception.
Sensors
Josef Taher, Teemu Hakala, Anttoni Jaakkola, Heikki Hyyti, Antero Kukko, Petri Manninen, Jyri Maanpää, Juha Hyyppä
2021 J jnl
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.
Hui Zhou, Yuwei Chen, Teemu Hakala, Ziyi Feng, Changhui Jiang, Jianxin Jia, Haibin Sun, Juha Hyyppä
2021 J jnl
Using Microwave Profile Radar to Estimate Forest Canopy Leaf Area Index: Linking 3D Radiative Transfer Model and Forest Gap Model.
Remote. Sens.
Kai Du, Huaguo Huang, Ziyi Feng, Teemu Hakala, Yuwei Chen, Juha Hyyppä
2020 J jnl
Comparison of Backpack, Handheld, Under-Canopy UAV, and Above-Canopy UAV Laser Scanning for Field Reference Data Collection in Boreal Forests.
Remote. Sens.
Eric Hyyppä, Xiaowei Yu, Harri Kaartinen, Teemu Hakala, Antero Kukko, Mikko Vastaranta, Juha Hyyppä
2020 J jnl
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.
Kai Du, Huaguo Huang, Yuyi Zhu, Ziyi Feng, Teemu Hakala, Yuwei Chen, Juha Hyyppä
2020 J jnl
Lidar-aided analysis of boreal forest backscatter at Ku band.
Int. J. Appl. Earth Obs. Geoinformation
Yuwei Chen, Ziyi Feng, Fashuai Li, Hui Zhou, Teemu Hakala, Mika Karjalainen, Juha Hyyppä
2020 C conf
On the Estimation of the Leaf Angle Distribution from Drone Based Photogrammetry.
IGARSS
Shan Xu, Martha Arbayani Zaidan, Eija Honkavaara, Teemu Hakala, Niko Viljanen, Albert Porcar-Castell, Zhigang Liu, Jon Atherton
2020 J jnl
The Determination of Effective Beamwidth of Ku Band Profiling Radar Based on Waveform Matching Method in the Boreal Forest of Finland.
Remote. Sens.
Hui Zhou, Yuwei Chen, Nan Hu, Yuandan Dong, Xinmin Xu, Ziyi Feng, Teemu Hakala, Juha Hyyppä
2019 J jnl
Airborne Wind Vector Scatterometer for Sea Surface Measurements.
IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.
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
2018 J jnl
A Backpack-Mounted Omnidirectional Camera with Off-the-Shelf Navigation Sensors for Mobile Terrestrial Mapping: Development and Forest Application.
Sensors
Mariana Batista Campos, Antonio M. G. Tommaselli, Eija Honkavaara, Fabricio dos Santos Prol, Harri Kaartinen, Aimad El Issaoui, Teemu Hakala
2018 J jnl
A Novel Tilt Correction Technique for Irradiance Sensors and Spectrometers On-Board Unmanned Aerial Vehicles.
Remote. Sens.
Juha Suomalainen, Teemu Hakala, Raquel Alves de Oliveira, Lauri Markelin, Niko Viljanen, Roope Näsi, Eija Honkavaara
2018 J jnl
Assessing Biodiversity in Boreal Forests with UAV-Based Photogrammetric Point Clouds and Hyperspectral Imaging.
Remote. Sens.
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
2018 J jnl
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.
Sakari Tuominen, Roope Näsi, Eija Honkavaara, Andras Balazs, Teemu Hakala, Niko Viljanen, Ilkka Pölönen, Heikki Saari, Harri Ojanen
2018 J jnl
Direct Reflectance Measurements from Drones: Sensor Absolute Radiometric Calibration and System Tests for Forest Reflectance Characterization.
Sensors
Teemu Hakala, Lauri Markelin, Eija Honkavaara, Barry Scott, Theo Theocharous, Olli Nevalainen, Roope Näsi, Juha Suomalainen, Niko Viljanen, Claire Greenwell, Nigel Fox
2018 C conf
Drone Measurements of Solar-Induced Chlorophyll Fluorescence Acquired with a Low-Weight DFOV Spectrometer System.
IGARSS
Jon Atherton, Alasdair MacArthur, Teemu Hakala, Kadmiel Maseyk, Iain Robinson, Weiwei Liu, Eija Honkavaara, Albert Porcar-Castell
2018 J jnl
Estimating Biomass and Nitrogen Amount of Barley and Grass Using UAV and Aircraft Based Spectral and Photogrammetric 3D Features.
Remote. Sens.
Roope Näsi, Niko Viljanen, Jere Kaivosoja, Katja Alhonoja, Teemu Hakala, Lauri Markelin, Eija Honkavaara
2018 J jnl
Estimating Ground Level and Canopy Top Elevation With Airborne Microwave Profiling Radar.
IEEE Trans. Geosci. Remote. Sens.
Ziyi Feng, Yuwei Chen, Juha Hyyppä, Teemu Hakala, Hui Zhou, Yunsheng Wang, Mika Karjalainen
2018 J jnl
Estimation of Canopy Height Using an Airborne Ku-Band Frequency-Modulated Continuous Waveform Profiling Radar.
IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.
Hui Zhou, Yuwei Chen, Juha Hyyppä, Ziyi Feng, Fashuai Li, Teemu Hakala, Xinmin Xu, Xiaolei Zhu
2018 C conf
Fully Polarimetric Airborne Wind Vector Scatterometer to Support Space-Borne Gnss-R Measurements.
IGARSS
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
2018 J jnl
ICN enabling CoAP Extensions for IP based IoT devices.
CoRR
Nikos Fotiou, George Xylomenos, George C. Polyzos, Hasan M. A. Islam, Dmitrij Lagutin, Teemu Hakala, Eero Hakala
2018 J jnl
The Comparison of Canopy Height Profiles Extracted from Ku-band Profile Radar Waveforms and LiDAR Data.
Remote. Sens.
Hui Zhou, Yuwei Chen, Ziyi Feng, Fashuai Li, Juha Hyyppä, Teemu Hakala, Mika Karjalainen, Changhui Jiang, Ling Pei
2018 — conf
Tree Species Identification Using 3D Spectral Data and 3D Convolutional Neural Network.
WHISPERS
Ilkka Pölönen, Leevi Annala, Samuli Rahkonen, Olli Nevalainen, Eija Honkavaara, Sakari Tuominen, Niko Viljanen, Teemu Hakala
2017 J jnl
An Analysis of Ku-Band Profiling Radar Observations of Boreal Forest.
Remote. Sens.
Livia Piermattei, Markus Hollaus, Milutin Milenkovic, Norbert Pfeifer, Raphael Quast, Yuwei Chen, Teemu Hakala, Mika Karjalainen, Juha Hyyppä, Wolfgang Wagner
2017 — conf
Applying Different Remote Sensing Data to Determine Relative Biomass Estimations of Cereals for Precision Fertilization Task Generation.
HAICTA
Jere Kaivosoja, Roope Näsi, Teemu Hakala, Niko Viljanen, Eija Honkavaara
2017 J jnl
CoAP over ICN.
CoRR
Nikos Fotiou, Hasan M. A. Islam, Dmitrij Lagutin, Teemu Hakala, George C. Polyzos
2017 — conf
Different Remote Sensing Data in Relative Biomass Determination and in Precision Fertilization Task Generation for Cereal Crops.
HAICTA (Revised Selected Papers)
Jere Kaivosoja, Roope Näsi, Teemu Hakala, Niko Viljanen, Eija Honkavaara
2017 — conf
ICN enabling CoAP extensions for IP based IoT devices.
ICN
Nikos Fotiou, George Xylomenos, George C. Polyzos, Hasan M. A. Islam, Dmitrij Lagutin, Teemu Hakala, Eero Hakala
2017 J jnl
Individual Tree Detection and Classification with UAV-Based Photogrammetric Point Clouds and Hyperspectral Imaging.
Remote. Sens.
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
2017 J jnl
UAV-Borne Profiling Radar for Forest Research.
Remote. Sens.
Yuwei Chen, Teemu Hakala, Mika Karjalainen, Ziyi Feng, Jian Tang, Paula Litkey, Antero Kukko, Anttoni Jaakkola, Juha Hyyppä
2016 — conf
CoAP over ICN.
NTMS
Nikos Fotiou, Hasan M. A. Islam, Dmitrij Lagutin, Teemu Hakala, George C. Polyzos
2016 C conf
Range calibration of airborne profiling radar used in forest inventory.
IGARSS
Ziyi Feng, Yuwei Chen, Teemu Hakala, Juha Hyyppä
2016 J jnl
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.
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
2016 — conf
Scan matching technology for forest navigation with map information.
PLANS
Yuwei Chen, Jian Tang, Ehsan Khoramshahi, Teemu Hakala, Harri Kaartinen, Anttoni Jaakkola, Juha Hyyppä, Zhen Zhu, Ruizhi Chen
2015 J jnl
Investigating Bi-Temporal Hyperspectral Lidar Measurements from Declined Trees - Experiences from Laboratory Test.
Remote. Sens.
Samuli Junttila, Sanna Kaasalainen, Mikko Vastaranta, Teemu Hakala, Olli Nevalainen, Markus Holopainen
2015 J jnl
Using UAV-Based Photogrammetry and Hyperspectral Imaging for Mapping Bark Beetle Damage at Tree-Level.
Remote. Sens.
Roope Näsi, Eija Honkavaara, Päivi Lyytikäinen-Saarenmaa, Minna Blomqvist, Paula Litkey, Teemu Hakala, Niko Viljanen, Tuula Kantola, Topi Tanhuanpää, Markus Holopainen
2013 J jnl
Classification of Spruce and Pine Trees Using Active Hyperspectral LiDAR.
IEEE Geosci. Remote. Sens. Lett.
Jari Vauhkonen, Teemu Hakala, Juha Suomalainen, Sanna Kaasalainen, Olli Nevalainen, Mikko Vastaranta, Markus Holopainen, Juha Hyyppä
2013 J jnl
Processing and Assessment of Spectrometric, Stereoscopic Imagery Collected Using a Lightweight UAV Spectral Camera for Precision Agriculture.
Remote. Sens.
Eija Honkavaara, Heikki Saari, Jere Kaivosoja, Ilkka Pölönen, Teemu Hakala, Paula Litkey, Jussi Mäkynen, Liisa Pesonen
2010 J jnl
Acquisition of Bidirectional Reflectance Factor Dataset Using a Micro Unmanned Aerial Vehicle and a Consumer Camera.
Remote. Sens.
Teemu Hakala, Juha Suomalainen, Jouni I. Peltoniemi
2010 — conf
Active hyperspectral LIDAR methods for object classification.
WHISPERS
Sanna Kaasalainen, Juha Suomalainen, Teemu Hakala, Yuwei Chen, Esa Räikkönen, Eetu Puttonen, Harri Kaartinen
2010 J jnl
Analysis of Properties of Reflectance Reference Targets for Permanent Radiometric Test Sites of High Resolution Airborne Imaging Systems.
Remote. Sens.
Eija Honkavaara, Teemu Hakala, Jouni Peltoniemi, Juha Suomalainen, Eero Ahokas, Lauri Markelin
2010 J jnl
Land Surface Albedos Computed from BRF Measurements with a Study of Conversion Formulae.
Remote. Sens.
Jouni I. Peltoniemi, Terhikki Manninen, Juha Suomalainen, Teemu Hakala, Eetu Puttonen, Aku Riihelä
2010 J jnl
Two-channel Hyperspectral LiDAR with a Supercontinuum Laser Source.
Sensors
Yuwei Chen, Esa Räikkönen, Sanna Kaasalainen, Juha Suomalainen, Teemu Hakala, Juha Hyyppä, Ruizhi Chen
2009 J jnl
Measurement of Reflectance Properties of Asphalt Surfaces and Their Usability as Reference Targets for Aerial Photos.
IEEE Trans. Geosci. Remote. Sens.
Eetu Puttonen, Juha Suomalainen, Teemu Hakala, Jouni Peltoniemi
2009 J jnl
Polarised Multiangular Reflectance Measurements Using the Finnish Geodetic Institute Field Goniospectrometer.
Sensors
Juha Suomalainen, Teemu Hakala, Jouni Peltoniemi, Eetu Puttonen
2009 — conf
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)
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