Teemu Hakala

Publication Activity (10 Years)

Years Active: 2009-2024
Publications (10 Years): 41

Top Topics

Top Venues

Publications

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 (2024)
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 (2024)
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 (2024)
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) (2024)
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) (2023)
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) (2023)
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) (2023)
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) (2022)
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) (2022)
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) (2021)
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) (2021)
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)
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) (2020)
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) (2020)
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) (2020)
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 (2020)
Juha Kainulainen, Sampo Salo, Janne Lahtinen, Guifre Molera, Jaakko Seppänen, Jaan Praks, Teemu Hakala, Yuwei Chen, Juha Hyyppä, Martin Unwin, Philip Jales, Gerhard Ressler, Tânia Casal, Josep Rosello
Airborne Wind Vector Scatterometer for Sea Surface Measurements. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 12 (7) (2019)
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 (2018)
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)
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) (2018)
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) (2018)
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)
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) (2018)
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) (2018)
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) (2018)
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) (2018)
Juha Kainulainen, Sampo Salo, Janne Lahtinen, Guifre Molera, Jaakko Seppänen, Jaan Praks, Teemu Hakala, Yuwei Chen, Juha Hyyppä, Martin Unwin, Philip Jales, Gerhard Ressler, Tania Casal, Josep Rosello
Fully Polarimetric Airborne Wind Vector Scatterometer to Support Space-Borne Gnss-R Measurements. IGARSS (2018)
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) (2018)
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) (2018)
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) (2018)
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)
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)
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) (2017)
Nikos Fotiou, Hasan M. A. Islam, Dmitrij Lagutin, Teemu Hakala, George C. Polyzos
CoAP over ICN. CoRR (2017)
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) (2017)
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) (2017)
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)
Nikos Fotiou, Hasan M. A. Islam, Dmitrij Lagutin, Teemu Hakala, George C. Polyzos
CoAP over ICN. NTMS (2016)
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)
Ziyi Feng, Yuwei Chen, Teemu Hakala, Juha Hyyppä
Range calibration of airborne profiling radar used in forest inventory. IGARSS (2016)
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) (2016)
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) (2015)
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) (2015)
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) (2013)
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) (2013)
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) (2010)
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) (2010)
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) (2010)
Sanna Kaasalainen, Juha Suomalainen, Teemu Hakala, Yuwei Chen, Esa Räikkönen, Eetu Puttonen, Harri Kaartinen
Active hyperspectral LIDAR methods for object classification. WHISPERS (2010)
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) (2010)
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) (2009)
Juha Suomalainen, Teemu Hakala, Jouni Peltoniemi, Eetu Puttonen
Polarised Multiangular Reflectance Measurements Using the Finnish Geodetic Institute Field Goniospectrometer. Sensors 9 (5) (2009)
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)