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Umeå universitet
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Personalbild Ola Ringdahl

Ola Ringdahl

Kontakt

E-post
ola.ringdahl@umu.se
Plats
Plan 2, MIT-huset, C241 Umeå universitet, 901 87 Umeå
Telefon
090-786 57 22

Verksam vid

Anknytning
Forskningsingenjör, förste vid Institutionen för datavetenskap
Anknytning
Universitetslektor vid Institutionen för datavetenskap
2019
Detection and classification of Root and Butt-Rot (RBR) in Stumps of Norway Spruce Using RGB Images and Machine Learning
Sensors, MDPI 2019, Vol. 19, (7)
Ostovar, Ahmad; Talbot, Bruce; Puliti, Stefano; et al.
2019
Evaluation of approach strategies for harvesting robots: Case study of sweet pepper harvesting
Journal of Intelligent and Robotic Systems, Springer Netherlands 2019, Vol. 95, (1) : 149-164
Ringdahl, Ola; Kurtser, Polina; Edan, Yael
2019
Performance of RGB-D camera for different object types in greenhouse conditions
2019 European Conference on Mobile Robots (ECMR)
Ringdahl, Ola; Kurtser, Polina; Edan, Yael
2019
Using RGB images and machine learning to detect and classify Root and Butt-Rot (RBR) in stumps of Norway spruce
Forest Operations in Response to Environmental Challenges
Ringdahl, Ola; Ostovar, Ahmad; Talbot, Bruce; et al.
2018
Adaptive Image Thresholding of Yellow Peppers for a Harvesting Robot
Robotics, MDPI 2018, Vol. 7, (1)
Ostovar, Ahmad; Ringdahl, Ola; Hellström, Thomas
2017
Strategies for selecting best approach direction for a sweet-pepper harvesting robot
Towards Autonomous Robotic Systems: 18th Annual Conference, TAROS 2017, Guildford, UK, July 19–21, 2017, Proceedings, Cham: Springer 2017 : 516-525
Ringdahl, Ola; Kurtser, Polina; Edan, Yael
2016
Human Detection Based on Infrared Images in Forestry Environments
Image Analysis and Recognition (ICIAR 2016): 13th International Conference, ICIAR 2016, in Memory of Mohamed Kamel, Póvoa de Varzim, Portugal, July 13-15, 2016, Proceedings : 175-182
Ostovar, Ahmad; Hellström, Thomas; Ringdahl, Ola
2016
Operational flow of an autonomous sweetpepper harvesting robot
The 5th Israeli Conference on Robotics 2016, 13-14 April 2016, Air Force Conference Center Hertzilya, Israel
Ringdahl, Ola; Kurtser, Polina; Barth, Ruud; et al.
2015
CROPS: Clever Robots for Crops
Engineering & Technology Reference, Vol. 1, (1)
Bontsema, Jan; Hemming, Jochen; Pekkeriet, Erik; et al.
2015
Estimating the position of the harvester head: a key step towards the precision forestry of the future?
Croatian Journal of Forest Engineering, Zagreb, Croatia: Croatian Journal of Forest Engineering 2015, Vol. 36, (2) : 147-164
Lindroos, Ola; Ringdahl, Ola; Pedro, La Hera; et al.
2014
Using ROS for agricultural robotics: design considerations and experiences
RHEA-2014 : 509-518
Barth, Ruud; Baur, Jörg; Buschmann, Thomas; et al.
2014
CROPS: high tech agricultural robots
The European Society of Agricultural Engineers 2014
Bontsema, J.; Hemming, J.; Pekkeriet, E.; et al.
2013
A software framework for agricultural and forestry robots
Industrial robot, Emerald Group Publishing Limited 2013, Vol. 40, (1) : 20-26
Hellström, Thomas; Ringdahl, Ola
2013
Enhanced Algorithms for Estimating Tree Trunk Diameter Using 2D Laser Scanner
Remote Sensing, Basel: MDPI 2013, Vol. 5, (10) : 4839-4856
Ringdahl, Ola; Hohnloser, Peter; Hellström, Thomas; et al.
2012
Tree diameter estimation using laser scanner
Report / UMINF, 12.20
Hellström, Thomas; Hohnloser, Peter; Ringdahl, Ola
2012
A software framework for agricultural and forestry robotics
Proceedings of the first International Conference on Robotics and associated High-technologies and Equipment for agriculture: Applications of automated systems and robotics for crop protection in sustainable precision agriculture, Pisa: Pisa University Press 2012 : 171-176
Hellström, Thomas; Ringdahl, Ola
2012
Potentials of possible machine systems for directly loading logs in cut-to-length harvesting
Canadian Journal of Forest Research, Canadian Science Publishing 2012, Vol. 42, (5) : 970-985
Ringdahl, Ola; Hellström, Thomas; Lindroos, Ola
2012
Estimating wheel slip for a forest machine using RTK-DGPS
Journal of terramechanics, Vol. 49, (5) : 271-279
Ringdahl, Ola; Hellström, Thomas; Wästerlund, Iwan; et al.
2011
Automation in forestry: development of unmanned forwarders
Report / UMINF, 11.03
Ringdahl, Ola
2011
Path tracking in forest terrain by an autonomous forwarder
Scandinavian Journal of Forest Research, Taylor & Francis 2011, Vol. 26, (4) : 350-359
Ringdahl, Ola; Lindroos, Ola; Hellström, Thomas; et al.
2010
Path tracking for autonomous forwarders in forest terrain
Precision Forestry Symposium: developments in Precision Forestry since 2006 : 42-43
Athanassiadis, Dimitris; Bergström, Dan; Hellström, Thomas; et al.
2009
Autonomous forest vehicles: historic, envisioned, and state-of-the-art
International Journal of Forest Engineering, Vol. 20, (1) : 33-38
Hellström, Thomas; Lärkeryd, Per; Nordfjell, Tomas; et al.
2009
Real-time path planning using a simulator-in-the-loop
International Journal Vehicle Autonomous Systems, Inderscience 2009, Vol. 7, (1/2) : 56-72
Hellström, Thomas; Ringdahl, Ola
2008
A Java-based middleware for control and sensing in mobile robotics
International Conference on Intelligent Automation and Robotics 2008 : 649-654
Hellström, Thomas; Johansson, Thomas; Ringdahl, Ola
2008
Autonomous forest machines: Past present and future
Report / UMINF, 08.06
Hellström, Thomas; Lärkeryd, Pär; Nordfjell, Thomas; et al.
2008
Path planning for off-road vehicles with a simulator-in-the-loop
Report / UMINF, 08.07
Hellström, Thomas; Ringdahl, Ola
2008
A simulator driven path planner for autonomous off-road vehicles – initial results
Proceedings of the Israel Conference on Robotics (ICR08)
Hellström, Thomas; Ringdahl, Ola
2008
Autonomous Forest Machines: Techniques and Algorithms for Unmanned Vehicles
VDM Verlag Dr. Müller Aktiengesellschaft & Co. KG 2008
Ringdahl, Ola; Hellström, Thomas
2007
A Software Framework for Control and Sensing in Mobile Robotics
Report / UMINF, 07.05
Hellström, Thomas; Johansson, Thomas; Ringdahl, Ola
2007
Techniques and Algorithms for Autonomous Vehicles in Forest Environment
Report / UMINF, 07.17
Ringdahl, Ola
2006
Development of an Autonomous Forest Machine for Path Tracking
Field and Service Robotics: Results of the 5th International Conference, New York: Springer 2006 : 603-614
Hellström, Thomas; Johansson, Thomas; Ringdahl, Ola
2006
Follow the Past: a Path Tracking Algorithm for Autonomous Vehicles
International Journal of Vehicle Autonomous Systems, Inderscience 2006, Vol. 4, (2/3/4) : 216-224
Hellström, Thomas; Ringdahl, Ola
2006
Path tracking and localization techniques for forest environment.
Proceedings of the Israel Conference on Robotics (ICR06)
Hellström, Thomas; Ringdahl, Ola; Siddiqui, Arsalan
2006
Autonomous Navigation in Forest Environment
Proceedings from the 23rd Anual workshop of the Swedish Artificial Intelligence Society (SAIS06), : -
Ringdahl, Ola; Hellström, Thomas
2005
Development of an Autonomous Path Tracking Forest Machine: a status report
Report / UMINF, 05.08
Georgsson, Fredrik; Hellström, Thomas; Johansson, Thomas; et al.
2005
Autonomous Path Tracking Using Recorded Orientation and Steering Commands
Proceedings of Towards Autonomous Robotic Systems 2005 (TAROS05)
Hellström, Thomas; Ringdahl, Ola
2005
Follow the Past - A Path Tracking Method Using Recorded Orientation and Steering Commands.
Proceedings of The Third Swedish Workshop on Autonomous Robotics (SWAR05) : -
Ringdahl, Ola; Hellström, Thomas
2004
Follow The Past: a Path Tracking Algorithm for Autonomous Forest Vehicles
Report / UMINF, 11
Hellström, Thomas; Ringdahl, Ola
2003
Path Tracking and Obstacle Avoidance for Forest Machines
UMNAD, 454/03
Ringdahl, Ola
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Forskargrupper

Gruppmedlem
Intelligent Robotics