Works by Koivumäki, Niko

Results: 15

A New Approach for Feeding Multispectral Imagery into Convolutional Neural Networks Improved Classification of Seedlings.

Published in:

Remote Sensing, 2023, v. 15, n. 21, p. 5233, doi. 10.3390/rs15215233

By:

Imangholiloo, Mohammad;
Luoma, Ville;
Holopainen, Markus;
Vastaranta, Mikko;
Mäkeläinen, Antti;
Koivumäki, Niko;
Honkavaara, Eija;
Khoramshahi, Ehsan

Publication type:

Article

Comparison of Deep Neural Networks in the Classification of Bark Beetle-Induced Spruce Damage Using UAS Images †.

Published in:

Remote Sensing, 2023, v. 15, n. 20, p. 4928, doi. 10.3390/rs15204928

By:

Turkulainen, Emma;
Honkavaara, Eija;
Näsi, Roope;
Oliveira, Raquel A.;
Hakala, Teemu;
Junttila, Samuli;
Karila, Kirsi;
Koivumäki, Niko;
Pelto-Arvo, Mikko;
Tuviala, Johanna;
Östersund, Madeleine;
Pölönen, Ilkka;
Lyytikäinen-Saarenmaa, Päivi

Publication type:

Article

Estimating Grass Sward Quality and Quantity Parameters Using Drone Remote Sensing with Deep Neural Networks.

Published in:

Remote Sensing, 2022, v. 14, n. 11, p. 2692, doi. 10.3390/rs14112692

By:

Karila, Kirsi;
Alves Oliveira, Raquel;
Ek, Johannes;
Kaivosoja, Jere;
Koivumäki, Niko;
Korhonen, Panu;
Niemeläinen, Oiva;
Nyholm, Laura;
Näsi, Roope;
Pölönen, Ilkka;
Honkavaara, Eija

Publication type:

Article

Multispectral Imagery Provides Benefits for Mapping Spruce Tree Decline Due to Bark Beetle Infestation When Acquired Late in the Season.

Published in:

Remote Sensing, 2022, v. 14, n. 4, p. 909, doi. 10.3390/rs14040909

By:

Junttila, Samuli;
Näsi, Roope;
Koivumäki, Niko;
Imangholiloo, Mohammad;
Saarinen, Ninni;
Raisio, Juha;
Holopainen, Markus;
Hyyppä, Hannu;
Hyyppä, Juha;
Lyytikäinen-Saarenmaa, Päivi;
Vastaranta, Mikko;
Honkavaara, Eija

Publication type:

Article

An Image-Based Real-Time Georeferencing Scheme for a UAV Based on a New Angular Parametrization.

Published in:

Remote Sensing, 2020, v. 12, n. 19, p. 3185, doi. 10.3390/rs12193185

By:

Khoramshahi, Ehsan;
Oliveira, Raquel A.;
Koivumäki, Niko;
Honkavaara, Eija

Publication type:

Article

Visual-Inertial Odometry Using High Flying Altitude Drone Datasets †.

Published in:

Drones (2504-446X), 2023, v. 7, n. 1, p. 36, doi. 10.3390/drones7010036

By:

George, Anand;
Koivumäki, Niko;
Hakala, Teemu;
Suomalainen, Juha;
Honkavaara, Eija

Publication type:

Article

Sensitivity analysis of the Green Shoulder indices in pre-emergence detection of single trees attacked by European spruce bark beetle.

Published in:

International Journal of Remote Sensing, 2025, v. 46, n. 9, p. 3513, doi. 10.1080/01431161.2025.2482747

By:

Huo, Langning;
Koivumäki, Niko;
Näsi, Roope;
Honkavaara, Eija

Publication type:

Article

Towards scalable wide area UAS monitoring of forest disturbance using hydrogen powered airships.

Published in:

International Journal of Remote Sensing, 2025, v. 46, n. 1, p. 177, doi. 10.1080/01431161.2024.2399327

By:

Turkulainen, Emma;
Hietala, Janne;
Jormakka, Jiri;
Tuviala, Johanna;
de Oliveira, Raquel Alves;
Koivumäki, Niko;
Karila, Kirsi;
Näsi, Roope;
Suomalainen, Juha;
Pelto-Arvo, Mikko;
Lyytikäinen-Saarenmaa, Päivi;
Honkavaara, Eija

Publication type:

Article

High-precision estimation of grass quality and quantity using UAS-based VNIR and SWIR hyperspectral cameras and machine learning.

Published in:

Precision Agriculture, 2024, v. 25, n. 1, p. 186, doi. 10.1007/s11119-023-10064-2

By:

Oliveira, Raquel Alves;
Näsi, Roope;
Korhonen, Panu;
Mustonen, Arja;
Niemeläinen, Oiva;
Koivumäki, Niko;
Hakala, Teemu;
Suomalainen, Juha;
Kaivosoja, Jere;
Honkavaara, Eija

Publication type:

Article

Large-Area UAS-Based Forest Health Monitoring Utilizing a Hydrogen-Powered Airship and Multispectral Imaging.

Published in:

International Archives of the Photogrammetry, Remote Sensing & Spatial Information Sciences, 2024, v. 48, n. 3, p. 559, doi. 10.5194/isprs-archives-XLVIII-3-2024-559-2024

By:

Turkulainen, Emma;
Hietala, Janne;
Jormakka, Jiri;
Tuviala, Johanna;
de Oliveira, Raquel Alves;
Koivumäki, Niko;
Karila, Kirsi;
Näsi, Roope;
Suomalainen, Juha;
Pelto-Arvo, Mikko;
Lyytikäinen-Saarenmaa, Päivi;
Honkavaara, Eija

Publication type:

Article

Autonomous robotic drone system for mapping forest interiors.

Published in:

International Archives of the Photogrammetry, Remote Sensing & Spatial Information Sciences, 2024, v. 48, n. 2, p. 167, doi. 10.5194/isprs-archives-XLVIII-2-2024-167-2024

By:

Karjalainen, Väinö;
Koivumäki, Niko;
Hakala, Teemu;
George, Anand;
Muhojoki, Jesse;
Hyyppa, Eric;
Suomalainen, Juha;
Honkavaara, Eija

Publication type:

Article

Assessing Structural Complexity of Individual Scots Pine Trees by Comparing Terrestrial Laser Scanning and Photogrammetric Point Clouds †.

Published in:

Forests (19994907), 2022, v. 13, n. 8, p. 1305, doi. 10.3390/f13081305

By:

Tienaho, Noora;
Yrttimaa, Tuomas;
Kankare, Ville;
Vastaranta, Mikko;
Luoma, Ville;
Honkavaara, Eija;
Koivumäki, Niko;
Huuskonen, Saija;
Hynynen, Jari;
Holopainen, Markus;
Hyyppä, Juha;
Saarinen, Ninni

Publication type:

Article

Can Basic Soil Quality Indicators and Topography Explain the Spatial Variability in Agricultural Fields Observed from Drone Orthomosaics?

Published in:

Agronomy, 2023, v. 13, n. 3, p. 669, doi. 10.3390/agronomy13030669

By:

Näsi, Roope;
Mikkola, Hannu;
Honkavaara, Eija;
Koivumäki, Niko;
Oliveira, Raquel A.;
Peltonen-Sainio, Pirjo;
Keijälä, Niila-Sakari;
Änäkkälä, Mikael;
Arkkola, Lauri;
Alakukku, Laura

Publication type:

Article

Silage Grass Sward Nitrogen Concentration and Dry Matter Yield Estimation Using Deep Regression and RGB Images Captured by UAV.

Published in:

Agronomy, 2022, v. 12, n. 6, p. 1352, doi. 10.3390/agronomy12061352

By:

Alves Oliveira, Raquel;
Marcato Junior, José;
Soares Costa, Celso;
Näsi, Roope;
Koivumäki, Niko;
Niemeläinen, Oiva;
Kaivosoja, Jere;
Nyholm, Laura;
Pistori, Hemerson;
Honkavaara, Eija

Publication type:

Article

Exploring forest changes in an Ips typographus L. outbreak area: insights from multi-temporal multispectral UAS remote sensing.

Published in:

European Journal of Forest Research, 2024, v. 143, n. 6, p. 1871, doi. 10.1007/s10342-024-01734-5

By:

Östersund, Madeleine;
Honkavaara, Eija;
Oliveira, Raquel A.;
Näsi, Roope;
Hakala, Teemu;
Koivumäki, Niko;
Pelto-Arvo, Mikko;
Tuviala, Johanna;
Nevalainen, Olli;
Lyytikäinen-Saarenmaa, Päivi

Publication type:

Article