Zobrazeno 1 - 10
of 198
pro vyhledávání: '"Hannu Hyyppä"'
Publikováno v:
ISPRS International Journal of Geo-Information, Vol 12, Iss 8, p 310 (2023)
Increasing interest has recently been shown towards the digital twins of cities. These urban digital twins utilize 3D city models together with other data sources, such as open data, which can be accessed, e.g., through application programming interf
Externí odkaz:
https://doaj.org/article/e8dce6c7290e475cb6f0623a15d43752
Autor:
Ziyi Feng, Aimad El Issaoui, Matti Lehtomäki, Matias Ingman, Harri Kaartinen, Antero Kukko, Joona Savela, Hannu Hyyppä, Juha Hyyppä
Publikováno v:
ISPRS Open Journal of Photogrammetry and Remote Sensing, Vol 3, Iss , Pp 100010- (2022)
In this paper, we compared five crack detection algorithms using terrestrial laser scanner (TLS) point clouds. The methods are developed based on common point cloud processing knowledge in along- and across-track profiles, surface fitting or local po
Externí odkaz:
https://doaj.org/article/081cf37b73a948579d20c787cc4f919b
Autor:
Petri RÖNNHOLM, Miina RAUTIAINEN, Kirsi VIRRANTAUS, Martin VERMEER, Matti VAAJA, Jussi NIKANDER, Hannu HYYPPÄ
Publikováno v:
Micro, Macro & Mezzo Geoinformation, Iss 13, Pp 7-15 (2019)
The Aalto University School of Engineering, Finland, hosts the Master’s Programme in Geoinformatics. This relatively new two-year curriculum is research-based and provides courses in geoinformation technology, geodesy, photogrammetry, laser scan
Externí odkaz:
https://doaj.org/article/9f13360556824500be7aaaf96a1eb5c0
Autor:
Samuli Junttila, Roope Näsi, Niko Koivumäki, Mohammad Imangholiloo, Ninni Saarinen, Juha Raisio, Markus Holopainen, Hannu Hyyppä, Juha Hyyppä, Päivi Lyytikäinen-Saarenmaa, Mikko Vastaranta, Eija Honkavaara
Publikováno v:
Remote Sensing, Vol 14, Iss 4, p 909 (2022)
Climate change is increasing pest insects’ ability to reproduce as temperatures rise, resulting in vast tree mortality globally. Early information on pest infestation is urgently needed for timely decisions to mitigate the damage. We investigated t
Externí odkaz:
https://doaj.org/article/4c8e8842b3a14dd994f8a015f0731321
Autor:
Pauli Putkiranta, Matti Kurkela, Matias Ingman, Aino Keitaanniemi, Aimad El Issaoui, Harri Kaartinen, Eija Honkavaara, Hannu Hyyppä, Juha Hyyppä, Matti T. Vaaja
Publikováno v:
Sensors, Vol 21, Iss 24, p 8190 (2021)
The deterioration of road conditions and increasing repair deficits pose challenges for the maintenance of reliable road infrastructure, and thus threaten, for example, safety and the fluent flow of traffic. Improved and more efficient procedures for
Externí odkaz:
https://doaj.org/article/0dd7518ff42c48baa1daaaa0fb9cb879
Autor:
Kaisa Jaalama, Heikki Kauhanen, Aino Keitaanniemi, Toni Rantanen, Juho-Pekka Virtanen, Arttu Julin, Matti Vaaja, Matias Ingman, Marika Ahlavuo, Hannu Hyyppä
Publikováno v:
ISPRS International Journal of Geo-Information, Vol 10, Iss 11, p 762 (2021)
The importance of ensuring the adequacy of urban ecosystem services and green infrastructure has been widely highlighted in multidisciplinary research. Meanwhile, the consolidation of cities has been a dominant trend in urban development and has led
Externí odkaz:
https://doaj.org/article/974368db25fe4023b98e48eb886d8032
Autor:
Matti Kurkela, Mikko Maksimainen, Arttu Julin, Toni Rantanen, Juho-Pekka Virtanen, Juha Hyyppä, Matti Tapio Vaaja, Hannu Hyyppä
Publikováno v:
Journal of Imaging, Vol 7, Iss 5, p 85 (2021)
We aim to present a method to measure 3D luminance point clouds by applying the integrated high dynamic range (HDR) panoramic camera system of a terrestrial laser scanning (TLS) instrument for performing luminance measurements simultaneously with las
Externí odkaz:
https://doaj.org/article/1dfdc746de8a4305b9b1e5d9ee11c82b
Publikováno v:
ISPRS International Journal of Geo-Information, Vol 10, Iss 3, p 138 (2021)
3D city models and their browser-based applications have become an increasingly applied tool in the cities. One of their applications is the analysis views and visibility, applicable to property valuation and evaluation of urban green infrastructure.
Externí odkaz:
https://doaj.org/article/ab1d2c57de60443b868100e9621c54ca
Autor:
Aimad El Issaoui, Ziyi Feng, Matti Lehtomäki, Eric Hyyppä, Hannu Hyyppä, Harri Kaartinen, Antero Kukko, Juha Hyyppä
Publikováno v:
Sensors, Vol 21, Iss 4, p 1180 (2021)
This paper studied the applicability of the Roamer-R4DW mobile laser scanning (MLS) system for road rut depth measurement. The MLS system was developed by the Finnish Geospatial Research Institute (FGI), and consists of two mobile laser scanners and
Externí odkaz:
https://doaj.org/article/ebde25b7ee314fb1881683377dbbeb69
Publikováno v:
Remote Sensing, Vol 12, Iss 16, p 2624 (2020)
The automated 3D modeling of indoor spaces is a rapidly advancing field, in which recent developments have made the modeling process more accessible to consumers by lowering the cost of instruments and offering a highly automated service for 3D model
Externí odkaz:
https://doaj.org/article/3f6c99faeaef436394b300179bcf63bd