Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Matti Kurkela"'
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
Publikováno v:
European Transport Research Review, Vol 9, Iss 2, Pp 1-10 (2017)
Abstract Purpose Road lighting illuminates road surface and surrounding areas of objects on a road, while car headlights illuminate vertical objects on a road. The goal of the study was to investigate the interaction between road lighting and car hea
Externí odkaz:
https://doaj.org/article/e61ea01c5e5640c1ae6da4ce499ea6ae
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
Autor:
Arttu Julin, Matti Kurkela, Toni Rantanen, Juho-Pekka Virtanen, Mikko Maksimainen, Antero Kukko, Harri Kaartinen, Matti T. Vaaja, Juha Hyyppä, Hannu Hyyppä
Publikováno v:
Remote Sensing, Vol 12, Iss 17, p 2748 (2020)
Terrestrial laser scanning (TLS) enables the efficient production of high-density colored 3D point clouds of real-world environments. An increasing number of applications from visual and automated interpretation to photorealistic 3D visualizations an
Externí odkaz:
https://doaj.org/article/7f8f3aac492a463b9276af4ab7c3fe81
Autor:
Mikko Maksimainen, Matti T. Vaaja, Matti Kurkela, Juho-Pekka Virtanen, Arttu Julin, Kaisa Jaalama, Hannu Hyyppä
Publikováno v:
ISPRS International Journal of Geo-Information, Vol 9, Iss 7, p 455 (2020)
Roadside vegetation can affect the performance of installed road lighting. We demonstrate a workflow in which a car-mounted measurement system is used to assess the light-obstructing effect of roadside vegetation. The mobile mapping system (MMS) incl
Externí odkaz:
https://doaj.org/article/061ae63e16e6403592f0f7e2efe587c5
Autor:
Matti T. Vaaja, Matti Kurkela, Juho-Pekka Virtanen, Mikko Maksimainen, Hannu Hyyppä, Juha Hyyppä, Eino Tetri
Publikováno v:
Remote Sensing, Vol 7, Iss 9, Pp 11389-11402 (2015)
A novel approach to evaluating night-time road and street environment lighting conditions through 3D point clouds is presented. The combination of luminance imaging and 3D point cloud acquired with a terrestrial laser scanner was used for analyzing 3
Externí odkaz:
https://doaj.org/article/6fd685e92a234b72bc2da1cbb381007b
Publikováno v:
Water, Vol 7, Iss 2, Pp 420-437 (2015)
Detailed modeling of floodplain flows and associated processes requires data on mixed, heterogeneous vegetation at river reach scale, though the collection of vegetation data is typically limited in resolution or lack spatial information. This study
Externí odkaz:
https://doaj.org/article/2a3f300cc21944889b77620e25515756
Publikováno v:
ISPRS International Journal of Geo-Information, Vol 3, Iss 3, Pp 871-890 (2014)
Rapid prototyping has received considerable interest with the introduction of affordable rapid prototyping machines. These machines can be used to manufacture physical models from three-dimensional digital mesh models. In this paper, we compare the r
Externí odkaz:
https://doaj.org/article/b4fa506da5104c0a8884ea666ecf90fe
Autor:
Arttu Julin, Kaisa Jaalama, Juho-Pekka Virtanen, Mikko Maksimainen, Matti Kurkela, Juha Hyyppä, Hannu Hyyppä
Publikováno v:
ISPRS International Journal of Geo-Information, Vol 8, Iss 5, p 221 (2019)
The Internet has become a major dissemination and sharing platform for 3D content. The utilization of 3D measurement methods can drastically increase the production efficiency of 3D content in an increasing number of use cases where 3D documentation
Externí odkaz:
https://doaj.org/article/138f8f39da12423d9c6842c3db260c4a
Autor:
Petteri Alho, Matti Vaaja, Hannu Hyyppä, Matti Kurkela, Harri Kaartinen, Antero Kukko, Yunsheng Wang, Claude Flener, Xinlian Liang
Publikováno v:
Remote Sensing, Vol 5, Iss 9, Pp 4571-4592 (2013)
High quality sedimentary measurements are required for studying fluvial geomorphology and hydrological processes e.g., flood and river dynamics. Mobile laser scanning (MLS) currently provides the opportunity to achieve high precision measurements of
Externí odkaz:
https://doaj.org/article/6ebb16fcf63f4c98b4e9933c95a11227