Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Daniel TUNÁK"'
Autor:
Juliána Chudá, Jozef Výbošťok, Julián Tomaštík, František Chudý, Daniel Tunák, Michal Skladan, Ján Tuček, Martin Mokroš
Publikováno v:
Land, Vol 13, Iss 1, p 93 (2024)
In this study, we evaluated the performance of GeoSLAM ZEB Horizon and Stonex X120GO SLAM handheld mobile laser scanners (HMLS) to address two primary objectives. First, we aimed to assess and compare the accuracy of positioning achieved using HMLS i
Externí odkaz:
https://doaj.org/article/3221a04471e04bbb9eb6810921cdbcb0
Publikováno v:
Journal of Forest Science, Vol 64, Iss 11, Pp 478-485 (2018)
Global navigation satellite systems (GNSS) have a wide range of applications in forest industry, including forest inventory. In this study, the horizontal accuracy of 45 inventory plots in different forest environments and 5 inventory plots under ope
Externí odkaz:
https://doaj.org/article/30e8d22a7737446f9597400c4a090872
Autor:
Martin Mokroš, Xinlian Liang, Peter Surový, Peter Valent, Juraj Čerňava, František Chudý, Daniel Tunák, Šimon Saloň, Ján Merganič
Publikováno v:
ISPRS International Journal of Geo-Information, Vol 7, Iss 3, p 93 (2018)
The potential of close-range photogrammetry (CRP) to compete with terrestrial laser scanning (TLS) to produce dense and accurate point clouds has increased in recent years. The use of CRP for estimating tree diameter at breast height (DBH) has multip
Externí odkaz:
https://doaj.org/article/5f0f0705b3604e34985ada0e3e8ecb54
Autor:
Julián Tomaštik, Daniel Tunák
Publikováno v:
Geodesy and Cartography, Vol 41, Iss 1 (2015)
The compass measurement is one of the customary surveying methods that is used almost from the beginning of systematic geodesy and cartography. After the periods of the decreased use of this method, it was partially renewed by the ascension of the Fi
Externí odkaz:
https://doaj.org/article/47386bbcd1d3412286b51292d1e3b208
Publikováno v:
Forests, Vol 8, Iss 5, p 151 (2017)
This study focuses on the horizontal and vertical accuracy of point-clouds based on unmanned aerial vehicle (UAV) imagery. The DJI Phantom 3 Professional unmanned aerial vehicle and Agisoft PhotoScan Professional software were used for the evaluation
Externí odkaz:
https://doaj.org/article/b649665f407c47fb862b83f36a37644d
Publikováno v:
Forestry: An International Journal of Forest Research. 94:292-310
Smartphones with their capability to receive Global Navigation Satellite Systems (GNSS) signals can be currently considered the most common devices used for positioning tasks, including forestry applications. This study focuses on possible improvemen
Publikováno v:
Lesnícky Časopis, Vol 65, Iss 3-4, Pp 198-205 (2019)
Structure-from-motion (SfM) in combination with multi-view stereo (MVS) represent techniques, which allow efficient generation of the point cloud from close-range photogrammetry (CRP) images of forest ground. Recent software products for the generati
Publikováno v:
Journal of Forest Science. 64:478-485
Autor:
Šimon Saloň, Daniel Tunák, Martina Slámová, Miroslav Kardoš, Julián Tomaštík, František Chudý
Publikováno v:
Land Degradation & Development. 29:1858-1870
Publikováno v:
Computers and Electronics in Agriculture. 141:109-117
This study focuses on the evaluation of the accuracy and feasibility of the use of the new Google Tango technology for outdoor measurements in forest inventory tasks. The technology uses RGB-D and inertial sensors and visual Simultaneous Localization