Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Michal KAČMAŘÍK"'
Publikováno v:
Forests, Vol 15, Iss 7, p 1111 (2024)
This paper presents a single tree segmentation method applied to 3D point cloud data acquired with a LiDAR scanner mounted on an unmanned aerial vehicle (UAV). The method itself is based on clustering methods and graph theory and uses only the spatia
Externí odkaz:
https://doaj.org/article/a2042ac9db9a429ca67bb74b9c55203a
Autor:
Marek HALAJ, Michal KAČMAŘÍK
Publikováno v:
GeoScience Engineering, Vol 68, Iss 2, Pp 178-194 (2022)
In recent years, there have been significant technological advances in the development of common mobile devices. This brought progress also in the area of positioning with these devices. Allowing access to raw GNSS observations recorded by mobile dev
Externí odkaz:
https://doaj.org/article/31dd2b7c4024421da9269e6deaa729f2
Publikováno v:
GeoScience Engineering, Vol 67, Iss 4, Pp 156-167 (2021)
With the growing availability of accurate and long-term measurements of displacements of technical infrastructure elements, there is a growing interest in the automated processing of acquired data. Various methods can be used for monitoring; however,
Externí odkaz:
https://doaj.org/article/ca669db78b224b379632470c9711aefd
Publikováno v:
Remote Sensing, Vol 14, Iss 19, p 4898 (2022)
Several methods allow accurate measurement of terrain surface motions. Global navigation satellite systems (GNSSes) and interferometry with synthetic aperture radar (InSAR) stand out in terms of measurement accuracy among them. In principle, both met
Externí odkaz:
https://doaj.org/article/d1981e97ccb34b49bccdb0da70508c5a
Publikováno v:
Water, Vol 13, Iss 23, p 3392 (2021)
Many technical infrastructure operators manage facilities distributed over large areas. They face the problem of finding out if a flood hit a specific facility located in the open countryside. Physical inspection after every heavy rain is time and pe
Externí odkaz:
https://doaj.org/article/2246dd0ccd1147919845187ab772d858
Publikováno v:
Remote Sensing; Volume 14; Issue 19; Pages: 4898
Several methods allow accurate measurement of terrain surface motions. Global navigation satellite systems (GNSSes) and interferometry with synthetic aperture radar (InSAR) stand out in terms of measurement accuracy among them. In principle, both met
Autor:
Florian Zus, Jan Douša, Michal Kačmařík, Pavel Václavovic, Kyriakos Balidakis, Galina Dick, Jens Wickert
Publikováno v:
Remote Sensing, Vol 11, Iss 6, p 674 (2019)
The Benchmark data set collected within the European COST Action ES1206 has aimed to support the development and validation of advanced Global Navigation Satellite System (GNSS) tropospheric products, in particular high-resolution zenith delays and t
Externí odkaz:
https://doaj.org/article/1bf084b877d342959a5af39506cbee00
Publikováno v:
Remote Sensing, Vol 11, Iss 1, p 41 (2018)
We developed operators to assimilate Global Navigation Satellite System (GNSS) Zenith Total Delays (ZTDs) and horizontal delay gradients into a numerical weather model. In this study we experiment with refractivity fields derived from the Global Fore
Externí odkaz:
https://doaj.org/article/4c356a0b36784cd5908a9e5eeeafdefa
Publikováno v:
GIS Ostrava 2022 Earth Observation for Smart City and Smart Region.
Autor:
Michal Kačmařík, Lukáš Rapant
Publikováno v:
Geoinformatics FCE CTU, Vol 9, Iss 0, Pp 63-76 (2012)
Paper is focused on GNSS meteorology which is generally used for the determination of water vapour distribution in the atmosphere from GNSS measurements. Water vapour in the atmosphere is an important parameter which influences the state and developm
Externí odkaz:
https://doaj.org/article/2e9c493ad27640c782574478771d11b4