Zobrazeno 1 - 4
of 4
pro vyhledávání: '"H. M. Tulldahl"'
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLII-3-W3, Pp 59-63 (2017)
A system was developed for automatic estimations of tree positions and stem diameters. The sensor trajectory was first estimated using a positioning system that consists of a low precision inertial measurement unit supported by image matching with d
Externí odkaz:
https://doaj.org/article/6b33c017c6db448eb2ab5665d47cb539
Autor:
E. Willén, Jonas Nordlöf, Joakim Rydell, H. M. Tulldahl, Johan Holmgren, Kenneth Olofsson, Mattias Nyström
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLII-3-W3, Pp 59-63 (2017)
A system was developed for automatic estimations of tree positions and stem diameters. The sensor trajectory was first estimated using a positioning system that consists of a low precision inertial measurement unit supported by image matching with da
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dfadcc182c96c853784652078ad62f8f
https://doi.org/10.5194/isprs-archives-xlii-3-w3-59-2017
https://doi.org/10.5194/isprs-archives-xlii-3-w3-59-2017
Publikováno v:
Electro-Optical Remote Sensing, Photonic Technologies, and Applications IX.
A UAV (Unmanned Aerial Vehicle) with an integrated lidar can be an efficient system for collection of high-resolution and accurate three-dimensional (3D) data. In this paper we evaluate the accuracy of a system consisting of a lidar sensor on a small
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f70433c576e066d30d0ed0ed6729a964
https://doi.org/10.1117/12.2194508
https://doi.org/10.1117/12.2194508
Publikováno v:
SPIE Proceedings.
In this work we evaluate the imaging performance of a range-gated underwater system in natural waters. Trials have been performed in both turbid and clear water. The field trials show that images can be acquired at significantly longer distances with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::714ecdac1fdc94cb95ed0a711162add1
https://doi.org/10.1117/12.689860
https://doi.org/10.1117/12.689860