Results 61 to 70 of about 2,732 (249)

Automating Ground Control Point Detection in Drone Imagery: From Computer Vision to Deep Learning

Remote Sensing
Drone-based photogrammetry typically requires the task of georeferencing aerial images by detecting the center of Ground Control Points (GCPs) placed in the field. Since this is a very labor-intensive task, it could benefit greatly from automation.
Gonzalo Muradás Odriozola, Klaas Pauly, Samuel Oswald, Dries Raymaekers   +3 more
doaj   +1 more source

A Region Growing controlled by Edge Map technique (RGCE) for Automatic Registration of Satellite Images [PDF]

Journal of the ACS Advances in Computer Science, 2019
Image registration is a basic and troublesome assignment where managingremotely sensed satellite images. The registration of different platform images has turnedinto a critical issue with an expanding number of images gathered each day from ...
doaj   +1 more source

Accuracy assessment of RTK/PPK UAV-photogrammetry projects using differential corrections from multiple GNSS fixed base stations

Geocarto International, 2023
Unmanned aerial vehicles (UAVs) equipped with global navigation satellite system-real-time kinematic (GNSS RTK) receivers allow direct georeferencing of the photogrammetric project without using ground control points (GCPs).
Patricio Martínez-Carricondo, Francisco Agüera-Vega, Fernando Carvajal-Ramírez   +2 more
doaj   +1 more source

Ground truth extraction from LiDAR data for image orthorectification

, 2008
The availability of high accuracy GCPs (ground control points) and DEMs (digital elevation models) becomes the key issue for successful implementation of an image orthorectification project.
Liu, Xiaoye, Zhang, Zhenyu, Zhenyu Zhang, Xiaoye Liu   +3 more
core   +1 more source

Effectiveness and safety of implantable vagus nerve stimulation in people with primary generalized tonic–clonic seizures

Epilepsia Open, EarlyView.
The impact of prompt diagnosis and treatment, and early predictors of outcome severity in this cohort. Abstract Objective Most therapies for drug‐resistant epilepsy (DRE) focus on focal‐onset seizures, the most common seizure types. Studying primary generalized tonic–clonic seizures (PGTCS) is more challenging due to diagnostic and recruitment ...
Katherine Eggleston, Justine Curley, Ryan Verner, Maxine Dibue, Charles Gordon, Gaia Giannicola, Kathryn Nichol   +6 more
wiley   +1 more source

Chiral perovskites for next‐generation chiral optoelectronics and spintronics

FlexMat, EarlyView.
Benefiting from structural inversion symmetry breaking and strong spin‐orbit coupling, chiral perovskites possess intriguing chiral optical and spin properties. We overview their advances and core applications in perovskite solar cells, circularly polarized light detectors and spin circularly polarized‐light‐emitting diodes, offering great potential ...
Mengyao Zhang, Rui Xu, Xueyan Hou, Sihan Du, Mengting Xu, Jia Wu, Zhichao Lin, Pei Liu, Qiang Zhuang, Xiaoming Zhao, Yang Yang, Wenda Shi, Wanlin Guo, Jie Kong   +13 more
wiley   +1 more source

Farming in the shadows of Rome: A multi‐proxy palaeoenvironmental record from Loch Clunie—Perthshire

Journal of Quaternary Science, EarlyView.
ABSTRACT Roman impacts on local society is a subject of international significance. Loch Clunie, Perthshire, lies only 5.4 km from Inchtuthil, the only Roman legionary fortress in Scotland, and contains two crannogs and a probable lakeside hillfort. Despite this proximity and the likelihood of local–Roman interaction, these sites remain unexcavated ...
Samantha E. Jones, Maarten Blaauw, Fraser Hunter, Olalla López‐Costas, Antonio Martínez Cortizas, Tim M. Mighall, Gordon Noble   +6 more
wiley   +1 more source

Impact of Institutional Protocol on Urinary Catheter Outcome Measures in Orthopedic Children Treated With Epidural Analgesia

Pediatric Anesthesia, EarlyView.
ABSTRACT Background Epidural analgesia is commonly used for pain control after major lower‐limb orthopedic surgery in children, but it is associated with a risk of postoperative urinary retention. Consequently, urinary catheters are often placed and left in situ for the full duration of epidural analgesia, despite the potential risks of prolonged ...
Idan Katz, Tomer Talmy, Dor Barami, Tal S. Beckmann, Barry Danino, Yotam Lior, Margaret Ekstein   +6 more
wiley   +1 more source

Automated ground control point identification using deep learning techniques [PDF]

, 2023
Ground Control Points (GCPs) play a crucial role in photogrammetry, providing essential information for georeferencing, registration and scaling of aerial and satellite imagery. These reference points, with known coordinates, are strategically placed and
Grundmann, Jens, Jäschke, Almut, Elias, Melanie, Eltner, Anette, Grothum, Oliver, Blanch Gorriz, Xabier   +5 more
core   +1 more source

MULTI-GNSS PPP: An Alternative Positioning Technique for Establishing Ground Control Points

International Journal of Environment and Geoinformatics, 2020
Traditionally, ground control points (GCPs) are utilized to determine absolute image orientations indirectly in aerial triangulation. For a long time, differential and relative GNSS (Global Navigation Satellite System) positioning techniques have been ...
Berkay Bahadur, Metin Nohutçu
doaj   +1 more source