Results 31 to 40 of about 1,014,492 (237)

Offset-Adjustable Deformable Convolution and Region Proposal Network for Visual Tracking

IEEE Access, 2019
Spatial information is considered as the key information in many computer vision tasks including visual tracking. We attempt to use spatial information to get essential knowledge of the tracking targets in videos.
Haoran Wu, Zhiyong Xu, Jianlin Zhang, Ge Jia   +3 more
doaj   +1 more source

LabSAR, a one-GCP coregistration tool for SAR–InSAR local analysis in high-mountain regions

Frontiers in Remote Sensing, 2022
The coregistration of single-look complex (SLC) SAR images for InSAR or offset tracking applications is often performed by using an accurate DEM and precise orbital information. However, in cold regions, such DEMs are rare over high-latitude areas or not
Flora Weissgerber, Laurane Charrier, Laurane Charrier, Cyril Thomas, Jean-Marie Nicolas, Emmanuel Trouvé   +5 more
doaj   +1 more source

Ground deformation monitoring of open-pit coal mine based on SBAS-InSAR and offset tracking techniques

Meikuang Anquan, 2022
Using SBAS-InSAR based on StaMPS and taking Antaibao Open-pit Coal Mine as research area, this paper carries out time series interferometry processing on 33 sentinel ascending and descending images, extracts ground deformation information of open pit ...
SUN Jun, ZHANG Jin
doaj   +1 more source

Lava Mapping Using Sentinel-1 Data after the Occurrence of a Volcanic Eruption—The Case of Cumbre Vieja Eruption on La Palma, Canary Islands, Spain

Sensors, 2022
Volcanic eruptions pose a great threat to humans. In this context, volcanic hazard and risk assessment constitute crucial issues with respect to mitigating the effects of volcanic activity and ensuring the health and safety of inhabitants.
Aggeliki Kyriou, Konstantinos G. Nikolakopoulos   +1 more
doaj   +1 more source

SAR offset tracking

, 2022
This chapter introduces various methods for offset tracking using SAR imagery. The chapter starts with a brief introduction to the acquisition geometry and the imaging method of SAR sensors, including a description of radar speckle.
Leinss, Silvan, Trouvé, Emmanuel, Cavalié, Olivier, Altena, Bas, Sub Dynamics Meteorology, Yan, Yajing, Marine and Atmospheric Research, Li, Shiyi   +7 more
core  

Line-of-Sight Glacier Velocity Estimation of Transboundary Glaciers in the Eastern Himalayas Using High-Resolution TerraSAR-X Data

Proceedings, 2023
Glacier velocity is one of the critical parameters for understanding the current health status of a glacier. According to the momentum law, mass is inversely proportional to velocity. A higher velocity may indicate a lower mass.
Arpan Sharma, Mousumi Gupta, Narpati Sharma, Santanu Gupta   +3 more
doaj   +1 more source

Global Efforts to Reduce Paediatric Cancer Care Disparities in Radiotherapy: A Decade Change

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background We present an update on the status, needs and challenges faced by paediatric imaging and radiotherapy (RT) programmes globally after a previous survey conducted by the International Atomic Energy Agency (IAEA) 10 years prior. Methods We developed and distributed a 121‐question survey to radiation oncologists, medical physicists and ...
Raymond B. Mailhot Vega, Daniel J. Indelicato, Jeanette Parkes, Natia Esiashvili, Josué Hernández Benítez, Miriam Mikhail‐Lette, Olivera Cirajc Bjelac, Daniel Berger, Eva Ciurana, Yavuz Anacak, Lisbeth Cordero‐Mendez   +10 more
wiley   +1 more source

A phase offset tracking algorithm for GMSK signal in digital trunking system

Dianzi Jishu Yingyong
In this paper, the frequency synchronization problem encountered by a domestic trunking system using quasi-coherent demodulation is studied and discussed, and the solution is proposed.
Qin Qing, Cai Zhi, Le Zhiwei
doaj   +1 more source

Seven-year variation in glacier surface velocity at Narsap Sermia in Southwest Greenland

GIScience & Remote Sensing, 2023
Glacier velocity is a critical factor closely related to ice dynamics of the Greenland ice sheet (GrIS). We present variations of ice velocity using space-based synthetic aperture radar (SAR) observations from July 2013 to September 2020.
Seong-Woo Jung, Sang-Hoon Hong
doaj   +1 more source

Surface Velocity Analysis of Surge Region of Karayaylak Glacier from 2014 to 2020 in the Pamir Plateau

Remote Sensing, 2021
The west branch of Karayaylak Glacier (eastern Pamir Plateau) surged in May 2015, significantly impacting on local socio-economic development. This event was also of great significance for studies of surging glaciers. Using Sentinel-1 imagery analyzed by
Yanfei Peng, Zhongqin Li, Chunhai Xu, Hui Zhang, Weixiao Han   +4 more
doaj   +1 more source