scholarly journals A comparison of adaptive and template matching techniques for radio-isotope identification

2019 ◽  
Author(s):  
Emma J. Hague ◽  
Mark Kamuda ◽  
William P. Ford ◽  
Eric T. Moore ◽  
Johanna Turk
Keyword(s):  
Template Matching ◽  
Isotope Identification ◽  
Matching Techniques

scholarly journals Very early identification of a bimodal frictional behavior during the post-seismic phase of the 2015 M<sub><i>w</i></sub>8.3 Illapel, Chile, earthquake

2021 ◽  
Author(s):  
Cedric Twardzik ◽  
Mathilde Vergnolle ◽  
Anthony Sladen ◽  
Louisa L. H. Tsang
Keyword(s):  
Template Matching ◽  
State Of The Art ◽  
Data Driven ◽  
Spatiotemporal Evolution ◽  
Seismic Slip ◽  
The North ◽  
Chile Earthquake ◽  
Gnss Data ◽  
Matching Techniques

Abstract. It is well-established that the post-seismic slip results from the combined contribution of seismic slip and aseismic slip. However, the partitioning between these two modes of slip remains unclear due to the difficulty to infer detailed and robust descriptions of how both evolve in space and time. This is particularly true just after a mainshock when both processes are expected to be the strongest. Using state-of-the-art sub-daily processing of GNSS data, along with dense catalogs of aftershocks obtained from template-matching techniques, we unravel the spatiotemporal evolution of post-seismic slip and aftershocks over the first 12 hours following the 2015 Mw8.3 Illapel, Chile, earthquake. We show that the very early post-seismic activity occurs over two regions with distinct behaviors. To the north, post-seismic slip appears to be purely aseismic and precedes the occurrence of late aftershocks. To the south, aftershocks are the primary cause of the post-seismic slip. We suggest that this difference in behavior could be inferred only few hours after the mainshock, and thus could contribute to a more data-driven forecasts of long-term aftershocks.

scholarly journals In-situ measurements of the ice flow motion at Eqip Sermia Glacier using a remotely controlled UAV

2019 ◽  
Author(s):  
Guillaume Jouvet ◽  
Eef van Dongen ◽  
Martin P. Lüthi ◽  
Andreas Vieli
Keyword(s):  
Remote Sensing ◽  
Template Matching ◽  
In Situ Measurements ◽  
In Situ Monitoring ◽  
High Temporal Resolution ◽  
Ice Flow ◽  
Flow Motion ◽  
Remote Sensing Techniques ◽  
Matching Techniques

Abstract. Measuring the ice flow motion accurately is essential to better understand the time evolution of glaciers and ice sheets, and therefore to better anticipate the future consequence of climate change in terms of sea-level rise. Although there exist a variety of remote sensing methods to fill this task, in-situ measurements are always needed for validation or to capture high temporal resolution movements. Yet glaciers are in general hostile environments where the installation of instruments might be tedious and risky when not impossible. Here we report the first-ever in-situ measurements of ice flow motion using a remotely controlled Unmanned Aerial Vehicle (UAV). We used a multicopter UAV to land on a highly crevassed area of Eqip Sermia Glacier, West Greenland, to measure the displacement of the glacial surface with the aid of an on-board differential GNSS receiver. Despite the unfortunate loss of the UAV, we measured approximately 70 cm of displacement over 4.36 hours without setting foot onto the glacier – a result validated by applying UAV photogrammetry and template matching techniques. Our study demonstrates that UAVs are promising instruments for in-situ monitoring, and have a great potential for capturing short-term ice flow variations in inaccessible glaciers – a task that remote sensing techniques can hardly achieve.

An Overview of Moving Target Abnormity Behavior Identity Technology in Video Sequence

2013 ◽  
Vol 397-400 ◽  
pp. 2223-2226
Author(s):  
Yue Cong Song ◽  
Bo Liu ◽  
Min Li
Keyword(s):  
Template Matching ◽  
Video Sequence ◽  
Technological Development ◽  
Moving Target ◽  
Full Development ◽  
Detection Technology ◽  
The One ◽  
Matching Techniques ◽  
Tracking Technology ◽  
Research Situation

Moving target abnormity behavior identity technology is the one key base of Intelligent Video Surveillance. Object detection technology, target tracking technology, target classification technology has reached full development at present. About abnormity behavior identity technology, there have three technologies: template matching techniques, state-space techniques, Semantics Description techniques. Research situation of these technologies is introduced in this paper, and orientation of technological development of these technologies is also introduced in this paper.

An Exemplary Template Matching Techniques for Counterfeit Currency Detection

2021 ◽  
pp. 370-378
Author(s):  
P. Nagaraj ◽  
V. Muneeswaran ◽  
K. Muthamil Sudar ◽  
Sk. Hammed ◽  
Desu Lakshmi Lokesh ◽  
...  
Keyword(s):  
Template Matching ◽  
Matching Techniques
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