Adaptive change detection for real-time surveillance applications

2002 ◽  
Author(s):  
S. Huwer ◽  
H. Niemann
Keyword(s):  
Change Detection ◽  
Real Time ◽  
Adaptive Change ◽  
Surveillance Applications

scholarly journals Automated terrestrial laser scanning with near-real-time change detection – monitoring of the Séchilienne landslide

2017 ◽  
Vol 5 (2) ◽  
pp. 293-310 ◽  
Author(s):  
Ryan A. Kromer ◽  
Antonio Abellán ◽  
D. Jean Hutchinson ◽  
Matt Lato ◽  
Marie-Aurelie Chanut ◽  
...  
Keyword(s):  
Change Detection ◽  
Real Time ◽  
Laser Scanning ◽  
Terrestrial Laser Scanning ◽  
Cost Effective ◽  
Deformation Monitoring ◽  
Time Change ◽  
High Temporal Resolution ◽  
Atmospheric Conditions ◽  
Detection Processing

Abstract. We present an automated terrestrial laser scanning (ATLS) system with automatic near-real-time change detection processing. The ATLS system was tested on the Séchilienne landslide in France for a 6-week period with data collected at 30 min intervals. The purpose of developing the system was to fill the gap of high-temporal-resolution TLS monitoring studies of earth surface processes and to offer a cost-effective, light, portable alternative to ground-based interferometric synthetic aperture radar (GB-InSAR) deformation monitoring. During the study, we detected the flux of talus, displacement of the landslide and pre-failure deformation of discrete rockfall events. Additionally, we found the ATLS system to be an effective tool in monitoring landslide and rockfall processes despite missing points due to poor atmospheric conditions or rainfall. Furthermore, such a system has the potential to help us better understand a wide variety of slope processes at high levels of temporal detail.

scholarly journals Real-Time On-Demand Motion Video Change Detection in the Sensor Web Environment

2011 ◽  
Vol 54 (12) ◽  
pp. 2000-2016 ◽  
Author(s):  
Z. Chen ◽  
L. Di ◽  
G. Yu ◽  
N. Chen
Keyword(s):  
Change Detection ◽  
Real Time ◽  
Web Environment ◽  
On Demand ◽  
Sensor Web ◽  
Motion Video

Bitstream-Based JPEG Encryption in Real-time

2013 ◽  
Vol 5 (3) ◽  
pp. 1-14 ◽  
Author(s):  
Stefan Auer ◽  
Alexander Bliem ◽  
Dominik Engel ◽  
Andreas Uhl ◽  
Andreas Unterweger
Keyword(s):  
Real Time ◽  
Video Surveillance ◽  
Time Operation ◽  
Real Time Operation ◽  
Surveillance Applications

The authors propose a framework to encrypt Baseline JPEG files directly at bitstream level, i.e., without the need to recompress them. The authors’ approach enables encrypting more than 25 pictures per second in VGA resolution, allowing real-time operation in typical video surveillance applications. In addition, their approach preserves the length of the bitstream while being completely format-compliant. Furthermore, the authors show that an attack on the encryption process, which partly relies on AES, is practically infeasible.

Real-time 3D change detection of IEDs

2012 ◽  
Author(s):  
Mitch Wathen ◽  
Norah Link ◽  
Peter Iles ◽  
John Jinkerson ◽  
Paul Mrstik ◽  
...  
Keyword(s):  
Change Detection ◽  
Real Time
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