Z. Kandylakis, K. Karantzalos, L. Karagiannidis, F. Misichroni and A. Amditis,
2018 WHISPERS Conference 2018, 9th Workshop on Hyperspectral Image and Signal Processing : Evolution in Remote Sensing, which will be held on 23rd to 26th September 2018 in Amsterdam, The Netherlands
In the framework of ZONeSEC EU Project (https://www.zonesec.eu), the i-SENSE Research Group of the Institute of Communication and Computer Systems (ICCS) and the Remote Sensing Laboratory of the National Technical University of Athens (NTUA) have designed, developed and validated an innovative spectral imaging system for the efficient monitoring and surveillance of widezones through the integration of multiple spectral imaging sensors, as well as interoperable, seamless integration of cutting-edge tools with legacy systems, mission critical communication technologies allowing the real-time processing, alert and alarm transmission and communication with the core ZONeSEC system and all its subcomponents.
In particular, the integrated multisensor imaging system can acquire data at different spectral regions. In particular, the Spectral Sensing Monitoring System Prototype consists of thermal and hyperspectral cameras, while a short-wave infrared (SWIR)
sensor has been integrated as well, broadening the spectral regions that multiple observations can be acquired. In more detail, the system contains two thermal sensors which are both sensitive at approximately 8μm -13μm through a microbolometer
sensing core. The sensor can acquire data with a spatial resolution of 620x500 pixels with a sensitivity less than 60mK at 9 Hz. Regarding the hyperspectral sensor it is sensitive at the 400nm-700nm spectral region, is lightweight and has low power
consumption. Raw data is acquired and stored through a standard interface. The lens has a focal length of 10mm-35mm. The shortwave infrared (SWIR) sensor is sensitive at the 900nm–1700nm spectral region. It is also lightweight and has low power consumption. As far as spatial resolution is concerned, datasets are acquired at a resolution of 640x512 pixels with high frame rates at 100Hz maximum.
The developed sensing system has been designed to locally process the acquired huge amount of video data and in near realtime provide the detection results and alarms to the ZONeSEC system. This will be performed through an Ethernet or wireless
connection, while the information will disseminated through CSV, JSON, XML, etc files. The developed system has been extensively tested and successfully validated through several both indoor and outdoor experiments at ICCS/ NTUA premises as well as the already performed ZONeSEC On-site Integration Pilots (OIPs) and Pilot Demonstrators at the premises of ZONeSEC’s end-users: (i) Attikes Diadromes SA (urban highway), (ii) Compania Aquaserv SA (water supply and sewerage public service), (iii) ACCIONA Infraestructuras SA (bridges, roads and transportation infrastructures), (iv) DESFA SA (natural Gas transmission system operator). The competitive advantage and innovation lies on the fact that the system was designed (both hardware and software aspects and functionalities) in order to exploit different spectral regions across the spectrum, be
robust against different critical security conditions and other monitoring parameters like spatial, temporal resolution, field of view, power consumption, etc. delivering alerts and alarms in (near) real-time. The cutting-edge technology was successfully integrated in terms of hardware, while the developed software modules managed to handle the huge amount of video streams acquired from all sensors simultaneously performing at the same time the required pre-processing computations regarding both geometric and radiometric corrections. In addition, a uniform communication layer has been implemented that enables the interoperable, secure and real-time data exchange of the Spectral Sensing Monitoring System Prototype with the ZONeSEC platform.
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