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SENSNET
Visually enabling networks for intelligent video surveillance and video event response management.
SENSNET is the Clarity Visual Intelligence common infrastructure that has been used to develop the Visual Surveillance System.
insert diagram of VSS infrastructure
The SENSNET infrastructure serves the following functions in the Visual Surveillance System.
- Video Acquisition and Distribution - SENSNET Video Server.
Captures video from analogue or digital cameras and makes it available to the network, the SENSNET applications and the Clarity 'Visual Surveillance Workstation'.
- Video can be acquired from diverse sources: IP camera, composite video, VCR/DVR, network video, file system real-time play back.
- Can accept both digital & analogue data-transforms analogue data to digital (requires card).
- The Video Server can be queried for performance statistics remotely.
- Clients of the Video Server can negotiate key connection parameters, including encoding, frame-rate and resolution, at any time.
- Multiple Video Servers can run on a single machine.
- Is able to auto discover all video sources and communicate this to the network providing clients with a list to choose from.
- Uses a published communication protocol that can be utilised by third parties to access video.
Significant network efficiencies:
- Cropping and scaling occurs at the video server to reduce data sent over the network.
- Image compression (JPEG, JPEG2000, RLE) occurs at the video server to reduce data sent over the network.
- Video server can control the frame-rate and image dimensions dynamically.
- Image Analysis - SENSNET Visual Intelligence Engines.
Uses state-of-the-art computer vision algorithms developed by Clarity Visual Intelligence to analyse video footage in real-time to find 'interesting' or 'abnormal' behaviours or objects in the video.
- Automatic, accurate and dynamic analysis of object and people activity.
- Real-time video processing.
- Ability to learn and cope with changes reducing false alarms in varying light and background conditions.
- Robust - once configured, will work continuously with no changes required.
- Runs on standard PC hardware and integrates easily with existing IT infrastructures.
- Personnel or other systems can be notified of detected events when they happen.
- Enables efficient image storage and transmission.
- Data Storage - SENSNET Intelligence Datastore.
The SENSNET Datastore stores video and high-level semantic information generated by the Visual Intelligence Engines for later retrieval by clients such as report generators or the Visual Surveillance Workstation.
- Uses an industry standard database that has been selected to cope with the demands of high volume video storage and retrieval.
- Can handle multiple requests simultaneously.
- Is highly scalable and provides fast retrieval of data over large periods of time.
- Is robust making it suitable for mission critical environments.
- Remote Viewing SENSNET Remote Viewer.
Provides remote access to real-time and recorded images and intelligence from handheld computers and from other computers which have not been designated as dedicated Visual Surveillance Workstations. It is a Java application that can run on any machine with a Java ME Virtual Machine or better. The user interface is designed to run optimally on a PDA.
- View video remotely including over wireless networks.
- Easy-to-use interface allowing viewing of multiple video streams simultaneously.
- Provides security staff with mobility while retaining a visual observation of an event.
- Enables viewing of video from any SENSNET Server on the network.
 For more information download the SENSNET brochure under the Links section to your right.
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