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INDIGOVISION
In stark contrast a well-designed IP video system
can eliminate table downtime due to a Networked Supervisor
Video Recorder (NVR) failure by multi-streaming the Investigation
camera video to both a primary and a secondary NVR
simultaneously. Alternatively the video recording can Many security breaches
be automatically assigned to other NVRs in the regrettably involve collusion from
system when a primary NVR fails. NVRs can be security staff – the ‘inside job’.
located at any point on the system and have This provokes the age old
redundant power supplies and network connectivity question: “who watches the
that eliminates any single point of system failure. watchers?” The issue with this is
In the event of any failure and a failover to a that CCTV operators, having
redundant part, a quality IP video system will also more visibility of security
have an alert and reporting system that will clearly operations than anyone else, can
identify the problem and prompt remedial action. detect when they are being investigated and halt any
illegal activity for the duration.
Advanced Review Facilities High-end IP Video systems provide what is often
called the ‘Supervisor Mode’. This allows an outside
IP Video technology has enhanced the way users investigator to record and control cameras without
can search and use recorded video footage. The the CCTV operator within being aware that they are
casino surveillance team can review a dispute at a doing so.
table with an instant recall of the camera in question
and the last few minutes of footage. Key features Hybrid Systems and Migration
including easy camera selection based on real world
names or overlay map reference and “instant replay” Over 85% of casinos still use analogue and VCR
facilities enable an operator to get to the footage systems with significant investment having been
quickly and resolve the dispute. made in equipment and coax wiring. A good IP Video
In cases of fraud, theft, possible terror activities system will provide the necessary components to
and public liability claims sophisticated analytics can allow a step-by-step upgrade to digital as budgets
be employed to quickly search and find the incident. allow, thereby creating a hybrid system during the
Scene changes, activity in a particular area or migration to digital. This is achieved using
directional movement can be targeted as search transmitter/receiver modules that are connected to
criteria. the existing cameras and convert their analogue
“Thumbnail” search enables operators to display video to MPEG-4 or H.264
snapshot frames of varying intervals to quickly sift compressed digital for
through large amounts of footage and target the transmission over the network.
relevant video clip. The modules can also be used to
convert the digital video back to
Fine Review Features analogue for display on existing
TV monitors.
The nature of many reviewed incidents in gaming Importantly, this approach can
can hinge on a few frames of information. The facility also allow a ‘hot transition’,
to review full frame rate footage in forward and whereby the digital system is
reverse, in real time, at slow speeds and frame-by- installed in parallel with the
frame are absolutely necessary to home in on the existing system and no camera
evidence needed. Additional digital zoom facilities to feeds are lost while the system is
enhance the subject in question are also an commissioned and tested.
important feature for any IP Video system.
No Latency
About the Author
Traditional analogue CCTV systems have historically Oliver Vellacott founded IndigoVision in 1994. He
performed better compared to IP Video systems with was previously a product manager with a background
video transmission latency. Live video surveillance can in intelligent camera products. Oliver studied piano
sometimes be hampered when video latency is so high at the Guildhall School of Music before gaining his
that joystick control is out of sync with camera first degree in Software Engineering from Imperial
movement. This has been an issue and has hindered College London and then a PhD in Electrical
the proliferation of IP Video into pro-active video Engineering from Edinburgh University.
surveillance environments such as casinos.
Competent IP Video systems eliminate latency by Dr Oliver Vellacott, CEO,
using proprietary codec designs and advanced digital IndigoVision Group plc,
video compression techniques coupled with good www.indigovision.com
network infrastructure.
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