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News

Video Storage Costs Reduced With Video Thinning Technology

IndigoVision : 24 February, 2011  (New Product)
Indigovision has cut further storage demands off its IP Video surveillance network infrastructure through the introduction of video thinning, selective removal of motion frames over a period of time
IndigoVision is renowned for world-class video compression, using typically half the bandwidth of the competition. Added to this, the company pioneered Activity Controlled Framerate (ACF), a technique for achieving further dramatic reductions in storage by only consuming bandwidth when motion was present, yet without dropping any frames. Finally, IndigoVision has added Video Thinning, reducing storage over longer periods by selectively removing 'P' or motion frames. In combining these three industry-leading technologies, one on top of another, IndigoVision has created a tri-compressed video storage solution with outstanding capacity and unrivalled performance.

 

As part of the advanced compression processing, IndigoVision’s
IP video stream is encoded into a series of I-frames and P-frames. An I-frame is a video frame that has been encoded without reference to any other frame of video and contains information on the whole scene. A recording will contain regular I-frames throughout the stream, typically every 4 seconds. Interspersed between the I-frames are a series of P-frames, which are motion-compensated frames that only contain information about parts of the scene that have changed since the previous frame. The Video Thinning process, which is applied to recorded footage older than a configured age, simply removes the P-frames. This can lead to a dramatic reduction in the storage requirement, although at the expense of losing full motion video. Video Thinning is available on both the NVR-AS 3000 standalone units and the Windows NVR server software.

 

Significant reductions in video storage can also be achieved by deploying
ACF, which is based on real time motion analytics that run at the network edge in IndigoVision’s IP cameras and video transmitter modules. ACF controls the framerate of the camera video stream based on the amount of motion in the scene. When there is no activity, video is streamed over the network at minimum framerate; the instant motion is detected the video is automatically transmitted at the maximum configured framerate.

 

IndigoVision’s
NVR-AS 3000 standalone units are Linux based, providing a robust and resilient plug-and-go recording solution. They offer dual power and network connections, surveillance rated disks and RAID configurations. The units can be setup to work as failover backups or mirrored NVRs or distributed around the network to deliver a fault-tolerant and redundant recording environment. This ensures a high-level of video recording security and gives peace of mind to the end user.

 

Each
NVR-AS 3000 can record video and audio from up to 64 cameras and playback up to 20 video streams at full framerate simultaneously. For example, a single unit could record H.264 video from 32 cameras continuously at 4SIF, full framerate, based on moderate motion levels for 50 days, with a typical power consumption of just 53W for a RAID configured unit. The combination of excellent compression, NVR performance and low power consumption leads to a smaller equipment footprint, less AC cooling plant and lower running costs.
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