4K (8MP) ULTRA HIGH DEFINITION

Full HD is making way for Ultra High Definition (Ultra HD), 4K technology, a new resolution standard which provides
8MP video streaming. 4K delivers exceptional scene coverage, clarity and detail, with four times the resolution of Full HD.
Therefore the end user can be assured that fewer site incidents are missed with 4K.




The term 4K, shortened from 4K2K, simply refers to the number of pixels produced in a 4K video stream,
which is a massive 3840 x 2160 pixels (approximately 4K x 2K) or 8 megapixels.




The cost savings come from the need for fewer cameras on site and the associated reduction in cabling, configuration,
recording channels, VMS software licenses and more. Typical applications where 4K has been embraced include city centre
surveillance systems, traffic control and management, airports, car dealerships, parking, sports stadiums and retail parks,
where large areas must be viewed simultaneously and a high level of detail is required for evidence.


Just like Full HD before it, 4K technology has been derived from the TV broadcast industry.
Its rapid acceptance by the consumer market has helped to drive down component costs and increase their availability.


The bandwidth required to transmit a 4K, 8MP video stream at 25 FPS is between 12 and 20 Mbit/sec, using H.264 compression.
However, the number of cameras used in an Ultra HD security system is far less than in a Full HD one, helping ease bandwidth demands. H.265, with twice the data compression capability of H.264, is expected to be commonly available later this year.
Until the wide availability of H.265, many manufacturers have developed specialist compression technologies, like Grundig’s “High Profile” compression, which offer extremely efficient compression and transmission benefits and significantly reduce bandwidth use with
4K technology.



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