Did You Know High Definition CCTV Is Already Here!
The world of CCTV cameras has undergone a sea-change over the last few years. With the introduction of IP cameras the technology changed from analogue to digital networking. Even though digital networking had a lot to offer, it still posed some problems.
The main issue with IP cameras was extracting images from the cameras without any lapse. This latency was caused because image compression happened in the camera instead of the DVR.
The other bigger problem was seen to be the unpredictability of the network supporting the cameras. The issue of high storage and data rates is now being addressed with the launch of the latest technology of high definition CCTV cameras.
What are High Definition CCTV Cameras
What makes this new generation of high definition CCTV cameras so special is their sheer capability of delivering 720p and 1080p videos and that too at 30 frames per second. They do so without having any sort of latency and without compressing images. High definition cameras ensure that the picture quality will not be compromised even when there is too much or too little background light.
How do they work?
Whereas IP video cameras use Cat 5e or cat 6 (Ethernet) cables to send video feed, HD CCTV on the other hand, use coax cable to do the same, without making use of encoders, packets, compression, or even an existing network. And because these cameras use the SMTPE 292M format to deliver images, they are able to produce images of up to 2.1 megapixels at 1,080p.
The improved picture quality can also be attributed to their ability of increasing the required exposure on a pre-determined area in the picture. They accumulate enough light on their own when it is dark and remove a physical infra-red filter during day mode.
What Cable Format do HD CCTVs use?
HD CCTV cameras send data over various kinds of cable formats; however, all of these formats are converted to the H.264 format. H.264 is the most common format that a DVR, NVR and network camera operates in, thereby ensuring that HD CCTVs remain compatible with the already available DVRs in the market.
Other Advantages
HD CCTV cameras have various other advantages. As already mentioned, the picture clarity is perfect as there is no background analogue noise. Also, the Plug-and-Play Upgrade feature makes it easier for you to transform from CCTV to HD CCTV cameras. The user interface for the installer/operator is not very different from the existing ones, making HD CCTV as easy to install and operate.
What’s more is that a joystick command instantly generates the corresponding image, without any lapse.
HD CCTV is the way of the future
Currently the high definition CCTVs have a limitation of producing images of up to 2.1 MP. However, this technology is still relatively new and hence has a possibility of improved resolution in the near future. Also, the fact that high definition CCTVs display no latency whatsoever is a huge advantage for places that require precision in recording such retail shops, petrol pumps and even banks. HD CCTVs are making the future of CCTV cameras look even brighter.
