The benefits of HD CCTV over coax are many. The introduction of HD-SDI cameras and recorders has seen a change in the way many companies are now influencing their customers to buy HD CCTV. IP is no longer the only option and in many cases now no longer the prefered option . We list below some of the benefits of HD SDi CCTV and see why some installers think HD SDI could change the industry as a whole.
Higher resolution is the primary benefit that is gained from HD SDI CCTV. HD-SDI cameras output full HD resolution images (1080p) but unlike IP this is done in real time. This means that HD SDI cameras can give the end user as much five times the resolution of standard analogue cameras. HD-SDI DVRs are also capable of recording full HD. This means up to (1080p) Full HD resolution images. The primary benefit of this is that the end user will get real-time recording. HD CCTV has now already filled one one of the fundamental requirements of a CCTV system. Quality images that the end user can rely on.
Of course one of the main drawbacks of analogue CCTV is the amount of data that is sub standard. HD-SDI is an HD CCTV solution that provides video signals that are not compressed before transmission. This means that unlike IP there are no distortions within the captured image or frame rate interruptions. Zero latency can be achieved because HD-SDI transmits a digitized video signal meaning no reduction in quality of the images which often occurs with analogue.
Perhaps the best news for the CCTV industry with the introduction of HD-SDI DVR s and HD CCTV cameras is that they can use an analogue infrastructure. In other words HD CCTV over coax.This makes them suitable for users looking to increase the quality of their current security systems. Why re-cable when HD CCTV can be achieved with little effort and lower costs that installing a new IP CCTV system?
HD CCTV cameras and DVRs are similar to standard definition cameras and DVRs in the way they need to be installed and do not require any additional specialist knowledge or skill. Re-training that has added a heavy burden on the CCTV industry is no longer required. HD-SDI is not prone to issues associated with IP network based video surveillance systems. The installer is no longer dependent on third party IT companies to install or allow access to IT networks. One of the biggest benefits being seen is that no IT or IP network knowledge is required and bandwidth requirements are a problem of the past. We are back to a simple CCTV installation.