The emerging IP(internet protocol) based surveillance technology shows the tendency for the future video surveillance. The reasons are many.                    

The video surveillance system evolves from the very early CCTV system, to the mainstream DVR system in today and IP video surveillance in the future.

The key factor in digital video surveillance is the massive manufacture and adoption of DVR – Digital Video Recorder, which is prevailing in modern surveillance system.

However, digital video surveillance won’t stop in DVR, it will still evolve to IP video surveillance in the following 4 aspects:

1. Digital and more digital.  The digital in video surveillance industry refers the 3 important factors,:

·        Process to convert analog audio and video signal to digital signal

·        Process to compress converted digital signal of audio or video. There are many algorithms introduced balance the goal of high compression rate, fast process and low loss rate of original media.

·        Storage of digital media

DVR is already a digital system in storage of picture or video, but the quality of media is pretty low compared to family entertainment system, which is improving standard by standard from VHS-DVD-Blue Ray. It is a great challenge for digital surveillance to improve quality of video and unify media format down the road.

The recent indication of HD (High Definition) computing is the standardization of H.264 and the release of chipset implementing of H.264  algorithm.

1. Network. Network is another key factor for video surveillance system to accomplish remote control and centralized management. Compare the high cost and inflexibility of traditional surveillance with specialized transfer channel, the internet has obvious advantage on it.
2. Integration. In order to make the video surveillance system running in open network, the interface between software, products has to be put together by system integrators according to end user’s requirement and environment.
3. Intelligence. Facing the gig-bytes or even terra-bytes digital media, how to find the useful information is big problem. Intelligence comes here as a irreplaceable advantage for digital surveillance on traditional CCTV system. The Business Intelligence for digital video surveillance including the following 3 technologies:

·        Image recognition. The most prevailing application is human face recognition.

·        Video search. Digital media usually is saved in raids of hard drive and is very hard to find. Intelligent video search technology is vital.

·        Intelligent alarm.  Intelligent alarming technology can determine whether there is motion or dangerous goods  based on special algorithm and send out alerts.

The above factors will affect the development and tendency of  digital surveillance and IP surveillance will draw more attention and adoption thus bring us more reliable, affordable products and service.