HD Problems and Countermeasures

HD to be facing the problems and countermeasures

High definition video surveillance, high-definition video surveillance images, but also to the traditional industries supporting it can not shirk how to handle the stream HD video images at every turn "trillion", in existing networks for smooth, without delay transmission; how to solve the single-channel video per day up to dozens of G storage requirements; how to solve the multi-channel "1080PFull HD images in real time, switching round of the Tour and other monitoring applications These are problems facing the security the application of high-definition video images to monitor

It is understood that the recent market, some well-known brands began to focus on "security application" HD, "HD monitor security" from the development of "technology" as "products", and further the development of the "product" for efforts to "goods" . At this stage, several internationally renowned manufacturers launched "smart encoding technology" HD-SDI interface camera corridor mode application, will be the highlight of this process will enable the HD road more to go more smoothly

HD monitoring technology application

Smart encoding technology

The basic high-definition video surveillance stream in about 4 trillion, and some even reach 7 to 8 megabytes, so a large stream, on the basis of the existing network architecture, network equipment, it is difficult to achieve without delay, smooth transmission. How to ensure the effective video surveillance in high-definition, real-time under the premise of the lower stream high-definition video surveillance? On the basis of the current compression algorithms have no further breakthrough, the "smart encoding technology is the best way to solve this problem .

Some of the manufacturers, effective segmentation of a video monitor screen, important to monitor the target object "or" effective monitoring information "section / area, the use of" smart encoding technology to maintain this part of the screen / regional "High Definition"; on the screen in the "non-critical monitoring the target, the object" or "non-effective monitoring information" section / area, to reduce their resolution.

Screen after this treatment, compared to the stream can be reduced up to approximately 40% without making any deal with the screen. In other words, the picture processing by the "smart encoding technology to ensure the security monitoring, useful video / image information to HD at the same time, reduce the screen in" non-effective, non-essential monitoring information "code flow accounted for, so as to achieve the purpose of reducing the stream.

"Smart encoding technology can reduce the high-definition video surveillance stream, thereby reducing storage costs. After this treatment after a hard image video storage, image storage space will be greatly reduced, to stimulate the lower overall storage costs.

The advantages of HD-SDI

H.264 encoding applications reduces the stream of high-definition network camera, but even after a high-definition video images (such as 1.3 million pixels) in the treatment of such technology to ensure real-time image and fluency, and its stream is at least still reach more than 3 trillion, high-definition network camera (1.3 million pixels), even in the excellent condition of the network conditions, the network delay is also more than 100 milliseconds, which for some of the real-time applications demanding users that difficult to achieve the idealized, so in order to better solve this problem, Samsung, Hikvision (002,415, stock it), and Dahua, Vimicro manufacturers launched a brand new HD-SDI interface uncompressed digital HD equipment, radio and television class high-definition applications, the introduction of the security industry

　2: the future direction of

HD-SDI (pictured) is the standard of the broadcast high-definition digital inputs and outputs, coaxial cable for transmission of uncompressed audio and video signals, control signals, power is concentrated in a video online. HD-SDI cameras, high definition, uncompressed, without delay and other characteristics of the mainstream resolution of 720P (1280 x 720), 1080P (1920 x 1080). The interface of these cameras, taking into account the characteristics of the security industry, as an interface standard BNC connectors, so you can use the existing transmission line (coaxial video cable). HD-SDI product advantages:

1, obtained by monitoring the image quality is very high can get high definition, uncompressed, no-latency monitoring images on coaxial cable, the picture seen by the monitoring center has been largely without any delay.

2, the original analog monitor upgrade for HD surveillance, and low total cost of just replace the front-end cameras and storage devices, and the original wiring can be fully utilized, without re-wiring.

3, simple operation, Interface General Contractors, its operation and setting with the traditional monitoring system is almost the same, without re-training.

9:16 model "HD applications

For the application of a particular scene Camcorder - Pro, recently, some manufacturers also put forward a new application method. For example, for indoor surveillance, common corridors, fire exits, control room and other environments, the camera through the corridor model "set transform image from 16:9 display format for the 9:16 show format ( rotated 90 degrees), which makes monitoring the region to become more widespread. Corridor model "applications, making the scene at a specific site monitoring can be greatly improved, but also makes the design of the distribution, with more flexibility. In the field of intelligent building, the corridor model "Camcorder - Pro With HD resolution, a wider range of monitoring the scene (after the mode change, the effective monitoring monitor the scene of the scene than the existing technology to expand by nearly 2 times) can be at a lower cost (reduction in the number of distribution) to obtain a wider range of monitoring.

The future development of

No matter what technology, "HD" from the initial proposed development so far, a gradual return to reason. Manufacturers paid more attention to the practical application of a new technology, how to better solve the cost, network bandwidth, storage, etc. HD range of issues, more and more attention to the compatibility of the HD system as a whole to build the system, stability and so on.

Some of the manufacturers on the future direction of high definition video surveillance, such as Samsung, Panasonic, Hikvision, Dahua and other intelligence applications in high-definition video surveillance, security monitoring and Internet of Things "," cloud era security Monitoring and other fields, have put forward their own development plans and ideas. At the same time, we also combine the characteristics of high-definition extended security epitaxial applications, including the combination of multimedia applications, and production management applications, as well as some of the HD-related commercial applications.

I believe that with video surveillance security applications in China and the continuous development of HD as the Pearl of the most important one in the network video surveillance, it will definitely send more and brighter light