Intelligent HD surveillance leads the security industry to accelerate development

At present, in the security industry, intelligent HD in the field of video surveillance is the hottest topic. From conceptualization to productization, Smart HD did not take too long, but it actually brought a lot of shock to the entire industry. From SD to HD, the video surveillance industry chain is changing. Intelligent HD surveillance is like an EMU, from the front-end camera to the mid-range transmission, back-end storage, all aspects are contributing power energy, and then constitute an overall solution to promote the quality of monitoring. However, in the early days of the development of smart HD, it still faced such resistance. The technical difficulties have not been completely overcome, and the market situation has not yet been reversed.

The obstacles of the development of intelligent high-definition currently affect the development of the intelligent high-definition camera market are: price, product line and supporting complete, the correct understanding of high-definition.

In terms of prices, most of the early intelligent HD camcorders came from foreign manufacturers and their agents, and the prices of these products were extremely expensive, which made many users who need high-definition equipment stand off. But now, domestic companies have already mastered the core technology of digital high-definition cameras more comprehensively, and they have begun to localize. Localization means that prices must be reduced significantly. The current price of high-definition cameras is increasingly approaching the traditional simulation. Cameras enable more users to use smart HD.

In terms of product series and accessories, whether the camera series is complete or whether the supporting facilities are complete will directly affect the application and popularization of digital intelligent high-definition cameras. Only the key technologies such as 3A that can control the camera (automatic exposure, automatic white balance, autofocus In order to meet the different application needs of the project, we can introduce a full range of digital cameras with various features and varieties.

Intelligent HD surveillance back-end devices PDVR (or NVR), hybrid DVR, etc. are much higher than traditional DVR technology, requiring higher VGA output resolution and higher decoding and processing performance. The hardware structure is also better than traditional DVRs. It is a lot of complicated, so only a few DVR manufacturers in China can successfully make intelligent high-definition back-end recording equipment.

Some high-end intelligent high-definition surveillance projects usually require a video wall. The intelligent high-definition wall is not a matrix or a traditional decoding card and decoding box, but requires intelligent high-definition dedicated wall decoding equipment. Because the current resolution of high-definition LCD monitors is generally as high as 1080P, there is an urgent need for the video display front-end and recording equipment to be matched with it, so that the high-definition monitor can achieve the best value, otherwise it will use the traditional D1, it would be in vain. HD LCD monitor HD effect. In terms of the lens, the optional space for the smart HD lens is too small and the price is expensive, which also affects the rapid popularization of smart HD.

In addition, it is worth mentioning that, in addition to technology and support, there is an important point that is to correct and correctly guide the concept of smart high-definition awareness, which requires leading companies in the domestic intelligent high-definition technology to jointly promote it.

Intelligent HD Camera Development Trend In the intelligent HD monitoring topic, the front-end HD camera is a crucial link. In the age of analog surveillance, users have long complained about vague and noise-filled images. At that time, the best camera on the market was only D1, and the theoretical maximum number of pixels was only 400,000. In the non-security field, it is overwhelmingly digital cameras, video cameras, computer cameras, and mobile phone cameras, which are often millions or even tens of millions of pixels. Surveillance cameras are the largest assistants in security and analog surveillance products can no longer meet the needs of users. Therefore, “high-definition” has become the largest demand, and with high-definition picture quality, low illumination, wide dynamic, intelligent, etc. Only higher-level demands can be realized before they have application value.

With the increasing use of high-end private areas for security surveillance, the range of applications of cameras has become more widespread. Many poorly monitored and dimly lit areas also require the installation of versatile cameras, especially low-light cameras. In addition, in order to meet the needs of all-weather 24-hour monitoring, new low-light cameras have become the new darling of the surveillance market. At present, low-light cameras have been widely used in financial, cultural, hotel, office, residential property management and other fields. For example, Shenzhen Wave Grain Technology Co., Ltd. has always been at the forefront of research and development in low-light high-definition video cameras. Its latest low-illuminance camera with backlight (BSI) technology has far exceeded the effect of low illumination in harsh monitoring environments. Analog cameras, they also have a prominent advantage, that is, ordinary cameras in the low illumination conditions fade the color screen into a black and white image, and this product still shows a color image in low light, whether static or dynamic images , Can show strong sense of hierarchy, true color reproduction, less noise, no smearing and other advantages. The improvement of low-light performance will accelerate the popularity of high-definition network cameras and accelerate the process of the era of high-definition surveillance.

In addition to high-definition and low-illuminance trends, intelligence is also the main direction of development for future surveillance cameras. Traditional monitoring is defensive monitoring. There is a lack of interaction between people and machines. The emergence of intelligent monitoring has changed the status quo. It has become passive and active. It has used intelligent technology to timely and automatically extract a large amount of useful information from the original video information. Complete the transmission, saving and retrieval of videos, and you can also drive other programs to run other smart actions. Its advantage is very obvious: all-weather reliable monitoring, improve alarm accuracy, fast response.

Intelligent monitoring can identify behaviors and types from complex data analysis and provide operational commands, data, and information to realize intelligent behaviors such as alarms, reminder attention, and intelligent retrieval. If traditional video surveillance is a means to search for criminal suspects afterwards, then intelligent surveillance is an auxiliary means to stop crimes from occurring, thereby greatly improving monitoring efficiency. Moreover, since smart devices can selectively transmit video, they effectively save bandwidth and greatly increase the available network bandwidth. Today, intelligent monitoring has become an important topic for monitoring technology development and market demand.

Who will become the smart HD protagonist?

The development trend of intelligent high-definition has been recognized by the vast majority of companies in the security industry, especially in the last year or two. There have been swarms of large and small enterprises in the country trying to squeeze into the intelligent high-definition field. These companies have the original analog camera manufacturers, the traditional " "Network Camera + Video Server" vendors, DVR background R & D manufacturers, and even non-security companies and non-video surveillance manufacturers. All kinds of manufacturers have tried every means to strive for intelligent high-definition surveillance protagonists. At the 2009 Expo, dozens of booths showed intelligent high-definition cameras, but few domestically-made intelligent high-definition cameras that can actually ship in volume.

Through comprehensive development resistance analysis, we have already seen that to do smart HD, it is not enough to simply buy a package. Smart HD is much higher than the current traditional monitoring threshold and requires more comprehensive strength, especially reserve. A lot of R & D power. Analog camera manufacturers have certain experience and foundation in processing and production. However, when the network video standards for digital high-definition cameras have not been formed and promoted, manufacturers should not only develop front-end cameras, but also develop and produce back-end video recorders and monitoring software. There was a general lack of accumulation of analog camera manufacturers based on processing. In addition, the technologies of photoreceptor optics and image processing in digital high-definition video cameras, such as color correction, electronic shutters, wide dynamics, etc., are similar to those of analog cameras. However, this part of the technology of analog cameras was formerly dominated by semiconductor companies. As a result, most of these manufacturers did not have accumulated development in this area.

If the former is a manufacturer of traditional ordinary network cameras and video servers, they will accumulate some experience in background software, but they will also encounter the same resistance as analog camera manufacturers.

Semiconductor companies hope to make a complete technical plan, and hope that any company can produce, but also the formation and promotion of the same limited network video standards, semiconductor companies must provide a variety of photoreceptors low illumination, infrared, wide dynamic and other full series Cameras and rich back-end video equipment and core software have attracted a large number of undeveloped processing companies to become smart HD product manufacturers. This is more complex than the previous free-to-use camera solution offered by Analog Devices.

Finally, take a look at DVR background R&D manufacturers. At present, DVRs in China are generally more expensive than other types of security companies in R&D. Therefore, domestic DVR technology is in a leading position in the world, and there are certain advantages in doing the back end, but In terms of front-end cameras, as with analog cameras and common network camera manufacturers, most of them lack the accumulation of optical and image processing technologies for photoreceptors and DSPs. According to a semiconductor company, this technology has made it difficult for a large company. But fortunately, there are already a few companies in the country, such as wave particles, which have fully mastered these core technologies and are equipped with rich back-end recording equipment, such as hybrid DVR, pure digital PDVR or intelligent high-definition NVR, etc. Get rid of the distress situation in the simulation era.

Concluding remarks Through the development trend of smart HD surveillance in 2009 and now several years ago, it is not difficult to see that smart HD surveillance will maintain a strong growth momentum in 2011, and may usher in explosive development after one year, whether technically or With respect to market share, the development prospect of intelligent HD surveillance is bright.