Compared with traditional analog surveillance, the technical threshold is higher, and the technical threshold of high-definition video surveillance is even higher. This is a big challenge for domestic security companies. Key technologies such as 3A (auto exposure, auto white balance, auto focus), low-light enhancement, backlight compensation, wide dynamics, electronic shutter, frame accumulation, color correction, etc. are just like a block of mountains and are blocked by many domestic enterprises. Therefore, although many manufacturers have displayed millions of high-definition products at exhibitions and media, at this stage, security companies that can truly master core technologies and mass-produce are rare.
At the same time, millions of high-definition surveillance back-end devices PDVR (or NVR), hybrid DVR, etc. than the traditional threshold of traditional DVR technology is much higher, requiring a higher VGA output resolution and higher decoding and processing performance, hardware structure also It is much more complicated than the traditional DVR, so only a few DVR manufacturers in China can successfully make a million HD rear-end recording devices.
High-definition need to enhance the overall people usually have a misunderstanding, that high-definition is only reflected in the front-end display devices, I do not know, high-definition reflects the overall solution, in order to achieve true high-definition, you need to manage and store from the front-end to the center, To the back-end display, each link of the product must be high-definition, these several factors together, making the same a monitoring system, the use of high-definition will use SD than the cost is much higher. Therefore, for users, HD is not a matter of purchasing a product, but it is necessary to replace part or all of the security monitoring equipment, which also raises the cost of high-definition video surveillance from the side.
Manufacturers "Rare goods can live"
In the IP HD, IP cameras, platforms/NVRs, storage, and video wall decoding are required. In the HD-SDI HD, SDI cameras, optical transceivers, DVRs, and matrices are required. Due to the short development time, compared with the traditional SD monitoring, these HD products are not very rich in variety and form. The user's choice has been limited to a certain extent, and the demand has caused the manufacturers to occupy valuable goods, which also makes high-definition video monitoring. The product's cost quotes remain high.
Due to the technology and cost bottlenecks of high-definition video surveillance, high-definition applications are currently concentrated in safer cities such as safe cities. Of course, we have reason to believe that with the ever-increasing market, the gradual rationalization of planning, and the popularization of more efficient video processing technologies (such as H.264 High Profile), the cost problem will be gradually solved.
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