Discussion on Renovation of Three Problems in Video Surveillance of Security Network

Three major problems in HD

Low-light and signal-noise processing solutions for CMOS products

As previously analyzed, although megapixel camera products based on CMOS technology currently have deficiencies in low illumination environments and signal-to-noise processing, this does not fundamentally affect its application prospects. First, related international companies are stepping up efforts to solve these two problems. It can be believed that the effect of CMOS will be closer and closer to that of CCD, and the price of CMOS devices will be lower than that of CCD devices. On the other hand, the flexibility of engineering integrators in China's local engineering industry can greatly reduce the impact of the environment on monitoring performance through work on construction wiring and external lighting. Therefore, the market will still leave a considerable space for CMOS technology network HD cameras. CMOS megapixel cameras are also practical in engineering.

How Users Choose Different Sharpness Product Systems

In the actual project, how should the user select the D1-level system or the megapixel-level system according to the actual needs of the project and the surrounding supporting conditions? This is a very practical issue.

To solve this problem, experts believe that: “Building a high-definition video surveillance system will lead to many improvements in network bandwidth, video storage space, and image decoding capabilities. Correspondingly, in practical projects, various factors must be considered comprehensively. Make the right choice between the traditional D1 or even CIF video surveillance system and the new high-definition video surveillance system.These factors ultimately come together, mainly by the customer's ability to bear the cost of project construction, and the customer's video surveillance system. The effect is determined by the expectation."

The price will not be the threshold for high-definition network monitoring applications

At present, network monitoring is tempting to hit the platform system, and the price is relatively expensive. Once the network high-definition monitoring system is established, the price threshold will also be expensive, which is not affordable for the average user. So, the price will not become the threshold for high-definition network monitoring applications.

Experts believe that: "megapixel products are also divided into high, medium and low grades, where the price of low-end products will not be high, in fact, the industry is selling more and more high-definition products prices have become more and more civilian. But the construction of high-definition video surveillance system The corresponding investment in all aspects of supporting construction is still very expensive, so under current conditions, high investment will become an obstacle to the promotion of high-definition video surveillance systems."

Experts believe that: “At present, these industry users with strong HD demand are basically not very sensitive to prices. They are really concerned about quality! From any new technology development, we can see such laws, demand, and technology. Feasibility, starting with high prices, with the development of industrialization and industrial penetration, prices will gradually decline until a new technology completely replaces old technologies into mainstream.

The current price constraint of megapixel-class HD system products is mainly the front-end image sensor. Therefore, in the short term, the price may be slightly restricted, but with the progress of image sensor technology, more and more demand for high-definition trends, the cost reduction is inevitable! ”

Experts believe that: "High-definition monitoring system products, from the cost of certainly higher than the traditional D1, CIF monitoring system. At the same time, the entire monitoring system and network, storage prices are related, high-definition encoder is also subject to the price of high-definition cameras. In the short term, The price will be a factor, and it may only be applied to some high-end customers. But with the development of industry and technology, HD IP cameras are becoming more and more popular, and the price factor will become smaller and smaller."

The price will not become a threshold for the application of megapixel high-definition surveillance systems. The reason is that the front-end high-definition IP cameras use CMOS sensors and ASIC compression chips. Therefore, the price is very high, and the price of CCD high-definition sensors is already high. Reducing to a reasonable range; in the platform part, HD and SD are the same architecture; PC-based client display, because quad-core has become the mainstream configuration of desktop computers, and many graphics cards with their own hardware HD decoding capabilities, Therefore, it is no problem to display high-definition images on PC clients; hardware decoding and dedicated high-definition ASIC decoding chips are also mature and cost-effective.