Industry News

H.265 is expected to be born in the future.

Over the years, the popularity of online video surveillance in life has made us pay more attention to high-definition applications. However, subject to the influence of compression and other factors, network monitoring seems to always feel that there are still some shortcomings in the work. Under such a contrast, the perfect function of the compression standard has become the largest network monitoring user. look forward to.

H.265 to save the field

In our previous applications, H.264 has often emerged as the most advanced compression standard available today. H.264 has high compression performance compared to previous compression standards. For example, under the condition of the same image quality, the compression ratio of H.264 is more than twice that of MPEG2, and the compression effect of MPEG4 is also 1.5 to 2 times.

In fact, the reason why the compression ratio is so high is the low code rate. Compared with MPEG2 and MPEG4, H.264 compression technology greatly reduces the user's download time and data traffic. In addition, H.264 also has high-quality smooth images. Because of this, H.264-compressed video data requires less bandwidth and is more economical during network transmission. It stands to reason that the emergence of H.264 can almost meet all the basic needs of our use, then, what kind of role does H.265 appear to play?

It is understood that H.265 is a new video coding standard developed by ITU-TVCEG following H.264. The former is technically based on the existing video coding standard H.264, and some other technologies are improved on the basis of retaining some mature technologies. For example, improving compression efficiency, improving robustness and error recovery capability, and reducing real-time delay, reducing channel acquisition time and random access delay, reducing complexity, and the like.

Therefore, in comparison with the H.264 protocol, if the H.264 protocol can achieve standard-definition digital image transmission at speeds lower than 1 Mbps, then H.265 can achieve 720P with a transmission speed of 1~2 Mbps (resolution 1280). *720) Normal high definition audio and video transmission. That is to say, the quality of the image can be upgraded to a new level with only a small increase. And this is the biggest surprise that the H.265 agreement will bring us.

H.265 behind the scenery is also a worry

The emergence of H.265 directly improved the quality of video imaging in the original network environment, and the traditional standard definition video was upgraded to the standard of high-definition video. It can even be said that the emergence of H.265 has a huge leap-forward development for the transmission of the entire network monitoring. For the security monitoring that has always pursued high-definition imaging, such a breakthrough can even be considered to have guaranteed the effect of the video in the transmission and processing process to the extreme.

However, although the emergence of H.265 has brought a huge breakthrough to our video surveillance, it still faces some problems to be solved in the development.

Payment standard retention application suspense

For a long time, China's video compression standards and payment are almost irrelevant. However, with the widespread use of international compression technology, and the impact of some foreign use methods. The rumors of H.265 application payment have gradually spread in our development.

In fact, different people have different views on how much H.265 payment has an impact. Many users believe that if the new standard adopts the charging model, then it is destined to have a significant impact on the popularity of technology. Eventually, this technology will be selectively selected to influence the development of the entire video processing technology. However, some insiders believe that the new standard will not charge fees. The impact on the successful promotion of this standard will not be great. After all, if there is a user with high-definition demand, the emergence of H.265 is the best way to deal with HD. Obviously, It will not be abandoned because it is expensive. For users who think that they are expensive, they may be more or less dependent on HD. In this case, the earlier compression standard is not enough.

Information security is worthy of attention

In general, although the sound of understanding the new standard is different, no one can deny the impact of charging on the diversion of technology applications. Although it may be that for H.265, the implementation of the fee does not have much impact on its own HD supply, but in my opinion, its delay in the overall development of network transmission is obviously not negligible.

International standards are in danger of leaking

For a long time, information security of network video has always been a topic of network monitoring, and in order to ensure the security of information, many systems have invested more in construction. For H.265 encoding, how to ensure the security of video information? If the video encoding is deciphered, how to make up for such loss is also a worrying topic.

Therefore, China is now further increasing its SCAC to promote independent intellectual property rights. Although domestic standards can alleviate the security pressure brought by international standards to a certain extent, for the security of video transmission, we obviously need an effective and effective response, rather than simply avoiding it.

In general, the emergence of the H.265 standard has brought great benefits to the transmission of network video. It can even be said that he is an indispensable application for the hypervisor of video surveillance. Although there may be many problems to be solved in our application, we still cannot deny that this is a huge progress in the development of network monitoring, or a breakthrough in the evolution of high definition. Under such a premise, these small problems faced by H.265 technology have become an inevitable stage in the development of high-definition technology. From this perspective, although there are still many small twists and turns in the current H.265 standard, it is already difficult to change the future popularity.