Nowadays, the continuous development of technology has put forward intelligent requirements for video surveillance, enabling computers to understand the content of video images through digital image processing and analysis. This is a safe city, smart city project, and bank that is accelerating construction in China. Monitoring, community, station and other heavy areas provide protection, and some new business opportunities are quietly growing among them.
4K technology: intelligent monitoring of "big scenes and small details"
As long as it is related to images or video, we can see 4K figures, such as mobile phones, camcorders, computer monitors, tablets and so on. According to research, the global security industry's ultra-high definition (4 megapixels or more) market will grow more than five times by 2018. Thanks to its high resolution, wide angle and high codec video system, 4K will be unique. Advantages account for the majority.
At present, 4K ultra-high-definition technology is mainly used in the environment of “big scenes and small details†such as railway stations. In addition to enabling a wider range of monitoring, the rich details of 4K images allow various departments to share information without having to see different Multiple cameras are installed in the area to save investment costs.
Codec technology: from H.264 to H.265
In addition to collecting data at the front end, video surveillance also requires codec and intelligent analysis on the back end. Although the main force in the market is still H.264 technology, the coding efficiency potential is always exhausted and cannot be satisfied. From high-definition to intelligent demand, in this case, it is believed that the 4K future codec technology - H.265 came into being.
Some people say that H.265 will push the security industry to a new height. This is not unreasonable. Both user cost and profit margin have a great look. If you use the previous H.264 technology, 4 2 million deposits will need 60G & TImes; 4 & TImes; 20 = 6T, which requires 2 3T hard drives, while H.265 technology only needs: 30G & TImes; 4 & TImes; 20= 2.4T, only need a 3T hard drive, which can save a thousand dollars of monitoring hard drive!
Machine Vision: Let the machine "understand" the target
Machine vision is one of the branches of artificial intelligence. It is mostly used in the semiconductor and electronics industries in foreign countries. Today, China has become one of the most active areas of machine vision applications with the status of “Global Manufacturing Processing Center†and welcomed in 2010. It has exploded.
In short, machine vision is to use the machine instead of the human eye to make measurements and judgments, and the object to be ingested is converted into an image signal by the image pickup device. Among the ingesting targets, target recognition technology and stable tracking method are one of the key factors in the development of machine vision. It has been widely used in many fields, such as face recognition, and in intelligent traffic management, motor vehicle detection, parking. License plate recognition for occasions such as field management.
The video surveillance system with camera as the core is one of the representative applications of machine vision. It has been widely used in security, transportation, building, industrial and other industries. The optimistic growth rate of machine vision will also bring good video surveillance. prospect.
Starlight Camera: Finding the evil in the dark
As we all know, the dimly lit environment is easy to hide danger. Criminal suspects often commit crimes in such locations, and video surveillance is the main facility for security and post-test evidence. Its imaging effect in dim environment is the focus of everyone's attention.
As the mainstream product in the security surveillance market in the past two years, the starlight camera is different from the ordinary camera that can only display black and white images, and can display clear color images without any auxiliary light source. Low-light imaging technology has begun to develop and mature, and more and more companies have introduced a variety of high-definition star-level cameras.
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