In the era of big data, people pay more and more attention to intelligent video analysis technology. Intelligent video analysis relies on video algorithm to analyze the video content. By extracting the key information in the video, marking or related processing, and forming the monitoring mode of corresponding events and alarms, people can quickly retrieve through various attribute descriptions. If the camera is regarded as human eyes, the intelligent video surveillance system can be understood as human brain. With the help of the powerful computing function of the processor, intelligent video technology can analyze the massive data in the video picture at high speed and obtain the information people need.

Now intelligent video analysis technology has been gradually accepted by people, but before the emergence of intelligent video analysis technology, the analysis of massive video has always been a difficult problem for people. For example, what should people do if they accidentally leave valuables in taxis or buses? Many people think that with surveillance cameras, things will be much easier, but is this really the case? For the relevant investigators, querying a large amount of video surveillance information is a painful task, just like looking for a needle in a haystack.

Intelligent video analysis technology brings good news to solve the rapid search and analysis of massive information. In major criminal cases, the police can quickly find the target and solve the case. The intelligent video analysis system can be used for pre-warning and prevention. For example, the face recognition and comparison system. The public security organ has built a face recognition and comparison system, established a face capture database, archived face information, and established a relationship with personal identity. In the process of practical application, it has adopted a number of intelligent analysis technologies such as face search, blacklist deployment, stranger recognition, etc., which has greatly improved the prevention effectiveness of video surveillance, Can make criminals invisible. As HD products related to intelligent video analysis have not been really popularized, and the layout of HD monitoring in society is not perfect, it is only used for some industries, which is far from being fully popularized. Only by using high-definition cameras in large quantities and increasing the possibility of capturing clear and positive faces, can we have better practical results. In addition, public security and enterprises need to strengthen cooperation and increase the deployment density of monitoring points.

Since the deployment of a large number of monitoring points will bring a large amount of video, we need to pay attention to the application of intelligent video analysis technology, make rational use of technology, man-machine cooperation and give full play to the advantages of technology, so as to effectively assist investigators.