A video intelligent analysis method and device
An intelligent analysis and video technology, applied in TV, color TV, closed-circuit television system, etc., can solve the problems of increased hardware resources and large investment in hardware resources, and achieve the effect of reducing processing pressure and saving storage resources
Active Publication Date: 2016-05-11
ZHEJIANG UNIVIEW TECH CO LTD
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Problems solved by technology
First of all, the optimization of the analysis algorithm has the bottleneck of objective laws, and the deployment of more hardware resources requires a large investment. When the amount of video data doubles, the investment in hardware resources will also double. The deployment of users in the entire monitoring network Faced with very high cost pressure
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[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Please refer to figure 1 , figure 1 It is usually a simplified network diagram formed by abstracting a large monitoring network. A monitoring network usually includes front-end encoding equipment, back-end decoding equipment, various monitoring servers, and network equipment. The front-end encoding equipment may include an independent encoder EC, an encoder IPC integrated with a camera, and the like. In a large monitoring network, the deployment of such front-end encoding devices may be as many as tens of thousands or even millions of units.
[0021] In the existing monitoring business process, the front-end encoding equipment will encode the video stream to form a video frame, and then send it out through the network. The back-end decoding device will decode the video frame after receiving it and display it to the user who needs to...
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The invention provides an intelligent video analysis method, which is applied to a rear-end host in a monitoring system. The method comprises the following steps of: (A), screening a video frame carrying a visual information tag from video frames generated by front-end encoding equipment, wherein visual information is a visual element variable, a visual element comprises one or more of a video motion vector, image brightness and chromaticity, and the visual information tag indicates that the visual information carried by the video frame is consistent with a preset variation condition of the front-end encoding equipment; and (B), analyzing the video frame carrying the visual information tag according to a preset application analysis rule, and if the video frame is matched with the application analysis rules, storing an analysis result into a database as an application tag. The conventional resources of a great amount of front-end encoding equipment are fully utilized, and analysis processes for the video frames are widely distributed to a great number of nodes of a network, so that the processing capability of rear-end equipment is greatly alleviated.
Description
technical field [0001] The invention relates to video analysis technology in the field of video monitoring, in particular to a business distributed video intelligent analysis method and device. Background technique [0002] IP network-based video surveillance has gradually developed into a mainstream solution in the industry, and has been successfully applied to large-scale projects such as safety projects, expressways, public security networks, and parks. Please refer to figure 1 , The standardization and openness of IP also make it easy to integrate various network islands, make it easy to expand the network scale, and the scale of the monitoring network becomes larger and larger. On the other hand, with the wide application of high-definition video, not only the network needs to carry more traffic. The development of surveillance-related applications has also been challenged, because high-definition video contains massive amounts of data. For example, the deployment of...
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IPC IPC(8): H04N5/14H04N7/18
Inventor 吴坚周斌陈尚武章贤君
Owner ZHEJIANG UNIVIEW TECH CO LTD