A kind of intelligent zoom video monitoring method and system

Abstract

The invention discloses a method and system for intelligent zoom video monitoring. The method includes the following steps that firstly, a monitoring site is divided into multiple preset regions according to the distance between the monitoring site and a camera and a reasonable shooting focal length is set for each preset region; secondly, a video frame is read in and target detection is conducted on the video frame; thirdly, distribution of each preset region on the video frame is determined, so that the preset region where the target is located is determined; fourthly, the focal length of the camera is adjusted to be the shooting focal length corresponding to the preset region where the target is located and the preset region where the target is located is shot in an amplified mode. The system comprises a cradle head, the camera, a video capture card and a monitoring host and the method for intelligent zoom video monitoring is adopted for zoom video monitoring. According to the method and system, the defects that the monitoring range is small, flexibility is lacking and a target at a long distance is difficult to distinguish in the traditional monitoring technology can be effectively overcome.

Description

technical field [0001] The invention relates to the field of video monitoring, in particular to an intelligent zooming video monitoring method and system. Background technique [0002] In recent years, security technology has developed rapidly at home and abroad. Video surveillance is widely used in security monitoring and other occasions because of its intuitive and convenient information content. It has become an important portable part of security prevention in financial, commercial, residential, community and other fields, and plays an important role in the security prevention of these places. Therefore, the current video surveillance system is more and more widely used. [0003] However, for traditional monitoring systems, in most open-air places that need to be monitored, fixed bullet cameras are mostly used. The cameras are fixed and the monitoring target environment is limited, resulting in a limited range of monitoring and insufficient flexibility; another On the ...

AI Technical Summary

Problems solved by technology

[0003] However, for the traditional monitoring system, in most open-air places that need to be monitored, most of the fixed bullet cameras are used. The cameras are fixed and the monitoring target environment is limited, resulting in a limited range of monitoring and insufficient flexibility; another On the one hand, because the monitoring method it adopts is passive monitoring, the camera cannot zoom, and the target cannot be optically magnified after shooting, which makes it difficult to distinguish the target with a long distance and low resolution.

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