Intelligent video analysis system and method based on PTZ video camera cruising

Abstract

The invention provides an intelligent video analysis system and method based on PTZ video camera cruising. The system comprises a front-end PTZ video camera and a rear-end server. The rear-end server comprises a cruising configuration module, a PTZ video camera control module, a video analysis configuration module, a system control module, an intelligent video analysis module and an alarm management module. The cruising configuration module is used for setting cruising groups and cruising points of the system to generate a cruising list. The PTZ video camera control module is used for analyzing the cruising list and generating a cruising execution list automatically. The video analysis configuration module is used for configuring related intelligent video analytical algorithms for all the cruising points and configuring the cruising points into the cruising list. The system control module is used for calibrating video camera parameters of each cruising point, calling a video stitching module and automatically generating a panorama splicing map in the whole cruising period according to the execution sequence of the cruising points. The intelligent video analysis module is used for conducting target detection and event analysis according to related setting and giving a real-time alarm to a detected event. The alarm management module is used for conducting corresponding local management on the alarm.

Description

technical field [0001] The invention belongs to the fields of video monitoring, video analysis and pattern recognition, and in particular relates to an intelligent video analysis system and method based on PTZ camera cruise. Background technique [0002] Video surveillance is an important part of the security system. With the development of video surveillance technology, video cameras have been widely used to monitor various environments, areas and places in real time. Compared with fixed cameras, PTZ cameras have the advantages of variable viewing angle and variable focal length, larger monitoring scenes and wider range of tracking targets, and have been more and more widely used. [0003] PTZ camera tracking technology is a monitoring technology that uses image processing technology to realize target discovery and control PTZ cameras to locate, track and capture moving targets within a certain scene range. This technology can be used in road condition monitoring, public p...

AI Technical Summary

Problems solved by technology

However, in the current monitoring field, a camera is usually only responsible for the area it monitors, and although each PTZ camera can move, the monitoring range is still very limited. Information needs to be completely dependent on the feedback of the tracking algorithm, it is difficult to accurately control the PTZ camera, and the current automatic PTZ tracking algorithm is not suitable for small targets and environments, and it is not yet widely used on a large scale

[0004] The target detection and tracking algorithm based on static cameras is relatively mature, but due to the limited field of view of a single camera, a large surveillance field of view requires multiple cameras to achieve coverage. In the actual target tracking system, more multi-camera systems are used. In the case of a certain budget, it is inevitable to increase the cost of the system or reduce the quality of the camera, and because the camera scene is fixed, in order to take into account the coverage of the camera's field of view, the intelligent video analysis algorithm generally cannot obtain the detailed features of the detection target, such as obtaining the tracking Face information of people and license plate information of tracked vehicles

[0005] In view of the previous introduction, we found that the current common systems, whether it is the automatic tracking system based on PTZ cameras or the target detection and tracking system based on fixed cameras, have relatively large problems, which cannot meet the needs of video surveillance systems with as few cameras as possible to achieve more Large-scale coverage, the need for more accurate intelligent video analysis effects, how to fully exploit the characteristics of PTZ cameras, and how to combine the characteristics of PTZ cameras for intelligent video analysis system architecture have become the core issues we want to solve

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