Early warning method and camera

Abstract

The embodiment of the invention discloses an early warning method and a camera. The early warning method and the camera solve the problem that the boundary crossing time cannot be early warned by the camera. According to the early warning method and the camera, the method comprises the following steps: extracting all foreground blocks in a t-th frame image by utilizing a background model constructed with a pixel-based random sampling conserved modeling method by the camera, and judging whether target foreground blocks are contained in all the foreground blocks by utilizing a preset cascade classification model, if the target foreground blocks are contained in all the foreground blocks, predicting the action orientation of the target foreground blocks by utilizing the target search model based on a histogram intersection kernel (HIK) matching algorithm, if the action orientation of the determined target foreground blocks point to a warning region, sending an early warning alarm to a monitoring station by the camera. By predicting the action orientation of the target foreground blocks, real-time tracking of the target foreground blocks can be effectively realized, and early warning can be effectively performed.

Description

technical field [0001] The invention relates to the field of monitors, in particular to an early warning method and a camera. Background technique [0002] In today's society, cameras are ubiquitous, and video surveillance systems are constantly being updated. The purpose of setting up cameras is to effectively prevent illegal incidents and give perpetrators a psychological deterrent effect. The use of the monitoring system has also greatly liberated the monitoring personnel. In the past, 20 on-site patrol personnel can now work with 1 monitoring personnel. Finish. At the same time, monitoring personnel can conduct remote command and dispatch only through the terminal, which improves work efficiency. More importantly, the monitoring system has a video recording function, which is convenient for obtaining evidence afterwards. [0003] The rapid development of the economy has led to the growth of unstable factors. In order to better build a stable and harmonious society, th...

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Problems solved by technology

[0004] The embodiment of the present invention provides an early warning method and a camera, which can effec

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