Monitoring target shooting tracking method and system

Abstract

The invention provides a monitoring target shooting tracking method and system. The method comprises steps of sequentially moving the correction targets to a plurality of position points; controllinga main camera device to aim at the correction target to shoot and record the current rotation and focusing parameters of the main camera device corresponding to a plurality of position points to forma first lookup table; controlling auxiliary camera devices to be sequentially aligned with the correction target, and respectively recording tracking rotation and focusing parameters of each auxiliarycamera device corresponding to a plurality of position points to form a second lookup table; when the monitoring target enters the to-be-monitored site, controlling the main camera device to be aligned with the monitoring target and recording the rotation and focusing parameters of the main camera device at the moment, and meanwhile, looking up a table in a first lookup table to obtain the current position parameter of the monitoring target; enabling the auxiliary camera device to obtain a current position parameter and look up a table in a second lookup table to obtain a corresponding rotation and focusing parameter of the auxiliary camera device; and controlling the auxiliary camera device to be immediately aligned with the monitoring target according to the corresponding rotation and focusing parameters.

Description

technical field [0001] The invention relates to the field of surveillance camera, in particular to a method and system for photographing and tracking a surveillance target. Background technique [0002] At present, the lighting system of high-zoom surveillance cameras is mainly based on coaxial light sources. Small and medium-sized cameras are often equipped with multiple visible or infrared LED lights next to the lens, while the light source of large cameras is a searchlight set up next to the camera, which rotates with the direction of the lens. However, the coaxial light source has the following disadvantages: (1) Usually the light source does not zoom in on the angle of illumination, so when the object of interest is far away and the camera is zoomed out to tens of times, the lighting intensity is not bright enough because the distance is too far; (2) ) The distance between the coaxial light source and the camera lens is close. When it is raining, snowing or foggy, part...

AI Technical Summary

Problems solved by technology

However, the coaxial light source has the following disadvantages: (1) Usually the light source does not zoom in on the angle of illumination, so when the object of interest is far away and the camera is zoomed out to tens of times, the lighting intensity is not bright enough because the distance is too far; (2) ) The distance between the coaxial light source and the camera lens is close. When it is raining, snowing or foggy, part of the strong light that goes out will be reflected back immediately, which will cause the shooting picture to be overexposed or interfere with bright spots; (3) The light source marks the camera’s Position, so that the monitored person (such as an enemy or thief) is easy to defend

For example, when the camera finds something unusual in low-light or infrared mode, it can directly turn on the lighting or street lights in that corner. However, if the area is larger or has terrain restrictions, such as fish farms or minefields, fixed area lighting cannot cover it. When it is necessary, people need to directly turn the searchlight or camera on it to illuminate the area, similar to stage spotlight lighting, this kind of lighting effect is the best, the clearest, and the better the warning effect to the monitored person, but generally Must rely on manpower to concentrate on control to align with moving targets

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