Method for automatically and smoothly tracking target by cradle head

Abstract

The invention relates to a method for automatically and smoothly tracking a target by a cradle head, which comprises the following steps of: (1) acquiring target position information and cradle head state information and updating in real time; (2) calculating actual rotating speed and direction of a cradle head tracked moving target according to the target position information and cradle head state information, wherein the calculation method comprises the following steps of: calculating the angular speed and direction of the target moving relative to the cradle head, and correcting the angular speed and direction of the target moving relative to the cradle head according to deviation between the current actual rotating angle of the cradle head and a theoretical rotating angle of the target in the center of an image so as to obtain the actual rotating speed and direction of the cradle head tracked moving target; and (3) controlling the rotation of the cradle head to track the moving target according to the actual rotating speed and direction of the cradle head tracked moving target. The method is reasonable in design, realizes intelligent monitoring function of the moving target so as to position the moving target in a central range of a monitored picture, and has the characteristics of simple implementation, fast tracking, high accuracy, high real-time property and the like.

Description

technical field [0001] The invention belongs to the field of security monitoring, in particular to a method for a cloud platform to automatically and smoothly track a target. Background technique [0002] At present, the PTZ camera is one of the most commonly used monitoring front-end equipment in the monitoring field. Surveillance personnel can manually control the pan-tilt camera to rotate and zoom, so as to realize the observation of the monitoring scene and monitoring objects. With the development of intelligent video analysis technology, monitoring equipment with intelligent functions is more and more popular among users. For example, monitoring equipment with automatic target tracking function can detect and Find the location of the moving target, control the rotation and scaling of the monitoring equipment to realize the automatic tracking function of the moving target. This automatic tracking method can realize the shooting of the activities of moving targets in th...

AI Technical Summary

Problems solved by technology

However, this method cannot guarantee that the moving target is always within the center of the monitoring field of view, and it is necessary to accurately judge whether the moving target will leave the monitoring field of view, otherwise it is easy to lose the target; when the target moves quickly, it needs to be continuously controlled at a small time interval The rotation of the pan / tilt makes the monitoring picture fluctuate and still, the visual effect is not good, and it is not conducive to a good observation of moving targets

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