Method for automatically and smoothly tracking target by cradle head

A technology for smooth tracking and moving targets, applied to color TV components, TV system components, TVs, etc., can solve problems such as easy to lose targets, poor visual effects, unfavorable observation of moving targets, etc., to achieve rapid tracking, Increase flexibility and design rational effects

Inactive Publication Date: 2011-08-03
TIANJIN YAAN TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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;

Method used

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  • Method for automatically and smoothly tracking target by cradle head
  • Method for automatically and smoothly tracking target by cradle head
  • Method for automatically and smoothly tracking target by cradle head

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Embodiment Construction

[0035] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:

[0036] A method for the pan-tilt to automatically and smoothly track a target, by controlling the pan-tilt to rotate continuously to keep the moving target always within the center of the monitoring screen. The pan-tilt-mounted camera can make the pan-tilt camera rotate 360 ​​degrees in the horizontal direction and 90 degrees in the vertical direction. Rotate to a certain angle so that the target is in the center of the monitoring screen. When the target moves within the monitoring range, we can control the pan / tilt to rotate to a certain angle so that the target remains in the center of the monitoring screen. This rotation angle is called the theoretical rotation angle of the pan / tilt, that is, no matter what position the pan / tilt is currently Under the rotation angle, as long as the pan / tilt is controlled to rotate to this theoretical rotation a...

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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...

Claims

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Application Information

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IPC IPC(8): H04N5/232H04N7/18
Inventor 张羽
Owner TIANJIN YAAN TECH CO LTD
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