Quick stereo positioning method for video monitoring

A technology of stereo positioning and video monitoring, applied in TV, color TV, closed-circuit television system, etc., can solve the problems of inefficient and slow adjustment process, insufficient response in time, unacceptable, etc., to improve convenience and speed, and improve work efficiency Effect

Inactive Publication Date: 2010-12-01
SANLI VIDEO FREQUENCY SCI & TECH SHENZHEN
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, such complicated steps will inevitably lead to the inefficiency and slowness of the entire adjustment process. When an emergency occurs and it is necessary to quickly respond to and zoom in on a certain area of ​​the monitoring screen, the corresponding speed of the system will have many problems

Method used

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  • Quick stereo positioning method for video monitoring
  • Quick stereo positioning method for video monitoring
  • Quick stereo positioning method for video monitoring

Examples

Experimental program
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Example Embodiment

[0021] like figure 1 Shown, the present invention relates to a kind of video monitoring fast stereotaxic method, it comprises the step

[0022] a) Set positioning goals, such as figure 2 , the user sets the target through the client, usually using the image window, by directly clicking with the mouse or selecting a frame; if it is a mouse click, the system determines that the click is the starting position of the target and calculates the coordinates of the target image position; if it is a frame selection, Then select the center point of the framed image as the starting position of the target and calculate the position coordinates of the target image;

[0023] b) Calculate the focal length of the camera, and determine the focal length according to the size of the CCD used in the camera and the vertical or horizontal angle of the camera lens;

[0024] like image 3 , which is calculated according to the formula

[0025] Where L is the focal length of the camera to be ca...

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Abstract

The invention provides a quick stereo positioning method for video monitoring. The automatic positioning and adjusting control method suitable for a video monitoring system comprises the following steps: setting a positioning target, calculating the camera focal length, calculating the deviation angle of the target and a CCD center, calculating the number of moving steps of a cradle head motor, calculating zoom magnification, adjusting zoom and adjusting real-time positioning of the target. The method can automatically calculate the offset of the target and the number of steps of a self attitude adjusting motor required to move according to the relative position of the target area in the whole CCD image area, after the zoom magnification of the a lens is adjusted as required, a user can adjust the image without continuously depending on the actions of eyes of and a mouse, and the actions can be continuously and automatically controlled in position, thereby greatly improving the working efficiency of the monitoring system, and also improving the convenience and rapidness of using the monitoring system in a narrow bandwidth network environment for a user side.

Description

【Technical field】 [0001] The invention relates to an image and video processing method, in particular to a fast stereoscopic positioning method for images in video monitoring. 【Background technique】 [0002] In the existing digital network video monitoring system, for the image in the video point of the front-end monitoring camera, the purpose of adjusting the image position can only be achieved through the pan-tilt control action. In actual monitoring applications, for a certain area of ​​the image being monitored, the user may often need to quickly locate it and zoom in on this part of the image for viewing. However, the existing surveillance cameras can only be identified by human eyes in real time and through mouse control software to repeatedly perform complicated control actions on the pan / tilt of the surveillance camera, then center the feature area of ​​interest in the image, and then control the camera The zoom in / out / focus / aperture of the lens can be used for imag...

Claims

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Application Information

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IPC IPC(8): H04N7/18H04N5/232
Inventor 刘传华
Owner SANLI VIDEO FREQUENCY SCI & TECH SHENZHEN
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