Method capable of amplifying and tracking goal in master-slave mode between fixed camera and pan tilt zoom camera

A technology for fixing cameras and PTZ cameras, which is applied in the direction of using feedback control, and can solve problems such as unfavorable user identification.

Inactive Publication Date: 2013-05-15
SHANGHAI AWARE INFORMATION TECH
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Problems solved by technology

It is also not conducive to the user to identify the specific location of the current target, determine ...

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  • Method capable of amplifying and tracking goal in master-slave mode between fixed camera and pan tilt zoom camera
  • Method capable of amplifying and tracking goal in master-slave mode between fixed camera and pan tilt zoom camera
  • Method capable of amplifying and tracking goal in master-slave mode between fixed camera and pan tilt zoom camera

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Embodiment Construction

[0100] based on the following Figure 1 to Figure 5 Preferred embodiments of the present invention will be described in detail.

[0101] The present invention provides a kind of method that carries out target enlargement, master-slave tracking between fixed camera and pan-tilt camera, and this method comprises the following steps:

[0102] Step 1. System initialization, fixed camera and gimbal camera registration (only need to be done once during system initialization);

[0103] Each fixed camera image coordinate All correspond to a gimbal control coordinate and scaling factor ;

[0104] Fit the slices through the collected feature points, and use the linear method to fit the mapping relationship between the image coordinates and the gimbal coordinates;

[0105] Step 1.1. Collect feature points and obtain n fixed camera feature points And the PTZ parameters of the corresponding gimbal camera ;

[0106] Step 1.1.1, select the collection method, if you choose manual...

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Abstract

The invention discloses a method capable of amplifying and tracking a goal in a master-slave mode between a fixed camera and a pan tilt zoom (PTZ) camera and relates to the field of video surveillance. The method capable of amplifying and tracking the goal in the master-slave mode between the fixed camera and the PTZ camera achieves that the goal in an image is quickly amplified and tracked in the master-slave mode. The method includes the steps of building matching relation between view of the wide angle fixed camera and view of the PTZ camera, thereby converting a goal image coordinate found in the fixed camera to a corresponding PTZ control command, controlling PTZ to automatically aiming at the goal to appropriately zoom, and driving PTZ camera by a tracking result of the fixed camera to keep tracking to the goal. The method capable of amplifying and tracking the goal in the master-slave mode between the fixed camera and the PTZ camera has the advantages of being capable of achieving 'what you see is what you get' due to the fact that the goal is directly clicked and selected through the fixed camera with the wide view angle, fast in response speed of a user, simple and convenient, good in user experience, capable of avoiding difficulties in dynamic tracking to form a reliable solution by adopting the mature static camera goal tracking technology and matching with fixed PTZ camera coordinate mapping steps with high reliability.

Description

technical field [0001] The invention relates to the field of security monitoring, in particular to a method for target amplification and master-slave tracking between a fixed camera and a pan-tilt camera. Background technique [0002] The wide-angle fixed camera is used to form a fixed overall picture so that the user can keep abreast of the overall situation of the monitoring area. Wide-angle cameras usually have a viewing angle of more than 60 degrees, and even up to a 360-degree panorama. The wide-angle fixed camera is simply called a fixed camera. [0003] The PTZ camera is used to enlarge and track the target. The gimbal camera can zoom in on the target by controlling the horizontal, pitching and zooming. The PTZ camera is also called PTZ (pan, tilt, zoom all-round (up and down, left and right) movement and lens zoom, zoom) camera, or high-speed ball, etc. The PTZ coordinates have three PTZ control quantities, which are P (Pan, Horizontal rotation), T (Tilt, pitch),...

Claims

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Application Information

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IPC IPC(8): G05D3/12
Inventor 范柘
Owner SHANGHAI AWARE INFORMATION TECH
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