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

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),...

AI Technical Summary

Problems solved by technology

It is also not conducive to the user to identify the specific location of the current target, determine the direction of travel of the target, and whether there are people trailing and other surrounding conditions.

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