Spatial modeling method used for linkage of single gun camera and multiple dome cameras

Abstract

The invention discloses a spatial modeling method used for linkage of a single gun camera and multiple dome cameras, relating to the fields of video surveillance, computer vision, pattern recognition and the like. The method comprises the following steps: (1) performing 3D spatial modeling on a monitored scene (201); (2) calculating the mapping relation of a coordinate point of a picture of the gun camera to a coordinate point of the true monitored ground (202); (3) obtaining a tracking detection result of the gun camera (203); (4) obtaining spatial position information of a tracked object (204); (5) calculating the offsets of the dome cameras (205); (6) controlling the dome cameras (206); (7) outputting the tracking result by the dome cameras (207). The tracked object is always positioned in center areas of the pictures of the dome cameras, so the defects of tracking picture discontinuity and dome camera picture judder are overcome; by using relevant mathematical principles, the position of the true object can be accurately and fast calculated by one-time scene calibration; by using the spatial modeling method, mathematical formulas of space geometry can be used for accurately calculating the offsets of the dome cameras, and the object tracking can be more continuous and more accurate.

Description

technical field [0001] The present invention relates to the fields of video surveillance, computer vision, pattern recognition, etc., and in particular to a space modeling method for linkage of a single gun machine-multi-ball machine; the method is especially suitable for the linkage intelligent visual monitoring of a single gun machine-multi-ball machine System (bolt refers to bullet camera, dome refers to dome camera). Background technique [0002] As an extremely effective means of modern management monitoring and security precautions, video surveillance has been widely used in various public places such as banks, stations, and office buildings. In recent years, due to the urgent need for public security and the continuous development of computer technology, video surveillance is changing from traditional models to intelligent surveillance, and its related technologies have gradually become research hotspots in computer vision. The monitoring system appears. The gun bal...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a space modeling method for the linkage of single gun machine and multi-ball machine, aiming at the problems existing in the prior art, how to overcome the discontinuous tracking picture of the dome machine and the deviation of the target from the picture of the dome machine during the linkage process of the gun-ball machine Center and other shortcomings, and make the operation process simpler and more convenient. Each parameter can be calibrated at one time, and the offset calculation of the ball machine is more accurate and conforms to the real data.

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