Gun camera and dome camera linkage system-based coordinate correlation method and device

Abstract

The invention discloses a gun camera and dome camera linkage system-based coordinate correlation method. The method includes the following steps that: as for the same scene, monitoring images of a gun camera to be calibrated and a dome camera to be calibrated are acquired; a first scale space image set and a second scale space image set are generated based on the monitoring images; extreme value sampling points are selected from the first scale space image set and the second scale space image set respectively, and a certain number of matching point combinations are screened from different scale space image sets; a certain number of calibration point combinations are further screened from the matching point combinations; a calibration matrix of the monitoring images of the gun camera and the dome camera is acquired according to the coordinates of the calibration point combinations; and pixel points in a second monitoring image, which are corresponding to specified pixel points in a first monitoring image can be determined. According to the prior art, errors exist on a calculated calibration matrix, and as a result, a corresponding relation between the gun camera and the dome camera is not accurate, and the problem of linkage tracking failure may be brought about, while, with the method of the invention adopted, the problem in the prior art can be solved.

Description

technical field [0001] The invention relates to the communication field, in particular to a coordinate correlation method and device based on a gun-ball linkage system. Background technique [0002] In recent years, with the development of science and technology, intelligent tracking technology has attracted more and more attention from people in the communication field, and it has been applied to more and more occasions, such as large exhibition halls, conference halls and dangerous road sections. Combining intelligent tracking technology to monitor the scene can save security manpower and avoid security loopholes caused by the mobility of security personnel. [0003] Ordinary smart speed domes can only simply detect whether someone has broken in, and cannot judge the movement of the intruder, while smart tracking speed domes can automatically identify the direction of movement of objects within the visual range by performing differential calculations on images, and automat...

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present invention provides a coordinate correlation method and device based on the gun-ball linkage system, which is used to solve the existing error in the calculated calibration matrix in the prior art, so that the corresponding relationship between the gun camera and the ball camera is inaccurate, causing linkage Tracking failed issues

Images