Linkage method and system of monitoring camera
A camera and linkage technology, applied in CCTV systems, components of TV systems, components of color TVs, etc., can solve problems such as inability to capture images, camera parallax and fixed monitoring range, and achieve rich image capture results, improve Parallax and effect of monitoring range
Active Publication Date: 2021-06-04
HANGZHOU HIKVISION DIGITAL TECH
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[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art based on the content of the present invention belong to the protection scope of the present invention.
[0028] A monitoring camera linkage method provided by an embodiment of the present invention is applied to a master camera in a linkage camera group that monitors the same scene. The linked camera group includes a master camera and a controlled camera. Both the master camera and the controlled camera are capable of PTZ changes, and communication between the master camera and the controlled camera is possible. In a specific application, there may ...
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The embodiment of the invention provides a linkage method and system of a monitoring camera. The linkage method of the monitoring camera is applied to a main control camera in a linkage camera group for monitoring the same on-site scene. The linkage camera group comprises a master control camera and a controlled camera which can perform PTZ (Pan / Tilt / Zoom) variation; the PTZ coordinates of the main control camera when the monitoring target is detected are sent to the controlled camera, so that the controlled camera receiving the PTZ coordinates of the main control camera converts the PTZ coordinates of the main control camera into the PTZ coordinates of the controlled camera based on a pre-stored calibration relation between the main control camera and the controlled camera, and image acquisition is carried out according to the PTZ coordinates of the controlled camera; wherein the calibration relation between the master control camera and the controlled camera comprises a homography matrix between the master control camera and the controlled camera, and a camera height ratio between the master control camera and the controlled camera. According to the scheme, the parallax and the monitoring range of the linkage camera can be improved.
Description
technical field [0001] The invention relates to the technical field of monitoring, in particular to a monitoring camera linkage method and system. Background technique [0002] With the development of monitoring technology, image acquisition can be carried out through the linkage of two cameras to achieve more comprehensive monitoring of the same scene. [0003] In related technologies, the two cameras used for linkage are usually cameras that cannot perform PTZ (Pan / Tilt / Zoom, translation / tilt / zoom, representing the left / right / up and down movement of the pan / tilt, and the zoom and zoom of the lens). During linkage, feature point matching can be performed on the images collected by the two linked cameras, and the conversion relationship between the two image coordinate systems can be calculated by using the matching results, and the information about the target in the two images can be converted by using the conversion relationship to the same image coordinate system as the...
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Login to View More IPC IPC(8): H04N7/18H04N5/232H04N5/225H04N5/262
CPCH04N7/181H04N5/2628H04N23/45H04N23/67
Inventor 王欢沈康马伟民
Owner HANGZHOU HIKVISION DIGITAL TECH