Application method of long-focus shooting ptz camera system free of repeated zooming viewfinding

Abstract

The invention relates to an application method of a long-focus shooting ptz camera system free of repeated zooming viewfinding The application method is characterized in that on the basis of a conventional ptz camera, a wide-angle fixed-focus camera is installed right above the main camera, and the function of the long-focus shooting ptz camera system is achieved through the following steps: S1, protocol development of the main camera and the wide-angle fixed-focus camera is completed; S2, a processing system of the main camera is operated to carry out processing on two paths of video signals;S3, a zooming frame is added to the wide-angle picture by operating the processing system of the main camera, and a dual-camera system with calibration finished becomes a module; and S4, viewfindingand shooting are carried out. According to the method in the invention, when zooming is carried out in the shooting process, if a long-focus lens target object shot by the long-focus camera is lost, the long-focus state does not need to be exited, only the zooming frame needs to be moved to the target object, and the target object can appear in the picture of the long-focus lens; after the currenttarget shooting is finished, only the zooming frame on the wide-angle picture needs to be moved to a next target, so that repeated zooming-free viewfinding is achieved, and the shooting efficiency and the shooting effect are improved.

Description

technical field [0001] The invention relates to the field of camera processing technology methods, in particular to an application method of a telephoto pan-tilt camera system without repeated zooming and framing. Background technique [0002] The existing telephoto camera / PTZ camera system needs to place the target object in the center of the screen when shooting and framing, and keep the target object in the center of the screen during the zooming process of the camera, so as to ensure that the zoom factor reaches the maximum. If you need to change the target, because the field of view (2 degrees) is too small in the case of high-magnification zoom (30 times), you must reduce the zoom factor, and then find the next target in a relatively wide-angle field of view. Then repeat the above-mentioned framing process to complete the framing of the next target. When the existing telephoto camera / PTZ camera system shoots, there is always only one picture on the display screen, so ...

AI Technical Summary

Problems solved by technology

When the existing telephoto camera / PTZ camera system shoots, there is always only one picture on the display screen, so if the picture angle is small, it is difficult to control and change the target, which will lead to losing the position of the target object in the center of the picture , the target may be lost, and the angle of view is too small at this time, in order to find the target, the camera must be operated to return to the wide-angle state; moreover, because it is difficult to change the target, after the shooting of the current target is completed, because the angle of view is too small, it is not known The relative positional relationship between the next target and the current target, if you don't return to the wide-angle state, you can't find the target

Due to the above reasons, the existing telephoto camera / PTZ camera system will cause inconvenience to the photographer in actual use and cannot meet the actual needs

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