Full-view-field-based controlling method and apparatus of pan-tilt-zoom camera
A pan-tilt camera and full-view technology, applied in the direction of use feedback control, image analysis, image data processing, etc., can solve problems such as inefficiency, and achieve the effect of simple operation and high adjustment efficiency
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Embodiment 1
[0025] figure 1 The implementation flow of the camera control method provided by the first embodiment of the present invention is shown, and the details are as follows:
[0026] In step S101, the target angle of view to be switched of the pan-tilt camera designated by the user in the full view diagram is received, the angle of view includes the size of the angle of view and the direction of the angle of view, and the full field of view is the scene where the pan-tilt camera is located A general view of the installation location.
[0027] The full-view diagram is a full-view diagram of the installation position of the scene where the camera is located. Partial images acquired by the pan-tilt camera at different viewing angles are spliced by a computer vision algorithm, which covers a part or all of the field of view of the pan-tilt camera.
[0028] For example, if the camera is set at the entrance of the residential area, according to the rotation range of the camera's pan-...
Embodiment 2
[0041] figure 2 The implementation flow of the camera control method provided by the second embodiment of the present invention is shown, and the details are as follows:
[0042] In step S201, the calibration information of the pan-tilt camera is measured.
[0043] The calibration of described pan-tilt camera, promptly adopts calibration object, by standard computer vision algorithm, can measure the corresponding internal parameter K of pan-tilt camera when double focal length, the internal parameter of camera mainly comprises: effective focal length, optical center, Radial distortion and tangential distortion etc.
[0044] In step S202, a full view view of the installation position of the scene where the pan-tilt camera is located is obtained.
[0045] Specifically, the full-view diagram of the installation position of the scene where the pan-tilt camera is located, the partial images acquired by the pan-tilt camera at different angles of view are spliced by computer vis...
Embodiment 3
[0053] image 3 The implementation flow of the camera control method provided by the third embodiment of the present invention is shown, and the details are as follows:
[0054] In step S301, the target angle of view to be switched of the PTZ camera designated by the user in the full field of view is received, the angle of view includes the size and direction of the angle of view, and the full field of view is the scene where the PTZ camera is located A general view of the installation location.
[0055] In step S302, according to the pre-measured calibration information of the pan-tilt camera, the control parameters of the pan-tilt camera corresponding to the target viewing angle specified by the user are calculated.
[0056] In step S303, the pan-tilt camera is controlled to switch to the target position according to the calculated control parameters of the pan-tilt camera.
[0057] Step S301 to step S303 are the same as step S101 to step S103 in the first embodiment.
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