Method and device for detecting faults in the direction of the pan/tilt
A fault detection and pan/tilt technology, applied in image data processing, instruments, closed-circuit television systems, etc., can solve the problems of applicability and accuracy reduction of pan/tilt fault detection methods, and achieve the effect of improving accuracy
Active Publication Date: 2018-08-14
SHENZHEN ZTE NETVIEW TECH
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Problems solved by technology
The inventors of the present invention have found that the existence of these factors will lead to a reduction in the applicability and accuracy of the pan / tilt fault detection method provided by this patent
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[0050] The technical scheme of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific examples, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention .
[0051] Such as figure 1 As shown, a kind of PTZ direction fault detection method provided by the embodiment of the present invention includes the following steps:
[0052] S10. Send a pan-tilt control instruction to the pan-tilt to be tested, and obtain at least two sequence images from a video device carried on the pan-tilt to be tested as images to be analyzed;
[0053] S20, performing corner feature extraction on the image to be analyzed;
[0054]S30. Filtering the extracted corner features by OSD corner features generated due to the influence of OSD information;
[0055] S40, matching the filtered corner features of the image to be analyzed, ...
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The invention discloses a holder direction fault detection method and device. The method comprises the steps that a holder control instruction is sent to a holder to be detected, and at least two sequence images are acquired from video equipment borne on the holder to be detected to act as images to be analyzed; angular point characteristic extraction is performed on the images to be analyzed; filtering of OSD angular point characteristics generated by influence of OSD information is performed on the extracted angular point characteristics; matching of the angular point characteristics of the images to be analyzed after filtering is performed, and a holder movement direction is confirmed; matching of the holder movement direction and the sent holder control instruction is judged, and if the judgment result is yes, information indicating normality of the holder to be detected is outputted; or information indicating a fault in the movement direction of the holder to be detected is outputted. Compared with methods in the prior art, influence of OSD angular point information on holder fault detection is filtered by adopting the method so that accuracy of the holder fault detection method matched via characteristic information is enhanced.
Description
technical field [0001] The present invention relates to the field of video surveillance, in particular to a method and device for detecting faults in the direction of a pan-tilt. Background technique [0002] In the video surveillance system, the movement control function of the camera uses a large number of PTZ. The pan / tilt is a supporting device for installing and fixing the camera, and it is usually divided into two types: fixed and electric pan / tilt. Among them, the fixed pan / tilt is suitable for the situation where the monitoring range is not large. After installing the camera on the fixed pan / tilt, you can adjust the horizontal and pitch angles of the camera. After reaching the best working posture, you only need to lock the adjustment mechanism; The PTZ is suitable for the environment of scanning and monitoring a large area, and it can expand the monitoring range of the camera. The high-speed attitude of the electric pan / tilt is realized by a number of executive mo...
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IPC IPC(8): H04N7/18G06T7/00G05D3/12
Inventor 徐庆华林彬吴贻刚顾恩超柯辉
Owner SHENZHEN ZTE NETVIEW TECH