Video-based vibration target monitoring method
A target and video technology, applied in the direction of instruments, character and pattern recognition, computer components, etc., can solve the problem of low monitoring accuracy and achieve the effect of high monitoring accuracy
Active Publication Date: 2018-02-16
NO 719 RES INST CHINA SHIPBUILDING IND
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[0002] At present, the common monitoring equipment for vibrating targets is one-dimensional sensor, which can simply sense and monitor the vibration of the vibrating target. The monitoring cost is low and the application range is wide. It can monitor the vibration of the vibration target in one-dimensional direction, but the monitoring accuracy is low. When two-dimensional monitoring of the vibration target is required, it is difficult to achieve it only with a one-dimensional sensor.
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[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
[0029] see figure 1 As shown, the embodiment of the present invention provides a video-based vibrating target monitoring method, which specifically includes the following steps:
[0030] S1, obtain the video stream of the target to be tested during the test period, and select two adjacent frames as the monitoring starting point, the two adjacent frames include the current frame and the previous frame; in the previous frame image I 0 Select the vibration target to be tracked in ; the template width of the vibration target is w, the height is h, and the coordinates are (i 0 , j 0 ); image I 0 The width is W and the height is H; calculate the pixel distribution of the vibration target:
[0031] S2, enter the current frame, carry out the search of described vibration target in the current frame image I through the search frame, suppose image...
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The invention discloses a video-based vibration target monitoring method, and relates to the technical field of vibration monitoring. In each frame of image, a vibration target is searched through a search box, pixel similarity between the search box and the vibration target is calculated, an offset vector of the search box of a next search is calculated according to the pixel similarity, and theoffset vector is calculated through constant iteration to determine the position of the search box of the next search; and when the calculated offset vector is smaller than the pixel similarity, it isindicated that the current search box hits the vibration target, the position of the current search box is the position of the vibration target in the frame of image, so that two-dimensional monitoring of the vibration target is realized through video equipment, and the monitoring precision is high.
Description
technical field [0001] The invention relates to the technical field of vibration monitoring, in particular to a video-based vibration target monitoring method. Background technique [0002] At present, the common monitoring equipment for vibrating targets is one-dimensional sensor, which can simply sense and monitor the vibration of the vibrating target. The monitoring cost is low and the application range is wide. It can monitor the vibration of the vibration target in one-dimensional direction, but the monitoring accuracy is low. When two-dimensional monitoring of the vibration target is required, it is difficult to achieve it only with the one-dimensional sensor. [0003] Therefore, there is an urgent need for a technical solution that can realize two-dimensional monitoring of vibration targets and has high monitoring accuracy. Contents of the invention [0004] In view of the defects existing in the prior art, the object of the present invention is to provide a video-...
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IPC IPC(8): G06K9/00G06K9/62
CPCG06V20/40G06V10/759G06F18/22
Inventor 胡琮亮方明杰饶文培
Owner NO 719 RES INST CHINA SHIPBUILDING IND