A method for identifying the deflection polarity of rudder blades based on motion detection
A technology of deflection polarity and identification method, which is applied in the field of image processing, and can solve problems such as high risk, difficulty in distinguishing, and small deflection angle
Active Publication Date: 2018-03-09
HUAZHONG UNIV OF SCI & TECH
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[0005] The present invention provides a method for identifying the deflection polarity of the rudder blade based on motion detection, which can solve the technical problems of low efficiency and high risk in judging the deflection polarity of the rudder blade by human eyes, and difficulty in distinguishing due to the small deflection angle. Simple, reliable, fast recognition
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[0100] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0101] figure 1 The identification device of the method for identifying the deflection polarity of rudder blades based on motion detection provided by the present invention. The hardware environment of the identification device includes a computer, an industrial camera, and rudder blade group for deflection polarity identification and rudder blade group for deflection identification Including rudder blade 1 to rudder blade 4, the optical axis direction of the industrial camera is perpendicular to the plane where each rudder blade rotation axis L is located, the rudder blade image is collected...
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The invention discloses a method for recognizing the deflection polarity of rudder blades based on motion detection. At the same time, the positive and negative deflection segmentation areas are obtained; the dynamic images of each rudder are combined with the background frames of each rudder to obtain the moving images of each rudder by using the background elimination method, and the moving images of each rudder are denoised and enhanced to obtain the recognition image of each rudder , and then obtain the average gray value of each rudder piece recognition image in the positive and negative deflection segmented area, and identify the rudder according to the average gray value of the positive and negative deflection segmented area of the single frame recognition image and the multi-frame average gray value of the positive and negative deflection segmented area deflection polarity of the slice. The rudder blade deflection polarity recognition method provided by the invention has the advantages of simple hardware configuration, high safety performance, effective method, high recognition efficiency and good reliability.
Description
Technical field [0001] The invention belongs to an image processing method, and particularly relates to a method for identifying the deflection polarity of a rudder blade based on motion detection. Background technique [0002] With the advancement of science and technology, the fields of equipment such as ships have developed rapidly. In these equipment fields, due to its high production cost and high risk characteristics, it is necessary to fully test its interface, performance and various functions before use to ensure the safety of the equipment. During the test, it is often necessary to identify the deflection polarity of the rudder blades. Because the rudder blades are small in size, fast deflection speed and small deflection angle, manual identification is very difficult and dangerous. Therefore, it is urgently needed There is an automatic recognition system based on machine vision with human-machine isolation and high-efficiency characteristics to achieve the goal. [000...
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IPC IPC(8): G06K9/62G06K9/32G06K9/34G06K9/40G06K9/46
CPCG06V10/255G06V10/30G06V10/267G06V10/44G06F18/241
Inventor 孙志刚禹万泓王锦冬肖力王卓万东王宗庆
Owner HUAZHONG UNIV OF SCI & TECH