Extraction method of instrument scale marks
An extraction method and technology for meter scale, applied in the field of instrument scale line extraction, can solve the problems of large error, high labor cost, poor stability, etc., and achieve the effects of small error, high stability and efficiency, and low labor cost
Inactive Publication Date: 2019-01-18
安徽慧视金瞳科技有限公司
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[0005] The object of the present invention is to provide a method for extracting the scale line of an instrument. By obtaining the picture of the electronic version of the instrument to be tested, the position of the instrument dial is determined using the mouse, and the outer frame of the instrument dial and the inner frame of the scale line are selected by the mouse and intercepted. In the scale area, the position of the scale is extracted and sorted by the angle with the center of the dial, and the extraction of the scale line of the instrument is completed, which solves the problems of high labor cost, large error, poor stability and low efficiency in the process of manual marking of scale points
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[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0030] See figure 1 As shown, a method for extracting meter scale lines of the present invention includes the following steps:
[0031] S01: Obtain a picture to be tested: adjust the position, field of view, and focus of the camera to be directly in front of the instrument to be photographed, and upload the photographed picture to the computer to obtain an electronic version of the instrument picture to be tested;
[0032] S02: Select the po...
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The invention discloses an extraction method of instrument scale marks, and relates to the technical field of the instrument detection. The extraction method comprises the following steps: S01, obtaining a to-be-detected picture; S02, selecting a location of an instrument plate through mouse clicking; S03, selecting an outer frame of the instrument plate and an inner frame of scale marks through amouse, and intercepting a scale region; S04, extracting the scale location; and S05, computing angle information through the current scale and an instrument plate center so as to perform ranking. Thepicture of an electronic version of the to-be-detected instrument is acquired; the location of the instrument plate is determined by using the mouse, the outer frame of the instrument plate and the inner frame of the scale marks are selected and the scale region are intercepted through the mouse, thereby extracting the scale location and performing ranking through angle of the current scale and the instrument plate center so as to accomplish the extraction of the instrument scale marks; the manpower cost is low, the error is small, the stability and the efficiency are high.
Description
Technical field [0001] The invention belongs to the technical field of meter detection, and particularly relates to a method for extracting a meter calibration line. Background technique [0002] In the era of intelligent automation, many companies are also constantly introducing automation equipment, including combined instrument equipment. Combined instrument equipment is a device that automatically detects the meters of automobiles and motorcycles, including automatically acquiring pointers in the meters. The function of the meter pointing to the information. [0003] In the function of "Get Pointer Pointing Information", you first need to obtain the position and angle information of each scale on the scale line of the meter. If you mark this information by software, you will accurately extract the pointer pointing information in the meter. . [0004] At present, the marking of scale points on the scale line is mostly done by manual marking, and there are many defects such as hi...
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IPC IPC(8): G01D13/00
CPCG01D13/00
Inventor 汪俊锋林传文程炳权刘罡
Owner 安徽慧视金瞳科技有限公司