Reading recognition method, device, equipment and storage medium for pointer dial
A pointer and dial technology, which is applied in character and pattern recognition, instruments, calculations, etc., can solve the problems that the accuracy and robustness of pointer dial readings need to be improved, and achieve the effect of improving accuracy and robustness
Active Publication Date: 2022-08-05
SHENZHEN HIVT TECH
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[0004] However, the accuracy and robustness of the analog dial readings identified in this way could be improved
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[0032] Analog dials are common display devices and are widely used in various industrial electronic devices. With the rise of the industrial automation industry, it is necessary to read and identify the readings of the pointer dial in real time. In the prior art, there are some instruments that retain digital signal interfaces at the beginning of instrument design, which can directly transmit numerical signals (commonly used in instruments involving electronic equipment such as ammeters, voltmeters, and tachometers); such instruments can also be used. Dial readings are identified by the magnetic signal produced by the Faraday effect. There are also some instruments, such as old equipment or equipment under extreme working conditions (nuclear facilities, high voltage, high voltage containers and other physical equipment), which cannot provide such digital interfaces and are not suitable for installing electronic sensing devices. The computer vision technology shoots the pointe...
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The present disclosure provides a reading recognition method, device, equipment and storage medium for a pointer dial, involving digital image processing and meter reading recognition technology, including: acquiring a picture to be recognized of the pointer dial, and determining the type of the pointer dial information, the first mark position; according to the type information, determine the preset dial template corresponding to the pointer dial; the preset dial template includes the front view of the first dial, and the front view of the first dial has the second mark position, and the corresponding scale positions Numerical value; rotate the dial image to the front view of the second dial according to the first mark position and the second mark position; determine the reading of the pointer dial according to the numerical value corresponding to each scale position and the front view of the second dial. In this solution, a preset dial template can be used to determine the front view of the dial image; according to the front view and the preset dial template, the reading of the pointer dial can be determined. Improves the accuracy and robustness of the recognized analog dial readings.
Description
technical field [0001] The present disclosure relates to digital image processing and meter reading identification technology, and in particular, to a reading identification method, device, equipment and storage medium for a pointer dial. Background technique [0002] Analog dials are common display devices and are widely used in various industrial electronic devices. With the rise of the industrial automation industry, it is necessary to read and identify the readings of the pointer dial in real time. [0003] In the prior art, when some old equipment is retrofitted, or in scenarios where it is not suitable to install electronic sensing devices (such as high-voltage electricity, high container pressure), computer vision technology can be used to photograph the pointer dial, and the image data of the dial can be obtained. Video algorithms (such as Hough transform) process the image data to obtain scale and pointer information in the image, and then use the scale to determin...
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IPC IPC(8): G06V10/22G06V20/62
Inventor 周波段炼苗瑞邹小刚莫少锋
Owner SHENZHEN HIVT TECH