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Automatic meter-reading image recognition method

An automatic recognition and image technology, applied in the field of image recognition, can solve the problems of digital recognition errors and low accuracy, and achieve the effect of simple and convenient use, improved accuracy, and guaranteed accuracy.

Active Publication Date: 2015-07-01
SHANXI KEDA AUTOMATION CONTROL
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Problems solved by technology

[0004] In order to solve the technical problems of low accuracy and prone to digital recognition errors existing in the prior art, the present invention provides an automatic meter reading image recognition method that is simple and convenient to use, can accurately recognize the dial image, and has high accuracy

Method used

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Embodiment Construction

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] Such as figure 1 Shown, the meter reading image automatic recognition method, according to the following steps

[0027] a. The image acquisition device acquires the frontal image of the dial;

[0028] b. Roughly locate the display image, and use the Gaussian image pyramid algorithm, the Hough circle detection algorithm and the HSV color space algorithm to obtain a rough display area image and pointer area image;

[0029] Among them, in order to ensure that the number part is included in the rectangular frame by the rough positioning system, the selected un...

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Abstract

The invention relates to an image recognition method, in particular to an automatic meter-reading image recognition method, and aims at solving the technical problem of low accuracy and proneness to digital recognition error. The automatic meter-reading image recognition method is simple and convenient to use, capable of accurately recognizing dial plate images and high in accuracy. The technical scheme includes the following steps: a, collecting images of a dial plate by an image collecting device; b, roughly positioning a digit indicating image; c, accurately positioning a digit indicating area image; d, accurately positioning a pointer area image; e, preprocessing the images; f, performing digit division; g, performing digit recognition; h, recognizing angle of a pointer. The automatic meter-reading image recognition method is widely used for recognition of digits of the dial plate in a remote meter reading system.

Description

technical field [0001] The invention relates to an image recognition method, in particular to an automatic meter reading image recognition method. Background technique [0002] With the rapid development of smart meters, smart electronic meters with remote automatic meter reading functions are gradually entering thousands of households. However, due to the limitations of signal collection, digital recognition, price, power consumption, etc. With the function of remote automatic meter reading, the data is still entered by manual reading, which is heavy workload, cumbersome and error-prone. [0003] At present, the smart electronic meters with remote automatic meter reading function on the market have poor accuracy in subsequent information processing and identification after reading the dial information, and are prone to problems such as digital recognition errors, which restrict remote automatic meter reading. Promotion and application of smart electronic meters with meter ...

Claims

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Application Information

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IPC IPC(8): G06K9/62G06K9/40
Inventor 高波靳鹏宇杜文卓王永鑫邢建军
Owner SHANXI KEDA AUTOMATION CONTROL
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