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Image identification method of indicating values of LCD (liquid crystal display) digital display instrument

An image recognition and digital display technology, applied in image analysis, image data processing, character and pattern recognition, etc., can solve the problems of high labor intensity and easy to cause human error, etc.

Active Publication Date: 2012-01-04
ZHEJIANG UNIV
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  • Abstract
  • Description
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Problems solved by technology

[0003] In order to overcome the shortcomings of the existing LCD digital display that reading the displayed value can only be done manually, the labor intensity is high, and it is easy to cause human errors. The Image Recognition Method of Displayed Value of LCD Digital Display

Method used

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  • Image identification method of indicating values of LCD (liquid crystal display) digital display instrument
  • Image identification method of indicating values of LCD (liquid crystal display) digital display instrument
  • Image identification method of indicating values of LCD (liquid crystal display) digital display instrument

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Embodiment Construction

[0062] With reference to accompanying drawing, further illustrate the present invention:

[0063] The image recognition method for the displayed value of the LCD digital display comprises the following steps:

[0064] (a), read the video stream of the camera, acquire frames at preset time intervals, and obtain images;

[0065] (b), determine the area where the number is located, the area only contains numbers, and the image of the area is intercepted as the image for subsequent processing;

[0066] (c), the image is preprocessed, the image is converted into a binarized image, and each number in the binarized image is separated into a separate pure digital image, and the pure digital image is stored in turn, for all pure digital images The numbers in the stroke correction process;

[0067] (d) Identify the digital meaning and decimal point represented by the pure digital image in turn, and calculate the displayed value of the LCD digital display.

[0068] In step (b), the ar...

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Abstract

The invention provides an image identification method of indicating values of an LCD (liquid crystal display) digital display instrument, comprising the following steps of: reading video streams of a camera, and acquiring frames at preset time intervals to obtain an image; determining a zone in which numbers are located, wherein the zone comprises the numbers only, and capturing the image of the zone to be taken as a subsequently-processed image; preprocessing the image, converting the image into a binary image, separating each number in the binary image to obtain independent pure-number images, and carrying out stroke correction on the numbers in all the pure-number images according to the stored pure-number images; and identifying number meanings represented by the pure-number images and decimal points in sequence, and calculating the indicating values of the LCD digital display instrument. The method provided by the invention has the advantages that the numbers in the digital display instrument can be identified by a computer, labor intensity is low and no personal error is caused.

Description

technical field [0001] The invention relates to an image recognition method for display value of an LCD digital display instrument. technical background [0002] LCD digital displays are widely used in scientific research, production and daily life, but because many LCD digital displays have only one digital display window and no other signal output, reading the displayed value of LCD digital displays is usually only It can be done manually, which causes a large workload for the operator and is prone to human errors. Contents of the invention [0003] In order to overcome the shortcomings of the existing LCD digital display that reading the displayed value can only be done manually, the labor intensity is high, and it is easy to cause human errors. Image recognition method of LCD digital display value. [0004] The image recognition method for the displayed value of the LCD digital display comprises the following steps: [0005] (a), read the video stream of the camera,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06T7/00G06K9/20
Inventor 何闻荣左超李根贾叔仕
Owner ZHEJIANG UNIV
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