Shooting water meter character wheel coordinate acquisition method and device

An acquisition method and an acquisition device technology, which are applied in the field of image processing applications, can solve the problems of affecting the progress of the project, the harsh environment of the sensor, and the increase in the cost of the sensor, so as to achieve the effect of automatic calibration

Active Publication Date: 2017-11-17
HANGZHOU SHANKE INTELLIGENT TECH CO LTD
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Problems solved by technology

This greatly increases the workload of on-site staff, seriously affects the progress of the project, and increases the cost of sensors
In addition, the water meter sensors currently in use have a service life, and the environment in which the sensors are used is relatively harsh. Therefore, as time goes by, the moun

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  • Shooting water meter character wheel coordinate acquisition method and device
  • Shooting water meter character wheel coordinate acquisition method and device
  • Shooting water meter character wheel coordinate acquisition method and device

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[0039] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described The 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.

[0040] Please refer to figure 1 , The method for acquiring the coordinates of the character wheel of a photographic water meter provided by an embodiment of the present invention includes the following steps:

[0041] S10: Determine the ordinate value of the character wheel in the captured image.

[0042] Take the image o...

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Abstract

The invention discloses a shooting water meter character wheel coordinate acquisition method and device. The method comprises steps that in a shot image, a vertical coordinate value of a character wheel is determined; according to the vertical coordinate value of the character wheel, picture interception of the image is sequentially carried out at preset pixel length along a transverse axis, when a figure identified from the interception image is a complete display figure, a coordinate value of the picture is acquired and is taken as a coordinate value of the corresponding character wheel; the identified character wheel coordinate is taken as reference, a picture of each character wheel is intercepted according to the relative position of the character wheels, and the coordinate value of each character wheel is calculated. The method is advantaged in that the character wheel coordinates are acquired according to the shot pictures, automatic calibration of the character wheel coordinates is realized, and a problem that a worker is required to carry out field debugging to determine the character wheel coordinates is solved.

Description

Technical field [0001] The invention relates to the application field of image processing, in particular to a method and device for acquiring the coordinates of the character wheel of a camera water meter. Background technique [0002] In the prior art, the camera direct reading water meter is used to capture the water meter image and recognize the number from the captured image to realize the function of remotely reading the water meter value. However, this method not only has higher requirements for image clarity, but also has strict requirements for the position coordinates of the character wheel in the captured image, requiring the position of the character wheel to be at the center of the image and positioning the coordinate value of the character wheel position. In actual use, the character wheel coordinates are written before leaving the factory, but there will inevitably be a deviation between the center position of the water meter and the camera module during the install...

Claims

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Application Information

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IPC IPC(8): G01B11/00G01F15/06G06K9/32
CPCG01B11/002G01F15/061G06V10/25
Inventor 蔡方益吴文昌庄瑞板
Owner HANGZHOU SHANKE INTELLIGENT TECH CO LTD
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