A water gauge reading detection method based on video

A water gauge and reading technology, which is applied in the direction of instruments, character and pattern recognition, computer components, etc., can solve the problems of unrealistic water level reading, large labor cost and time cost, and reading error, so as to save labor cost and time cost, improve accuracy and real-time performance, and realize the effect of automation

Inactive Publication Date: 2019-02-22
天津天地伟业投资管理有限公司
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Problems solved by technology

[0002] In the field of water conservancy monitoring, observing the water gauge and determining the water level reading by human eyes often consumes a lot of

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  • A water gauge reading detection method based on video
  • A water gauge reading detection method based on video
  • A water gauge reading detection method based on video

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Embodiment Construction

[0033] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0034] The present invention proposes a video-based water gauge reading detection method, the overall flow chart is as follows figure 1 shown.

[0035] 1. Preprocess the video image to remove image noise.

[0036] In the present invention, the Gaussian filter is used to preprocess the image, which can effectively suppress noise and smooth the image.

[0037] 2. Use the training model to detect the position of the water gauge in the image and determine the area of ​​the water gauge.

[0038] In the present invention, a cascaded classifier based on LBP features is used to detect water scales in the entire image. The calculation of the LBP feature takes the center pixel of the neighborhood as the threshold, and the gray value of the adjacent 8 pixels is compared with the pixel value of the neighborhood cente...

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Abstract

The invention provides a water gauge reading detection method based on video. The method comprises the steps of firstly obtaining a video image, preprocessing the image, after removing the image noise, determining the position of the water gauge by the model detection method, and segmenting and identifying the number on the water gauge in the water gauge area, then detecting the water level position and calculating the water gauge reading by synthesizing the digital segmentation recognition result and the water level detection result. The method is not easy to be affected by the camera angle and the visual field change, and the correct result is detected. The invention can quickly locate the position of the water gauge by using the model detection technology. The digital position of the water gauge can be effectively detected and the digital reading can be accurately recognized by using the segmentation and recognition technology. By using the horizontal projection technique of gradient binary image, the water level can be located accurately, and the accuracy of water gauge reading can be improved effectively.

Description

technical field [0001] The invention belongs to the technical field of video detection, and in particular relates to a video-based water gauge reading detection method and device. Background technique [0002] In the field of water conservancy monitoring, observing the water gauge and determining the water level reading with human eyes often consumes a lot of labor and time costs, and there will be large errors in the readings, so that real-time and accurate monitoring of the water level reading cannot be realized. Contents of the invention [0003] The purpose of the present invention is to provide a video-based water gauge reading detection method for all-weather monitoring of the water gauge reading, and to determine whether the water level reading is within the preset water level range, so as to achieve the effect of water level monitoring. [0004] In order to achieve the above object, technical solution of the present invention is achieved in that way: [0005] A me...

Claims

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Application Information

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IPC IPC(8): G06K9/34G06K9/40G06K9/62
CPCG06V10/26G06V10/30G06F18/2411
Inventor 薛超付邦鹏刘珊孙雅彬
Owner 天津天地伟业投资管理有限公司
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