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Watershed-based slag sheet color image analysis device and method

A color image and analysis method technology, which is applied in image analysis, image enhancement, image data processing, etc., can solve the problems of on-site sampling difficulty, unsustainable sampling, and narrow space above, so as to eliminate personal safety risks and improve tunnel quality. Construction efficiency, save time consumption effect

Inactive Publication Date: 2018-10-12
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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Problems solved by technology

This method is relatively slow in efficiency and requires a large number of manpower. It cannot play the role of on-site guidance for TBM excavation. In addition, due to the fast moving speed of the bel

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  • Watershed-based slag sheet color image analysis device and method
  • Watershed-based slag sheet color image analysis device and method
  • Watershed-based slag sheet color image analysis device and method

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Embodiment Construction

[0040] 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 embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] A color image analysis method of slag flakes based on watershed, such as figure 1 As shown, the steps are as follows:

[0042] Step 1. Obtain real-time images of the slag flakes on the moving conveyor belt.

[0043] The acquisition of the real-time image is obtained through the acquisition device, which includes: a light source, a bracket, a camera and a speed measuring device; the speed measuring device is used to detect the real-time speed of the mov...

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Abstract

The invention discloses a device and a method for analyzing the color image of a slag sheet based on a watershed. The method comprises the following steps: step 1, periodically photographing a movingslag discharge belt to obtain the color image of the slag sheet; step 2, preprocessing the image, calculating a multi-scale morphological gradient of the color image of the slag sheet image, and selecting an appropriate gradient; step 3, obtaining a minimum mark image, performing FFT transformation on the gradient image, filtering the response, extracting low-frequency components of the gradient image, performing IFFT calculation on part of the gradient, and performing adaptive minimum value extraction after picture superposition; step 4, performing watershed processing on the calibrated image; step 5, extracting parameters of slag sheet such as fragmentation, area and quantity from the segmented image, and obtaining corresponding surrounding rock types and performance parameters. The invention achieves accurate image segmentation, parameter extraction and state judgment of the slag sheet color image to the maximum extent, and provides guarantee for efficient construction of the TBM.

Description

technical field [0001] The invention relates to the field of TBM tunnel construction, in particular to a watershed-based slag chip color image analysis device and method. Background technique [0002] At present, with the rapid development of tunnel excavation technology in our country, TBM (full-face tunnel boring machine) has been used more and more widely, and has become a main construction method. There is no unified regulation on the state prediction of TBM, and the improvement of tunneling efficiency mainly depends on the human experience of the main control driver. The method of processing, extracting slag fragments such as lumpiness, quantity, area and other parameters for online analysis can realize construction early warning, TBM performance optimization, etc. [0003] At present, the common analysis method of TBM slag flakes is to take samples on site, sieve them, load them in the laboratory, and measure their particle size. This method is relatively slow in eff...

Claims

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Application Information

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IPC IPC(8): G06T7/00
CPCG06T7/0004G06T2207/10024G06T2207/20024G06T2207/20056G06T2207/30132G06T2207/30168
Inventor 刘恒超王会朴秦志远焦妮徐剑安张扬扬朱永超荆留杰于太彰徐受天
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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