一种基于图像分析的MBR曝气均匀性检测方法及系统

By constructing a Hessian matrix on the surface of the MBR pool and combining it with spot feature ratio, structural strength, and morphological background correction factors, the response threshold is adaptively corrected, solving the problem of wave gradient noise being misjudged as bubbles. This enables accurate assessment of the aeration uniformity of the MBR pool and improves the accuracy and robustness of the detection.

CN122023396BActive Publication Date: 2026-07-17SHAANXI WEILAN ENERGY SAVING & ENVIRONMENTAL TECH GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHAANXI WEILAN ENERGY SAVING & ENVIRONMENTAL TECH GRP CO LTD
Filing Date
2026-04-10
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing Hessian matrix detection algorithms tend to misjudge wave gradient noise as bubbles under strong aeration conditions in MBR tanks, leading to a false overestimation of bubble coverage and an inability to accurately identify uneven aeration in certain areas, thus affecting the operation optimization and fault early warning of the MBR system.

Method used

By constructing the Hessian matrix of the MBR pool surface, the spot feature ratio, structural strength, relative protrusion and area variation coefficient of the pixels are calculated. The response threshold is adaptively corrected by combining the morphological background correction factor to generate a bubble binarized mask image, and the aeration uniformity index is calculated to achieve accurate evaluation of aeration uniformity.

Benefits of technology

It improves the accuracy and anti-interference ability of bubble detection in MBR tanks, enabling timely and accurate identification of uneven local aeration, and enhancing the operation optimization and membrane fouling control capabilities of MBR systems.

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Abstract

本发明属于图像数据处理技术领域,具体涉及一种基于图像分析的MBR曝气均匀性检测方法及系统,其方法包括:构建MBR池表面的输入图像的Hessian矩阵,确定像素点的斑点特征比率以及结构强度;确定像素点的斑状程度;确定像素点的相对突起度;确定像素点的形态学背景校正因子;确定像素点自适应后的响应阈值;得到气泡二值化掩模图像,确定气泡二值化掩模图像中各个子区域的气泡覆盖率,获取曝气均匀性指数,判断MBR池中曝气是否均匀。本发明通过分析像素点的形态学特征,自适应响应阈值,克服传统Hessian矩阵检测算法在波浪干扰下的误判局限,实现气泡分割,提升MBR池曝气均匀性检测的准确性与鲁棒性。
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