基于Floyd算法的活性污泥显微图像的多图像拼接  

Multi-Image Stitching of Activated Sludge Microscopic Image Based on the Floyd Algorithm

作　　者：赵立杰 张桂硕 邹世达 王国刚 范文玉[2] 张宇红[2] 黄明忠 Zhao lijie;Zhang Guishuo;Zou Shida;Wang Guogang;Fan Wenyu;Zhang Yuhong;Huang Mingzhong(College of Information Engineering,Shenyang University of Chemical Technology,Shenyang 110142,Liaoning,China;College of Environmental Engineering,Shenyang University of Chemical Technology,Shenyang 110142,Liaoning,China)

机构地区：[1]沈阳化工大学信息工程学院,辽宁沈阳110142 [2]沈阳化工大学环境工程学院,辽宁沈阳110142

出　　处：《激光与光电子学进展》2022年第22期114-121,共8页Laser & Optoelectronics Progress

基　　金：国家重点研发计划项目(2018YFB1700200);2020年辽宁省高等学校创新人才支持计划;2021年度高等学校基本科研项目重点项目(LJKZ0442)。

摘　　要：针对高倍镜下单张活性污泥显微图像视野范围小、表征污泥样品信息有限的问题,提出了一种基于Floyd算法的活性污泥显微图像的多图像拼接方法。首先通过尺度不变特征变换算法提取活性污泥显微图像点特征,使用余弦距离计算多图像特征匹配点的距离矩阵。然后采用Floyd算法确定多图像拼接基准图并优化拼接路径。最后通过仿射变换将待拼接图像根据拼接路径及基准图进行拼接。实验结果验证了所提方法的有效性,该方法能够解决显微图像视野受限、多图乱序情况下显微图像的拼接问题。Addressing the problem of a single activated sludge microscopic image under high magnification of a small field of view and limited information for characterizing sludge samples,a multi-image stitching approach of activated sludge microscopic images based on the Floyd algorithm is proposed.First,the scale-invariant feature transform algorithm is used to extract feature points of activated sludge microscopic images,and the distance matrix of multi-image feature matching points is computed using cosine distance.Next,the Floyd algorithm is used to determine the multi-image stitching reference map and the optimized stitching path.Finally,the images are stitched based on the stitching path and the reference map by an affine transformation.The experimental findings show the efficiency of the approach proposed in this study.In the case of a limited field of microscopic and multiple images in disorder,the approach can solve the problem of stitching images.

关 键 词：图像处理 FLOYD算法 活性污泥显微图像 多图像拼接 分组拼接 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]