基于EM路由算法的医学图像分割UCaps网络

doi:10.19678/j.issn.1000-3428.0060000

摘要/Abstract

摘要： 传统的医学图像分割网络存在分割精度低、图像信息易丢失、分割轮廓不清晰等问题。为提高医学图像分割准确率，提出一种结合胶囊网络与U-Net的多标签图像分割网络UCaps。以U-Net网络为架构，基于胶囊网络原理设计适用于胶囊网络的上采样算法，通过结合高斯混合模型作为聚类算法的EM路由算法聚合底层特征对高层特征的推导过程，使高层特征包含底层特征信息，同时底层特征间的位置、姿态等信息具有统一性。实验结果表明，相比U-Net、SegCaps、MaVec-Caps网络，UCaps网络的平均分割准确率为93.21%，其中左肺分割准确率达到98.24%，具有较高的图像分割准确率和较快的收敛速度。

关键词: 医学影像分割, 胶囊网络, 高斯混合模型, U-Net网络, EM路由算法

Abstract: The existing medical image segmentation networks are limited in segmentation accuracy, and often lose image information as well as produce vague segmentation boundary.In this paper, we propose a multi-label image segmentation network named UCaps, which combines capsule networks with U-Net.Taking U-Net as the basic structure, we designs an up-sampling capsule algorithm based on the principle of capsule network.Combining EM-Routing algorithm with Gaussian Mixture Model(GMM) is used to cluster the probability inferences made by child capsules for parent capsule, so the parent capsule can keep both the feature information of child capsules and the consistency of location, posture and other information between child capsules.The experimental results show that compared with U-Net, SegCaps and MaVec-Caps network, the average segmentation accuracy of UCaps network is 93.21%, and the accuracy of left lung segmentation reaches 98.24%.The proposed network significantly improves the segmentation accuracy and convergence speed.

Key words: medical image segmentation, capsule network, Gaussian Mixture Model(GMM), U-Net network, EM-Routing algorithm

中图分类号:

TP391

王文欣, 贺煜航, 陈刚. 基于EM路由算法的医学图像分割UCaps网络[J]. 计算机工程, 2022, 48(2): 268-274.

WANG Wenxin, HE Yuhang, CHEN Gang. UCaps Network Based on EM-Routing Algorithm for Medical Image Segmentation[J]. Computer Engineering, 2022, 48(2): 268-274.

https://www.ecice06.com/CN/Y2022/V48/I2/268

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参考文献

[1] 王秋萍, 张志祥, 朱旭芳.图像分割方法综述[J].信息记录材料, 2019, 20(7):12-14. WANG Q P, ZHANG Z X, ZHU X F.Comprehensive summary of image segmentation[J].Information Recording Materials, 2019, 20(7):12-14.(in Chinese)
[2] 林瑶, 田捷.医学图像分割方法综述[J].模式识别与人工智能, 2002, 15(2):192-204. LIN Y, TIAN J.Survey of medical image segmentation method[J].Pattern Recognition and Artificial Intelligence, 2002, 15(2):192-204.(in Chinese)
[3] ZHOU K.Medical image recognition, segmentation and parsing[M].Cambridge, USA:Academic Press, 2015.
[4] 王囡, 侯志强, 赵梦琦, 等.结合边缘检测的语义分割算法[J].计算机工程, 2021, 47(7):257-265. WAGN N, HOU Z Q, ZHAO M Q, et al.Semantic segmentation algorithm combined with edge detection[J].Computer Engineering, 2021, 47(7):257-265.(in Chinese)
[5] RONNEBERGER O, FISCHER P, BROX T.U-Net:convolutional networks for biomedical image segmentation[C]//Proceedings of International Conference on Medical Image Computing and Computer-Assisted Intervention.Berlin, Germany:Springer, 2015:234-241.
[6] KHENED M, ALEX V, KRISHNAMURTHI G.Densely connected fully convolutional network for short-axis cardiac cine MR image segmentation and heart diagnosis using random forest[C]//Proceedings of the 8th International Workshop on Statistical Atlases and Computational Models of the Heart.Berlin, Germany:Springer, 2018:1-10.
[7] HUANG G, LIU Z, LAURENS V D M, et al.Densely connected convolutional networks[C]//Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition.Washington D.C., USA:IEEE Press, 2017:4700-4708.
[8] KRIZHEVSKY A, SUTSKEVER I, HINTON G E.Imagenet classification with deep convolutional neural networks[J].Communications of the ACM, 2017, 60(6):84-90.
[9] SABOUR S, FROSST N, HINTON G E.Dynamic routing between capsules[C]//Proceedings of the 31st International Conference on Neural Information Processing Systems.New York, USA:ACM Press, 2017:3856-3866.
[10] ZHOU Z, SIDDIQUEE M M R, TAJBAKHSH N, et al. UNet++:a nested U-Net architecture for medical image segmentation[C]//Proceedings of International Workshop on Deep Learning in Medical Image Analysis.Berlin, Germany:Springer, 2018:3-11.
[11] HUANG H, LIN L, TONG R, et al.UNet 3+:a full-scale connected unet for medical image segmentation[C]//Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing.Washington D.C., USA:IEEE Press, 2020:1055-1059.
[12] SABOUR S, FROSST N, HINTON G.Matrix capsules with EM routing[C]//Proceedings of the 6th International Conference on Learning Representations.Vancouver, BC, Canada:[s.n.], 2018:1-15.
[13] GIRI D, ACHARYA U R, MARTIS R J, et al.Automated diagnosis of coronary artery disease affected patients using LDA, PCA, ICA and discrete wavelet transform[J].Knowledge-Based Systems, 2013, 37:274-282.
[14] MOBINY A, NGUYEN H V.Fast capsnet for lung cancer screening[EB/OL].[2020-10-14].https://arxiv.org/pdf/1806.07416.pdf.
[15] HE Y, QIN W, WU Y, et al.Automatic left ventricle segmentation from cardiac magnetic resonance images using a capsule network[J].Journal of X-Ray Science and Technology, 2020, 28(3):1-13.
[16] LALONDE R, BAGCI U.Capsules for object segmentation[EB/OL].[2020-10-12].https://arxiv.org/abs/1804.04241v1.
[17] JORDAN M, JACOBS R.Hierarchical mixtures of experts and the EM algorithm[J].Neural Computation, 1994, 6(2):181-214.
[18] PATRICK M K, ADEKOYA A F, MIGHTY A A, et al. Capsule networks-a survey[EB/OL].[2020-10-15]. https://www.sciencedirect.com/science/article/pii/S1319157819309322.
[19] SHIRAISHI J, KATSURAGAWA S, IKEZOE J, et al.Development of a digital image database for chest radiographs with and without a lung nodule:receiver operating characteristic analysis of radiologists' detection of pulmonary nodules[J].American Journal of Roentgenology, 2000, 174(1):71-74.
[20] GINNEKEN B V, STEGMANN M B, LOOG M.Segmentation of anatomical structures in chest radiographs using supervised methods:a comparative study on a public database[J].Medical Image Analysis, 2006, 10(1):19-40.
[21] BONHEUR S, ŠTERN D, PAYER C, et al.Matwo-capsnet:a multi-label semantic segmentation capsules network[C]//Proceedings of International Conference on Medical Image Computing and Computer-Assisted Intervention.Berlin, Germany:Springer, 2019:664-672.

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