Liver segmentation method based on multi-scale feature fusion and attention
10.3969/j.issn.1005-202X.2024.06.012
- VernacularTitle:基于多尺度特征融合与注意力的肝脏分割方法
- Author:
Meizi RAN
1
;
Xiaojun HU
;
Xiaoyan JIANG
;
Yingfang FAN
;
Hang WANG
;
Hailing WANG
;
Yongbin GAO
Author Information
1. 上海工程技术大学电子电气工程学院,上海 201620
- Keywords:
liver segmentation;
attention mechanism;
multi-scale feature fusion;
deep supervision;
MFFA UNet
- From:
Chinese Journal of Medical Physics
2024;41(6):739-746
- CountryChina
- Language:Chinese
-
Abstract:
Due to the low contrast of CT images,irregular shape of the liver,and blurred boundaries with adjacent organs,the existing methods based on convolutional neural network underperform in liver segmentation tasks,especially for boundary recognition and small object detection.A novel liver segmentation method is proposed based on multi-scale feature fusion and attention,namely MFFA UNet.Multi-scale feature fusion is firstly employed to acquire abundant segmentation details,while spatial and channel attention mechanisms are utilized to capture global spatial and inter-channel relationships.Additionally,a deep supervision module fully leverages the output of intermediate hidden layers,enhancing the learning capability of the network,which in turn accelerates the network's convergence speed.Moreover,a hybrid loss function is adopted to address the issue of class imbalance,further boosting the model's segmentation efficacy.Experimental results demonstrate that the proposed MFFA UNet outperforms the prevailing segmentation networks on the public LITS dataset,producing results that are closer to the ground truth.
