To address the difficulty in accurately detecting pulmonary nodules of different properties,a full-scale channel feature aggregation encoding and decoding network(FCFA-Net)is employed to assist experienced physicians in diagnosis.The network which consists of SMC,full-scale feature aggregator,autocorrelation feature enhancer,channel feature hierarchy extraction decoder and binomial constraint loss function can fully extract shallow and deep features from CT images for realizing the segmentation of pulmonary nodules of different sizes and shapes.Compared with UNet,UNet++and TransUnet,FCFA-Net increases the accuracy by 9.96%,7.84%and 3.75%,recall rate by 5.50%,2.96%and 1.37%,mean intersection over union by 11.35%,7.16%and 4.18%,F1 score by 8.07%,5.87%and 3.10%,respectively.Additionally,ablation experiment results demonstrate that each structure is effective and can achieve the best result within the acceptable parameter range.
关键词
肺结节分割/全尺度跳跃连接/双项限制损失函数/空洞卷积
Key words
lung nodule segmentation/full-scale skip connection/binomial constraint loss function/dilated convolution
维普
万方数据