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arXiv 1912.12570cs.CV

Infant brain MRI segmentation with dilated convolution pyramid downsampling and self-attention

Northeastern University(东北大学);Shengjing Hospital, China Medical University(中国医科大学附属盛京医院)

Zhihao Lei, Lin Qi, Ying Wei, Yunlong Zhou

英文摘要:

In this paper, we propose a dual aggregation network to adaptively aggregate different information in infant brain MRI segmentation. More precisely, we added two modules based on 3D-UNet to better model information at different levels and locations. The dilated convolution pyramid downsampling module is mainly to solve the problem of loss of spatial information on the downsampling process, and it can effectively save details while reducing the resolution. The self-attention module can integrate the remote dependence on the feature maps in two dimensions of spatial and channel, effectively improving the representation ability and discriminating ability of the model. Our results are compared to the winners of iseg2017's first evaluation, the DICE ratio of WM and GM increased by 0.7%, and CSF is comparable.In the latest evaluation of the iseg-2019 cross-dataset challenge,we achieve the first place in the DICE of WM and GM, and the DICE of CSF is second.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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