Accurate Lung Nodules Segmentation with Detailed Representation Transfer and Soft Mask Supervision

• URL: http://arxiv.org/abs/2007.14556v3
• Date: Thu, 14 Apr 2022 07:29:13 GMT
• Title: Accurate Lung Nodules Segmentation with Detailed Representation Transfer and Soft Mask Supervision
• Authors: Changwei Wang, Rongtao Xu, Shibiao Xu, Weiliang Meng, Jun Xiao, Xiaopeng Zhang
• Abstract summary: Smallness and variety of lung nodules make accurate lung nodule segmentation difficult. We introduce a novel segmentation mask named Soft Mask which has richer and more accurate edge details description. A novel Network with detailed representation transfer and Soft Mask supervision (DSNet) is proposed to process the input low-resolution images of lung nodules into high-quality segmentation results.
• Score: 19.64536342490214
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Accurate lung lesion segmentation from Computed Tomography (CT) images is crucial to the analysis and diagnosis of lung diseases such as COVID-19 and lung cancer. However, the smallness and variety of lung nodules and the lack of high-quality labeling make the accurate lung nodule segmentation difficult. To address these issues, we first introduce a novel segmentation mask named Soft Mask which has richer and more accurate edge details description and better visualization and develop a universal automatic Soft Mask annotation pipeline to deal with different datasets correspondingly. Then, a novel Network with detailed representation transfer and Soft Mask supervision (DSNet) is proposed to process the input low-resolution images of lung nodules into high-quality segmentation results. Our DSNet contains a special Detail Representation Transfer Module (DRTM) for reconstructing the detailed representation to alleviate the small size of lung nodules images, and an adversarial training framework with Soft Mask for further improving the accuracy of segmentation. Extensive experiments validate that our DSNet outperforms other state-of-the-art methods for accurate lung nodule segmentation and has strong generalization ability in other accurate medical segmentation tasks with competitive results. Besides, we provide a new challenging lung nodules segmentation dataset for further studies.

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