A Coarse-to-fine Morphological Approach With Knowledge-based Rules and Self-adapting Correction for Lung Nodules Segmentation

• URL: http://arxiv.org/abs/2202.03433v1
• Date: Mon, 7 Feb 2022 12:10:37 GMT
• Title: A Coarse-to-fine Morphological Approach With Knowledge-based Rules and Self-adapting Correction for Lung Nodules Segmentation
• Authors: Xinliang Fu, Jiayin Zheng, Juanyun Mai, Yanbo Shao, Minghao Wang, Linyu Li, Zhaoqi Diao, Yulong Chen, Jianyu Xiao, Jian You, Airu Yin, Yang Yang, Xiangcheng Qiu, Jinsheng Tao, Bo Wang and Hua Ji
• Abstract summary: We present a coarse-to-fine methodology that greatly improves the thresholding method performance. Our algorithm achieves state-of-the-art performance on both the public LIDC-IDRI dataset and our private LC015 dataset. Unlike most available morphological methods that can only segment the isolated and well-circumscribed nodules accurately, our method is totally independent of the type or diameter.
• Score: 6.909963425628694
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The segmentation module which precisely outlines the nodules is a crucial step in a computer-aided diagnosis(CAD) system. The most challenging part of such a module is how to achieve high accuracy of the segmentation, especially for the juxtapleural, non-solid and small nodules. In this research, we present a coarse-to-fine methodology that greatly improves the thresholding method performance with a novel self-adapting correction algorithm and effectively removes noisy pixels with well-defined knowledge-based principles. Compared with recent strong morphological baselines, our algorithm, by combining dataset features, achieves state-of-the-art performance on both the public LIDC-IDRI dataset (DSC 0.699) and our private LC015 dataset (DSC 0.760) which closely approaches the SOTA deep learning-based models' performances. Furthermore, unlike most available morphological methods that can only segment the isolated and well-circumscribed nodules accurately, the precision of our method is totally independent of the nodule type or diameter, proving its applicability and generality.

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