期刊
COMPUTERIZED MEDICAL IMAGING AND GRAPHICS
卷 90, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compmedimag.2021.101923
关键词
Deep learning; Multiple scale; Whole slide image; Liver cancer segmentation; Fully convolutional neural network
资金
- China Scholarship Council
- Korea Health Technology R&D Project through the Korea Health Industry Development Institute (KHIDI) - Ministry of Health&Welfare, Republic of Korea [HI18C0316]
This paper introduces a multi-scale image processing method based on deep neural networks for liver cancer segmentation in Whole Slide Images. By constructing a seven-level gaussian pyramid representation, the method effectively captures texture information and produces superior results compared to state-of-the-art techniques.
This paper addresses the problem of liver cancer segmentation in Whole Slide Images (WSIs). We propose a multi-scale image processing method based on an automatic end-to-end deep neural network algorithm for the segmentation of cancerous areas. A seven-level gaussian pyramid representation of the histopathological image was built to provide the texture information at different scales. In this work, several neural architectures were compared using the original image level for the training procedure. The proposed method is based on U-Net applied to seven levels of various resolutions (pyramidal subsampling). The predictions in different levels are combined through a voting mechanism. The final segmentation result is generated at the original image level. Partial color normalization and the weighted overlapping method were applied in preprocessing and prediction separately. The results show the effectiveness of the proposed multi-scale approach which achieved better scores than state-of-the-art methods.
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