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Multi-modal brain tumor image segmentation based on SDAE
DOI:10.1002/ima.22254.png)
摘要
En 中文
Accurate tumor segmentation has the ability to provide doctors with a basis for surgical planning. Moreover, brain tumor segmentation needs to extract different tumor tissues (Edema, tumor, tumor enhancement, and necrosis) from normal tissues which is a big challenge because tumor structures vary considerably across patients in terms of size, extension, and localization. In this article, we evaluate a fully automated method for segmenting brain tumor images from multi-modal magnetic resonance imaging volumes based on stacked de-noising auto-encoders (SDAEs). Specially, we adopted multi-modality information from T1, T1c, T2, and Flair images, respectively. We extracted gray level patches from different modalities as the input of the SDAE. After trained by the SDAE, the raw network parameters will be obtained, which are adopted as a parameter of the feed forward neural network for classification. A simple post-processing is implemented by threshold segmentation method to generate a mask to get the final segmentation result. By evaluating the proposed method on the BRATS 2015, it can be proven that our method obtains the better performance than other state-of-the-art counterpart methods. And a preliminary dice score of 0.86 for whole tumor segmentation has been achieved.
Keyword:
brain tumor segmentation
BRATS 2015
stacked de-noising auto-encoder
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2.5
论文数:
2.2K
被引数:
2.3K
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