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arXiv 1807.07784cs.CV
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乳腺DCE-MRI弱监督病灶检测的模型无关显著性

Model Agnostic Saliency for Weakly Supervised Lesion Detection from Breast DCE-MRI

The University of Adelaide(阿德莱德大学);Australian Institute for Machine Learning(澳大利亚机器学习研究所);Delft University of Technology(代尔夫特理工大学);Queensland University of Technology(昆士兰科技大学)

Gabriel Maicas, Gerard Snaauw, Andrew P. Bradley, Ian Reid, Gustavo Carneiro

摘要:

关于如何解释深度学习模型(DLM)提供的决策存在激烈的争论,其中主要方法依赖于显着区域的可视化来解释DLM分类过程。然而,对于从医学图像中检测病变的问题,这些方法通常不能满足三个条件:1)对于具有病变的图像,所有显著区域都应该表示病变,2)对于不包含病变的图像,不应该产生显著区域,以及3)病变通常较小,具有相对平滑的边界。我们提出了一个新的模型不可知范式来解释DLM分类决策支持的显着性,结合上述条件的新定义。我们的模型不可知的1类显着性检测器(MASD)进行了测试,从DCE-MRI弱监督乳腺病变检测,达到最先进的检测精度相比,目前的可视化方法。

英文摘要:

There is a heated debate on how to interpret the decisions provided by deep learning models (DLM), where the main approaches rely on the visualization of salient regions to interpret the DLM classification process. However, these approaches generally fail to satisfy three conditions for the problem of lesion detection from medical images: 1) for images with lesions, all salient regions should represent lesions, 2) for images containing no lesions, no salient region should be produced,and 3) lesions are generally small with relatively smooth borders. We propose a new model-agnostic paradigm to interpret DLM classification decisions supported by a novel definition of saliency that incorporates the conditions above. Our model-agnostic 1-class saliency detector (MASD) is tested on weakly supervised breast lesion detection from DCE-MRI, achieving state-of-the-art detection accuracy when compared to current visualization methods.

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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