论文标题
几乎没有射击的医疗图像分割,并引起周期的注意
Few-shot Medical Image Segmentation with Cycle-resemblance Attention
论文作者
论文摘要
最近,由于医学成像应用的需求不断增长以及注释医学图像的专业要求,在医学图像语义细分领域中,很少有sotot学习引起了人们的关注。为了用有限的标记医学图像进行分割,大多数现有研究都使用原始网络(PN)并获得了令人信服的成功。但是,这些方法忽略了从建议的表示网络中提取的查询图像特征,但未能保留查询和支持图像之间的空间连接。在本文中,我们提出了一个新颖的自我监督的少数射击医学图像分割网络,并引入了一种新颖的循环引人入胜(CRA)模块,以充分利用查询和支持医学图像之间的像素的关系。值得注意的是,我们首先将多个注意力块排列,以完善更多丰富的关系信息。然后,我们通过将CRA模块与经典的原型网络集成在一起来呈现Crapnet,在该网络中,查询和支持特征之间的像素关系可以很好地重新捕获以进行分割。在两个不同的医学图像数据集上进行了广泛的实验,例如腹部MRI和腹部CT,证明了我们模型比现有最新方法的优越性。
Recently, due to the increasing requirements of medical imaging applications and the professional requirements of annotating medical images, few-shot learning has gained increasing attention in the medical image semantic segmentation field. To perform segmentation with limited number of labeled medical images, most existing studies use Proto-typical Networks (PN) and have obtained compelling success. However, these approaches overlook the query image features extracted from the proposed representation network, failing to preserving the spatial connection between query and support images. In this paper, we propose a novel self-supervised few-shot medical image segmentation network and introduce a novel Cycle-Resemblance Attention (CRA) module to fully leverage the pixel-wise relation between query and support medical images. Notably, we first line up multiple attention blocks to refine more abundant relation information. Then, we present CRAPNet by integrating the CRA module with a classic prototype network, where pixel-wise relations between query and support features are well recaptured for segmentation. Extensive experiments on two different medical image datasets, e.g., abdomen MRI and abdomen CT, demonstrate the superiority of our model over existing state-of-the-art methods.