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arXiv 2407.15728eess.IVcs.CV

SAM2CLIP2SAM:用于Covid-19检测的3D CT扫描分割视觉语言模型

SAM2CLIP2SAM: Vision Language Model for Segmentation of 3D CT Scans for Covid-19 Detection

School of Electronic Engineering & Computer Science, Queen Mary University of London(伦敦玛丽女王大学电子工程与计算机科学学院);National Technical University Athens(雅典国立技术大学)

Dimitrios Kollias, Anastasios Arsenos, James Wingate, Stefanos Kollias

AI总结:

本文提出SAM2CLIP2SAM框架,结合SAM和CLIP的优势实现3D胸部CT扫描的准确肺部分割,并将分割结果输入RACNet进行Covid-19检测,实验证明该方法提升了分类性能。

摘要:

本文提出了一种新的有效图像分割方法,可集成到任何模型和方法中;我们选择的范式是用于Covid-19检测的医学图像(3D胸部CT扫描)分类。我们的方法结合了视觉语言模型对CT扫描进行分割,然后将其输入到名为RACNet的深度神经架构中进行Covid-19检测。特别地,我们引入了一个名为SAM2CLIP2SAM的新框架进行分割,该框架利用Segment Anything Model(SAM)和Contrastive Language-Image Pre-Training(CLIP)的优势,准确分割CT扫描中的左右肺,随后将这些分割输出输入RACNet以分类COVID-19和非COVID-19病例。首先,SAM为CT扫描的每个切片生成多个基于部位的分割掩码;然后CLIP仅选择与感兴趣区域(ROIs),即左右肺相关的掩码;最后将ROIs作为提示提供给SAM,生成肺部的最终分割掩码。我们在两个Covid-19标注数据库上进行了实验,结果表明使用我们的方法进行CT扫描分割获得了性能提升。

英文摘要:

This paper presents a new approach for effective segmentation of images that can be integrated into any model and methodology; the paradigm that we choose is classification of medical images (3-D chest CT scans) for Covid-19 detection. Our approach includes a combination of vision-language models that segment the CT scans, which are then fed to a deep neural architecture, named RACNet, for Covid-19 detection. In particular, a novel framework, named SAM2CLIP2SAM, is introduced for segmentation that leverages the strengths of both Segment Anything Model (SAM) and Contrastive Language-Image Pre-Training (CLIP) to accurately segment the right and left lungs in CT scans, subsequently feeding these segmented outputs into RACNet for classification of COVID-19 and non-COVID-19 cases. At first, SAM produces multiple part-based segmentation masks for each slice in the CT scan; then CLIP selects only the masks that are associated with the regions of interest (ROIs), i.e., the right and left lungs; finally SAM is given these ROIs as prompts and generates the final segmentation mask for the lungs. Experiments are presented across two Covid-19 annotated databases which illustrate the improved performance obtained when our method has been used for segmentation of the CT scans.

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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