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arXiv 2502.08025cs.CV

从脑电波到脑扫描:一种用于EEG到fMRI合成的鲁棒神经网络

From Brainwaves to Brain Scans: A Robust Neural Network for EEG-to-fMRI Synthesis

AI Development Department, Aillis, Inc.(Aillis公司人工智能开发部)

Kristofer Grover Roos, Atsushi Fukuda, Quan Huu Cap

AI总结:

针对fMRI成本高且EEG空间保真度低的问题,提出深度学习模型E2fNet,通过编码器-解码器网络将低成本的EEG多尺度特征转化为准确的fMRI图像,在三个公开数据集上取得最优SSIM表现。

摘要:

虽然功能性磁共振成像(fMRI)为大脑活动提供了有价值的见解,但其受限于高昂的运营成本和巨大的基础设施需求。相比之下,脑电图(EEG)在捕捉电活动时能提供毫秒级的精度,但缺乏精确神经定位所需的空间保真度。为了弥合这些差距,我们提出了E2fNet,这是一种简单而有效的深度学习模型,用于从低成本的EEG数据合成fMRI图像。E2fNet是一种编码器-解码器网络,专门设计用于跨电极通道捕获来自EEG的有意义的多尺度特征,并将其转化为准确的fMRI表征。在三个公开数据集上的广泛评估表明,E2fNet始终优于现有的基于CNN和transformer的方法,在结构相似性指数测度(SSIM)方面取得了最先进的结果。这些结果表明,E2fNet是一种有前景的、具有成本效益的增强神经成像能力的解决方案。代码可在https://github.com/kgr20/E2fNet获取。

英文摘要:

While functional magnetic resonance imaging (fMRI) offers valuable insights into brain activity, it is limited by high operational costs and significant infrastructural demands. In contrast, electroencephalography (EEG) provides millisecond-level precision in capturing electrical activity but lacks the spatial fidelity necessary for precise neural localization. To bridge these gaps, we propose E2fNet, a simple yet effective deep learning model for synthesizing fMRI images from low-cost EEG data. E2fNet is an encoder-decoder network specifically designed to capture and translate meaningful multi-scale features from EEG across electrode channels into accurate fMRI representations. Extensive evaluations across three public datasets demonstrate that E2fNet consistently outperforms existing CNN- and transformer-based methods, achieving state-of-the-art results in terms of the structural similarity index measure (SSIM). These results demonstrate that E2fNet is a promising, cost-effective solution for enhancing neuroimaging capabilities. The code is available at https://github.com/kgr20/E2fNet.

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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