自适应频带路由网络,高效去除脑电图中的眼动与肌电干扰。
BandRouteNet: An Adaptive Band Routing Neural Network for EEG Artifact Removal

- 按频带分治处理,结合动态路由机制精准定位噪声
- 在多种干扰下性能超越现有方法,参数仅0.2M
- 适合资源受限场景,如可穿戴脑机接口设备
脑电图(EEG)极易受眼动(EOG)和肌电(EMG)等伪影污染,严重降低信号质量并影响神经诊断与脑机接口等应用的可靠性。由于不同伪影源具有多样且随时间变化的分布特征,以及跨频带的显著谱特性差异,有效去噪仍具挑战。为此,本文提出BandRouteNet,一种自适应频率感知的神经网络,联合利用频带特异性处理与全频带上下文建模。该模型在各频带内执行分频去噪,以显式捕捉依赖频率的伪影模式;同时引入路由机制,自适应决定每段时序中各频带的去噪强度与位置。此外,一个全频带条件模块直接处理原始噪声信号,提取全局时序上下文,生成调制分频路径的条件参数,并提供粗粒度信号重构补充最终输出。在EEGDenoiseNet基准数据集上的大量实验表明,无论在EOG、EMG还是混合伪影条件下,BandRouteNet在相对均方根误差(RRMSE)与信噪比提升(SNR$_{\text{imp}}$)上均优于其他方法,且仅含0.2M可训练参数,展现出在资源受限场景下的高潜力。
原文摘要 · Abstract (English)
Electroencephalography (EEG) is highly susceptible to artifact contamination, such as electrooculographic (EOG) and electromyographic (EMG) interference, which severely degrades signal quality and hinders reliable interpretation in applications including neurological diagnosis, brain-computer interfaces (BCIs), etc. Effective EEG denoising remains challenging because different artifact sources exhibit diverse and temporally varying distributions, together with distinct spectral characteristics across frequency bands. To address these issues, we propose BandRouteNet, an adaptive frequency-aware neural network for EEG denoising that jointly exploits band-specific processing and full-band contextual modeling. The proposed model performs band-wise denoising to explicitly capture frequency-dependent artifact patterns. Within this framework, we introduce a routing mechanism that adaptively determines where and to what extent denoising should be applied across temporal locations within each frequency band. In parallel, a full-band conditioner directly processes the original noisy EEG to extract global temporal context, producing both conditional parameters for modulating the band-wise pathway and a coarse-grained signal-level refinement to supplement the final reconstruction. Extensive experiments on the EEGDenoiseNet benchmark dataset demonstrate that BandRouteNet outperforms other methods under EOG, EMG, and mixed-artifact conditions in terms of Relative Root Mean Square Error (RRMSE) and Signal-to-Noise Ratio Improvement (SNR$_{\text{imp}}$) under unified experimental settings, while remaining highly parameter-efficient with only 0.2M trainable parameters. These results highlight its strong potential for high-performance EEG artifact removal in resource-constrained applications.
Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。