Multi-Dimensional Framework for EEG Signal Processing and Denoising Through Tensor-based Architecture
Electroencephalography (EEG) stands as a crucial tool in neuroscientific research and clinical diagnostics, providing valuable insights into the electrical activities of the brain. Traditional EEG signal processing techniques, predominantly linear and constrained to time-frequency analysis, often fail to capture the intricate, dynamic nature of brain signals. This paper introduces a tensor-based multi-dimensional framework for EEG signal processing and denoising, aimed at overcoming the limitations of current methods. Utilizing the advanced mathematical construct of tensors, this framework allows for a more holistic representation and analysis of EEG data, encompassing multiple dimensions such as time, electrode space, and frequency bands. We propose innovative algorithms for multi-dimensional Fourier transforms and adaptive thresholding, specifically tailored to address the challenges of non-stationary noise and complex signal artifacts in EEG data. The framework is further enriched with a time-slicing algorithm that facilitates real-time analysis, crucial for applications like seizure detection and brain-computer interfacing. Theoretical formulations and simulated scenarios demonstrate the potential of this framework in significantly enhancing the accuracy, efficiency, and speed of EEG signal processing. This approach not only holds promise for advanced EEG analysis but also sets the stage for future integrations with other neuroimaging modalities, paving the way for comprehensive and nuanced understanding of brain function.
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