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Review
. 2021 Aug 26:15:682063.
doi: 10.3389/fnins.2021.682063. eCollection 2021.

Compressed Sensing of Extracellular Neurophysiology Signals: A Review

Biao Sun  1 , Wenfeng Zhao  2
Affiliations
Review

Compressed Sensing of Extracellular Neurophysiology Signals: A Review

Biao Sun et al. Front Neurosci. .

Abstract

This article presents a comprehensive survey of literature on the compressed sensing (CS) of neurophysiology signals. CS is a promising technique to achieve high-fidelity, low-rate, and hardware-efficient neural signal compression tasks for wireless streaming of massively parallel neural recording channels in next-generation neural interface technologies. The main objective is to provide a timely retrospective on applying the CS theory to the extracellular brain signals in the past decade. We will present a comprehensive review on the CS-based neural recording system architecture, the CS encoder hardware exploration and implementation, the sparse representation of neural signals, and the signal reconstruction algorithms. Deep learning-based CS methods are also discussed and compared with the traditional CS-based approaches. We will also extend our discussion to cover the technical challenges and prospects in this emerging field.

Keywords: compressed sensing; electrophysiology; sparse recovery; sparse representation (coding); wireless neural recording.

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Conflict of interest statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Figures

Figure 1
Figure 1
Compressed sensing based neural recording architecture and signal processing flow.
See this image and copyright information in PMC

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