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KMID : 1144120200100020299
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Biomedical Engineering Letters
2020 Volume.10 No. 2 p.299 ~ p.307
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A compressed-sensing-based compressor for ECG
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Izadi Vahi
Shahri Pouria Karimi
Ahani Hamed
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Abstract
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Electrocardiogram (ECG) data compression has numerous applications. The time for generating compressed samples is a vital factor when we consider ambulatory devices, with the fact that data should be sent to the physician as soon as possible. In addition, there are some wearable ECG recorders that have limited power, and may only be capable of doing simple algorithms. With the aim of increasing the speed and simplicity of the compressors, we propose a system architecture that can generate compressed ECG samples, in a linear method and with CR 75%. We used sparsity of the ECG signal and proposed a system based on compressed sensing (CS) that can compress ECG samples, almost in real-time. We applied CS in a very small size in order to accelerate the compression phase and accordingly reducing the power consumption. Also, in the recovery phase, we used the recently developed Kronecker technique to improve the quality of the recovered signal. The system designed based on full-adder/subtractor (FAS) and shift registers, without using any external processor or any training algorithm.
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KEYWORD
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Compressed sensing (CS), Electrocardiogram (ECG), Compressor
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