Hybrid encoding algorithm for real time compressed electrocardiogram acquisition
| Autor: | Priyanka Bera, Rajarshi Gupta |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
business.industry
Computer science Remote patient monitoring Applied Mathematics Speech recognition 020208 electrical & electronic engineering 0206 medical engineering Pattern recognition Data_CODINGANDINFORMATIONTHEORY 02 engineering and technology Lossy compression Condensed Matter Physics 020601 biomedical engineering Compression ratio Information complexity 0202 electrical engineering electronic engineering information engineering Wireless Entropy (information theory) Encoding algorithm Artificial intelligence Electrical and Electronic Engineering business Equal size Instrumentation |
| Zdroj: | Measurement. 91:651-660 |
| ISSN: | 0263-2241 |
| Popis: | Tele-healthcare systems have shown a great promise toward flexibility in wireless medical signal collection and increased mobility of the patient to achieve early diagnosis. We describe a simple, lossy compression algorithm for single lead Electrocardiograms (ECG) using a hybrid encoding strategy, which can be utilized for patient monitoring application. It detects the ECG beats in real time, divides it into equal size ‘plain’ or ‘complex’ blocks based on complexity measure and allocate bits using two different principles to optimize the entropy (bits per sample efficiency) in the encoded bit-stream. With MIT BIH arrhythmia data at 1 kHz sampling and 10-bit quantization, the algorithm achieved an average CR and PRDN of 10.99 and 3.27 respectively, with average bit per sample value of 1.49. The average distortion in clinical signatures using PTB diagnostic ECG data was found to be less than 3%, which is clinically acceptable. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect