Optimal zonal wavelet-based ECG data compression for a mobile telecardiology system.
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Date
2000-11-07
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Abstract
A new integrated design approach for an optimal zonal wavelet based ECG data compression OZWC method for a mobile telecardiology model is presented The hybrid implementation issues of this wavelet method with a GSM based mobile telecardiology system are also introduced The performance of the mobile system with compressed ECG data segments selected from the MIT BIH arrhythmia data base is evaluated in terms of bit error rate BER percent rms difference PRD and visual clinical inspection The compression performance analysis of the OZWC is compared with another wavelet based Discrete Symmetric Wavelet Compression approach The optimal wavelet algorithm achieved a maximum compression ratio of 18 1 with low PRD ratios The mobile telemedical simulation results show the successful compressed ECG transmission at speeds of 100 km h with BER rates of less than 10 15 providing a 73 reduction in total mobile transmission time with clinically acceptable reconstruction of the received signals This approach will provide a framework for the design and functionality issues of GSM based wireless telemedicine systems with wavelet compression techniques and their future integration for the next generation of mobile telecardiology systems