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A Modified Run-Length Coding towards the Realization of a RRO-NRDPWT-Based ECG Data Compression System


The wavelet-based approach that combines a reversible round-off nonrecursive discrete periodized wavelet transform (RRO-NRDPWT) and the set partitioning in hierarchical trees (SPIHT) scheme is an efficient ECG data compression. However, this RRO-NRDPWT-based system suffers from the high complexity of the SPIHT scheme during realization. In this paper, a modified run-length coding (MRLC) algorithm is proposed towards the realization of a RRO-NRDPWT-based ECG data compression system. The MRLC with its regularity and low computational complexity is suitable for hardware implementation, but at a cost of compression performance. This sacrifice is compensated by an efficient quantization scheme. By using the MIT-BIH arrhythmia database, the experimental results show that the proposed scheme can compete with the SPIHT scheme for a compression ratio (CR) greater than 8. Hardware simulations are taken using both the Verilog logic simulator with Cadence design platform, and a Xilinx FPGA EP2C35F672C6.

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Correspondence to Hsieh-Wei Lee.

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Lee, HW., Hung, KC., Wu, TC. et al. A Modified Run-Length Coding towards the Realization of a RRO-NRDPWT-Based ECG Data Compression System. EURASIP J. Adv. Signal Process. 2011, 703752 (2011).

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  • Quantum Information
  • Efficient Quantization
  • Compression Ratio
  • Hardware Implementation
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