A Modified Run-Length Coding towards the Realization of a RRO-NRDPWT-Based ECG Data Compression System. (15th March 2011)

• Record Type: Journal Article
• Authors: Lee Lee, Hsieh-Wei Hsieh-Wei; Hung Hung, King-Chu King-Chu; Wu Wu, Tsung-Ching Tsung-Ching; Ku Ku, Cheng-Tung Cheng-Tung
• Other Names: Oonincx Oonincx Patrick Patrick Academic Editor.
• Is Part Of: EURASIP journal on advances in signal processing. Volume 2011(2011)
• Publication Date: 2011-03-15
• Subjects: Signal processing -- Periodicals; Traitement du signal; Signal processing; Periodicals; 621.3822
• DOI: 10.1155/2011/703752
• Languages: English
• ISSNs: 1687-6172

Abstract

Abstract : 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.