An ECG compression technique for telecardiology application

Author

Gupta, R. ; Mitra, M.

Author_Institution

Dept. of Appl. Phys., Univ. of Calcutta, Kolkata, India

fYear

2011

fDate

16-18 Dec. 2011

Firstpage

1

Lastpage

4

Abstract

An offline ECG compression technique, based on encoding of successive sample differences is proposed. The encoded elements are generated through four stages, viz., down sampling of raw samples, normalization of successive sample differences; data grouping; magnitude and sign encoding; and finally zero element compression. Initially, the compression algorithm is validated with short duration raw ECG samples from PTB database under Physionet. MATLAB simulation results using ptb-db data with 8-bit quantization results a compression ratio (CR) of 9.02 and percentage root mean square difference (PRD) of 2.51. With mit-db these figures are 4.68 and 0.739 respectively. The algorithm is presently being implemented in a wireless telecardiology system using a standalone embedded system.

Keywords

electrocardiography; ECG compression technique; MATLAB simulation; PTB database; compression algorithm; compression ratio; percentage root mean square difference; telecardiology application; wireless telecardiology; Arrays; Decoding; Electrocardiography; Encoding; Lead; Quantization; Wireless communication; ECG compression; Electrocardiograph; telecardiology;

fLanguage

English

Publisher

ieee

Conference_Titel

India Conference (INDICON), 2011 Annual IEEE

Conference_Location

Hyderabad

Print_ISBN

978-1-4577-1110-7

Type

conf

DOI

10.1109/INDCON.2011.6139329

Filename

6139329