TY - GEN
T1 - Adaptive data compression of ambulatory ECG using multi templates
AU - Akazawa, K.
AU - Uchiyama, T.
AU - Tanaka, S.
AU - Sasamori, A.
AU - Harasawa, E.
PY - 1993
Y1 - 1993
N2 - This paper proposes a new adaptive method of data compression for digital ambulatory electrocardiogram (ECG), considering diagnostic significance of each segment of ECG. R-wave is detected, followed by multi template matching of the detected beat and judgment of noise level; the templates are successively created during processing. The residual signal (difference between the original ECG and the best-fit template) is approximated with FAN (SAPA2) method and then encoded. The error threshold of FAN is decreased during P-wave segments and increased during noise segments; the maximum error of the reconstructed signal at each time is known. This method is applied to ECGs of the AHA (American Heart Association) database and its usefulness is indicated; e.g., bit rate is approximately 400bps at 8% PRD and 200bps at 15% PRD.
AB - This paper proposes a new adaptive method of data compression for digital ambulatory electrocardiogram (ECG), considering diagnostic significance of each segment of ECG. R-wave is detected, followed by multi template matching of the detected beat and judgment of noise level; the templates are successively created during processing. The residual signal (difference between the original ECG and the best-fit template) is approximated with FAN (SAPA2) method and then encoded. The error threshold of FAN is decreased during P-wave segments and increased during noise segments; the maximum error of the reconstructed signal at each time is known. This method is applied to ECGs of the AHA (American Heart Association) database and its usefulness is indicated; e.g., bit rate is approximately 400bps at 8% PRD and 200bps at 15% PRD.
UR - http://www.scopus.com/inward/record.url?scp=0027810481&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0027810481&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0027810481
SN - 0818654708
T3 - Computers in Cardiology
SP - 495
EP - 498
BT - Computers in Cardiology
PB - Publ by IEEE
T2 - Proceedings of the 1993 Conference on Computers in Cardiology
Y2 - 5 September 1993 through 8 September 1993
ER -