TY - GEN
T1 - Study on the improvement in accuracy of automatic tracking for regional myocardium using ultrasonic RF echo signal
AU - Yasumoto, Yoshikazu
AU - Tsuruoka, Shinji
AU - Yoshikawa, Tomohiro
AU - Shinogi, Tsuyoshi
AU - Kimura, Fumikata
AU - Wakabavashi, Tetsushi
AU - Ohyama, Wataru
AU - Sekioka, Kiyotsugu
N1 - Publisher Copyright:
© 2003 IEEE.
PY - 2003
Y1 - 2003
N2 - We have developed the automatic tracking method for regional myocardium with high accuracy on ultrasonic RF echo signal. Previously we proposed "correlation method with confidence (CMC)". However, the ability of the tracking method is insufficient for the RF signals of some subjects. This paper describes a study on the improvement in accuracy of the automatic tracking (CMC). The tracking method employs the correlation coefficients at a position as the degree of confidence of the tracking for a specified observing point, that is, it employs the position obtained by hierarchical correlation method for an observing points if the correlation coefficient of the observing point is high, and it employs the mean moved position of two nearby observing points at the same time if the correlation coefficient of the observing point is low. However, we found the unfortunate case for the tracking method, that is, the fact that the many points have low correlation coefficients at the same time. We found that the large movement of myocardium causes the tracking error for CMC.
AB - We have developed the automatic tracking method for regional myocardium with high accuracy on ultrasonic RF echo signal. Previously we proposed "correlation method with confidence (CMC)". However, the ability of the tracking method is insufficient for the RF signals of some subjects. This paper describes a study on the improvement in accuracy of the automatic tracking (CMC). The tracking method employs the correlation coefficients at a position as the degree of confidence of the tracking for a specified observing point, that is, it employs the position obtained by hierarchical correlation method for an observing points if the correlation coefficient of the observing point is high, and it employs the mean moved position of two nearby observing points at the same time if the correlation coefficient of the observing point is low. However, we found the unfortunate case for the tracking method, that is, the fact that the many points have low correlation coefficients at the same time. We found that the large movement of myocardium causes the tracking error for CMC.
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U2 - 10.1109/APBME.2003.1302654
DO - 10.1109/APBME.2003.1302654
M3 - Conference contribution
AN - SCOPUS:84945903270
T3 - APBME 2003 - IEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003
SP - 202
EP - 203
BT - APBME 2003 - IEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003, APBME 2003
Y2 - 20 October 2003 through 22 October 2003
ER -