지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국산업응용수학회 JOURNAL OF THE KOREAN SOCIETY FOR INDUSTRIAL AND APPLIED MATHEMATICS Journal of the Korean Society for Industrial and Applied Mathematics Vol.18 No.2
- 발행연도
- 2014.6
- 수록면
- 181 - 192 (12page)
이용수
초록· 키워드
오류제보하기
In this paper, we propose a robust real-time myocardial border tracking algorithm for echocardiography. Commonly, after an initial contour of LV border is traced at one or two frame from the entire cardiac cycle, LV contour tracking is performed over the remaining frames. Among a variety of tracking techniques, optical flow method is the most widely used for motion estimation of moving objects. However, when echocardiography data is heavily corrupted in some local regions, the errors bring the tracking point out of the endocardial border, resulting in distorted LV contours. This shape distortion often occurs in practice since the data acquisition is affected by ultrasound artifacts, dropout or shadowing phenomena of cardiac walls. The proposed method deals with this shape distortion problem and reflects the motion realistic LV shape by applying global deformation modeled as affine transform partitively to the contour. We partition the tracking points on the contour into a few groups and determine each affine transform governing the motion of the partitioned contour points. To compute the coefficients of each affine transform, we use the least squares method with equality constraints that are given by the relationship between the coefficients and a few contour points showing good tracking results. Many real experiments show that the proposed method supports better performance than existing methods.
목차
ABSTRACT
1. INTRODUCTION
2. METHODS
3. EXPERIMENTAL RESULTS
4. DISCUSSION AND CONCLUSION
REFERENCES
참고문헌 (28)
참고문헌 신청
1. [학술지(정기간행물)] - V. Mor-Avi / 2004 / Fast measurement of left ventricular mass with real-time three-dimensional echocardiography: comparison with magnetic resonance imaging / IEEE Transactions on Image Processing 110 (13) : 1814 ~ 1818
2. [학술지(정기간행물)] - F. Veronesi / 2006 / Tracking of left ventricular long axis from real-time three-dimensional echocardiography using optical flow techniques / IEEE Trans Inf Technol Biomed 10 (1) : 174 ~ 181
3. [학술지(정기간행물)] - J. Hansegard / 2009 / Semi-automated quantification of left ventricular volumes and ejection fraction by real-time three-dimensional echocardiography / Cardiovasc Ultrasound 7 (18) : 1 ~ 10
4. [학술지(정기간행물)] - K. Y. E. Leung / 2010 / Automated border detection in three-dimensional echocardiography: principles and promises / Eur J Echocardiogr 11 (2) : 97 ~ 108
5. [학술지(정기간행물)] - E. D. Angelini / 2001 / LV Volume Quantification via Spatiotemporal Analysis of Real-Time 3-D Echocardiography / IEEE Trans Med Imaging : 457 ~ 469
2. [학술지(정기간행물)] - F. Veronesi / 2006 / Tracking of left ventricular long axis from real-time three-dimensional echocardiography using optical flow techniques / IEEE Trans Inf Technol Biomed 10 (1) : 174 ~ 181
3. [학술지(정기간행물)] - J. Hansegard / 2009 / Semi-automated quantification of left ventricular volumes and ejection fraction by real-time three-dimensional echocardiography / Cardiovasc Ultrasound 7 (18) : 1 ~ 10
4. [학술지(정기간행물)] - K. Y. E. Leung / 2010 / Automated border detection in three-dimensional echocardiography: principles and promises / Eur J Echocardiogr 11 (2) : 97 ~ 108
5. [학술지(정기간행물)] - E. D. Angelini / 2001 / LV Volume Quantification via Spatiotemporal Analysis of Real-Time 3-D Echocardiography / IEEE Trans Med Imaging : 457 ~ 469
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