Publications in Scientific Journals:
J. Dorazil, R. Repp, T. Kropfreiter, R. Prüller, K. Riha, F. Hlawatsch:
"Tracking carotid artery wall motion using an unscented Kalman filter and data fusion";
IEEE Access,
8
(2020),
222506
- 222519.
English abstract:
Analyzing the motion of the common carotid artery (CCA) wall yields effective indicators for atherosclerosis. In this work, we propose a state-space model and a tracking method for estimating the time-varying CCA wall radius from a B-mode ultrasound sequence of arbitrary length. We employ an unscented Kalman filter that fuses two sets of measurements produced by an optical flow algorithm and a CCA wall localization algorithm. This fusion-and-tracking approach ensures that feature drift, which tends to impair optical flow based methods, is compensated in a temporally consistent manner. Simulation results show that the proposed method outperforms a recently proposed optical flow based method.
Keywords:
Atherosclerosis, data fusion, unscented Kalman Filter, motion estimation, ultrasonography, carotid artery, medical imaging, ultrasound imaging
"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
http://dx.doi.org/10.1109/ACCESS.2020.3041796
Electronic version of the publication:
https://publik.tuwien.ac.at/files/publik_293280.pdf
Created from the Publication Database of the Vienna University of Technology.