TY - GEN
T1 - Interframe registration of IVUS images due to catheter rotation with feature-based optical flow
AU - Danilouchkine, Mikhail G.
AU - Mastik, Frits
AU - Van Der Steen, Antonius F.W.
PY - 2007
Y1 - 2007
N2 - The quantitative assessment of and compensation for catheter rotation in Intravascular Ultrasound (IVUS) im-ages presents a fundamental problem for noninvasive characterization of the mechanical properties of the coronary arteries. A method based on the scale-space optical flow algorithm with a feature-based weighting scheme is proposed to account for the aforementioned artifact. The computed vector field, describing the transformation between two consecutive frames, allows the quantitative assessment of the amount of vessel wall tissue motion, which is directly related to the catheter rotation. Algorithm accuracy and robustness were demonstrated on a tissue-mimicking phantom, subjected to controlled amount of angular deviation. The proposed method shows a great reliability in prediction of catheter rotational motion up to 4°.
AB - The quantitative assessment of and compensation for catheter rotation in Intravascular Ultrasound (IVUS) im-ages presents a fundamental problem for noninvasive characterization of the mechanical properties of the coronary arteries. A method based on the scale-space optical flow algorithm with a feature-based weighting scheme is proposed to account for the aforementioned artifact. The computed vector field, describing the transformation between two consecutive frames, allows the quantitative assessment of the amount of vessel wall tissue motion, which is directly related to the catheter rotation. Algorithm accuracy and robustness were demonstrated on a tissue-mimicking phantom, subjected to controlled amount of angular deviation. The proposed method shows a great reliability in prediction of catheter rotational motion up to 4°.
UR - http://www.scopus.com/inward/record.url?scp=35148837702&partnerID=8YFLogxK
U2 - 10.1117/12.707303
DO - 10.1117/12.707303
M3 - Conference proceeding
AN - SCOPUS:35148837702
SN - 081946631X
SN - 9780819466310
T3 - Progress in Biomedical Optics and Imaging - Proceedings of SPIE
BT - Medical Imaging 2007
T2 - Medical Imaging 2007: Ultrasonic Imaging and Signal Processing
Y2 - 18 February 2007 through 19 February 2007
ER -