Title :
Dense motion field estimation involving discontinuities applied to echocardiographic image sequences
Author :
Basset, A. ; Orkisz, M. ; Magnin, I.E. ; Brion, R.
fDate :
Oct. 31 1994-Nov. 3 1994
Abstract :
A motion estimation algorithm is described, Initial estimates are obtained by block matching. Regularization is anisotropic, controlled by a confidence measure which combines residual matching error and its variance, and is intended to smooth homogenous regions and to avoid smoothing over motion boundaries. This algorithm, initially conceived for video images, is applied to echocardiograms and magnetic resonance images. Non-rigid motion is correctly estimated and motion discontinuities are preserved. Possible improvements are outlined
Keywords :
biomedical NMR; cardiology; echocardiography; image sequences; medical image processing; motion estimation; anisotropic regularization; block matching; confidence measure; dense motion field estimation; discontinuities; echocardiographic image sequences; magnetic resonance images; motion discontinuities; motion estimation algorithm; nonrigid motion; residual matching error; Biomedical signal processing; Discontinuities; Echocardiography; Image motion analysis; Image sequence analysis; Magnetic resonance cardiography;
Conference_Titel :
Ultrasonics Symposium, 1994. Proceedings., 1994 IEEE
Conference_Location :
Cannes, France
Print_ISBN :
0-7803-2012-3
DOI :
10.1109/ULTSYM.1994.401892
