Dynamic Speckle Tracking Based on B-spline Model
Yipeng Li, Junhua Chen · International Journal of Signal Processing Systems · 2013
We developed an elastic registration approach to compute cardiac motion by analysis of 3D ultrasound image sequences. The main principles applied here were the modeling of the unknown spatial deformations between two successive views by B-splines, and the minimization of a cost function derived by a maximum likelihood technique applied to the log-speckle noise. Numerical results matched quite well the patient specific geometric models of the mitral valve annulus generated by splines based on 3D image tagging by cardiologists.