Abstract
Dense motion field estimation on a echocardiographic sequence. The estimation of the dense motion field is a first stage treatment often encountered in echocardiographic sequence diagnosis systems. Due to the low time sampling rate and the significant noise of such images, the usual methods based on the first order approximation of the optical flow constraint are inefficient. In this paper we propose a new method capable of dealing with these two problems by using the discrete form of this constraint. However, with this approach we are confronted with a non-convex minimization problem, dealt with by means of a continuation process. Finally, we present the results obtained on different echocardiographic sequences.
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