  This paper introduces a computationally efficient technique for estimating
high-resolution Doppler blood flow from an ultrafast ultrasound image sequence.
More precisely, it consists in a new fast alternating minimization algorithm
that implements a blind deconvolution method based on robust principal
component analysis. Numerical investigation carried out on \textit{in vivo}
data shows the efficiency of the proposed approach in comparison with
state-of-the-art methods.
