Patrick R. Girard

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Different mathematical tools, such as multidimensional analytic signals, allow for the calculation of 2D spatial phases of real-value images. The motion estimation method proposed in this paper is based on two spatial phases of the 2D analytic signal applied to cardiac sequences. By combining the information of these phases issued from analytic signals of(More)
A new optical flow method is presented for estimating myocardial motion from MR image sequences. The concept of the local shape is introduced to generate four optical flow equations. Next, the interpolation operation is utilized to solve the four optical flow equations. Then a cost function is formulated from the intensity equation and gradient equations.(More)
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