Fluid motion estimation

A motion estimation algorithm was developped. It estimates the deformation between two images, under the hypothesis that a regular deformation field allows to transform the first image into the second image.
This algorithm was tested on sequences of images of fluids seeded with particles, obtained at the Coriolis rotating turntable in Grenoble, France.

Left: ones of the two images used to estimate the motion of the fluid ; right: the velocity identified by our algorithm

Zoom on the vortex identified by our approach (left) and by the classical PIV method (right)