To benefit from big data in Earth Observation, and to make the fusion of several sensors, a first step involves the common mapping of all the images available on the same site. This is the stage called coregistration. For all our remote sensing images, we want to have a tool able to superimpose the different images of the same site with a tool that is fast enough to handle large temporal stacks or large volumes.
Also, in MEDUSA, we developp GeFolki, an algorithm based on the classical optical flow framework.
GeFolki code is now avalaible for free in matlab and Python