Eddy tracking of unsteady flow field

摘要

Eddy tracking is just finding all the vectors with similar motion in its influence region and recording its moving route. Virtually, a flow field is able to be replaced with a scalar dataset, if its feature information can be faithfully preserved by the scalar dataset. Therefore, the eddy tracking problem can be solved by tracking the moving objects in an image sequence after a certain transformation. Here, we propose a new method to track several moving eddies simultaneously and three main technologies are introduced: green function method, motion probability distribution and quadratic program.