动态自洽的相关变分方法用于鲁棒光学流场分析

We present in this paper a novel combined
scheme dedicated to the measurement of velocity in fluid
experimental flows through image sequences. The proposed
technique satisfies the NavierStokes equations and
combines the robustness of correlation techniques with the
high density of global variational methods. It can be considered
either as a reenforcement of fluid dedicated opticalflow
methods towards robustness, or as an enhancement of
correlation approaches towards dense information. This
results in a physics-based technique that is robust under
noise and outliers, while providing a dense motion field.
The method was applied on synthetic images and on real
experiments in turbulent flows carried out to allow a
thorough comparison with a state of the art variational and
correlation methods.
1 Introduction 德国LaVision PIV/PLIF粒子成像测速场仪