一种改进的变分光流计算方法

Improved Method for Variational Optic Flow Computation

提出一种改进的变分光流算法的能量泛函,该能量泛函的数据项由灰度不变假设和Hessian矩阵不变假设组成,并与Lucas局部光流一致方法相结合。平滑项的设计采用先各项同性平滑再各项异性平滑的策略,其中引入图像一致增强思想。实验结果证明,运用该方法进行光流计算的效果比以往变分方法有所改进。

This paper proposes an improved energy functional of variational model, the data terms are composed of the brightness constancy assumption and the Hessian constancy assumption, and combines with Lucas＇ local constancy assumption. As for the design of smoothness term in the energy functional, it selects the method of using isotropic strategy first then using anisotropic strategy, with embedding coherence enhancing diffusion strategy. Experimental results prove that the method is improved to a certain extent compared with the previous variational model of optical flow calculation,