小位移光流计算的中值公式

光流场反映了图像上每一点灰度的变化趋势,其计算的可靠性和效率已成为运动跟踪领域研究的热点问题.变分方法是用来实现光流计算的主流方法之一,但其计算效率较低.利用对偶方法虽然克服了变分方法中引入小规则参数的问题,计算速度有所提高,但并未有实质性改进.引入了中值公式计算光流,避免了复杂的迭代计算过程,提高了计算效率.首先简单介绍了光流计算模型中数据项和光滑项的不同模型假设,然后利用中值公式计算小位移光流场.通过实验对对偶方法和中值公式的实验时间进行比较,验证了中值公式的有效性和效率.

Median formula for optic flow computation of small displacement

Optic flow field reflects the changing trend of image,its computation reliability and efficiency have been the hot spot in motion tracking fields.Variational method is one of the mainstream methods for computing optic flow,but its efficiency is very slow.Dual method overcomes the difficulty that introduces small parameter in variational method,and increases the computation speed;however no substantial improvement is achieved.In this paper,median formula is introduced to compute optic flow,which could avoid ...