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基于样条泛函的光流计算
Optical flow computation based on spline functionals
【摘要】 给出了以样条泛函作为光滑约束的数学模型,并且给出了光流计算最小化问题解的必要条件。该模型包含了二阶和四阶偏微分方程以约束这两个特例。该模型从方法学角度为光流计算的形式化表示和数值计算提供了依据。采用该数学模型的意义还在于它能将光流计算的方程组简化为线性代数方程组。这种转换便于光流方程的离散化表示,同时也从代数方程的角度验证了光滑约束的使用能确保解的存在性和唯一性。
【Abstract】 A mathematical model using the spline functional as smooth constraints was presented.The second-and fourth-order partial differential equations constraints were two special cases in the model.The necessary condition for optical flow minimization problem solution was also presented.This model provided a basis for formal representation and numerical computation of optical flow from a methodological point of view.The significance of this mathematical model lay in the simplification of the equations for optical flow computation into linear algebraic equations.The simplification can contribute to discrete representation of the optical flow equation,and also verify that the use of smoothness constraints can ensure the existence and uniqueness of the solution from the view of the algebraic equations.
【Key words】 optical flow; spline functionals; partial deferential equation(PDE); smooth constraint;
- 【文献出处】 吉林大学学报(工学版) ,Journal of Jilin University(Engineering and Technology Edition) , 编辑部邮箱 ,2013年S1期
- 【分类号】TP391.41
- 【被引频次】2
- 【下载频次】57