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A variational phase field method for curve smoothing

机译:变分相场法进行曲线平滑

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摘要

A variational phase field model is proposed for curve smoothing, in which a weight function is associated with the similarity measure term in the model so that important geometric features could be well preserved. Finite element approximation of the proposed model is given for its numerical implementation. Since the model has a linear weak variational form, the discretized system could be solved efficiently by many existing solution techniques. An effective algorithm is also developed, for the purpose of feature preservation, to automatically determine the weight from the given data. Various numerical examples are presented to demonstrate effectiveness and robustness of the proposed method.
机译:提出了一种用于曲线平滑的变分相场模型,其中权重函数与模型中的相似性度量项相关联,从而可以很好地保留重要的几何特征。给出了该模型的有限元逼近,以进行数值计算。由于模型具有线性弱变分形式,因此离散化系统可以通过许多现有的求解技术有效地求解。为了保持特征,还开发了一种有效的算法,可以根据给定的数据自动确定权重。给出了各种数值示例,以证明所提出方法的有效性和鲁棒性。

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