Bivariate EMD Analysis Method for Discrete Plane Curve Smoothing
双变量EMD 分析的平面离散曲线光顺方法

Curve smoothing plays an important role in both Computer Aided Geometric Design and related manufacturing industries.In this paper,considering discrete digital curve is looked as non-stationary signal,a novel method of filtering discrete digital plane curves based on Bivariate Empirical Mode Decomposition(EMD) is presented.Firstly,separate the variables of the discrete plane curve,and parameterize them into two one-dimensional signals.Secondly,use the method of EMD to filter and remove the high-frequency no...