کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
442321 692201 2012 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Empirical mode decomposition on surfaces
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر گرافیک کامپیوتری و طراحی به کمک کامپیوتر
پیش نمایش صفحه اول مقاله
Empirical mode decomposition on surfaces
چکیده انگلیسی

Empirical Mode Decomposition (EMD) is a powerful tool for analysing non-linear and non-stationary signals, and has drawn a great deal of attentions in various areas. In this paper, we generalize the classical EMD from Euclidean space to the setting of surfaces represented as triangular meshes. Inspired by the EMD, we also propose a feature-preserving smoothing method based on extremal envelopes. The core of our generalized EMD on surfaces is an envelope computation method that solves a bi-harmonic field with Dirichlet boundary conditions. Experimental results show that the proposed generalization of EMD on surfaces works well. We also demonstrate that the generalized EMD can be effectively utilized in filtering scalar functions defined over surfaces and surfaces themselves.

Figure optionsDownload as PowerPoint slideHighlights
► This paper generalizes the classical concept of Empirical Mode Decomposition (EMD) from Euclidean space to the setting of surfaces.
► The generalized EMD on surfaces is used for filtering scalar functions defined over surfaces and surfaces themselves.
► A novel feature-preserving surface smoothing method is proposed based on extremal envelopes inspired by the EMD.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Graphical Models - Volume 74, Issue 4, July 2012, Pages 173–183
نویسندگان
, , , , ,