Finite-element method for nonrigid motion estimation

Vincent Devlaminck

doi:10.1117/12.222682

3 October 1995 Finite-element method for nonrigid motion estimation

Vincent Devlaminck

Proceedings Volume 2588, Intelligent Robots and Computer Vision XIV: Algorithms, Techniques, Active Vision, and Materials Handling; (1995) https://doi.org/10.1117/12.222682
Event: Photonics East '95, 1995, Philadelphia, PA, United States

Abstract

We propose a method for estimation of nonrigid motions in image sequences without segmentation technics. This method is based on the use of a Finite Element Method (FEM). We show how a motion process and an adaptative-size mesh procedure can be used to compute a nonrigid motion estimation. The algorithm is based on three steps. In the first step, an initial regular mesh is applied on the first frame. Then a velocity components estimation is computed using an energy function minimization. A FEM analysis based on the present mesh gives the velocity components for all the nodes of the mesh between the first and the second frame. Finally the new positions of the nodes are computed. These positions are the result of the sum of the old position and the estimated displacement or deformation. The algorithm is tested with different types of finite elements.

Citation Download Citation

Vincent Devlaminck "Finite-element method for nonrigid motion estimation", Proc. SPIE 2588, Intelligent Robots and Computer Vision XIV: Algorithms, Techniques, Active Vision, and Materials Handling, (3 October 1995); https://doi.org/10.1117/12.222682

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