Flexible Multi-scale Image Alignment Using B-Spline Reparametrization

摘要: We present a new flexible alignment method to align two images. By minimizing an energy functional measuring the difference between initial image and target image, L 2-gradient flow is derived for determining map The integrated by finite element in spatial direction explicit Euler scheme temporal direction. Multi-resolution representations are used achieving efficient multi-scale alignment. experimental results show that proposed effective, robust capable of capturing variation images, from large scale small. images model injective surjective under appropriate conditions, solution exists. on existence uniqueness ordinary differential equation discretization our established.