English

Dual Geometric Graph Network (DG2N) -- Iterative network for deformable shape alignment

Computer Vision and Pattern Recognition 2021-12-15 v2 Machine Learning

Abstract

We provide a novel new approach for aligning geometric models using a dual graph structure where local features are mapping probabilities. Alignment of non-rigid structures is one of the most challenging computer vision tasks due to the high number of unknowns needed to model the correspondence. We have seen a leap forward using DNN models in template alignment and functional maps, but those methods fail for inter-class alignment where nonisometric deformations exist. Here we propose to rethink this task and use unrolling concepts on a dual graph structure - one for a forward map and one for a backward map, where the features are pulled back matching probabilities from the target into the source. We report state of the art results on stretchable domains alignment in a rapid and stable solution for meshes and cloud of points.

Keywords

Cite

@article{arxiv.2011.14723,
  title  = {Dual Geometric Graph Network (DG2N) -- Iterative network for deformable shape alignment},
  author = {Dvir Ginzburg and Dan Raviv},
  journal= {arXiv preprint arXiv:2011.14723},
  year   = {2021}
}
R2 v1 2026-06-23T20:35:46.815Z