arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1812.02415cs.CV
收藏

密集形状对应的自监督学习

Self-supervised Learning of Dense Shape Correspondence

Technion(以色列理工学院);Facebook AI Research(脸书人工智能研究院);Sapienza University of Rome(罗马第一大学)

Oshri Halimi, Or Litany, Emanuele Rodolà, Alex Bronstein, Ron Kimmel

摘要:

我们介绍了第一个完全无监督的对应学习方法,可变形的3D形状。我们的模型的关键是理解自然变形(例如姿势的变化)近似地保留了表面的度量结构,从而产生了一个自然的标准来驱动学习过程以实现失真最小化的预测。在此基础上,我们克服了需要注释的数据,取而代之的是一个纯粹的几何标准。由此产生的学习模型是类不可知的,并且能够利用任何类型的可变形几何数据用于训练阶段。与现有的专门针对训练时看到的类的监督方法相比,我们展示了更强的泛化能力以及对各种具有挑战性的设置的适用性。我们展示了我们的方法在广泛的选择对应基准,我们优于其他方法的准确性,泛化和效率。

英文摘要:

We introduce the first completely unsupervised correspondence learning approach for deformable 3D shapes. Key to our model is the understanding that natural deformations (such as changes in pose) approximately preserve the metric structure of the surface, yielding a natural criterion to drive the learning process toward distortion-minimizing predictions. On this basis, we overcome the need for annotated data and replace it by a purely geometric criterion. The resulting learning model is class-agnostic, and is able to leverage any type of deformable geometric data for the training phase. In contrast to existing supervised approaches which specialize on the class seen at training time, we demonstrate stronger generalization as well as applicability to a variety of challenging settings. We showcase our method on a wide selection of correspondence benchmarks, where we outperform other methods in terms of accuracy, generalization, and efficiency.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑