Time-varying connectivity of triangle mesh sequences leads to substantial difficulties in their processing. Unlike editing sequences with constant connectivity, editing sequences with varying connectivity requires addressing the problem of temporal correspondence between the frames of the sequence. We present a method for time-consistent editing of triangle mesh sequences with varying connectivity using sparse temporal correspondence, which can be obtained using existing methods. Our method includes a deformation model based on the usage of the sparse temporal correspondence, which is suitable for the temporal propagation of user-specified deformations of the edited surface with respect to the shape and true topology of the surface while preserving the individual connectivity of each frame. Since there is no other method capable of comparable types of editing on time-varying meshes, we compare our method and the proposed deformation model with a baseline approach and demonstrate the benefits of our framework.

翻译：时间变化的三角形网格序列连接性给其处理带来了巨大困难。与具有恒定连接性的序列编辑不同，编辑具有可变连接性的序列需要解决序列帧之间的时间对应问题。我们提出了一种方法，利用稀疏时间对应性（可通过现有方法获取）对具有可变连接性的三角形网格序列进行时间一致性编辑。我们的方法包含一种基于稀疏时间对应性使用的变形模型，该模型适用于用户指定编辑曲面的变形在形状和真实拓扑方面的时间传播，同时保持每帧的独立连接性。由于目前没有其他方法能够对时间变化网格进行类似类型的编辑，我们将所提出的方法与变形模型与基准方法进行了比较，并展示了我们框架的优势。