Topology-Change-Aware Volumetric Fusion for Dynamic Scene Reconstruction
Topology-Change-Aware Volumetric Fusion for Dynamic Scene Reconstruction
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DOI：
10.1007/978-3-030-58517-4_16
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发表时间：
2020-07
期刊：
影响因子：
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通讯作者：
Chao Li;Xiaohu Guo
中科院分区：
文献类型：
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作者：
Chao Li;Xiaohu Guo
拓扑变化是动态场景4D重建的一个挑战性问题。在经典的基于体融合的框架中，通常从TSDF体中提取一个网格作为正则表面表示来帮助估计变形场。然而，由于表面网格具有固定连通性，但变形场可能不连续，因此表面和嵌入变形图（EDG）表示在拓扑变化时会产生冲突。在本文中，经典的框架进行了重新设计，使4D重建的动态场景下的拓扑变化，通过引入一种新的结构的非流形体网格TSDF和EDG的重新设计，它允许通过单元分裂和复制的连接更新。实验结果表明，令人信服的重建结果的拓扑结构变化的动态场景，相比，国家的最先进的方法。
Topology change is a challenging problem for 4D reconstruction of dynamic scenes. In the classic volumetric fusion-based framework, a mesh is usually extracted from the TSDF volume as the canonical surface representation to help estimating deformation field. However, the surface and Embedded Deformation Graph (EDG) representations bring conflicts under topology changes since the surface mesh has fixed-connectivity but the deformation field can be discontinuous. In this paper, the classic framework is re-designed to enable 4D reconstruction of dynamic scene under topology changes, by introducing a novel structure of Non-manifold Volumetric Grid to the re-design of both TSDF and EDG, which allows connectivity updates by cell splitting and replication. Experiments show convincing reconstruction results for dynamic scenes of topology changes, as compared to the state-of-the-art methods.