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Temporally Coherent Completion of Dynamic Shapes
| Content Provider | CiteSeerX |
|---|---|
| Author | Peers, Pieter Pauly, Mark Li, Hao Luo, Linjie Vlasic, Daniel |
| Abstract | We present a novel shape completion technique for creating temporally coherent watertight surfaces from real-time captured dynamic performances. Because of occlusions and low surface albedo, scanned mesh sequences typically exhibit large holes that persist over extended periods of time. Most conventional dynamic shape reconstruction techniques rely on template models or assume slow deformations in the input data. Our framework sidesteps these requirements and directly initializes shape completion with topology derived from the visual hull. To seal the holes with patches that are consistent with the subject’s motion, we first minimize surface bending energies in each frame to ensure smooth transitions across hole boundaries. Temporally coherent dynamics of surface patches are obtained by unwarping all frames within a time window using accurate inter-frame correspondences. Aggregated surface samples are then filtered with a temporal visibility kernel that maximizes the use of non-occluded surfaces. A key benefit of our shape completion strategy is that it does not rely on long-range correspondences or a template model. Consequently, our method does not suffer from error accumulation typically introduced by noise, large deformations, and drastic topological changes. We illustrate the effectiveness of our method on several high-resolution scans of human performances captured with a state-of-the-art multi-view 3D acquisition system. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Extended Period Dynamic Shape Error Accumulation Coherent Dynamic Initializes Shape Completion Low Surface Albedo Coherent Watertight Surface Real-time Captured Dynamic Performance Aggregated Surface Sample Coherent Completion Large Deformation Accurate Inter-frame Correspondence Drastic Topological Change Novel Shape Completion Technique Surface Patch Subject Motion Hole Boundary Long-range Correspondence Visual Hull Temporal Visibility Kernel Slow Deformation Large Hole Human Performance Input Data Smooth Transition Conventional Dynamic Shape Reconstruction Technique Acquisition System State-of-the-art Multi-view Non-occluded Surface Key Benefit Shape Completion Strategy Mesh Sequence Template Model Time Window Several High-resolution Scan |
| Content Type | Text |
