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A Point-Cloud-Based Multiview Stereo Algorithm for Free-Viewpoint Video

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3 Author(s)
Yebin Liu ; Autom. Dept., Tsinghua Univ., Beijing, China ; Qionghai Dai ; Wenli Xu

This paper presents a robust multiview stereo (MVS) algorithm for free-viewpoint video. Our MVS scheme is totally point-cloud-based and consists of three stages: point cloud extraction, merging, and meshing. To guarantee reconstruction accuracy, point clouds are first extracted according to a stereo matching metric which is robust to noise, occlusion, and lack of texture. Visual hull information, frontier points, and implicit points are then detected and fused with point fidelity information in the merging and meshing steps. All aspects of our method are designed to counteract potential challenges in MVS data sets for accurate and complete model reconstruction. Experimental results demonstrate that our technique produces the most competitive performance among current algorithms under sparse viewpoint setups according to both static and motion MVS data sets.

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Visualization and Computer Graphics, IEEE Transactions on  (Volume:16 ,  Issue: 3 )