Title
Vaccine-style-net: Point Cloud Completion in Implicit Continuous Function Space
Abstract
Though recent advances in point cloud completion have shown exciting promise with learning-based methods, most of them still generate coarse point clouds with a fixed number of points (e.g. 2048). In this paper, we propose Vaccine-Style-Net, a new point cloud completion method that can produce high resolution 3D shapes with complete smooth surface. Vaccine-Style-Net performs point cloud completion in the function space of 3D surface, which represent the 3D surface as the continuous decision boundary function. Meanwhile, a reinforcement learning agent is embedded to deduce the complete 3D geometry from the incomplete point cloud. In contrast to the existing approaches, the completed 3D shapes produced by our method can be any resolution without excessive memory footprint. Moreover, to increase the diversity and adaptability of the method, we introduce two-type-free-form masks to simulate various corrupted inputs as well as a mask dataset called onion-peeling-mask (OPM). Finally, we discuss the limitations of existing evaluation metrics for shape completion tasks and explore a novel metric to supplement the existing ones. Experiments demonstrate that our method not only achieves competitive results qualitatively and quantitatively but also can produce a continuous 3D shape with any resolution.
Year
DOI
Venue
2020
10.1145/3394171.3413648
MM '20: The 28th ACM International Conference on Multimedia Seattle WA USA October, 2020
DocType
ISBN
Citations 
Conference
978-1-4503-7988-5
0
PageRank 
References 
Authors
0.34
17
6
Name
Order
Citations
PageRank
Wei Yan100.34
Ruonan Zhang2397.03
Jing Wang311.74
shan liu49649.62
Thomas H. Li57313.20
Ge Li611229.37