Title
MGCN: descriptor learning using multiscale GCNs
Abstract
AbstractWe propose a novel framework for computing descriptors for characterizing points on three-dimensional surfaces. First, we present a new non-learned feature that uses graph wavelets to decompose the Dirichlet energy on a surface. We call this new feature Wavelet Energy Decomposition Signature (WEDS). Second, we propose a new Multiscale Graph Convolutional Network (MGCN) to transform a non-learned feature to a more discriminative descriptor. Our results show that the new descriptor WEDS is more discriminative than the current state-of-the-art non-learned descriptors and that the combination of WEDS and MGCN is better than the state-of-the-art learned descriptors. An important design criterion for our descriptor is the robustness to different surface discretizations including triangulations with varying numbers of vertices. Our results demonstrate that previous graph convolutional networks significantly overfit to a particular resolution or even a particular triangulation, but MGCN generalizes well to different surface discretizations. In addition, MGCN is compatible with previous descriptors and it can also be used to improve the performance of other descriptors, such as the heat kernel signature, the wave kernel signature, or the local point signature.
Year
DOI
Venue
2020
10.1145/3386569.3392443
ACM Transactions on Graphics
Keywords
DocType
Volume
Multiscale, Energy Decomposition, Wavelet Convolution, Shape Matching
Journal
39
Issue
ISSN
Citations 
4
0730-0301
0
PageRank 
References 
Authors
0.34
0
6
Name
Order
Citations
PageRank
Wang Yiqun122617.63
Jing Ren2379.13
Dong-Ming Yan372552.60
Jianwei Guo42711.29
Xiaopeng Zhang55518.84
Peter Wonka62854165.59