  3D human mesh recovery from a 2D pose plays an important role in various
applications. However, it is hard for existing methods to simultaneously
capture the multiple relations during the evolution from skeleton to mesh,
including joint-joint, joint-vertex and vertex-vertex relations, which often
leads to implausible results. To address this issue, we propose a novel
solution, called GATOR, that contains an encoder of Graph-Aware Transformer
(GAT) and a decoder with Motion-Disentangled Regression (MDR) to explore these
multiple relations. Specifically, GAT combines a GCN and a graph-aware
self-attention in parallel to capture physical and hidden joint-joint
relations. Furthermore, MDR models joint-vertex and vertex-vertex interactions
to explore joint and vertex relations. Based on the clustering characteristics
of vertex offset fields, MDR regresses the vertices by composing the predicted
base motions. Extensive experiments show that GATOR achieves state-of-the-art
performance on two challenging benchmarks.
