Title
Single Depth View Based Real-Time Reconstruction of Hand-Object Interactions
Abstract
AbstractReconstructing hand-object interactions is a challenging task due to strong occlusions and complex motions. This article proposes a real-time system that uses a single depth stream to simultaneously reconstruct hand poses, object shape, and rigid/non-rigid motions. To achieve this, we first train a joint learning network to segment the hand and object in a depth image, and to predict the 3D keypoints of the hand. With most layers shared by the two tasks, computation cost is saved for the real-time performance. A hybrid dataset is constructed here to train the network with real data (to learn real-world distributions) and synthetic data (to cover variations of objects, motions, and viewpoints). Next, the depth of the two targets and the keypoints are used in a uniform optimization to reconstruct the interacting motions. Benefitting from a novel tangential contact constraint, the system not only solves the remaining ambiguities but also keeps the real-time performance. Experiments show that our system handles different hand and object shapes, various interactive motions, and moving cameras.
Year
DOI
Venue
2021
10.1145/3451341
ACM Transactions on Graphics
Keywords
DocType
Volume
Single depth camera, hand tracking, object reconstruction, hand-object interaction
Journal
40
Issue
ISSN
Citations 
3
0730-0301
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Hao Zhang121.45
Yuxiao Zhou201.35
Yifei Tian300.34
Jun-hai Yong462061.47
Feng Xu519423.14