Title
UKPGAN: A General Self-Supervised Keypoint Detector
Abstract
Keypoint detection is an essential component for the object registration and alignment. In this work, we reckon keypoint detection as information compression, and force the model to distill out important points of an object. Based on this, we propose UKPGAN, a general self-supervised 3D keypoint detector where keypoints are detected so that they could reconstruct the original object shape. Two modules: GAN-based keypoint sparsity control and salient information distillation modules are proposed to locate those important keypoints. Extensive experiments show that our keypoints align well with human annotated keypoint labels, and can be applied to SMPL human bodies under various non-rigid deformations. Furthermore, our keypoint detector trained on clean object collections generalizes well to real-world scenarios, thus further improves geometric registration when combined with off-the-shelf point descriptors. Repeatability experiments show that our model is stable under both rigid and non-rigid transformations, with local reference frame estimation. Our code is available on https://github.com/qq456cvb/UKPGAN.
Year
DOI
Venue
2022
10.1109/CVPR52688.2022.01653
IEEE Conference on Computer Vision and Pattern Recognition
Keywords
DocType
Volume
Scene analysis and understanding, Representation learning, Self-& semi-& meta- Vision applications and systems
Conference
2022
Issue
Citations 
PageRank 
1
0
0.34
References 
Authors
0
6
Name
Order
Citations
PageRank
Yang You101.01
Wenhai Liu200.34
Yanjie Ze300.34
Yonglu Li4227.05
Weiming Wang5344.55
Cewu Lu699362.08