Title
Learning Contrastive Representation for Semantic Correspondence
Abstract
Dense correspondence across semantically related images has been extensively studied, but still faces two challenges: 1) large variations in appearance, scale and pose exist even for objects from the same category, and 2) labeling pixel-level dense correspondences is labor intensive and infeasible to scale. Most existing methods focus on designing various matching modules using fully-supervised ImageNet pretrained networks. On the other hand, while a variety of self-supervised approaches are proposed to explicitly measure image-level similarities, correspondence matching the pixel level remains under-explored. In this work, we propose a multi-level contrastive learning approach for semantic matching, which does not rely on any ImageNet pretrained model. We show that image-level contrastive learning is a key component to encourage the convolutional features to find correspondence between similar objects, while the performance can be further enhanced by regularizing cross-instance cycle-consistency at intermediate feature levels. Experimental results on the PF-PASCAL, PF-WILLOW, and SPair-71k benchmark datasets demonstrate that our method performs favorably against the state-of-the-art approaches.
Year
DOI
Venue
2022
10.1007/s11263-022-01602-y
International Journal of Computer Vision
Keywords
DocType
Volume
Semantic Correspondence, Image-level Contrastive Learning, Pixel-level Contrastive Learning, Cross-instance Cycle Consistency
Journal
130
Issue
ISSN
Citations 
5
0920-5691
0
PageRank 
References 
Authors
0.34
5
6
Name
Order
Citations
PageRank
Taihong Xiao1103.30
Sifei Liu222717.54
Shalini Gupta329920.42
Zhiding Yu442130.08
Jan Kautz53615198.77
Yang Ming-Hsuan615303620.69