Title
Self-supervision & meta-learning for one-shot unsupervised cross-domain detection
Abstract
Deep detection approaches are powerful in controlled conditions, but appear brittle and fail when source models are used off-the-shelf on unseen domains. Most of the existing works on domain adaptation simplify the setting and access jointly both a large source dataset and a sizable amount of target samples. However this scenario is unrealistic in many practical cases as when monitoring image feeds from social media: only a pretrained source model is available and every target image uploaded by the users belongs to a different domain not foreseen during training. We address this challenging setting by presenting an object detection algorithm able to exploit a pre-trained source model and perform unsupervised adaptation by using only one target sample seen at test time. Our multi-task architecture includes a self-supervised branch that we exploit to meta-train the whole model with single-sample cross-domain episodes, and prepare to the test condition. At deployment time the self-supervised task is iteratively solved on any incoming sample to one-shot adapt on it. We introduce a new dataset of social media image feeds and present a thorough benchmark with the most recent cross-domain detection methods showing the advantages of our approach.
Year
DOI
Venue
2022
10.1016/j.cviu.2022.103549
Computer Vision and Image Understanding
Keywords
DocType
Volume
68T01,68T05,68T10,68T45
Journal
223
ISSN
Citations 
PageRank 
1077-3142
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
F. Cappio Borlino100.34
S. Polizzotto200.34
Barbara Caputo33298201.26
Tatiana Tommasi450229.31