Title
Domain Adaptative Semantic Segmentation by alleviating Long-tail Problem
Abstract
The domain adaptive method based on the adversarial network can be effectively applied to unsupervised semantic segmentation tasks. State-of-the-art approaches have proved that domain alignment at the semantic level can improve segmentation networks' performance. Based on data observation between different domains, we find that the long-tail problem exists in these datasets. We propose a two-level class balancing model to alleviate the semantic class imbalance of data to address this problem. Specifically, we count the category frequencies in the datasets and treat this frequency information as mutual information. Then, we feed this mutual information to the cross-entropy method for fitting so that the model can alleviate the long-tail problem globally. Besides, we resample the data in the model's training process by using two classifiers to balance the head class and the tail class locally. Finally, we use self-supervised learning to supervise the target domain's alignment and the source domain, thus achieving further improvement. We conduct experiments on the benchmark of mainstream unsupervised domain adaptive semantic segmentation tasks, and the experimental results show that our proposed method is effective.
Year
DOI
Venue
2021
10.1109/IJCNN52387.2021.9533948
2021 INTERNATIONAL JOINT CONFERENCE ON NEURAL NETWORKS (IJCNN)
Keywords
DocType
ISSN
Domain Adaptation, Semantic Segmentation, Adversarial Network, Unsupervised Learning, Long-tail Problem
Conference
2161-4393
Citations 
PageRank 
References 
0
0.34
0
Authors
2
Name
Order
Citations
PageRank
Wei Li100.68
Zhixin Li21219.62