Classification constrained discriminator for domain adaptive semantic segmentation
- Publisher:
- IEEE
- Publication Type:
- Conference Proceeding
- Citation:
- Proceedings - IEEE International Conference on Multimedia and Expo, 2020, 2020-July, pp. 1-6
- Issue Date:
- 2020-07-01
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| Filename | Description | Size | |||
|---|---|---|---|---|---|
| 09102965.pdf | Published version | 1.54 MB |
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© 2020 IEEE. Unsupervised domain adaptation for semantic segmentation aims to transfer knowledge from label-rich synthetic datasets to real-world images without any annotation. The traditional adversarial learning methods for domain adaptation learn to extract domain-invariant feature representations by aligning the feature distributions of both domains. However, these methods suffer from an imbalance in adversarial training and feature distortion. In this work, we propose a classification constrained discriminator to alleviate these problems. Specifically, we first propose to balance the adversarial training by eliminating any pooling layers or strided convolutions in the discriminator. Then, we propose to constrain the discriminator with an auxiliary classification loss to help the feature generator extract the domain-invariant features that are useful for segmentation rather than just ambiguous features to fool the domain discriminator. Extensive experiments demonstrate the superiority of our proposed approach. The source code and models have been made available at https://github.com/NUSTMachine-Intelligence-Laboratory/ccd.
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