Domain-Rectifying Adapter for Cross-Domain Few-Shot Segmentation

• URL: http://arxiv.org/abs/2404.10322v1
• Date: Tue, 16 Apr 2024 07:07:40 GMT
• Title: Domain-Rectifying Adapter for Cross-Domain Few-Shot Segmentation
• Authors: Jiapeng Su, Qi Fan, Guangming Lu, Fanglin Chen, Wenjie Pei,
• Abstract summary: We propose a small adapter for rectifying diverse target domain styles to the source domain. The adapter is trained to rectify the image features from diverse synthesized target domains to align with the source domain. Our method achieves promising results on cross-domain few-shot semantic segmentation tasks.
• Score: 40.667166043101076
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Few-shot semantic segmentation (FSS) has achieved great success on segmenting objects of novel classes, supported by only a few annotated samples. However, existing FSS methods often underperform in the presence of domain shifts, especially when encountering new domain styles that are unseen during training. It is suboptimal to directly adapt or generalize the entire model to new domains in the few-shot scenario. Instead, our key idea is to adapt a small adapter for rectifying diverse target domain styles to the source domain. Consequently, the rectified target domain features can fittingly benefit from the well-optimized source domain segmentation model, which is intently trained on sufficient source domain data. Training domain-rectifying adapter requires sufficiently diverse target domains. We thus propose a novel local-global style perturbation method to simulate diverse potential target domains by perturbating the feature channel statistics of the individual images and collective statistics of the entire source domain, respectively. Additionally, we propose a cyclic domain alignment module to facilitate the adapter effectively rectifying domains using a reverse domain rectification supervision. The adapter is trained to rectify the image features from diverse synthesized target domains to align with the source domain. During testing on target domains, we start by rectifying the image features and then conduct few-shot segmentation on the domain-rectified features. Extensive experiments demonstrate the effectiveness of our method, achieving promising results on cross-domain few-shot semantic segmentation tasks. Our code is available at https://github.com/Matt-Su/DR-Adapter.

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