Diffusion Domain Teacher: Diffusion Guided Domain Adaptive Object Detector

Fuente: arXiv
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Autori principali: He, Boyong, Ji, Yuxiang, Tan, Zhuoyue, Wu, Liaoni
Natura: Preprint
Pubblicazione: 2025
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author He, Boyong
Ji, Yuxiang
Tan, Zhuoyue
Wu, Liaoni
author_facet He, Boyong
Ji, Yuxiang
Tan, Zhuoyue
Wu, Liaoni
contents Object detectors often suffer a decrease in performance due to the large domain gap between the training data (source domain) and real-world data (target domain). Diffusion-based generative models have shown remarkable abilities in generating high-quality and diverse images, suggesting their potential for extracting valuable feature from various domains. To effectively leverage the cross-domain feature representation of diffusion models, in this paper, we train a detector with frozen-weight diffusion model on the source domain, then employ it as a teacher model to generate pseudo labels on the unlabeled target domain, which are used to guide the supervised learning of the student model on the target domain. We refer to this approach as Diffusion Domain Teacher (DDT). By employing this straightforward yet potent framework, we significantly improve cross-domain object detection performance without compromising the inference speed. Our method achieves an average mAP improvement of 21.2% compared to the baseline on 6 datasets from three common cross-domain detection benchmarks (Cross-Camera, Syn2Real, Real2Artistic}, surpassing the current state-of-the-art (SOTA) methods by an average of 5.7% mAP. Furthermore, extensive experiments demonstrate that our method consistently brings improvements even in more powerful and complex models, highlighting broadly applicable and effective domain adaptation capability of our DDT. The code is available at https://github.com/heboyong/Diffusion-Domain-Teacher.
format Preprint
id arxiv_https___arxiv_org_abs_2506_04211
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Diffusion Domain Teacher: Diffusion Guided Domain Adaptive Object Detector
He, Boyong
Ji, Yuxiang
Tan, Zhuoyue
Wu, Liaoni
Computer Vision and Pattern Recognition
Object detectors often suffer a decrease in performance due to the large domain gap between the training data (source domain) and real-world data (target domain). Diffusion-based generative models have shown remarkable abilities in generating high-quality and diverse images, suggesting their potential for extracting valuable feature from various domains. To effectively leverage the cross-domain feature representation of diffusion models, in this paper, we train a detector with frozen-weight diffusion model on the source domain, then employ it as a teacher model to generate pseudo labels on the unlabeled target domain, which are used to guide the supervised learning of the student model on the target domain. We refer to this approach as Diffusion Domain Teacher (DDT). By employing this straightforward yet potent framework, we significantly improve cross-domain object detection performance without compromising the inference speed. Our method achieves an average mAP improvement of 21.2% compared to the baseline on 6 datasets from three common cross-domain detection benchmarks (Cross-Camera, Syn2Real, Real2Artistic}, surpassing the current state-of-the-art (SOTA) methods by an average of 5.7% mAP. Furthermore, extensive experiments demonstrate that our method consistently brings improvements even in more powerful and complex models, highlighting broadly applicable and effective domain adaptation capability of our DDT. The code is available at https://github.com/heboyong/Diffusion-Domain-Teacher.
title Diffusion Domain Teacher: Diffusion Guided Domain Adaptive Object Detector
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2506.04211