Language-Guided Instance-Aware Domain-Adaptive Panoptic Segmentation

• URL: http://arxiv.org/abs/2404.03799v1
• Date: Thu, 4 Apr 2024 20:42:49 GMT
• Title: Language-Guided Instance-Aware Domain-Adaptive Panoptic Segmentation
• Authors: Elham Amin Mansour, Ozan Unal, Suman Saha, Benjamin Bejar, Luc Van Gool,
• Abstract summary: Key challenge in panoptic domain adaptation is reducing the domain gap between a labeled source and an unlabeled target domain. We focus on incorporating instance-level adaptation via a novel cross-domain mixing strategy IMix. We present an end-to-end model incorporating these two mechanisms called LIDAPS, achieving state-of-the-art results on all popular panoptic UDA benchmarks.
• Score: 44.501770535446624
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The increasing relevance of panoptic segmentation is tied to the advancements in autonomous driving and AR/VR applications. However, the deployment of such models has been limited due to the expensive nature of dense data annotation, giving rise to unsupervised domain adaptation (UDA). A key challenge in panoptic UDA is reducing the domain gap between a labeled source and an unlabeled target domain while harmonizing the subtasks of semantic and instance segmentation to limit catastrophic interference. While considerable progress has been achieved, existing approaches mainly focus on the adaptation of semantic segmentation. In this work, we focus on incorporating instance-level adaptation via a novel instance-aware cross-domain mixing strategy IMix. IMix significantly enhances the panoptic quality by improving instance segmentation performance. Specifically, we propose inserting high-confidence predicted instances from the target domain onto source images, retaining the exhaustiveness of the resulting pseudo-labels while reducing the injected confirmation bias. Nevertheless, such an enhancement comes at the cost of degraded semantic performance, attributed to catastrophic forgetting. To mitigate this issue, we regularize our semantic branch by employing CLIP-based domain alignment (CDA), exploiting the domain-robustness of natural language prompts. Finally, we present an end-to-end model incorporating these two mechanisms called LIDAPS, achieving state-of-the-art results on all popular panoptic UDA benchmarks.

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