OpenDAS: Open-Vocabulary Domain Adaptation for 2D and 3D Segmentation

• URL: http://arxiv.org/abs/2405.20141v4
• Date: Tue, 29 Oct 2024 23:03:34 GMT
• Title: OpenDAS: Open-Vocabulary Domain Adaptation for 2D and 3D Segmentation
• Authors: Gonca Yilmaz, Songyou Peng, Marc Pollefeys, Francis Engelmann, Hermann Blum,
• Abstract summary: We propose the task of open-vocabulary domain adaptation to infuse domain-specific knowledge into Vision-Language Models (VLMs) Existing VLM adaptation methods improve performance on base (training) queries, but fail to preserve the open-set capabilities of VLMs on novel queries. Our approach is the only parameter-efficient method that consistently surpasses the original VLM on novel classes.
• Score: 54.98688607911399
• License:
• Abstract: Recently, Vision-Language Models (VLMs) have advanced segmentation techniques by shifting from the traditional segmentation of a closed-set of predefined object classes to open-vocabulary segmentation (OVS), allowing users to segment novel classes and concepts unseen during training of the segmentation model. However, this flexibility comes with a trade-off: fully-supervised closed-set methods still outperform OVS methods on base classes, that is on classes on which they have been explicitly trained. This is due to the lack of pixel-aligned training masks for VLMs (which are trained on image-caption pairs), and the absence of domain-specific knowledge, such as autonomous driving. Therefore, we propose the task of open-vocabulary domain adaptation to infuse domain-specific knowledge into VLMs while preserving their open-vocabulary nature. By doing so, we achieve improved performance in base and novel classes. Existing VLM adaptation methods improve performance on base (training) queries, but fail to fully preserve the open-set capabilities of VLMs on novel queries. To address this shortcoming, we combine parameter-efficient prompt tuning with a triplet-loss-based training strategy that uses auxiliary negative queries. Notably, our approach is the only parameter-efficient method that consistently surpasses the original VLM on novel classes. Our adapted VLMs can seamlessly be integrated into existing OVS pipelines, e.g., improving OVSeg by +6.0% mIoU on ADE20K for open-vocabulary 2D segmentation, and OpenMask3D by +4.1% AP on ScanNet++ Offices for open-vocabulary 3D instance segmentation without other changes. The project page is available at https://open-das.github.io/.

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