DINOde: Continuous Vision-Text Alignment for Open-Vocabulary Semantic Segmentation

• URL: http://arxiv.org/abs/2607.21371v1
• Date: Thu, 23 Jul 2026 14:37:27 GMT
• Title: DINOde: Continuous Vision-Text Alignment for Open-Vocabulary Semantic Segmentation
• Abstract summary: We propose DINOde, an ODE-based framework that aligns CLIP text embeddings with the DINO visual manifold.<n>Our approach employs two complementary components: (i) Semantic Text Flow (STF), which evolves text embeddings toward the DINO manifold through a continuous ODE trajectory, and (ii) Global Context Flow (GCF), which refines the holistic image representation carried by DINO's CLS token.<n>By modeling alignment as a continuous trajectory, DINOde avoids the entanglement inherent in discrete projections and yields more robust cross-modal alignment.
• Score: 53.011370226020695
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Open-vocabulary semantic segmentation (OVSS) leverages textual semantics to segment objects beyond predefined categories. While the self-supervised model DINOv3 provides strong structured visual representations, its lack of native textual alignment hinders its direct application to OVSS. To bridge this gap, we propose DINOde, an ODE-based framework that continuously aligns CLIP text embeddings with the DINO visual manifold. Our approach employs two complementary components: (i) Semantic Text Flow (STF), which evolves text embeddings toward the DINO manifold through a continuous ODE trajectory, and (ii) Global Context Flow (GCF), which progressively refines the holistic image representation carried by DINO's CLS token. To preserve the hyperspherical geometry of the feature space during this evolution, we further introduce Velocity Tangent Projection, which constrains the learned velocity field to the tangent space. By modeling alignment as a continuous trajectory, DINOde avoids the manifold entanglement inherent in discrete MLP projections and yields more robust cross-modal alignment. Extensive experiments demonstrate that DINOde consistently outperforms existing methods and achieves state-of-the-art performance across multiple OVSS benchmarks. The code is available at https://github.com/yoon307/DINOde.

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