Computer Science > Computer Vision and Pattern Recognition
arXiv:2603.09466 (cs)
[Submitted on 10 Mar 2026]
Title:TopoOR: A Unified Topological Scene Representation for the Operating Room
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Abstract:Surgical Scene Graphs abstract the complexity of surgical operating rooms (OR) into a structure of entities and their relations, but existing paradigms suffer from strictly dyadic structural limitations. Frameworks that predominantly rely on pairwise message passing or tokenized sequences flatten the manifold geometry inherent to relational structures and lose structure in the process. We introduce TopoOR, a new paradigm that models multimodal operating rooms as a higher-order structure, innately preserving pairwise and group relationships. By lifting interactions between entities into higher-order topological cells, TopoOR natively models complex dynamics and multimodality present in the OR. This topological representation subsumes traditional scene graphs, thereby offering strictly greater expressivity. We also propose a higher-order attention mechanism that explicitly preserves manifold structure and modality-specific features throughout hierarchical relational attention. In this way, we circumvent combining 3D geometry, audio, and robot kinematics into a single joint latent representation, preserving the precise multimodal structure required for safety-critical reasoning, unlike existing methods. Extensive experiments demonstrate that our approach outperforms traditional graph and LLM-based baselines across sterility breach detection, robot phase prediction, and next-action anticipation
| Subjects: | Computer Vision and Pattern Recognition (cs.CV) |
| Cite as: | arXiv:2603.09466 [cs.CV] |
| (or arXiv:2603.09466v1 [cs.CV] for this version) | |
| https://doi.org/10.48550/arXiv.2603.09466
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From: Tony Danjun Wang [view email][v1] Tue, 10 Mar 2026 10:19:42 UTC (4,192 KB)
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View a PDF of the paper titled TopoOR: A Unified Topological Scene Representation for the Operating Room, by Tony Danjun Wang and 4 other authors
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