Vision-Language-Guided Diffusion Fusion for Open-Vocabulary Multimodal Scene Understanding and Semantic Segmentation

Authors

  • Juhani Elofsson School of Information Technology, University of Cincinnati, Cincinnati, OH, USA. Author
  • Mike Fuentes Department of Computer Science, University of Central Florida, Orlando, FL, USA. Author
  • Helfried Karge School of Computing, Clemson University, Clemson, SC, USA. Author

Keywords:

Open-vocabulary segmentation, diffusion models, vision-language models, multimodal fusion, semantic scene understanding, socio-technical systems, robustness, fairness, governance, sustainable artificial intelligence

Abstract

Open-vocabulary multimodal scene understanding requires systems that can interpret visual environments beyond fixed label sets while remaining robust, governable, and deployable across heterogeneous infrastructures. Recent advances in vision-language representation learning and diffusion-based generative modeling create new opportunities for semantic segmentation, particularly when textual prompts, visual observations, and sensor fusion are combined within a shared inference architecture. This paper examines vision-language-guided diffusion fusion as a system-level paradigm for open-vocabulary segmentation and scene understanding. Rather than treating diffusion solely as an image synthesis mechanism, the discussion positions it as a denoising and fusion substrate that integrates language-conditioned semantics, multimodal sensor evidence, and structural priors. The paper analyzes architectural trade-offs among modular pipelines, end-to-end models, edge-cloud partitioning, and foundation-model reuse. It further considers robustness under sensor degradation and domain shift, fairness in multilingual and cross-geographic deployment, governance through documentation and auditability, and sustainability implications of iterative inference. Case illustrations from autonomous driving, robotics, medical imaging, and disaster response demonstrate that technical accuracy alone is insufficient for responsible adoption. The central argument is that open-vocabulary segmentation systems must be designed as socio-technical infrastructures in which model capability, data provenance, operational constraints, and policy mechanisms are jointly optimized. The paper concludes by outlining evaluation practices and governance pathways that can support reliable, equitable, and sustainable deployment of vision-language-guided diffusion fusion systems.

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Published

2026-11-08 — Updated on 2026-10-09