InternScenes: A Large-scale Simulatable Indoor Scene Dataset with Realistic Layouts

arXiv cs.RO / 4/29/2026

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Key Points

  • The paper introduces InternScenes, a new large-scale indoor 3D scene dataset designed to support Embodied AI with more diversity and more realistic layouts than existing datasets.
  • InternScenes reportedly contains about 40,000 diverse scenes, totaling 1.96M 3D objects across 15 scene types and 288 object classes, with an emphasis on preserving many small items and reducing unrealistic omissions.
  • The dataset includes a full processing pipeline that produces real-to-sim replicas for real-world scans, adds interactive objects to improve interactivity, and uses physical simulation to resolve object collisions.
  • The authors validate the dataset via two benchmarks—scene layout generation and point-goal navigation—and show that the more complex, realistic layouts create new challenges and enable scaling model training.
  • The team plans to open-source the dataset, models, and benchmarks to support broader community research and development.

Abstract

The advancement of Embodied AI heavily relies on large-scale, simulatable 3D scene datasets characterized by scene diversity and realistic layouts. However, existing datasets typically suffer from limitations in data scale or diversity, sanitized layouts lacking small items, and severe object collisions. To address these shortcomings, we introduce \textbf{InternScenes}, a novel large-scale simulatable indoor scene dataset comprising approximately 40,000 diverse scenes by integrating three disparate scene sources, real-world scans, procedurally generated scenes, and designer-created scenes, including 1.96M 3D objects and covering 15 common scene types and 288 object classes. We particularly preserve massive small items in the scenes, resulting in realistic and complex layouts with an average of 41.5 objects per region. Our comprehensive data processing pipeline ensures simulatability by creating real-to-sim replicas for real-world scans, enhances interactivity by incorporating interactive objects into these scenes, and resolves object collisions by physical simulations. We demonstrate the value of InternScenes with two benchmark applications: scene layout generation and point-goal navigation. Both show the new challenges posed by the complex and realistic layouts. More importantly, InternScenes paves the way for scaling up the model training for both tasks, making the generation and navigation in such complex scenes possible. We commit to open-sourcing the data, models, and benchmarks to benefit the whole community.