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ScanRefer: 3D Object Localization in RGB-D Scans using Natural Language

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arxiv 1912.08830 v3 pith:XQKEW37V submitted 2019-12-18 cs.CV cs.CLcs.LGeess.IV

classification cs.CVcs.CLcs.LGeess.IV
keywords objectlanguagescanreferlocalizationnaturaldescriptionsdescriptorfused
verification ladder T0 review T1 audit T2 compute T3 formal

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We introduce the task of 3D object localization in RGB-D scans using natural language descriptions. As input, we assume a point cloud of a scanned 3D scene along with a free-form description of a specified target object. To address this task, we propose ScanRefer, learning a fused descriptor from 3D object proposals and encoded sentence embeddings. This fused descriptor correlates language expressions with geometric features, enabling regression of the 3D bounding box of a target object. We also introduce the ScanRefer dataset, containing 51,583 descriptions of 11,046 objects from 800 ScanNet scenes. ScanRefer is the first large-scale effort to perform object localization via natural language expression directly in 3D.

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Forward citations

Cited by 7 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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    A benchmark that scores vision-language models by reconstructing the 3D scene behind an image as executable Blender code finds the models fail mainly on spatial precision, not tool usage.

  4. PointArena: Probing Multimodal Grounding Through Language-Guided Pointing

    cs.CV 2025-05 conditional novelty 6.0 of 10

    A three-stage benchmark consisting of 982 pointing tasks, a live pairwise arena with 4,500 votes, and a robot manipulation study shows that pointing-supervised open models such as Molmo-72B can match proprietary model...

  5. ViGiL3D: A Linguistically Diverse Dataset for 3D Visual Grounding

    cs.CV 2025-01 conditional novelty 6.0 of 10

    ViGiL3D is a 350-prompt diagnostic dataset showing that existing 3D visual grounding models lose 20 or more points on linguistically diverse prompts compared to ScanRefer.

  6. Embodied Spatial Intelligence: from Implicit Scene Modeling to Spatial Reasoning

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    The thesis demonstrates that combining implicit 3D scene representations with LLM-based reasoning, using text as an interface, yields strong performance on robotic perception and spatial language tasks.

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