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3D Grounding

Qwen3-VL introduces 3D grounding capabilities that provide accurate 3D bounding boxes for both indoor and outdoor objects. This advanced spatial perception enables applications in robotics, autonomous systems, AR/VR, and embodied AI.

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Capabilities

Qwen3-VL’s 3D grounding extends object localization into three dimensions:
  • 3D Bounding Boxes: Full volumetric object bounds
  • Indoor Scenes: Furniture, appliances, room elements
  • Outdoor Scenes: Vehicles, buildings, street furniture
  • Depth Estimation: Infer object distance and depth
  • Spatial Relationships: Understand 3D positioning between objects

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How It Works

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3D Coordinate System

3D bounding boxes are represented with:
  • Position: X, Y, Z coordinates in 3D space
  • Dimensions: Width, height, depth
  • Orientation: Rotation angles (pitch, yaw, roll)
This enables full spatial understanding of objects in the scene.

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Scene Understanding

The model analyzes:
  • Perspective and vanishing points
  • Occlusion and depth ordering
  • Relative object sizes
  • Scene geometry and structure

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Use Cases

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Robotics & Embodied AI

  • Navigation: Help robots understand 3D space for path planning
  • Manipulation: Guide robotic arms to grasp and move objects
  • Scene Understanding: Build 3D world models for robot operation

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Autonomous Systems

  • Self-driving Vehicles: Detect and track 3D positions of vehicles, pedestrians
  • Drones: Navigate complex 3D environments
  • Warehouse Automation: Locate and retrieve items in 3D space

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AR/VR Applications

  • Object Placement: Position virtual objects realistically in real scenes
  • Scene Reconstruction: Build 3D models from 2D images
  • Spatial Computing: Enable mixed reality interactions

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Architecture & Design

  • Space Planning: Analyze room dimensions and furniture placement
  • Construction: Measure and model building elements
  • Interior Design: Visualize furniture in 3D space

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Try It Out

Explore 3D grounding with our interactive cookbook:

3D Grounding Cookbook

Provide accurate 3D bounding boxes for both indoor and outdoor objects.
Open In Colab

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Key Features

  • Advanced Spatial Perception: Judge object positions, viewpoints, and occlusions
  • Indoor & Outdoor: Works in diverse environments
  • Multi-object Tracking: Track multiple objects in 3D space
  • Depth Reasoning: Infer relative distances and depths

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Technical Highlights

Qwen3-VL achieves 3D grounding through:
  • Monocular Depth Estimation: Infer depth from single images
  • Perspective Understanding: Analyze camera angle and field of view
  • Geometric Reasoning: Apply spatial constraints and relationships
  • Scene Context: Use surrounding objects to inform 3D understanding