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NewsTencent Open Sources StereoCrafter: One-Click 2D to 3D Video Conversion

Tencent Open Sources StereoCrafter: One-Click 2D to 3D Video Conversion

StereoCrafter, jointly developed by Tencent AI Lab and ARC Lab, has been officially open-sourced. This innovative video processing framework can convert regular 2D videos into high-quality stereoscopic 3D videos, providing content creators and developers with a powerful tool. The project, completed by researchers including Sijie Zhao, Wenbo Hu, and Xiaodong Cun, demonstrates Tencent’s technical prowess in video processing and AI.

Key Features

StereoCrafter Model Effects

  • Multiple Format Support: Generates anaglyph 3D, VR format, or side-by-side stereoscopic videos for various scenarios
  • Wide Compatibility: Supports multiple 3D display devices, including 3D glasses, Apple Vision Pro, and 3D displays
  • Rich Application Scenarios: Suitable for movies, vlogs, 3D animation, and AI-generated videos
  • High-Quality Output: Based on diffusion models, capable of generating long-duration, high-fidelity stereoscopic effects
  • Automatic Processing: Handles input videos of different lengths and resolutions
  • Real-time Preview: Supports effect preview to ensure output quality

Technical Innovation

StereoCrafter employs an innovative framework based on diffusion models, with the entire process consisting of two main stages:

Stage One: Depth Estimation and Video Layering

  1. Estimating video depth information from monocular videos
  2. Processing through depth-based video layering technology
  3. Generating initial warped videos and occlusion masks

Stage Two: Stereoscopic Video Restoration

  1. Training specialized stereoscopic video restoration models
  2. Filling hole regions based on occlusion masks
  3. Generating final high-quality stereoscopic videos

This approach not only maintains video quality but also ensures natural and smooth 3D effects. The research team has also developed sophisticated data processing pipelines to reconstruct large-scale, high-quality datasets for training.

Practical Applications

StereoCrafter has a wide range of applications:

  1. Film Production

    • Converting classic 2D films to 3D
    • Video post-production enhancement
    • Real-time 3D conversion for live streaming

  2. Content Creation

    • 3D effect creation for vlogs and short videos
    • YouTube 3D content creation
    • Gaming footage 3D conversion

  3. Virtual Reality

    • VR device content adaptation
    • Apple Vision Pro video optimization
    • Metaverse content creation

  4. Education and Training

    • 3D educational video production
    • Virtual training materials
    • Medical imaging visualization

Technical Specifications

  • Input Support: Compatible with various common video formats
  • Resolution: Supports video processing up to 4K
  • Processing Duration: Can handle videos of any length
  • Output Formats:
    • Side-by-side 3D
    • Anaglyph 3D
    • Vision Pro specific format
    • Universal VR device format

Open Source Access

StereoCrafter is now open-sourced on the Hugging Face platform, accessible through:

Future Outlook

The release of this open-source project brings new possibilities to 3D content creation and immersive experiences. With the popularization of next-generation VR/AR devices like Apple Vision Pro, tools like StereoCrafter will play a crucial role in content ecosystem development. The project team plans to continue optimizing model performance, adding more features, and exploring additional application scenarios.

References