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Updated: Sep 11, 2025

High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
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Surfel-Based Gaussian Inverse Rendering for Fast and Relightable Dynamic Human Reconstruction From Monocular Videos.

Yiqun Zhao, Chenming Wu, Binbin Huang

    IEEE Transactions on Pattern Analysis and Machine Intelligence
    |August 14, 2025
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    Summary
    This summary is machine-generated.

    This study introduces Surfel-based Gaussian Inverse Avatar (SGIA) for efficient, dynamic human avatar reconstruction. SGIA enables realistic relighting and pose manipulation of clothed avatars under various lighting conditions.

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    Area of Science:

    • Computer Vision
    • Computer Graphics
    • 3D Reconstruction

    Background:

    • Dynamic human avatar reconstruction is vital for the entertainment industry.
    • Existing methods struggle with accurate relighting and efficient rendering of clothed avatars.

    Purpose of the Study:

    • To develop an efficient and accurate method for reconstructing relightable, dynamic clothed human avatars from monocular video.
    • To enhance the realism and controllability of dynamic human avatars for novel applications.

    Main Methods:

    • Introduced Surfel-based Gaussian Inverse Avatar (SGIA) for efficient training and rendering.
    • Integrated Physically-Based Rendering (PBR) properties and pre-integration with image-based lighting.
    • Proposed an occlusion approximation strategy and progressive training for material disentanglement and geometry accuracy.

    Main Results:

    • SGIA achieves highly accurate physical properties for dynamic human avatars.
    • Demonstrated significantly enhanced realistic relighting capabilities.
    • Provided a substantial speed advantage over existing implicit-based techniques.

    Conclusions:

    • SGIA offers an efficient and accurate solution for dynamic clothed human avatar reconstruction.
    • The method enables realistic relighting and pose manipulation under diverse conditions.
    • SGIA represents a significant advancement in real-time 3D human avatar technology.