

Exavatar
Overview :
ExAvatar is a new type of full-body dynamic expression model that combines the full-body driving capabilities of SMPL-X with the strong appearance modeling of 3DGS. It creates models through simple smartphone scanning and supports animation rendering for various poses and expressions. Its hybrid representation method enhances the naturalness of facial expressions, reduces artifacts for new expressions and poses, and ensures complete compatibility with the facial expression space of SMPL-X.
Target Users :
ExAvatar's target audience includes 3D animators, game developers, VFX artists, and other professionals who require high-quality dynamic character models. It offers a fast and convenient way to create realistic 3D character models suitable for animation production, game design, and virtual reality applications.
Use Cases
3D model demonstration of Jungkook (BTS) performing the dance move 'Standing Next To You'.
3D model demonstration of aespa performing the dance move 'Supernova'.
3D model demonstration of Michael Jackson performing the dance move 'Smooth Criminal'.
Features
Supports dynamic driving of the entire body (including hands and face).
Fully compatible with SMPL-X's facial expression space through a hybrid representation method.
Significantly reduces artifacts for new expressions and poses using a connectivity-based regularizer.
Enhances expressiveness of hands and face through joint and facial offsets.
Processes three-plane features using MLP and generates animatable 3D models in conjunction with a regularized mesh.
Utilizes LBS algorithm for animation and employs 3DGS technology for rendering.
How to Use
1. Prepare a smartphone and the subject to be captured.
2. Use the smartphone to record the subject in a neutral pose for about 10 seconds.
3. Upload the recorded video to the ExAvatar system.
4. The system will automatically recognize and generate a 3D model.
5. Adjust the model's pose and expressions as needed.
6. Utilize ExAvatar's animation and rendering tools to complete the final 3D animation.
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