用重心坐标法实现面部纹理快速迁移，提升XR虚拟形象个性化体验。
Fast Texture Transfer for XR Avatars via Barycentric UV Conversion
- 通过重心坐标预计算UV映射，单次操作完成纹理转移。
- 相比基线方法提速7000倍以上，且消除边界伪影。
- 适合需要高效个性化的沉浸式XR应用开发人员使用。
我们提出一种快速高效的面部纹理迁移方法，用于SMPL-X基础的全身虚拟形象。与传统仿射变换方法相比，该方法采用重心坐标UV转换技术，预先将整个UV映射转化为单一变换矩阵，实现单次操作完成纹理转移。相比基线方法，速度提升超过7000倍，同时显著改善最终纹理质量，消除边界伪影。通过定量和定性评估，证明该方法为沉浸式XR应用中的个性化提供了实用解决方案。代码已公开。
原文摘要 · Abstract (English)
We present a fast and efficient method for transferring facial textures onto SMPL-X-based full-body avatars. Unlike conventional affine-transform methods that are slow and prone to visual artifacts, our method utilizes a barycentric UV conversion technique. Our approach precomputes the entire UV mapping into a single transformation matrix, enabling texture transfer in a single operation. This results in a speedup of over 7000x compared to the baseline, while also significantly improving the final texture quality by eliminating boundary artifacts. Through quantitative and qualitative evaluations, we demonstrate that our method offers a practical solution for personalization in immersive XR applications. The code is available online.
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