协助人们高效地制作视觉逼真的三维角色一直是计算机视觉和计算机图形学中的热门研究。近年来，基于学习的方法在三维真实人物数字化领域取得了前所未有的精度和效率。然而，先前的研究并没有关注建模三维二足卡通角色，而这在游戏和电影制作中也非常有需求。本文介绍3DBiCar，第一个大规模的三维二足卡通角色数据集和相应的参数模型RaBit。3DBiCar数据集包含1,500个由专业艺术家手工制作的拓扑一致、质量高、有贴图的角色模型。基于这些数据，RaBit采用了类似SMPL的线性混合形状模型和基于StyleGAN的纹理生成器，同时表达形状、姿势和纹理。为了展示3DBiCar和RaBit的实用性，作者进行了包括单视图重建、基于草图的建模和三维卡通动画的多种应用。在单视图重建中，作者发现从输入图像到输出基于UV的纹理图往往会丢失局部细节表现（如鼻子、耳朵）。
标题：RaBit: Parametric Modeling of 3D Biped Cartoon Characters with a Topological-consistent Dataset
论文：https://gaplab.cuhk.edu.cn/projects/RaBit/assets/paper/RaBit.pdf
项目：https://gaplab.cuhk.edu.cn/projects/RaBit/
作者：Zhongjin Luo，Shengcai Cai，Jinguo Dong，Ruibo Ming，Liangdong Qiu，Xiaohang Zhan， Xiaoguang Han
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