We propose a novel framework for 3D hand shape reconstruction and hand-object
grasp optimization from a single RGB image. The representation of hand-object
contact regions is critical for accurate reconstructions. Instead of
approximating the contact regions with sparse points, as in previous works, we
propose a dense representation in the form of a UV coordinate map. Furthermore,
we introduce inference-time optimization to fine-tune the grasp and improve
interactions between the hand and the object. Our pipeline increases hand shape
reconstruction accuracy and produces a vibrant hand texture. Experiments on
datasets such as Ho3D, FreiHAND, and DexYCB reveal that our proposed method
outperforms the state-of-the-art.

使用单个 RGB 图像提出一种新的框架，实现了 3D 手部形状重构和手 - 物体抓握优化，通过 UV 坐标映射的密集表示方法替代了以往稀疏点的接触区域近似，同时引入了推理时间优化来微调抓握，实现了更好的手部形状重构准确性和质感。在 Ho3D，FreiHAND 和 DexYCB 等数据集上进行的实验表明，我们的方法优于现有技术。