We consider the problem of estimating a parametric model of 3D human mesh from a single image. While there has been substantial recent progress in this area with direct regression of model parameters, these methods only implicitly exploit the human body kinematic structure, leading to sub-optimal use of the model prior. In this work, we address this gap by proposing a new technique for regression of human parametric model that is explicitly informed by the known hierarchical structure, including joint interdependencies of the model. This results in a strong prior-informed design of the regressor architecture and an associated hierarchical optimization that is flexible to be used in conjunction with the current standard frameworks for 3D human mesh recovery. We demonstrate these aspects by means of extensive experiments on standard benchmark datasets, showing how our proposed new design outperforms several existing and popular methods, establishing new state-of-the-art results. With our explicit consideration of joint interdependencies, our proposed method is equipped to infer joints even under data corruptions, which we demonstrate with experiments under varying degrees of occlusion.

提出了一种基于已知层次结构的人体参数化模型回归新技术，旨在更加灵活应用于当前标准的三维人体网格恢复框架，并通过实验数据证明其性能优于现有方法，能在数据损坏下推断关节。

分层运动学人类网格恢复