A high-resolution network exhibits remarkable capability in extracting multi-scale features for human pose estimation, but fails to capture long-range interactions between joints and has high computational complexity. To address these problems, we present a Dynamic lightweight High-Resolution Network (Dite-HRNet), which can efficiently extract multi-scale contextual information and model long-range spatial dependency for human pose estimation. Specifically, we propose two methods, dynamic split convolution and adaptive context modeling, and embed them into two novel lightweight blocks, which are named dynamic multi-scale context block and dynamic global context block. These two blocks, as the basic component units of our Dite-HRNet, are specially designed for the high-resolution networks to make full use of the parallel multi-resolution architecture. Experimental results show that the proposed network achieves superior performance on both COCO and MPII human pose estimation datasets, surpassing the state-of-the-art lightweight networks. Code is available at: \url{https://github.com/ZiyiZhang27/Dite-HRNet}.

通过在高分辨率网络中引入动态轻量化、多尺度上下文信息提取、长距离空间依赖建模的方法，本文提出了一种动态轻量化高分辨率网络模型（Dite-HRNet），该模型在 COCO 和 MPII 人体姿态估计数据集上取得了优异的表现，超越了现有的轻量化网络模型。

Dite-HRNet：用于人体姿态估计的动态轻量级高分辨率网络