Enhanced keypoint information and pose-weighted re-ID features for multi-person pose estimation and tracking

Multi-person pose estimation and tracking are crucial research directions in the field of artificial intelligence, with widespread applications in virtual reality, action recognition, and human-computer interaction. While existing pose tracking algorithms predominantly follow the top-down paradigm, they face challenges, such as pose occlusion and motion blur in complex scenes, leading to tracking inaccuracies. To address these challenges, we leverage enhanced keypoint information and pose-weighted re-identification (re-ID) features to improve the performance of multi-person pose estimation and tracking. Specifically, our proposed Decouple Heatmap Network decouples heatmaps into keypoint confidence and position. The refined keypoint information are utilized to reconstruct occluded poses. For the pose tracking task, we introduce a more efficient pipeline founded on pose-weighted re-ID features. This pipeline integrates a Pose Embedding Network to allocate weights to re-ID features and achieves the final pose tracking through a novel tracking matching algorithm. Extensive experiments indicate that our approach performs well in both multi-person pose estimation and tracking and achieves state-of-the-art results on the PoseTrack 2017 and 2018 datasets. Our source code is available at: https://github.com/TaoTaoPei/posetracking.