Top-Down System for Multi-Person 3D Absolute Pose Estimation from Monocular Videos

TitreTop-Down System for Multi-Person 3D Absolute Pose Estimation from Monocular Videos
Publication TypeJournal Article
Year of Publication2022
AuthorsA. Kaid, E, Brazey, D, Barra, V, Baina, K
JournalSensors
Volume22
Mots-clés3d multi-person pose estimation, Absolute pose, algorithm, Algorithms, Camera-centric coordinate, Cameras, Computer vision, Deep learning, Deep-learning, human, Humans, Imaging, Monocular video, Pose-estimation, procedures, Real- time, Relative pose, Three-Dimensional, Three-dimensional imaging, Topdown, Two-dimensional
Abstract

Two-dimensional (2D) multi-person pose estimation and three-dimensional (3D) root-relative pose estimation from a monocular RGB camera have made significant progress recently. Yet, real-world applications require depth estimations and the ability to determine the distances between people in a scene. Therefore, it is necessary to recover the 3D absolute poses of several people. However, this is still a challenge when using cameras from single points of view. Furthermore, the previously proposed systems typically required a significant amount of resources and memory. To overcome these restrictions, we herein propose a real-time framework for multi-person 3D absolute pose estimation from a monocular camera, which integrates a human detector, a 2D pose estimator, a 3D root-relative pose reconstructor, and a root depth estimator in a top-down manner. The proposed system, called Root-GAST-Net, is based on modified versions of GAST-Net and RootNet networks. The efficiency of the proposed Root-GAST-Net system is demonstrated through quantitative and qualitative evaluations on two benchmark datasets, Human3.6M and MuPoTS-3D. On all evaluated metrics, our experimental results on the MuPoTS-3D dataset outperform the current state-of-the-art by a significant margin, and can run in real-time at 15 fps on the Nvidia GeForce GTX 1080. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85130790166&doi=10.3390%2fs22114109&partnerID=40&md5=7009c9053fd9d12efcd40ade931932f7
DOI10.3390/s22114109
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