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We introduce HYPERPOSE, a novel 3D human pose estimation framework that performs spatio-temporal reasoning entirely within the Lorentz model of hyperbolic space $\mathbb{H}^d$ to natively preserve the hierarchical tree topology of the human…

Computer Vision and Pattern Recognition · Computer Science 2026-05-18 Vinduja Thekkath , Ashish Musale , Ajay Waghumbare , Upasna Singh

Three-dimensional (3D) human pose estimation using a monocular camera has gained increasing attention due to its ease of implementation and the abundance of data available from daily life. However, owing to the inherent depth ambiguity in…

Computer Vision and Pattern Recognition · Computer Science 2024-01-09 Danqi Yan , Qing Gao , Yuepeng Qian , Xinxing Chen , Chenglong Fu , Yuquan Leng

Monocular 3D human pose estimation is quite challenging due to the inherent ambiguity and occlusion, which often lead to high uncertainty and indeterminacy. On the other hand, diffusion models have recently emerged as an effective tool for…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Jia Gong , Lin Geng Foo , Zhipeng Fan , Qiuhong Ke , Hossein Rahmani , Jun Liu

Most of the previous 3D human pose estimation work relied on the powerful memory capability of the network to obtain suitable 2D-3D mappings from the training data. Few works have studied the modeling of human posture deformation in motion.…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Haorui Ji , Hui Deng , Yuchao Dai , Hongdong Li

Depth ambiguity and joint uncertainty are the two main obstacles in obtaining accurate human pose predictions by 2D-to-3D lifting methods proposed in the literature. In particular, these issues are caused by 2D joint locations that can be…

Computer Vision and Pattern Recognition · Computer Science 2026-04-30 Alessandro Simoni , Riccardo Catalini , Davide Di Nucci , Guido Borghi , Davide Davoli , Lorenzo Garattoni , Gianpiero Francesca , Yuki Kawana , Roberto Vezzani

Hand pose estimation from a single image has many applications. However, approaches to full 3D body pose estimation are typically trained on day-to-day activities or actions. As such, detailed hand-to-hand interactions are poorly…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Maksym Ivashechkin , Oscar Mendez , Richard Bowden

Learning a good 3D human pose representation is important for human pose related tasks, e.g. human 3D pose estimation and action recognition. Within all these problems, preserving the intrinsic pose information and adapting to view…

Computer Vision and Pattern Recognition · Computer Science 2021-11-03 Qiang Nie , Ziwei Liu , Yunhui Liu

3D human pose lifting from a single RGB image is a challenging task in 3D vision. Existing methods typically establish a direct joint-to-joint mapping from 2D to 3D poses based on 2D features. This formulation suffers from two fundamental…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Jinghong Zheng , Changlong Jiang , Yang Xiao , Jiaqi Li , Haohong Kuang , Hang Xu , Ran Wang , Zhiguo Cao , Min Du , Joey Tianyi Zhou

In this work, we propose a new solution to 3D human pose estimation in videos. Instead of directly regressing the 3D joint locations, we draw inspiration from the human skeleton anatomy and decompose the task into bone direction prediction…

Computer Vision and Pattern Recognition · Computer Science 2021-01-27 Tianlang Chen , Chen Fang , Xiaohui Shen , Yiheng Zhu , Zhili Chen , Jiebo Luo

3D human pose estimation from 2D images is a challenging problem due to depth ambiguity and occlusion. Because of these challenges the task is underdetermined, where there exists multiple -- possibly infinite -- poses that are plausible…

Computer Vision and Pattern Recognition · Computer Science 2026-02-04 Francis Snelgar , Ming Xu , Stephen Gould , Liang Zheng , Akshay Asthana

3D human pose estimation has wide applications in fields such as intelligent surveillance, motion capture, and virtual reality. However, in real-world scenarios, issues such as occlusion, noise interference, and missing viewpoints can…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Jianbin Jiao , Xina Cheng , Kailun Yang , Xiangrong Zhang , Licheng Jiao

Traditional methods for human localization and pose estimation (HPE), which mainly rely on RGB images as an input modality, confront substantial limitations in real-world applications due to privacy concerns. In contrast, radar-based HPE…

Computer Vision and Pattern Recognition · Computer Science 2024-07-22 Yuan-Hao Ho , Jen-Hao Cheng , Sheng Yao Kuan , Zhongyu Jiang , Wenhao Chai , Hsiang-Wei Huang , Chih-Lung Lin , Jenq-Neng Hwang

Transformer-based approaches have been successfully proposed for 3D human pose estimation (HPE) from 2D pose sequence and achieved state-of-the-art (SOTA) performance. However, current SOTAs have difficulties in modeling spatial-temporal…

Computer Vision and Pattern Recognition · Computer Science 2023-01-19 Xiaoye Qian , Youbao Tang , Ning Zhang , Mei Han , Jing Xiao , Ming-Chun Huang , Ruei-Sung Lin

Human bodies exhibit various shapes for different identities or poses, but the body shape has certain similarities in structure and thus can be embedded in a low-dimensional space. This paper presents an autoencoder-like network…

Computer Vision and Pattern Recognition · Computer Science 2020-04-20 Boyi Jiang , Juyong Zhang , Jianfei Cai , Jianmin Zheng

We tackle the problem of Human Mesh Recovery (HMR) from a single RGB image, formulating it as an image-conditioned human pose and shape generation. While recovering 3D human pose from 2D observations is inherently ambiguous, most existing…

Computer Vision and Pattern Recognition · Computer Science 2025-10-01 Donghwan Kim , Tae-Kyun Kim

Current approaches in 3D human pose estimation primarily focus on regressing 3D joint locations, often neglecting critical physical constraints such as bone length consistency and body symmetry. This work introduces a recurrent neural…

Computer Vision and Pattern Recognition · Computer Science 2024-10-30 Chih-Hsiang Hsu , Jyh-Shing Roger Jang

In general, human pose estimation methods are categorized into two approaches according to their architectures: regression (i.e., heatmap-free) and heatmap-based methods. The former one directly estimates precise coordinates of each…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Jonghyun Kim , Bosang Kim , Hyotae Lee , Jungpyo Kim , Wonhyeok Im , Lanying Jin , Dowoo Kwon , Jungho Lee

As 3D human pose estimation can now be achieved with very high accuracy in the supervised learning scenario, tackling the case where 3D pose annotations are not available has received increasing attention. In particular, several methods…

Computer Vision and Pattern Recognition · Computer Science 2023-09-22 Krishna Kanth Nakka , Mathieu Salzmann

This paper addresses the problem of 3D human body shape and pose estimation from an RGB image. This is often an ill-posed problem, since multiple plausible 3D bodies may match the visual evidence present in the input - particularly when the…

Computer Vision and Pattern Recognition · Computer Science 2022-11-24 Akash Sengupta , Ignas Budvytis , Roberto Cipolla

3D human pose estimation errors would propagate along the human body topology and accumulate at the end joints of limbs. Inspired by the backtracking mechanism in automatic control systems, we design an Intra-Part Constraint module that…

Computer Vision and Pattern Recognition · Computer Science 2023-02-21 Jialun Cai , Hong Liu , Runwei Ding , Wenhao Li , Jianbing Wu , Miaoju Ban