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Existing 3D human pose estimation models suffer performance drop when applying to new scenarios with unseen poses due to their limited generalizability. In this work, we propose a novel framework, Inference Stage Optimization (ISO), for…

Computer Vision and Pattern Recognition · Computer Science 2020-07-07 Jianfeng Zhang , Xuecheng Nie , Jiashi Feng

Automatic perception of human behaviors during social interactions is crucial for AR/VR applications, and an essential component is estimation of plausible 3D human pose and shape of our social partners from the egocentric view. One of the…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Siwei Zhang , Qianli Ma , Yan Zhang , Sadegh Aliakbarian , Darren Cosker , Siyu Tang

Human pose estimation aims to locate the human body parts and build human body representation (e.g., body skeleton) from input data such as images and videos. It has drawn increasing attention during the past decade and has been utilized in…

Computer Vision and Pattern Recognition · Computer Science 2023-07-06 Ce Zheng , Wenhan Wu , Chen Chen , Taojiannan Yang , Sijie Zhu , Ju Shen , Nasser Kehtarnavaz , Mubarak Shah

Camera captured human pose is an outcome of several sources of variation. Performance of supervised 3D pose estimation approaches comes at the cost of dispensing with variations, such as shape and appearance, that may be useful for solving…

Computer Vision and Pattern Recognition · Computer Science 2020-04-10 Jogendra Nath Kundu , Siddharth Seth , Varun Jampani , Mugalodi Rakesh , R. Venkatesh Babu , Anirban Chakraborty

Acquiring labeled datasets for 3D human mesh estimation is challenging due to depth ambiguities and the inherent difficulty of annotating 3D geometry from monocular images. Existing datasets are either real, with manually annotated 3D…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Lorenza Prospero , Orest Kupyn , Ostap Viniavskyi , João F. Henriques , Christian Rupprecht

In this paper, a novel deep-learning based framework is proposed to infer 3D human poses from a single image. Specifically, a two-phase approach is developed. We firstly utilize a generator with two branches for the extraction of explicit…

Computer Vision and Pattern Recognition · Computer Science 2018-09-24 Kun Zhou , Jinmiao Cai , Yao Li , Yulong Shi , Xiaoguang Han , Nianjuan Jiang , Kui Jia , Jiangbo Lu

A key challenge in the task of human pose and shape estimation is occlusion, including self-occlusions, object-human occlusions, and inter-person occlusions. The lack of diverse and accurate pose and shape training data becomes a major…

Computer Vision and Pattern Recognition · Computer Science 2022-03-02 Kaibing Yang , Renshu Gu , Maoyu Wang , Masahiro Toyoura , Gang Xu

This paper addresses the problem of 3D human pose estimation from a single image. We follow a standard two-step pipeline by first detecting the 2D position of the $N$ body joints, and then using these observations to infer 3D pose. For the…

Computer Vision and Pattern Recognition · Computer Science 2016-11-29 Francesc Moreno-Noguer

The state-of-the-art for monocular 3D human pose estimation in videos is dominated by the paradigm of 2D-to-3D pose uplifting. While the uplifting methods themselves are rather efficient, the true computational complexity depends on the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-24 Moritz Einfalt , Katja Ludwig , Rainer Lienhart

Epipolar constraints are at the core of feature matching and depth estimation in current multi-person multi-camera 3D human pose estimation methods. Despite the satisfactory performance of this formulation in sparser crowd scenes, its…

Computer Vision and Pattern Recognition · Computer Science 2020-07-22 He Chen , Pengfei Guo , Pengfei Li , Gim Hee Lee , Gregory Chirikjian

Human pose estimation from single images is a challenging problem in computer vision that requires large amounts of labeled training data to be solved accurately. Unfortunately, for many human activities (\eg outdoor sports) such training…

Computer Vision and Pattern Recognition · Computer Science 2020-12-01 Bastian Wandt , Marco Rudolph , Petrissa Zell , Helge Rhodin , Bodo Rosenhahn

We propose a sparse and privacy-enhanced representation for Human Pose Estimation (HPE). Given a perspective camera, we use a proprietary motion vector sensor(MVS) to extract an edge image and a two-directional motion vector image at each…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Ting-Ying Lin , Lin-Yung Hsieh , Fu-En Wang , Wen-Shen Wuen , Min Sun

Large language models (LLMs) are fine-tuned using human comparison data with Reinforcement Learning from Human Feedback (RLHF) methods to make them better aligned with users' preferences. In contrast to LLMs, human preference learning has…

Computer Vision and Pattern Recognition · Computer Science 2023-11-23 Bram Wallace , Meihua Dang , Rafael Rafailov , Linqi Zhou , Aaron Lou , Senthil Purushwalkam , Stefano Ermon , Caiming Xiong , Shafiq Joty , Nikhil Naik

Without using explicit reward, direct preference optimization (DPO) employs paired human preference data to fine-tune generative models, a method that has garnered considerable attention in large language models (LLMs). However, exploration…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Yunhong Lu , Qichao Wang , Hengyuan Cao , Xierui Wang , Xiaoyin Xu , Min Zhang

For human-centric large-scale scenes, fine-grained modeling for 3D human global pose and shape is significant for scene understanding and can benefit many real-world applications. In this paper, we present LiveHPS, a novel…

Computer Vision and Pattern Recognition · Computer Science 2024-02-28 Yiming Ren , Xiao Han , Chengfeng Zhao , Jingya Wang , Lan Xu , Jingyi Yu , Yuexin Ma

The lifting-based methods have dominated monocular 3D human pose estimation by leveraging detected 2D poses as intermediate representations. The 2D component of the final 3D human pose benefits from the detected 2D poses, whereas its depth…

Computer Vision and Pattern Recognition · Computer Science 2025-12-19 Mengyuan Liu , Jiajie Liu , Jinyan Zhang , Wenhao Li , Junsong Yuan

3D pose estimation is an invaluable task in computer vision with various practical applications. Especially, 3D pose estimation for multi-person from a monocular video (3DMPPE) is particularly challenging and is still largely uncharted, far…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Sungchan Park , Eunyi You , Inhoe Lee , Joonseok Lee

Video-based human pose estimation models aim to address scenarios that cannot be effectively solved by static image models such as motion blur, out-of-focus and occlusion. Most existing approaches consist of two stages: detecting human…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Zhihong Wei

Human pose estimation (HPE) is a key building block for developing AI-based context-aware systems inside the operating room (OR). The 24/7 use of images coming from cameras mounted on the OR ceiling can however raise concerns for privacy,…

Computer Vision and Pattern Recognition · Computer Science 2021-08-23 Vinkle Srivastav , Afshin Gangi , Nicolas Padoy

Monocular 3D human pose estimation poses significant challenges due to the inherent depth ambiguities that arise during the reprojection process from 2D to 3D. Conventional approaches that rely on estimating an over-fit projection matrix…

Computer Vision and Pattern Recognition · Computer Science 2024-01-19 Junkun Jiang , Jie Chen