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Estimating the metric height of a person from monocular imagery without additional assumptions is ill-posed. Existing solutions either require manual calibration of ground plane and camera geometry, special cameras, or reference objects of…

Computer Vision and Pattern Recognition · Computer Science 2019-10-17 Didier Bieler , Semih Günel , Pascal Fua , Helge Rhodin

Monocular 3D human pose and shape estimation is challenging due to the many degrees of freedom of the human body and thedifficulty to acquire training data for large-scale supervised learning in complex visual scenes. In this paper we…

Computer Vision and Pattern Recognition · Computer Science 2020-08-25 Andrei Zanfir , Eduard Gabriel Bazavan , Hongyi Xu , Bill Freeman , Rahul Sukthankar , Cristian Sminchisescu

Although many studies have investigated markerless motion capture, the technology has not been applied to real sports or concerts. In this paper, we propose a markerless motion capture method with spatiotemporal accuracy and smoothness from…

Computer Vision and Pattern Recognition · Computer Science 2020-10-15 Takuya Ohashi , Yosuke Ikegami , Yoshihiko Nakamura

Depth and ego-motion estimations are essential for the localization and navigation of autonomous robots and autonomous driving. Recent studies make it possible to learn the per-pixel depth and ego-motion from the unlabeled monocular video.…

Computer Vision and Pattern Recognition · Computer Science 2022-06-09 Guangming Wang , Jiquan Zhong , Shijie Zhao , Wenhua Wu , Zhe Liu , Hesheng Wang

In this paper, we introduce the new task of reconstructing 3D human pose from a single image in which we can see the person and the person's image through a mirror. Compared to general scenarios of 3D pose estimation from a single view, the…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Qi Fang , Qing Shuai , Junting Dong , Hujun Bao , Xiaowei Zhou

Depth estimation is usually ill-posed and ambiguous for monocular camera-based 3D multi-person pose estimation. Since LiDAR can capture accurate depth information in long-range scenes, it can benefit both the global localization of…

Computer Vision and Pattern Recognition · Computer Science 2022-12-01 Peishan Cong , Yiteng Xu , Yiming Ren , Juze Zhang , Lan Xu , Jingya Wang , Jingyi Yu , Yuexin Ma

Current human pose estimation systems focus on retrieving an accurate 3D global estimate of a single person. Therefore, this paper presents one of the first 3D multi-person human pose estimation systems that is able to work in real-time and…

Computer Vision and Pattern Recognition · Computer Science 2024-03-15 Pawel Knap , Peter Hardy , Alberto Tamajo , Hwasup Lim , Hansung Kim

We introduce UniCon3R, a unified feed-forward framework for online human-scene 4D reconstruction from monocular video. Current feed-forward human-scene reconstruction methods suffer from artifacts, where bodies float above the ground or…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Tanuj Sur , Shashank Tripathi , Nikos Athanasiou , Ha Linh Nguyen , Kai Xu , Michael J. Black , Angela Yao

This paper presents a method which can track and 3D reconstruct the non-rigid surface motion of human performance using a moving RGB-D camera. 3D reconstruction of marker-less human performance is a challenging problem due to the large…

Computer Vision and Pattern Recognition · Computer Science 2018-10-10 Shafeeq Elanattil , Peyman Moghadam , Simon Denman , Sridha Sridharan , Clinton Fookes

Using videos to analyze pitchers in baseball can play a vital role in strategizing and injury prevention. Computer vision-based pose analysis offers a time-efficient and cost-effective approach. However, the use of accessible broadcast…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Jerrin Bright , Yuhao Chen , John Zelek

Perceiving humans in the context of Intelligent Transportation Systems (ITS) often relies on multiple cameras or expensive LiDAR sensors. In this work, we present a new cost-effective vision-based method that perceives humans' locations in…

Computer Vision and Pattern Recognition · Computer Science 2021-05-04 Lorenzo Bertoni , Sven Kreiss , Alexandre Alahi

We propose a CNN-based approach for 3D human body pose estimation from single RGB images that addresses the issue of limited generalizability of models trained solely on the starkly limited publicly available 3D pose data. Using only the…

Computer Vision and Pattern Recognition · Computer Science 2017-10-05 Dushyant Mehta , Helge Rhodin , Dan Casas , Pascal Fua , Oleksandr Sotnychenko , Weipeng Xu , Christian Theobalt

3D Human body pose and shape estimation within a temporal sequence can be quite critical for understanding human behavior. Despite the significant progress in human pose estimation in the recent years, which are often based on single images…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Zhouping Wang , Sarah Ostadabbas

In this paper, we present a data-driven approach for human pose tracking in video data. We formulate the human pose tracking problem as a discrete optimization problem based on spatio-temporal pictorial structure model and solve this…

Computer Vision and Pattern Recognition · Computer Science 2016-08-02 Soumitra Samanta , Bhabatosh Chanda

We propose a new method to estimate the 6-dof trajectory of a flying object such as a quadrotor UAV within a 3D airspace monitored using multiple fixed ground cameras. It is based on a new structure from motion formulation for the 3D…

Computer Vision and Pattern Recognition · Computer Science 2017-11-22 Artem Rozantsev , Sudipta N. Sinha , Debadeepta Dey , Pascal Fua

Due to the visual ambiguity, purely kinematic formulations on monocular human motion capture are often physically incorrect, biomechanically implausible, and can not reconstruct accurate interactions. In this work, we focus on exploiting…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Buzhen Huang , Liang Pan , Yuan Yang , Jingyi Ju , Yangang Wang

3D human pose reconstruction from single-view camera is a difficult and challenging topic. Many approaches have been proposed, but almost focusing on frame-by-frame independently while inter-frames are highly correlated in a pose sequence.…

Computer Vision and Pattern Recognition · Computer Science 2019-01-11 X. T. Nguyen , T. D. Ngo , T. H. Le

We aim to simultaneously estimate the 3D articulated pose and high fidelity volumetric occupancy of human performance, from multiple viewpoint video (MVV) with as few as two views. We use a multi-channel symmetric 3D convolutional…

Computer Vision and Pattern Recognition · Computer Science 2020-09-08 Andrew Gilbert , Matthew Trumble , Adrian Hilton , John Collomosse

In this work we address the challenging problem of 3D human pose estimation from single images. Recent approaches learn deep neural networks to regress 3D pose directly from images. One major challenge for such methods, however, is the…

Computer Vision and Pattern Recognition · Computer Science 2017-09-07 Umar Iqbal , Andreas Doering , Hashim Yasin , Björn Krüger , Andreas Weber , Juergen Gall

Human mesh recovery can be approached using either regression-based or optimization-based methods. Regression models achieve high pose accuracy but struggle with model-to-image alignment due to the lack of explicit 2D-3D correspondences. In…

Computer Vision and Pattern Recognition · Computer Science 2025-02-07 Chongyang Xu , Buzhen Huang , Chengfang Zhang , Ziliang Feng , Yangang Wang