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From an image of a person in action, we can easily guess the 3D motion of the person in the immediate past and future. This is because we have a mental model of 3D human dynamics that we have acquired from observing visual sequences of…

Computer Vision and Pattern Recognition · Computer Science 2019-09-18 Angjoo Kanazawa , Jason Y. Zhang , Panna Felsen , Jitendra Malik

We propose a method to train deep networks to decompose videos into 3D geometry (camera and depth), moving objects, and their motions, with no supervision. We build on the idea of view synthesis, which uses classical camera geometry to…

Computer Vision and Pattern Recognition · Computer Science 2021-06-02 Dan Xu , Andrea Vedaldi , Joao F. Henriques

Training accurate 3D human pose estimators requires large amount of 3D ground-truth data which is costly to collect. Various weakly or self supervised pose estimation methods have been proposed due to lack of 3D data. Nevertheless, these…

Computer Vision and Pattern Recognition · Computer Science 2019-04-10 Muhammed Kocabas , Salih Karagoz , Emre Akbas

We tackle the task of multi-view, multi-person 3D human pose estimation from a limited number of uncalibrated depth cameras. Recently, many approaches have been proposed for 3D human pose estimation from multi-view RGB cameras. However,…

Computer Vision and Pattern Recognition · Computer Science 2024-01-30 Yu-Jhe Li , Yan Xu , Rawal Khirodkar , Jinhyung Park , Kris Kitani

This paper strives for spatio-temporal localization of human actions in videos. In the literature, the consensus is to achieve localization by training on bounding box annotations provided for each frame of each training video. As…

Computer Vision and Pattern Recognition · Computer Science 2018-10-02 Pascal Mettes , Cees G. M. Snoek

A 3D scene consists of a set of objects, each with a shape and a layout giving their position in space. Understanding 3D scenes from 2D images is an important goal, with applications in robotics and graphics. While there have been recent…

Computer Vision and Pattern Recognition · Computer Science 2022-06-15 Georgia Gkioxari , Nikhila Ravi , Justin Johnson

We present a convolutional neural network for joint 3D shape prediction and viewpoint estimation from a single input image. During training, our network gets the learning signal from a silhouette of an object in the input image - a form of…

Robotics · Computer Science 2019-10-18 Oier Mees , Maxim Tatarchenko , Thomas Brox , Wolfram Burgard

Estimating robot pose and joint angles is significant in advanced robotics, enabling applications like robot collaboration and online hand-eye calibration.However, the introduction of unknown joint angles makes prediction more complex than…

Robotics · Computer Science 2024-03-28 Yang Tian , Jiyao Zhang , Guowei Huang , Bin Wang , Ping Wang , Jiangmiao Pang , Hao Dong

Online Multi-Object Tracking (MOT) from videos is a challenging computer vision task which has been extensively studied for decades. Most of the existing MOT algorithms are based on the Tracking-by-Detection (TBD) paradigm combined with…

Computer Vision and Pattern Recognition · Computer Science 2019-04-10 Zhen He , Jian Li , Daxue Liu , Hangen He , David Barber

Creating computer vision datasets requires careful planning and lots of time and effort. In robotics research, we often have to use standardized objects, such as the YCB object set, for tasks such as object tracking, pose estimation,…

Computer Vision and Pattern Recognition · Computer Science 2022-01-20 Kenneth Blomqvist , Jen Jen Chung , Lionel Ott , Roland Siegwart

Understanding the 3D world without supervision is currently a major challenge in computer vision as the annotations required to supervise deep networks for tasks in this domain are expensive to obtain on a large scale. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2022-12-02 Octave Mariotti , Oisin Mac Aodha , Hakan Bilen

In this paper, we introduce a novel unsupervised domain adaptation technique for the task of 3D keypoint prediction from a single depth scan or image. Our key idea is to utilize the fact that predictions from different views of the same or…

Computer Vision and Pattern Recognition · Computer Science 2018-07-27 Xingyi Zhou , Arjun Karpur , Chuang Gan , Linjie Luo , Qixing Huang

Existing deep models predict 2D and 3D kinematic poses from video that are approximately accurate, but contain visible errors that violate physical constraints, such as feet penetrating the ground and bodies leaning at extreme angles. In…

Computer Vision and Pattern Recognition · Computer Science 2020-07-27 Davis Rempe , Leonidas J. Guibas , Aaron Hertzmann , Bryan Russell , Ruben Villegas , Jimei Yang

Convolutional Neural Network based approaches for monocular 3D human pose estimation usually require a large amount of training images with 3D pose annotations. While it is feasible to provide 2D joint annotations for large corpora of…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Ikhsanul Habibie , Weipeng Xu , Dushyant Mehta , Gerard Pons-Moll , Christian Theobalt

This article describes the design and development of a system for remote indoor 3D monitoring using an undetermined number of Microsoft(R) Kinect sensors. In the proposed client-server system, the Kinect cameras can be connected to…

Computer Vision and Pattern Recognition · Computer Science 2014-03-13 M. Martínez-Zarzuela , M. Pedraza-Hueso , F. J. Díaz-Pernas , D. González-Ortega , M. Antón-Rodríguez

Determining accurate bird's eye view (BEV) positions of objects and tracks in a scene is vital for various perception tasks including object interactions mapping, scenario extraction etc., however, the level of supervision required to…

Computer Vision and Pattern Recognition · Computer Science 2022-12-08 Paridhi Singh , Gaurav Singh , Arun Kumar

We introduce a technique for 3D human keypoint estimation that directly models the notion of spatial uncertainty of a keypoint. Our technique employs a principled approach to modelling spatial uncertainty inspired from techniques in robust…

Computer Vision and Pattern Recognition · Computer Science 2020-12-22 Francis Williams , Or Litany , Avneesh Sud , Kevin Swersky , Andrea Tagliasacchi

In this work, we consider the problem of estimating the 3D position of multiple humans in a scene as well as their body shape and articulation from a single RGB video recorded with a static camera. In contrast to expensive marker-based or…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Diogo Luvizon , Marc Habermann , Vladislav Golyanik , Adam Kortylewski , Christian Theobalt

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

Recently, several deep learning models have been proposed for 3D human pose estimation. Nevertheless, most of these approaches only focus on the single-person case or estimate 3D pose of a few people at high resolution. Furthermore, many…

Computer Vision and Pattern Recognition · Computer Science 2021-01-08 Abdallah Benzine , Florian Chabot , Bertrand Luvison , Quoc Cong Pham , Cahterine Achrd