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A Bayesian framework for 3D human pose estimation from monocular images based on sparse representation (SR) is introduced. Our probabilistic approach aims at simultaneously learning two overcomplete dictionaries (one for the visual input…

Computer Vision and Pattern Recognition · Computer Science 2014-12-02 Behnam Babagholami-Mohamadabadi , Amin Jourabloo , Ali Zarghami , Shohreh Kasaei

Accurate 3D human pose estimation from single images is possible with sophisticated deep-net architectures that have been trained on very large datasets. However, this still leaves open the problem of capturing motions for which no such…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Helge Rhodin , Jörg Spörri , Isinsu Katircioglu , Victor Constantin , Frédéric Meyer , Erich Müller , Mathieu Salzmann , Pascal Fua

Facial landmark detection, head pose estimation, and facial deformation analysis are typical facial behavior analysis tasks in computer vision. The existing methods usually perform each task independently and sequentially, ignoring their…

Computer Vision and Pattern Recognition · Computer Science 2017-09-26 Yue Wu , Chao Gou , Qiang Ji

The accuracy of monocular 3D human pose estimation depends on the viewpoint from which the image is captured. While freely moving cameras, such as on drones, provide control over this viewpoint, automatically positioning them at the…

Computer Vision and Pattern Recognition · Computer Science 2020-06-19 Sena Kiciroglu , Helge Rhodin , Sudipta N. Sinha , Mathieu Salzmann , Pascal Fua

This paper proposes a statistical approach to 2D pose estimation from human images. The main problems with the standard supervised approach, which is based on a deep recognition (image-to-pose) model, are that it often yields anatomically…

Computer Vision and Pattern Recognition · Computer Science 2020-04-09 Takayuki Nakatsuka , Kazuyoshi Yoshii , Yuki Koyama , Satoru Fukayama , Masataka Goto , Shigeo Morishima

We propose a novel method that tracks fast moving objects, mainly non-uniform spherical, in full 6 degrees of freedom, estimating simultaneously their 3D motion trajectory, 3D pose and object appearance changes with a time step that is a…

Computer Vision and Pattern Recognition · Computer Science 2020-10-30 Denys Rozumnyi , Jan Kotera , Filip Sroubek , Jiri Matas

Recovering 3D full-body human pose is a challenging problem with many applications. It has been successfully addressed by motion capture systems with body worn markers and multiple cameras. In this paper, we address the more challenging…

Computer Vision and Pattern Recognition · Computer Science 2018-03-12 Xiaowei Zhou , Menglong Zhu , Georgios Pavlakos , Spyridon Leonardos , Kostantinos G. Derpanis , Kostas Daniilidis

In this paper, we present an approach for tracking people in monocular videos, by predicting their future 3D representations. To achieve this, we first lift people to 3D from a single frame in a robust way. This lifting includes information…

Computer Vision and Pattern Recognition · Computer Science 2021-12-09 Jathushan Rajasegaran , Georgios Pavlakos , Angjoo Kanazawa , Jitendra Malik

In this paper we present a novel approach that takes as input a 3D image and gives as output its pose i.e. it tells whether the face is oriented with respect the X, Y or Z axes with angles of rotation up to 40 degree. All the experiments…

Computer Vision and Pattern Recognition · Computer Science 2013-09-16 Parama Bagchi , Debotosh Bhattacharjee , Mita Nasipuri , Dipak Kumar Basu

We present a simple lightweight markerless facial performance capture framework using just a monocular video input that combines Active Appearance Models for feature tracking and prior constraints on 3D shapes into an integrated objective…

Computer Vision and Pattern Recognition · Computer Science 2019-01-17 Shridhar Ravikumar

Despite progress in human motion capture, existing multi-view methods often face challenges in estimating the 3D pose and shape of multiple closely interacting people. This difficulty arises from reliance on accurate 2D joint estimations,…

Computer Vision and Pattern Recognition · Computer Science 2024-08-21 Feichi Lu , Zijian Dong , Jie Song , Otmar Hilliges

In this paper, we propose a new approach that takes as input a 3D face image across X, Y and Z axes as well as both Y and X axes and gives output as its pose i.e. it tells whether the face is oriented with respect the X, Y or Z axes or is…

Computer Vision and Pattern Recognition · Computer Science 2013-09-19 Parama Bagchi , Debotosh Bhattacharjee , Mita Nasipuri , Dipak Kumar Basu

Understanding the camera wearer's activity is central to egocentric vision, yet one key facet of that activity is inherently invisible to the camera--the wearer's body pose. Prior work focuses on estimating the pose of hands and arms when…

Computer Vision and Pattern Recognition · Computer Science 2016-03-28 Hao Jiang , Kristen Grauman

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

We propose a method for object-aware 3D egocentric pose estimation that tightly integrates kinematics modeling, dynamics modeling, and scene object information. Unlike prior kinematics or dynamics-based approaches where the two components…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Zhengyi Luo , Ryo Hachiuma , Ye Yuan , Kris Kitani

Egocentric 3D human pose estimation using a single fisheye camera has become popular recently as it allows capturing a wide range of daily activities in unconstrained environments, which is difficult for traditional outside-in motion…

Computer Vision and Pattern Recognition · Computer Science 2021-08-25 Jian Wang , Lingjie Liu , Weipeng Xu , Kripasindhu Sarkar , Christian Theobalt

This paper proposes a novel model fitting algorithm for 3D facial expression reconstruction from a single image. Face expression reconstruction from a single image is a challenging task in computer vision. Most state-of-the-art methods fit…

Computer Vision and Pattern Recognition · Computer Science 2018-08-20 Fanzi Wu , Songnan Li , Tianhao Zhao , King Ngi Ngan , Lv Sheng

Millions of images of human faces are captured every single day; but these photographs portray the likeness of an individual with a fixed pose, expression, and appearance. Portrait image animation enables the post-capture adjustment of…

Computer Vision and Pattern Recognition · Computer Science 2022-03-28 Connor Z. Lin , David B. Lindell , Eric R. Chan , Gordon Wetzstein

The body pose of a person wearing a camera is of great interest for applications in augmented reality, healthcare, and robotics, yet much of the person's body is out of view for a typical wearable camera. We propose a learning-based…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Evonne Ng , Donglai Xiang , Hanbyul Joo , Kristen Grauman

Vivid talking face generation holds immense potential applications across diverse multimedia domains, such as film and game production. While existing methods accurately synchronize lip movements with input audio, they typically ignore…

Computer Vision and Pattern Recognition · Computer Science 2024-06-13 Jiadong Liang , Feng Lu