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A key challenge of learning a visual representation for the 3D high fidelity geometry of dressed humans lies in the limited availability of the ground truth data (e.g., 3D scanned models), which results in the performance degradation of 3D…

计算机视觉与模式识别 · 计算机科学 2022-12-29 Yasamin Jafarian , Hyun Soo Park

Human pose analysis has garnered significant attention within both the research community and practical applications, owing to its expanding array of uses, including gaming, video surveillance, sports performance analysis, and…

计算机视觉与模式识别 · 计算机科学 2023-10-23 Lijuan Zhou , Xiang Meng , Zhihuan Liu , Mengqi Wu , Zhimin Gao , Pichao Wang

Human pose transfer synthesizes new view(s) of a person for a given pose. Recent work achieves this via self-reconstruction, which disentangles a person's pose and texture information by breaking the person down into parts, then recombines…

计算机视觉与模式识别 · 计算机科学 2023-09-01 Nannan Li , Kevin J. Shih , Bryan A. Plummer

We propose a scalable neural network framework to reconstruct the 3D mesh of a human body from multi-view images, in the subspace of the SMPL model. Use of multi-view images can significantly reduce the projection ambiguity of the problem,…

计算机视觉与模式识别 · 计算机科学 2019-08-27 Junbang Liang , Ming C. Lin

We consider the task of estimating 3D human pose and shape from videos. While existing frame-based approaches have made significant progress, these methods are independently applied to each image, thereby often leading to inconsistent…

计算机视觉与模式识别 · 计算机科学 2021-09-08 Yun-Chun Chen , Marco Piccirilli , Robinson Piramuthu , Ming-Hsuan Yang

Most recent view-invariant action recognition and performance assessment approaches rely on a large amount of annotated 3D skeleton data to extract view-invariant features. However, acquiring 3D skeleton data can be cumbersome, if not…

计算机视觉与模式识别 · 计算机科学 2024-07-09 Faegheh Sardari , Björn Ommer , Majid Mirmehdi

In this paper, we aim to recover the 3D human pose from 2D body joints of a single image. The major challenge in this task is the depth ambiguity since different 3D poses may produce similar 2D poses. Although many recent advances in this…

计算机视觉与模式识别 · 计算机科学 2019-06-03 Mengxi Jiang , Zhuliang Yu , Cuihua Li , Yunqi Lei

There has been significant work on learning realistic, articulated, 3D models of the human body. In contrast, there are few such models of animals, despite many applications. The main challenge is that animals are much less cooperative than…

计算机视觉与模式识别 · 计算机科学 2017-04-13 Silvia Zuffi , Angjoo Kanazawa , David Jacobs , Michael J. Black

Learning structures of 3D shapes is a fundamental problem in the field of computer graphics and geometry processing. We present a simple yet interpretable unsupervised method for learning a new structural representation in the form of 3D…

计算机视觉与模式识别 · 计算机科学 2020-03-27 Nenglun Chen , Lingjie Liu , Zhiming Cui , Runnan Chen , Duygu Ceylan , Changhe Tu , Wenping Wang

Physically-based simulation is a powerful approach for 3D facial animation as the resulting deformations are governed by physical constraints, allowing to easily resolve self-collisions, respond to external forces and perform realistic…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Lingchen Yang , Gaspard Zoss , Prashanth Chandran , Markus Gross , Barbara Solenthaler , Eftychios Sifakis , Derek Bradley

Recent advances in 3D human shape reconstruction from single images have shown impressive results, leveraging on deep networks that model the so-called implicit function to learn the occupancy status of arbitrarily dense 3D points in space.…

计算机视觉与模式识别 · 计算机科学 2022-05-10 Nicolas Ugrinovic , Albert Pumarola , Alberto Sanfeliu , Francesc Moreno-Noguer

Representation learning is the foundation for the recent success of neural network models. However, the distributed representations generated by neural networks are far from ideal. Due to their highly entangled nature, they are di cult to…

机器学习 · 计算机科学 2016-02-09 William Whitney

Intelligent agents should be able to learn useful representations by observing changes in their environment. We model such observations as pairs of non-i.i.d. images sharing at least one of the underlying factors of variation. First, we…

We present an approach for detecting and estimating the 3D poses of objects in images that requires only an untextured CAD model and no training phase for new objects. Our approach combines Deep Learning and 3D geometry: It relies on an…

计算机视觉与模式识别 · 计算机科学 2020-10-09 Giorgia Pitteri , Aurélie Bugeau , Slobodan Ilic , Vincent Lepetit

We present a novel paradigm of building an animatable 3D human representation from a monocular video input, such that it can be rendered in any unseen poses and views. Our method is based on a dynamic Neural Radiance Field (NeRF) rigged by…

计算机视觉与模式识别 · 计算机科学 2022-08-19 Gusi Te , Xiu Li , Xiao Li , Jinglu Wang , Wei Hu , Yan Lu

With increasing focus on augmented and virtual reality applications (XR) comes the demand for algorithms that can lift objects from images and videos into representations that are suitable for a wide variety of related 3D tasks. Large-scale…

计算机视觉与模式识别 · 计算机科学 2022-09-28 Felix Wimbauer , Shangzhe Wu , Christian Rupprecht

Disentangled representation learning is one of the major goals of deep learning, and is a key step for achieving explainable and generalizable models. A well-defined theoretical guarantee still lacks for the VAE-based unsupervised methods,…

机器学习 · 计算机科学 2022-03-16 Tao Yang , Xuanchi Ren , Yuwang Wang , Wenjun Zeng , Nanning Zheng

Our goal is to extract meaningful transformations from raw images, such as varying the thickness of lines in handwriting or the lighting in a portrait. We propose an unsupervised approach to learn such transformations by attempting to…

机器学习 · 统计学 2017-11-08 Tatsunori B. Hashimoto , John C. Duchi , Percy Liang

Human pose estimation from single images is a challenging problem that is typically solved by supervised learning. Unfortunately, labeled training data does not yet exist for many human activities since 3D annotation requires dedicated…

计算机视觉与模式识别 · 计算机科学 2021-12-15 Bastian Wandt , James J. Little , Helge Rhodin

This work addresses the problem of estimating the full body 3D human pose and shape from a single color image. This is a task where iterative optimization-based solutions have typically prevailed, while Convolutional Networks (ConvNets)…

计算机视觉与模式识别 · 计算机科学 2018-05-11 Georgios Pavlakos , Luyang Zhu , Xiaowei Zhou , Kostas Daniilidis