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3D representation and reconstruction of human bodies have been studied for a long time in computer vision. Traditional methods rely mostly on parametric statistical linear models, limiting the space of possible bodies to linear…

计算机视觉与模式识别 · 计算机科学 2021-12-01 Sandro Lombardi , Bangbang Yang , Tianxing Fan , Hujun Bao , Guofeng Zhang , Marc Pollefeys , Zhaopeng Cui

The most commonly used method for addressing 3D geometric registration is the iterative closet-point algorithm, this approach is incremental and prone to drift over multiple consecutive frames. The Common strategy to address the drift is…

计算机视觉与模式识别 · 计算机科学 2023-09-19 Kathia Melbouci , Fawzi Nashashibi

We propose to estimate 3D human pose from multi-view images and a few IMUs attached at person's limbs. It operates by firstly detecting 2D poses from the two signals, and then lifting them to the 3D space. We present a geometric approach to…

计算机视觉与模式识别 · 计算机科学 2020-04-13 Zhe Zhang , Chunyu Wang , Wenhu Qin , Wenjun Zeng

The increasing size of neural networks has led to a growing demand for methods of efficient fine-tuning. Recently, an orthogonal fine-tuning paradigm was introduced that uses orthogonal matrices for adapting the weights of a pretrained…

机器学习 · 计算机科学 2024-06-17 Mikhail Gorbunov , Nikolay Yudin , Vera Soboleva , Aibek Alanov , Alexey Naumov , Maxim Rakhuba

In this paper, we propose a pose grammar to tackle the problem of 3D human pose estimation. Our model directly takes 2D pose as input and learns a generalized 2D-3D mapping function. The proposed model consists of a base network which…

计算机视觉与模式识别 · 计算机科学 2018-01-08 Haoshu Fang , Yuanlu Xu , Wenguan Wang , Xiaobai Liu , Song-Chun Zhu

Accurate state estimation is a fundamental component of robotic control. In robotic manipulation tasks, as is our focus in this work, state estimation is essential for identifying the positions of objects in the scene, forming the basis of…

计算机视觉与模式识别 · 计算机科学 2019-03-12 Xinyi Ren , Jianlan Luo , Eugen Solowjow , Juan Aparicio Ojea , Abhishek Gupta , Aviv Tamar , Pieter Abbeel

In this paper, we present a method for unconstrained end-to-end head pose estimation. We address the problem of ambiguous rotation labels by introducing the rotation matrix formalism for our ground truth data and propose a continuous 6D…

计算机视觉与模式识别 · 计算机科学 2022-11-08 Thorsten Hempel , Ahmed A. Abdelrahman , Ayoub Al-Hamadi

Recently neural scene representations have provided very impressive results for representing 3D scenes visually, however, their study and progress have mainly been limited to visualization of virtual models in computer graphics or scene…

计算机视觉与模式识别 · 计算机科学 2022-09-26 Yassine Ahmine , Arnab Dey , Andrew I. Comport

Optimization with matrix gradient orthogonalization has recently demonstrated impressive results in the training of deep neural networks (Jordan et al., 2024; Liu et al., 2025). In this paper, we provide a theoretical analysis of this…

机器学习 · 计算机科学 2025-04-09 Dmitry Kovalev

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

Object pose estimation is an integral part of robot vision and AR. Previous 6D pose retrieval pipelines treat the problem either as a regression task or discretize the pose space to classify. We change this paradigm and reformulate the…

计算机视觉与模式识别 · 计算机科学 2020-12-02 Benjamin Busam , Hyun Jun Jung , Nassir Navab

Estimating 3D human poses only from a 2D human pose sequence is thoroughly explored in recent years. Yet, prior to this, no such work has attempted to unify 2D and 3D pose representations in the shared feature space. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2024-07-16 Zhenyu Zhang , Wenhao Chai , Zhongyu Jiang , Tian Ye , Mingli Song , Jenq-Neng Hwang , Gaoang Wang

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

Many machine learning problems involve regressing variables on a non-Euclidean manifold -- e.g. a discrete probability distribution, or the 6D pose of an object. One way to tackle these problems through gradient-based learning is to use a…

计算机视觉与模式识别 · 计算机科学 2021-10-14 Romain Brégier

Image representation is an important topic in computer vision and pattern recognition. It plays a fundamental role in a range of applications towards understanding visual contents. Moment-based image representation has been reported to be…

计算机视觉与模式识别 · 计算机科学 2021-11-25 Shuren Qi , Yushu Zhang , Chao Wang , Jiantao Zhou , Xiaochun Cao

Retrieval systems rely on representations learned by increasingly powerful models. However, due to the high training cost and inconsistencies in learned representations, there is significant interest in facilitating communication between…

机器学习 · 计算机科学 2026-05-20 Simone Ricci , Niccolò Biondi , Federico Pernici , Ioannis Patras , Alberto Del Bimbo

We propose an approach to estimate 3D human pose in real world units from a single RGBD image and show that it exceeds performance of monocular 3D pose estimation approaches from color as well as pose estimation exclusively from depth. Our…

计算机视觉与模式识别 · 计算机科学 2018-03-14 Christian Zimmermann , Tim Welschehold , Christian Dornhege , Wolfram Burgard , Thomas Brox

Visual pre-training with large-scale real-world data has made great progress in recent years, showing great potential in robot learning with pixel observations. However, the recipes of visual pre-training for robot manipulation tasks are…

机器人学 · 计算机科学 2023-08-08 Ya Jing , Xuelin Zhu , Xingbin Liu , Qie Sima , Taozheng Yang , Yunhai Feng , Tao Kong

Many settings in machine learning require the selection of a rotation representation. However, choosing a suitable representation from the many available options is challenging. This paper acts as a survey and guide through rotation…

机器学习 · 计算机科学 2025-03-26 A. René Geist , Jonas Frey , Mikel Zhobro , Anna Levina , Georg Martius

We present a novel approach for 3D human pose estimation by employing probabilistic modeling. This approach leverages the advantages of normalizing flows in non-Euclidean geometries to address uncertain poses. Specifically, our method…

计算机视觉与模式识别 · 计算机科学 2024-12-09 Karthik Shetty , Annette Birkhold , Bernhard Egger , Srikrishna Jaganathan , Norbert Strobel , Markus Kowarschik , Andreas Maier