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Recently, vision transformers have shown great success in a set of human reconstruction tasks such as 2D human pose estimation (2D HPE), 3D human pose estimation (3D HPE), and human mesh reconstruction (HMR) tasks. In these tasks, feature…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Ce Zheng , Matias Mendieta , Taojiannan Yang , Guo-Jun Qi , Chen Chen

Query-based methods with dense features have demonstrated remarkable success in 3D object detection tasks. However, the computational demands of these models, particularly with large image sizes and multiple transformer layers, pose…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Lizhen Xu , Xiuxiu Bai , Xiaojun Jia , Jianwu Fang , Shanmin Pang

The motion capture system that supports full-body virtual representation is of key significance for virtual reality. Compared to vision-based systems, full-body pose estimation from sparse tracking signals is not limited by environmental…

Computer Vision and Pattern Recognition · Computer Science 2025-05-09 Zunjie Zhu , Yan Zhao , Yihan Hu , Guoxiang Wang , Hai Qiu , Bolun Zheng , Chenggang Yan , Feng Xu

The typical bottom-up human pose estimation framework includes two stages, keypoint detection and grouping. Most existing works focus on developing grouping algorithms, e.g., associative embedding, and pixel-wise keypoint regression that we…

Computer Vision and Pattern Recognition · Computer Science 2020-06-30 Ke Sun , Zigang Geng , Depu Meng , Bin Xiao , Dong Liu , Zhaoxiang Zhang , Jingdong Wang

Significant advancements have been achieved in the realm of understanding poses and interactions of two hands manipulating an object. The emergence of augmented reality (AR) and virtual reality (VR) technologies has heightened the demand…

Computer Vision and Pattern Recognition · Computer Science 2025-02-28 Elkhan Ismayilzada , MD Khalequzzaman Chowdhury Sayem , Yihalem Yimolal Tiruneh , Mubarrat Tajoar Chowdhury , Muhammadjon Boboev , Seungryul Baek

Vision Transformers (ViTs) have demonstrated state-ofthe-art performance in several benchmarks, yet their high computational costs hinders their practical deployment. Patch Pruning offers significant savings, but existing approaches…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Patrick Glandorf , Thomas Norrenbrock , Bodo Rosenhahn

In the field of 3D Human Pose Estimation (HPE), accurately estimating human pose, especially in scenarios with occlusions, is a significant challenge. This work identifies and addresses a gap in the current state of the art in 3D HPE…

Computer Vision and Pattern Recognition · Computer Science 2024-04-26 Filipa Lino , Carlos Santiago , Manuel Marques

Monocular 4D human-object interaction (HOI) reconstruction - recovering a moving human and a manipulated object from a single RGB video - remains challenging due to depth ambiguity and frequent occlusions. Existing methods often rely on…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Haoyu Zhang , Wei Zhai , Yuhang Yang , Yang Cao , Zheng-Jun Zha

Estimating 3D poses of multiple humans in real-time is a classic but still challenging task in computer vision. Its major difficulty lies in the ambiguity in cross-view association of 2D poses and the huge state space when there are…

Computer Vision and Pattern Recognition · Computer Science 2021-07-30 Long Chen , Haizhou Ai , Rui Chen , Zijie Zhuang , Shuang Liu

Transformer-based 3D human pose estimation methods suffer from high computational costs due to the quadratic complexity of self-attention with respect to sequence length. Additionally, pose sequences often contain significant redundancy…

Computer Vision and Pattern Recognition · Computer Science 2025-10-10 Zenghao Zheng , Lianping Yang , Hegui Zhu , Mingrui Ye

Vision Transformers (ViTs) have emerged as the backbone of many segmentation models, consistently achieving state-of-the-art (SOTA) performance. However, their success comes at a significant computational cost. Image token pruning is one of…

Computer Vision and Pattern Recognition · Computer Science 2024-12-02 Hanning Chen , Yang Ni , Wenjun Huang , Yezi Liu , SungHeon Jeong , Fei Wen , Nathaniel Bastian , Hugo Latapie , Mohsen Imani

The attention mechanism provides a sequential prediction framework for learning spatial models with enhanced implicit temporal consistency. In this work, we show a systematic design (from 2D to 3D) for how conventional networks and other…

Computer Vision and Pattern Recognition · Computer Science 2021-03-05 Ruixu Liu , Ju Shen , He Wang , Chen Chen , Sen-ching Cheung , Vijayan K. Asari

Existing multi-view three-dimensional (3D) object detection approaches widely adopt large-scale pre-trained vision transformer (ViT)-based foundation models as backbones, being computationally complex. To address this problem, current…

Computer Vision and Pattern Recognition · Computer Science 2026-04-16 Danish Nazir , Antoine Hanna-Asaad , Lucas Görnhardt , Jan Piewek , Thorsten Bagdonat , Tim Fingscheidt

Recently, Vision Transformer (ViT) has achieved promising performance in image recognition and gradually serves as a powerful backbone in various vision tasks. To satisfy the sequential input of Transformer, the tail of ViT first splits…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Yunke Wang , Bo Du , Wenyuan Wang , Chang Xu

Vision Transformers (ViTs) achieve state-of-the-art performance in semantic segmentation but are hindered by high computational and memory costs. To address this, we propose STEP (SuperToken and Early-Pruning), a hybrid token-reduction…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Michal Szczepanski , Martyna Poreba , Karim Haroun

Video based fall detection accuracy has been largely improved due to the recent progress on deep convolutional neural networks. However, there still exists some challenges, such as lighting variation, complex background, which degrade the…

Computer Vision and Pattern Recognition · Computer Science 2021-08-02 Ziwei Chen , Yiye Wang , Wankou Yang

Hand pose estimation from monocular depth images has been an important and challenging problem in the Computer Vision community. In this paper, we present a novel approach to estimate 3D hand joint locations from 2D depth images. Unlike…

Computer Vision and Pattern Recognition · Computer Science 2020-02-21 Rohan Lekhwani , Bhupendra Singh

We propose a novel method for joint estimation of shape and pose of rigid objects from their sequentially observed RGB-D images. In sharp contrast to past approaches that rely on complex non-linear optimization, we propose to formulate it…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Yuta Yoshitake , Mai Nishimura , Shohei Nobuhara , Ko Nishino

Multi-person pose estimation methods generally follow top-down and bottom-up paradigms, both of which can be considered as two-stage approaches thus leading to the high computation cost and low efficiency. Towards a compact and efficient…

Computer Vision and Pattern Recognition · Computer Science 2021-12-28 Yabo Xiao , Xiaojuan Wang , Dongdong Yu , Guoli Wang , Qian Zhang , Mingshu He

Multi-view 3D geometry networks offer a powerful prior but are prohibitively slow for real-time applications. We propose a novel way to adapt them for online use, enabling real-time 6-DoF pose tracking and online reconstruction of objects…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Marwan Taher , Ignacio Alzugaray , Kirill Mazur , Xin Kong , Andrew J. Davison