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Collaborative filtering, a widely-used recommendation technique, predicts a user's preference by aggregating the ratings from similar users. As a result, these measures cannot fully utilize the rating information and are not suitable for…

Information Retrieval · Computer Science 2019-12-11 Yitong Meng , Xinyan Dai , Xiao Yan , James Cheng , Weiwen Liu , Benben Liao , Jun Guo , Guangyong Chen

Assessing the performance of human movements during teleoperation and virtual reality is a challenging problem, particularly in 3D space due to complex spatial settings. Despite the presence of a multitude of metrics, a compelling…

Human-Computer Interaction · Computer Science 2021-06-15 Eleftherios Triantafyllidis , Wenbin Hu , Christopher McGreavy , Zhibin Li

We evaluate the performance and usability of mouse-based, touch-based, and tangible interaction for manipulating objects in a 3D virtual environment. This comparison is a step toward a better understanding of the limitations and benefits of…

Human-Computer Interaction · Computer Science 2024-04-25 Lonni Besançon , Paul Issartel , Mehdi Ammi , Tobias Isenberg

We consider the problem of reorienting a rigid object with arbitrary known shape on a table using a two-finger pinch gripper. Reorienting problem is challenging because of its non-smoothness and high dimensionality. In this work, we focus…

Robotics · Computer Science 2019-12-06 Yifan Hou , Zhenzhong Jia , Matthew T. Mason

Accurate 3D hand pose and pressure sensing is essential for immersive human-computer interaction, yet simultaneously achieving both in mobile scenarios remains a significant challenge. We present WristPP, a camera-based wrist-worn system…

Human-Computer Interaction · Computer Science 2026-03-03 Ziheng Xi , Zihang Ao , Yitao Wang , Mingeze Gao , Wanmei Zhang , Jianjiang Feng , Jie Zhou

We introduce TAPIP3D, a novel approach for long-term 3D point tracking in monocular RGB and RGB-D videos. TAPIP3D represents videos as camera-stabilized spatio-temporal feature clouds, leveraging depth and camera motion information to lift…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Bowei Zhang , Lei Ke , Adam W. Harley , Katerina Fragkiadaki

Existing methods for 3D human mesh recovery always directly estimate SMPL parameters, which involve both joint rotations and shape parameters. However, these methods present rotation semantic ambiguity, rotation error accumulation, and…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Xiaoyang Hao , Han Li , Jun Cheng , Lei Wang

We present a joint 3D pose and focal length estimation approach for object categories in the wild. In contrast to previous methods that predict 3D poses independently of the focal length or assume a constant focal length, we explicitly…

Computer Vision and Pattern Recognition · Computer Science 2019-08-09 Alexander Grabner , Peter M. Roth , Vincent Lepetit

Multi-person social interactions are inherently built on coherence and relationships among all individuals within the group, making multi-person localization and body pose estimation essential to understanding these social dynamics. One…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Thomas Markhorst , Zhi-Yi Lin , Jouh Yeong Chew , Jan van Gemert , Xucong Zhang

In texture-plus-depth representation of a 3D scene, depth maps from different camera viewpoints are typically lossily compressed via the classical transform coding / coefficient quantization paradigm. In this paper we propose to reduce…

Computer Vision and Pattern Recognition · Computer Science 2023-07-19 Pengfei Wan , Gene Cheung , Philip A. Chou , Dinei Florencio , Cha Zhang , Oscar C. Au

Image matching is still challenging in such scenes with large viewpoints or illumination changes or with low textures. In this paper, we propose a Transformer-based pseudo 3D image matching method. It upgrades the 2D features extracted from…

Computer Vision and Pattern Recognition · Computer Science 2024-08-13 Liming Han , Zhaoxiang Liu , Shiguo Lian

Large-scale point cloud generated from 3D sensors is more accurate than its image-based counterpart. However, it is seldom used in visual pose estimation due to the difficulty in obtaining 2D-3D image to point cloud correspondences. In this…

Computer Vision and Pattern Recognition · Computer Science 2019-04-23 Mengdan Feng , Sixing Hu , Marcelo Ang , Gim Hee Lee

Existing 3D mask learning methods encounter performance bottlenecks under limited data, and our objective is to overcome this limitation. In this paper, we introduce a triple point masking scheme, named TPM, which serves as a scalable…

Computer Vision and Pattern Recognition · Computer Science 2024-10-16 Jiaming Liu , Linghe Kong , Yue Wu , Maoguo Gong , Hao Li , Qiguang Miao , Wenping Ma , Can Qin

Current Point-based detectors can only learn from the provided points, with limited receptive fields and insufficient global learning capabilities for such targets. In this paper, we present a novel Point Dilation Mechanism for single-stage…

Computer Vision and Pattern Recognition · Computer Science 2025-02-13 Ao Liang , Haiyang Hua , Jian Fang , Wenyu Chen , Huaici Zhao

A key aspect of the precision of a mobile robots localization is the quality and aptness of the map it is using. A variety of mapping approaches are available that can be employed to create such maps with varying degrees of effort, hardware…

Robotics · Computer Science 2023-04-25 Justin Ziegenbein , Manuel Schrick , Marko Thiel , Johannes Hinckeldeyn , Jochen Kreutzfeldt

The 3D pose estimation from a single image is a challenging problem due to depth ambiguity. One type of the previous methods lifts 2D joints, obtained by resorting to external 2D pose detectors, to the 3D space. However, this type of…

Computer Vision and Pattern Recognition · Computer Science 2021-04-09 Changgong Zhang , Fangneng Zhan , Yuan Chang

Multi-antenna techniques capable of exploiting the elevation dimension are anticipated to be an important air-interface enhancement targeted to handle the expected growth in mobile traffic. In order to enable the development and evaluation…

We propose a robust and accurate method for estimating the 3D poses of two hands in close interaction from a single color image. This is a very challenging problem, as large occlusions and many confusions between the joints may happen.…

Computer Vision and Pattern Recognition · Computer Science 2022-04-20 Shreyas Hampali , Sayan Deb Sarkar , Mahdi Rad , Vincent Lepetit

Accurate hand pose estimation at joint level has several uses on human-robot interaction, user interfacing and virtual reality applications. Yet, it currently is not a solved problem. The novel deep learning techniques could make a great…

Human-Computer Interaction · Computer Science 2017-07-20 Francisco Gomez-Donoso , Sergio Orts-Escolano , Miguel Cazorla

This paper addresses the mobility problem in massive multiple-input multiple-output systems, which leads to significant performance losses in the practical deployment of the fifth generation mobile communication networks. We propose a novel…

Information Theory · Computer Science 2022-08-04 Weidong Li , Haifan Yin , Ziao Qin , Yandi Cao , Merouane Debbah