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Since ancient Greece, handshaking has been commonly practiced between two people as a friendly gesture to express trust and respect, or form a mutual agreement. In this paper, we show that such physical contact can be used to bootstrap…

Cryptography and Security · Computer Science 2018-01-24 Yiran Shen , Fengyuan Yang , Bowen Du , Weitao Xu , Chengwen Luo , Hongkai Wen

Hand motion plays a central role in human interaction, yet modeling realistic 4D hand motion (i.e., 3D hand pose sequences over time) remains challenging. Research in this area is typically divided into two tasks: (1) Estimation approaches…

Computer Vision and Pattern Recognition · Computer Science 2026-02-26 Zhihao Sun , Tong Wu , Ruirui Tu , Daoguo Dong , Zuxuan Wu

Making contactless payments using a smartwatch is increasingly popular, but this payment medium lacks traditional biometric security measures such as facial or fingerprint recognition. In 2022, Sturgess et al. proposed WatchAuth, a system…

Cryptography and Security · Computer Science 2023-07-12 George Webber

3D human pose estimation using monocular images is an important yet challenging task. Existing 3D pose detection methods exhibit excellent performance under normal conditions however their performance may degrade due to occlusion. Recently…

Computer Vision and Pattern Recognition · Computer Science 2022-03-09 Mehwish Ghafoor , Arif Mahmood

Tracking the pose of an object while it is being held and manipulated by a robot hand is difficult for vision-based methods due to significant occlusions. Prior works have explored using contact feedback and particle filters to localize…

Robotics · Computer Science 2020-11-09 Jacky Liang , Ankur Handa , Karl Van Wyk , Viktor Makoviychuk , Oliver Kroemer , Dieter Fox

Wearable computing is one of the fastest growing technologies today. Smart watches are poised to take over at least of half the wearable devices market in the near future. Smart watch screen size, however, is a limiting factor for growth,…

Computer Vision and Pattern Recognition · Computer Science 2017-05-09 Seyed A Sajjadi , Danial Moazen , Ani Nahapetian

3D hand tracking from a monocular video is a very challenging problem due to hand interactions, occlusions, left-right hand ambiguity, and fast motion. Most existing methods rely on RGB inputs, which have severe limitations under low-light…

Computer Vision and Pattern Recognition · Computer Science 2023-12-22 Christen Millerdurai , Diogo Luvizon , Viktor Rudnev , André Jonas , Jiayi Wang , Christian Theobalt , Vladislav Golyanik

In this paper, we strive to answer two questions: What is the current state of 3D hand pose estimation from depth images? And, what are the next challenges that need to be tackled? Following the successful Hands In the Million Challenge…

We present a novel method for estimation of 3D human poses from a multi-camera setup, employing distributed smart edge sensors coupled with a backend through a semantic feedback loop. 2D joint detection for each camera view is performed…

Computer Vision and Pattern Recognition · Computer Science 2021-07-06 Simon Bultmann , Sven Behnke

Forecasting hand motion and pose from an egocentric perspective is essential for understanding human intention. However, existing methods focus solely on predicting positions without considering articulation, and only when the hands are…

Computer Vision and Pattern Recognition · Computer Science 2025-04-14 Masashi Hatano , Zhifan Zhu , Hideo Saito , Dima Damen

As computing devices become increasingly integrated into daily life, there is a growing need for intuitive, always-available interaction methods, even when users' hands are occupied. In this paper, we introduce Grab-n-Go, the first wearable…

Human-Computer Interaction · Computer Science 2025-08-18 Chi-Jung Lee , Jiaxin Li , Tianhong Catherine Yu , Ruidong Zhang , Vipin Gunda , François Guimbretière , Cheng Zhang

ThumbTrak is a novel wearable input device that recognizes 12 micro-finger poses in real-time. Poses are characterized by the thumb touching each of the 12 phalanges on the hand. It uses a thumb-ring, built with a flexible printed circuit…

Human-Computer Interaction · Computer Science 2021-12-28 Wei Sun , Franklin Mingzhe Li , Congshu Huang , Zhenyu Lei , Benjamin Steeper , Songyun Tao , Feng Tian , Cheng Zhang

Estimating 3D hand pose from 2D images is a difficult, inverse problem due to the inherent scale and depth ambiguities. Current state-of-the-art methods train fully supervised deep neural networks with 3D ground-truth data. However,…

Computer Vision and Pattern Recognition · Computer Science 2020-08-05 Adrian Spurr , Umar Iqbal , Pavlo Molchanov , Otmar Hilliges , Jan Kautz

Tracking body and hand motions in the 3D space is essential for social and self-presence in augmented and virtual environments. Unlike the popular 3D pose estimation setting, the problem is often formulated as inside-out tracking based on…

Computer Vision and Pattern Recognition · Computer Science 2020-12-08 Mathias Parger , Chengcheng Tang , Yuanlu Xu , Christopher Twigg , Lingling Tao , Yijing Li , Robert Wang , Markus Steinberger

The last few decades have witnessed an emerging trend of wearable soft sensors; however, there are important signal-processing challenges for soft sensors that still limit their practical deployment. They are error-prone when displaced,…

Human-Computer Interaction · Computer Science 2023-01-19 Xiaowei Chen , Xiao Jiang , Jiawei Fang , Shihui Guo , Juncong Lin , Minghong Liao , Guoliang Luo , Hongbo Fu

Designing of touchless user interface is gaining popularity in various contexts. Using such interfaces, users can interact with electronic devices even when the hands are dirty or non-conductive. Also, user with partial physical disability…

Human-Computer Interaction · Computer Science 2019-04-05 Abhik Singla , Partha Pratim Roy , Debi Prosad Dogra

In this work, we build upon existing methods for occlusion-aware 3D pose detection in videos. We implement a two stage architecture that consists of the stacked hourglass network to produce 2D pose predictions, which are then inputted into…

Computer Vision and Pattern Recognition · Computer Science 2020-06-25 Justin Wang , Edward Xu , Kangrui Xue , Lukasz Kidzinski

Reconstructing the motion of objects from videos is a key component for embodied AI and robot manipulation. While diverse approaches to object pose tracking have been studied, they rely heavily on strong external priors, such as depth data…

Computer Vision and Pattern Recognition · Computer Science 2026-05-25 Jisu Shin , Junoh Lee , JunGyu Lee , Inhwan Bae , Dohyeon Lee , Hokyun Im , Youngwoon Lee , Hae-Gon Jeon

Contactless hand pose estimation requires sensors that provide precise spatial information and low computational complexity for real-time processing. Unlike vision-based systems, radar offers lighting independence and direct motion…

Signal Processing · Electrical Eng. & Systems 2024-06-21 Johanna Bräunig , Vanessa Wirth , Marc Stamminger , Ingrid Ullmann , Martin Vossiek

There is a growing interest in using pose estimation algorithms for video-based assessment of Bradykinesia in Parkinson's Disease (PD) to facilitate remote disease assessment and monitoring. However, the accuracy of pose estimation…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Gabriela T. Acevedo Trebbau , Andrea Bandini , Diego L. Guarin
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