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Wi-Fi sensing has emerged as a promising technique for gesture recognition, yet its practical deployment is hindered by environmental sensitivity and device placement challenges. To overcome these limitations we propose Wi-Fi Range and…

Audio and Speech Processing · Electrical Eng. & Systems 2026-03-25 Jessica Sanson , Rahul C. Shah , Yazhou Zhu , Rafael Rosales , Valerio Frascolla

In this paper, we propose a deep learning approach for smartphone user identification based on analyzing motion signals recorded by the accelerometer and the gyroscope, during a single tap gesture performed by the user on the screen. We…

Machine Learning · Computer Science 2020-03-24 Cezara Benegui , Radu Tudor Ionescu

After a few years of research in the field of through-the-wall radar (TWR) human activity recognition (HAR), I found that we seem to be stuck in the mindset of training on radar image data through neural network models. The earliest related…

Computer Vision and Pattern Recognition · Computer Science 2025-06-06 Weicheng Gao

A novel, real-time, mm-Wave radar-based static hand shape classification algorithm and implementation are proposed. The method finds several applications in low cost and privacy sensitive touchless control technology using 60 Ghz radar as…

Computer Vision and Pattern Recognition · Computer Science 2022-10-25 Athmanarayanan Lakshmi Narayanan , Asma Beevi K. T , Haoyang Wu , Jingyi Ma , W. Margaret Huang

Dynamic hand gesture recognition has attracted increasing interests because of its importance for human computer interaction. In this paper, we propose a new motion feature augmented recurrent neural network for skeleton-based dynamic hand…

Computer Vision and Pattern Recognition · Computer Science 2018-05-11 Xinghao Chen , Hengkai Guo , Guijin Wang , Li Zhang

Hand gesture detection is a well-explored area in computer vision with applications in various forms of Human-Computer Interactions. In this work, we propose a technique for simultaneous hand gesture classification, handedness detection,…

Computer Vision and Pattern Recognition · Computer Science 2023-03-06 Sichao Li , Sean Banerjee , Natasha Kholgade Banerjee , Soumyabrata Dey

Accurately identifying hands in images is a key sub-task for human activity understanding with wearable first-person point-of-view cameras. Traditional hand segmentation approaches rely on a large corpus of manually labeled data to generate…

Computer Vision and Pattern Recognition · Computer Science 2018-06-18 Yubo Zhang , Vishnu Naresh Boddeti , Kris M. Kitani

IMUs are gaining significant importance in the field of hand gesture analysis, trajectory detection and kinematic functional study. An Inertial Measurement Unit (IMU) consists of tri-axial accelerometers and gyroscopes which can together be…

Signal Processing · Electrical Eng. & Systems 2020-05-04 Karush Suri , Rinki Gupta

Hand segmentation and fingertip detection play an indispensable role in hand gesture-based human-machine interaction systems. In this study, we propose a method to discriminate hand components and to locate fingertips in RGB-D images. The…

Computer Vision and Pattern Recognition · Computer Science 2020-03-12 Duong Hai Nguyen , Tai Nhu Do , In-Seop Na , Soo-Hyung Kim

We describe a learning-based approach to hand-eye coordination for robotic grasping from monocular images. To learn hand-eye coordination for grasping, we trained a large convolutional neural network to predict the probability that…

Machine Learning · Computer Science 2016-08-30 Sergey Levine , Peter Pastor , Alex Krizhevsky , Deirdre Quillen

The low resolution of objects of interest in aerial images makes pedestrian detection and action detection extremely challenging tasks. Furthermore, using deep convolutional neural networks to process large images can be demanding in terms…

Computer Vision and Pattern Recognition · Computer Science 2018-07-17 Amir Soleimani , Nasser M. Nasrabadi

This paper proposes three simple, compact yet effective representations of depth sequences, referred to respectively as Dynamic Depth Images (DDI), Dynamic Depth Normal Images (DDNI) and Dynamic Depth Motion Normal Images (DDMNI). These…

Computer Vision and Pattern Recognition · Computer Science 2017-01-10 Pichao Wang , Wanqing Li , Song Liu , Zhimin Gao , Chang Tang , Philip Ogunbona

We revisit the study of a wrist-mounted camera system (referred to as HandCam) for recognizing activities of hands. HandCam has two unique properties as compared to egocentric systems (referred to as HeadCam): (1) it avoids the need to…

Computer Vision and Pattern Recognition · Computer Science 2016-03-23 Cheng-Sheng Chan , Shou-Zhong Chen , Pei-Xuan Xie , Chiung-Chih Chang , Min Sun

We investigate a new problem of detecting hands and recognizing their physical contact state in unconstrained conditions. This is a challenging inference task given the need to reason beyond the local appearance of hands. The lack of…

Computer Vision and Pattern Recognition · Computer Science 2020-10-20 Supreeth Narasimhaswamy , Trung Nguyen , Minh Hoai

Human computer interaction facilitates intelligent communication between humans and computers, in which gesture recognition plays a prominent role. This paper proposes a machine learning system to identify dynamic gestures using tri-axial…

Human-Computer Interaction · Computer Science 2018-09-19 Gautham Krishna G , Karthik Subramanian Nathan , Yogesh Kumar B , Ankith A Prabhu , Ajay Kannan , Vineeth Vijayaraghavan

This paper presents a convolutional neural network based approach for estimating the relative pose between two cameras. The proposed network takes RGB images from both cameras as input and directly produces the relative rotation and…

Computer Vision and Pattern Recognition · Computer Science 2017-07-31 Iaroslav Melekhov , Juha Ylioinas , Juho Kannala , Esa Rahtu

We present in this paper a new approach for hand gesture analysis that allows digit recognition. The analysis is based on extracting a set of features from a hand image and then combining them by using an induction graph. The most important…

Computer Vision and Pattern Recognition · Computer Science 2009-06-30 Ahmed Ben Jmaa , Walid Mahdi , Yousra Ben Jemaa , Abdelmajid Ben Hamadou

Multi-fingered hands could be used to achieve many dexterous manipulation tasks, similarly to humans, and tactile sensing could enhance the manipulation stability for a variety of objects. However, tactile sensors on multi-fingered hands…

Radar sensors can be used for analyzing the induced frequency shifts due to micro-motions in both range and velocity dimensions identified as micro-Doppler ($\boldsymbol{\mu}$-D) and micro-Range ($\boldsymbol{\mu}$-R), respectively.…

Computer Vision and Pattern Recognition · Computer Science 2018-06-13 Sherif Abdulatif , Qian Wei , Fady Aziz , Bernhard Kleiner , Urs Schneider

We propose a method for extracting very accurate masks of hands in egocentric views. Our method is based on a novel Deep Learning architecture: In contrast with current Deep Learning methods, we do not use upscaling layers applied to a…

Computer Vision and Pattern Recognition · Computer Science 2016-08-29 Tadej Vodopivec , Vincent Lepetit , Peter Peer