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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 introduce a novel device architecture that merges memristive devices with light-sensing surfaces, for energy-efficient motion recognition at the edge. Our light-sensing surface captures motion data through in-sensor…

Human-Computer Interaction · Computer Science 2025-06-10 Hritom Das , Imran Fahad , SNB Tushar , Sk Hasibul Alam , Graham Buchanan , Danny Scott , Garrett S. Rose , Sai Swaminathan

Wireless charging pads are common, yet their functionality is mainly restricted to charging. Existing gesture recognition techniques, such as those based on machine vision and WiFi, have drawbacks like high costs and poor precision. This…

Human-Computer Interaction · Computer Science 2025-01-28 Bojun Zhang

The recent introduction of depth cameras like Leap Motion Controller allows researchers to exploit the depth information to recognize hand gesture more robustly. This paper proposes a novel hand gesture recognition system with Leap Motion…

Computer Vision and Pattern Recognition · Computer Science 2017-11-15 Youchen Du , Shenglan Liu , Lin Feng , Menghui Chen , Jie Wu

Recognition of hand gestures is one of the most fundamental tasks in human-robot interaction. Sparse representation based methods have been widely used due to their efficiency and low demands on the training data. Recently, nonconvex…

Computer Vision and Pattern Recognition · Computer Science 2022-04-27 Jing Qin , Joshua Ashley , Biyun Xie

Hand and arm gesture recognition using the radio frequency (RF) sensing modality proves valuable in manmachine interface and smart environment. In this paper, we use curve matching techniques for measuring the similarity of the maximum…

Signal Processing · Electrical Eng. & Systems 2019-11-12 Moeness G. Amin , Zhengxin Zeng , Tao Shan

Vision based human pose estimation is an non-invasive technology for Human-Computer Interaction (HCI). Direct use of the hand as an input device provides an attractive interaction method, with no need for specialized sensing equipment, such…

Computer Vision and Pattern Recognition · Computer Science 2020-06-02 Nicholas Santavas , Ioannis Kansizoglou , Loukas Bampis , Evangelos Karakasis , Antonios Gasteratos

Gestures performed accompanying the voice are essential for voice interaction to convey complementary semantics for interaction purposes such as wake-up state and input modality. In this paper, we investigated voice-accompanying…

Human-Computer Interaction · Computer Science 2023-03-21 Zisu Li , Cheng Liang , Yuntao Wang , Yue Qin , Chun Yu , Yukang Yan , Mingming Fan , Yuanchun Shi

Shadows are common aspect of images and when left undetected can hinder scene understanding and visual processing. We propose a simple yet effective approach based on reflectance to detect shadows from single image. An image is first…

Computer Vision and Pattern Recognition · Computer Science 2018-07-13 Sri Kalyan Yarlagadda , Fengqing Zhu

In recent years, deep learning algorithms have become increasingly more prominent for their unparalleled ability to automatically learn discriminant features from large amounts of data. However, within the field of electromyography-based…

We propose a new technique for recognition of dumb person hand gesture in real world environment. In this technique, the hand image containing the gesture is preprocessed and then hand region is segmented by convergent the RGB color image…

Computer Vision and Pattern Recognition · Computer Science 2022-02-01 Muhammad Asim Khan , Lan Hong , Sajjad Ahmed

Gestures are a key component of non-verbal communication in traffic, often helping pedestrian-to-driver interactions when formal traffic rules may be insufficient. This problem becomes more apparent when autonomous vehicles (AVs) struggle…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Alif Rizqullah Mahdi , Mahdi Rezaei , Natasha Merat

In sensitive scenarios, such as meetings, negotiations, and team sports, messages must be conveyed without detection by non-collaborators. Previous methods, such as encrypting messages, eye contact, and micro-gestures, had problems with…

Human-Computer Interaction · Computer Science 2024-11-22 Hongxin Li , Jingsheng Tang , Xuechao Xu , Wei Dai , Yaru Liu , Junhao Xiao , Huimin Lu , Zongtan Zhou

Recognizing people by faces and other biometrics has been extensively studied in computer vision. But these techniques do not work for identifying the wearer of an egocentric (first-person) camera because that person rarely (if ever)…

Computer Vision and Pattern Recognition · Computer Science 2020-11-19 Satoshi Tsutsui , Yanwei Fu , David Crandall

Breathing is a spontaneous but controllable body function that can be used for hands-free interaction. Our work introduces "iBreath", a novel system to detect breathing gestures similar to clicks using bio-impedance. We evaluated iBreath's…

Human-Computer Interaction · Computer Science 2025-07-08 Mengxi Liu , Daniel Geißler , Deepika Gurung , Hymalai Bello , Bo Zhou , Sizhen Bian , Paul Lukowicz , Passant Elagroudy

Humans are able to convey different messages using only touch. Equipping robots with the ability to understand social touch adds another modality in which humans and robots can communicate. In this paper, we present a social gesture…

Robotics · Computer Science 2025-03-24 Dakarai Crowder , Kojo Vandyck , Xiping Sun , James McCann , Wenzhen Yuan

In this work, an extensive review of literature in the field of gesture recognition carried out along with the implementation of a simple classification system for hand hygiene stages based on deep learning solutions. A subset of robust…

Computer Vision and Pattern Recognition · Computer Science 2021-08-19 Rashmi Bakshi

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

Unlike traditional robotic hands, underactuated compliant hands are challenging to model due to inherent uncertainties. Consequently, pose estimation of a grasped object is usually performed based on visual perception. However, visual…

Robotics · Computer Science 2024-01-18 Osher Azulay , Inbar Ben-David , Avishai Sintov

Hand gestures can provide a natural means of human-computer interaction and enable people who cannot speak to communicate efficiently. Existing hand gesture recognition methods heavily depend on pre-defined gestures, however, motor-impaired…

Machine Learning · Computer Science 2024-06-13 Riyad Bin Rafiq , Weishi Shi , Mark V. Albert