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Acquiring spatio-temporal states of an action is the most crucial step for action classification. In this paper, we propose a data level fusion strategy, Motion Fused Frames (MFFs), designed to fuse motion information into static images as…

Computer Vision and Pattern Recognition · Computer Science 2018-04-27 Okan Köpüklü , Neslihan Köse , Gerhard Rigoll

In the present paper, we propose a source camera identification method for mobile devices based on deep learning. Recently, convolutional neural networks (CNNs) have shown a remarkable performance on several tasks such as image recognition,…

Computer Vision and Pattern Recognition · Computer Science 2018-01-25 David Freire-Obregón , Fabio Narducci , Silvio Barra , Modesto Castrillón-Santana

The widespread use of smartphones gives rise to new security and privacy concerns. Smartphone thefts account for the largest percentage of thefts in recent crime statistics. Using a victim's smartphone, the attacker can launch impersonation…

Cryptography and Security · Computer Science 2017-03-10 Wei-Han Lee , Ruby Lee

Human operators are still frequently exposed to hazardous environments such as disaster zones and industrial facilities, where intuitive and reliable teleoperation of mobile robots and Unmanned Aerial Vehicles (UAVs) is essential. In this…

Speaker identification is a powerful, non-invasive and in-expensive biometric technique. The recognition accuracy, however, deteriorates when noise levels affect a specific band of frequency. In this paper, we present a sub-band based…

Machine Learning · Computer Science 2007-05-23 Unathi Mahola , Fulufhelo V. Nelwamondo , Tshilidzi Marwala

To enhance robotic grasping capabilities, we are developing new contactless fingertip sensors to measure distance in close proximity and simultaneously detect the type of material and the interior structure. These sensors are referred to as…

Robotics · Computer Science 2023-11-20 Cheng Fang , Di Wang , Fengzhi Guo , Jun Zou , Dezhen Song

Hand gestures are a primary output of the human motor system, yet the decoding of their neuromuscular signatures remains a bottleneck for basic neuroscience and assistive technologies such as prosthetics. Traditional human-machine interface…

Machine Learning · Computer Science 2025-06-23 Eion Tyacke , Kunal Gupta , Jay Patel , Rui Li

This paper explores supervised techniques for continuous anomaly detection from biometric touch screen data. A capacitive sensor array used to mimic a touch screen as used to collect touch and swipe gestures from participants. The gestures…

Machine Learning · Computer Science 2018-09-11 John Peruzzi , Phillip Andrew Wingard , David Zucker

Gestures play a key role in human communication. Recent methods for co-speech gesture generation, while managing to generate beat-aligned motions, struggle generating gestures that are semantically aligned with the utterance. Compared to…

Computer Vision and Pattern Recognition · Computer Science 2024-03-27 Muhammad Hamza Mughal , Rishabh Dabral , Ikhsanul Habibie , Lucia Donatelli , Marc Habermann , Christian Theobalt

Emotion recognition and touch gesture decoding are crucial for advancing human-robot interaction (HRI), especially in social environments where emotional cues and tactile perception play important roles. However, many humanoid robots, such…

Human-Computer Interaction · Computer Science 2025-01-03 Yuanbo Hou , Qiaoqiao Ren , Wenwu Wang , Dick Botteldooren

Synthesizing synchronized and natural co-speech gesture videos remains a formidable challenge. Recent approaches have leveraged motion graphs to harness the potential of existing video data. To retrieve an appropriate trajectory from the…

Computer Vision and Pattern Recognition · Computer Science 2025-12-03 Yafei Song , Peng Zhang , Bang Zhang

In this paper, an integrated passive sensing and communication system working in 60 GHz band is elaborated, and the sensing performance is investigated in an application of hand gesture recognition. Specifically, in this integrated system,…

Signal Processing · Electrical Eng. & Systems 2022-03-29 Jie Li , Chao Yu , Yan Luo , Yifei Sun , Rui Wang

We introduce MunchSonic, an AI-powered active acoustic sensing system integrated into eyeglasses to track fine-grained dietary actions. MunchSonic emits inaudible ultrasonic waves from the eyeglass frame, with the reflected signals…

Human-Computer Interaction · Computer Science 2024-08-06 Saif Mahmud , Devansh Agarwal , Ashwin Ajit , Qikang Liang , Thalia Viranda , Francois Guimbretiere , Cheng Zhang

Millimeter wave (mmWave) radar sensors play a vital role in hand gesture recognition (HGR) by detecting subtle motions while preserving user privacy. However, the limited scale of radar datasets hinders the performance. Existing synthetic…

Human-Computer Interaction · Computer Science 2025-04-24 Jiaqi Tang , Xinbo Xu , Yinsong Xu , Qingchao Chen

Hand gestures are a natural means of interaction in Augmented Reality and Virtual Reality (AR/VR) applications. Recently, there has been an increased focus on removing the dependence of accurate hand gesture recognition on complex sensor…

Computer Vision and Pattern Recognition · Computer Science 2019-12-09 Varun Jain , Shivam Aggarwal , Suril Mehta , Ramya Hebbalaguppe

Many vision based applications have used fingertips to track or manipulate gestures in their applications. Gesture identification is a natural way to pass the signals to the machine, as the human express its feelings most of the time with…

Computer Vision and Pattern Recognition · Computer Science 2012-12-04 J. L. Raheja , Karen Das , Ankit Chaudhary

We present an on-device real-time hand gesture recognition (HGR) system, which detects a set of predefined static gestures from a single RGB camera. The system consists of two parts: a hand skeleton tracker and a gesture classifier. We use…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 George Sung , Kanstantsin Sokal , Esha Uboweja , Valentin Bazarevsky , Jonathan Baccash , Eduard Gabriel Bazavan , Chuo-Ling Chang , Matthias Grundmann

Hand gesture recognition using radar often relies on computationally expensive fast Fourier transforms. This paper proposes an alternative approach that bypasses fast Fourier transforms using resonate-and-fire neurons. These neurons…

Signal Processing · Electrical Eng. & Systems 2024-06-03 Ahmed Shaaban , Zeineb Chaabouni , Maximilian Strobel , Wolfgang Furtner , Robert Weigel , Fabian Lurz

Recently, the popularity of depth-sensors such as Kinect has made depth videos easily available while its advantages have not been fully exploited. This paper investigates, for gesture recognition, to explore the spatial and temporal…

Computer Vision and Pattern Recognition · Computer Science 2016-11-29 Jiali Duan , Shuai Zhou , Jun Wan , Xiaoyuan Guo , Stan Z. Li

Perceptual processes are frequently multi-modal. This is the case of haptic perception. Data sets of visual and haptic sensory signals have been compiled in the past, especially when it comes to the exploration of textured surfaces. These…

Robotics · Computer Science 2023-09-19 Alexis W. M. Devillard , Aruna Ramasamy , Damien Faux , Vincent Hayward , Etienne Burdet