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Face Presentation Attack Detection (PAD) is an important measure to prevent spoof attacks for face biometric systems. Many works based on Convolution Neural Networks (CNNs) for face PAD formulate the problem as an image-level binary…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Zuheng Ming , Zitong Yu , Musab Al-Ghadi , Muriel Visani , Muhammad MuzzamilLuqman , Jean-Christophe Burie

Recently, convolutional neural networks (CNNs) and attention mechanisms have been widely used in image denoising and achieved satisfactory performance. However, the previous works mostly use a single head to receive the noisy image,…

Computer Vision and Pattern Recognition · Computer Science 2022-11-07 Jiahong Zhang , Meijun Qu , Ye Wang , Lihong Cao

This paper proposes a novel multi-modal transformer network for detecting actions in untrimmed videos. To enrich the action features, our transformer network utilizes a new multi-modal attention mechanism that computes the correlations…

Computer Vision and Pattern Recognition · Computer Science 2023-06-01 Matthew Korban , Scott T. Acton , Peter Youngs

We present an attention based visual analysis framework to compute grasp-relevant information in order to guide grasp planning using a multi-fingered robotic hand. Our approach uses a computational visual attention model to locate regions…

Robotics · Computer Science 2018-09-13 Zhen Deng , Ge Gao , Simone Frintrop , Jianwei Zhang

Transformer plays a central role in many fundamental deep learning models, e.g., the ViT in computer vision and the BERT and GPT in natural language processing, whose effectiveness is mainly attributed to its multi-head attention (MHA)…

Machine Learning · Computer Science 2024-10-16 Shen Yuan , Hongteng Xu

Feature shifts have been shown to be useful for action recognition with CNN-based models since Temporal Shift Module (TSM) was proposed. It is based on frame-wise feature extraction with late fusion, and layer features are shifted along the…

Computer Vision and Pattern Recognition · Computer Science 2022-11-15 Ryota Hashiguchi , Toru Tamaki

Gesture recognition is a much studied research area which has myriad real-world applications including robotics and human-machine interaction. Current gesture recognition methods have focused on recognising isolated gestures, and existing…

Computer Vision and Pattern Recognition · Computer Science 2021-09-22 Harshala Gammulle , Simon Denman , Sridha Sridharan , Clinton Fookes

Vision Transformers have made remarkable progress in recent years, achieving state-of-the-art performance in most vision tasks. A key component of this success is due to the introduction of the Multi-Head Self-Attention (MHSA) module, which…

Computer Vision and Pattern Recognition · Computer Science 2025-02-04 Tianxiao Zhang , Bo Luo , Guanghui Wang

Accurate and real-time hand gesture recognition is essential for controlling advanced hand prostheses. Surface Electromyography (sEMG) signals obtained from the forearm are widely used for this purpose. Here, we introduce a novel hand…

Signal Processing · Electrical Eng. & Systems 2020-04-21 Ashwin De Silva , Malsha V. Perera , Kithmin Wickramasinghe , Asma M. Naim , Thilina Dulantha Lalitharatne , Simon L. Kappel

In this paper, we present a multi-scale Fully Convolutional Networks (MSP-RFCN) to robustly detect and classify human hands under various challenging conditions. In our approach, the input image is passed through the proposed network to…

Computer Vision and Pattern Recognition · Computer Science 2018-04-24 Ding Lu , Yong Wang , Robert Laganiere , Xinbin Luo , Shan Fu

Mobile virtual reality (VR) head mounted displays (HMD) have become popular among consumers in recent years. In this work, we demonstrate real-time egocentric hand gesture detection and localization on mobile HMDs. Our main contributions…

Computer Vision and Pattern Recognition · Computer Science 2017-12-15 Rohit Pandey , Marie White , Pavel Pidlypenskyi , Xue Wang , Christine Kaeser-Chen

Keypoint detection plays an important role in a wide range of applications. However, predicting keypoints of small objects such as human hands is a challenging problem. Recent works fuse feature maps of deep Convolutional Neural Networks…

Computer Vision and Pattern Recognition · Computer Science 2021-12-21 Renjie Li , Son Tran , Saurabh Garg , Katherine Lawler , Jane Alty , Quan Bai

The HGR is a quite challenging task as its performance is influenced by various aspects such as illumination variations, cluttered backgrounds, spontaneous capture, etc. The conventional CNN networks for HGR are following two stage pipeline…

Computer Vision and Pattern Recognition · Computer Science 2021-05-18 Monu Verma , Ayushi Gupta , santosh kumar Vipparthi

Vision transformers have shown excellent performance in computer vision tasks. As the computation cost of their self-attention mechanism is expensive, recent works tried to replace the self-attention mechanism in vision transformers with…

Computer Vision and Pattern Recognition · Computer Science 2022-11-30 Zimian Wei , Hengyue Pan , Lujun Li , Menglong Lu , Xin Niu , Peijie Dong , Dongsheng Li

Human action recognition remains an important yet challenging task. This work proposes a novel action recognition system. It uses a novel Multiple View Region Adaptive Multi-resolution in time Depth Motion Map (MV-RAMDMM) formulation…

Computer Vision and Pattern Recognition · Computer Science 2019-04-15 Mahmoud Al-Faris , John P. Chiverton , Yanyan Yang , David L. Ndzi

Micro-expression recognition (MER) presents a significant challenge due to the transient and subtle nature of the motion changes involved. In recent years, deep learning methods based on attention mechanisms have made some breakthroughs in…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Lijun Zhang , Yifan Zhang , Weicheng Tang , Xinzhi Sun , Xiaomeng Wang , Zhanshan Li

Hand gesture recognition based on surface electromyographic (sEMG) signals is a promising approach for developing Human-Machine Interfaces (HMIs) with a natural control, such as intuitive robot interfaces or poly-articulated prostheses.…

Signal Processing · Electrical Eng. & Systems 2023-06-21 Marcello Zanghieri

This paper introduces a novel attention mechanism, called dual attention, which is both efficient and effective. The dual attention mechanism consists of two parallel components: local attention generated by Convolutional Neural Networks…

Computer Vision and Pattern Recognition · Computer Science 2023-05-25 Zhengkai Jiang , Liang Liu , Jiangning Zhang , Yabiao Wang , Mingang Chen , Chengjie Wang

While transformers have begun to dominate many tasks in vision, applying them to large images is still computationally difficult. A large reason for this is that self-attention scales quadratically with the number of tokens, which in turn,…

Computer Vision and Pattern Recognition · Computer Science 2022-09-16 Daniel Bolya , Cheng-Yang Fu , Xiaoliang Dai , Peizhao Zhang , Judy Hoffman

Deep learning-based Hand Gesture Recognition (HGR) via surface Electromyogram (sEMG) signals has recently shown significant potential for development of advanced myoelectric-controlled prosthesis. Existing deep learning approaches,…

Signal Processing · Electrical Eng. & Systems 2022-04-01 Soheil Zabihi , Elahe Rahimian , Amir Asif , Arash Mohammadi