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Humans interact in rich and diverse ways with the environment. However, the representation of such behavior by artificial agents is often limited. In this work we present \textit{motion concepts}, a novel multimodal representation of human…

Computer Vision and Pattern Recognition · Computer Science 2019-03-07 Miguel Vasco , Francisco S. Melo , David Martins de Matos , Ana Paiva , Tetsunari Inamura

Object detection methods trained on a fixed set of known classes struggle to detect objects of unknown classes in the open-world setting. Current fixes involve adding approximate supervision with pseudo-labels corresponding to candidate…

Computer Vision and Pattern Recognition · Computer Science 2024-10-11 Mısra Yavuz , Fatma Güney

A key challenge in the task of human pose and shape estimation is occlusion, including self-occlusions, object-human occlusions, and inter-person occlusions. The lack of diverse and accurate pose and shape training data becomes a major…

Computer Vision and Pattern Recognition · Computer Science 2022-03-02 Kaibing Yang , Renshu Gu , Maoyu Wang , Masahiro Toyoura , Gang Xu

In open set recognition (OSR), almost all existing methods are designed specially for recognizing individual instances, even these instances are collectively coming in batch. Recognizers in decision either reject or categorize them to some…

Machine Learning · Computer Science 2020-03-24 Chuanxing Geng , Songcan Chen

Video facial expression recognition is useful for many applications and received much interest lately. Although some solutions give really good results in a controlled environment (no occlusion), recognition in the presence of partial…

Computer Vision and Pattern Recognition · Computer Science 2021-12-06 Delphine Poux , Benjamin Allaert , Nacim Ihaddadene , Ioan Marius Bilasco , Chaabane Djeraba , Mohammed Bennamoun

The performance of current Scene Graph Generation models is severely hampered by some hard-to-distinguish predicates, e.g., "woman-on/standing on/walking on-beach" or "woman-near/looking at/in front of-child". While general SGG models are…

Computer Vision and Pattern Recognition · Computer Science 2022-04-11 Xinyu Lyu , Lianli Gao , Yuyu Guo , Zhou Zhao , Hao Huang , Heng Tao Shen , Jingkuan Song

Current facial expression recognition (FER) models are often designed in a supervised learning manner and thus are constrained by the lack of large-scale facial expression images with high-quality annotations. Consequently, these models…

Computer Vision and Pattern Recognition · Computer Science 2024-11-27 Zengqun Zhao , Yu Cao , Shaogang Gong , Ioannis Patras

Prompt learning has attracted increasing attention in the graph domain as a means to bridge the gap between pretext and downstream tasks. Existing studies on heterogeneous graph prompting typically use feature prompts to modify node…

Machine Learning · Computer Science 2025-02-14 Feiyang Wang , Zhongbao Zhang , Junda Ye , Li Sun , Jianzhong Qi

Hand gesture classification using high-quality structured data such as videos, images, and hand skeletons is a well-explored problem in computer vision. Leveraging low-power, cost-effective biosignals, e.g. surface electromyography (sEMG),…

Physical human-robot interactions (pHRI) are less efficient and communicative than human-human interactions, and a key reason is a lack of informative sense of touch in robotic systems. Interpreting human touch gestures is a nuanced,…

Robotics · Computer Science 2024-12-24 Bibit Bianchini , Prateek Verma , Kenneth Salisbury

Detecting face forgeries using CLIP has recently emerged as a promising and increasingly popular research direction. Owing to its rich visual knowledge acquired through large-scale pretraining, most existing methods typically rely on the…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Enrui Yang , Yuezun Li

Most existing hand gesture recognition (HGR) systems are limited to a predefined set of gestures. However, users and developers often want to recognize new, unseen gestures. This is challenging due to the vast diversity of all plausible…

Computer Vision and Pattern Recognition · Computer Science 2023-09-21 Esha Uboweja , David Tian , Qifei Wang , Yi-Chun Kuo , Joe Zou , Lu Wang , George Sung , Matthias Grundmann

Objective: The objective of the study is to efficiently increase the expressivity of surface electromyography-based (sEMG) gesture recognition systems. Approach: We use a problem transformation approach, in which actions were subset into…

As we enter into the big data age and an avalanche of images have become readily available, recognition systems face the need to move from close, lab settings where the number of classes and training data are fixed, to dynamic scenarios…

Computer Vision and Pattern Recognition · Computer Science 2016-04-11 Rocco De Rosa , Thomas Mensink , Barbara Caputo

The ability of robots to recognize human gestures facilitates a natural and accessible human-robot collaboration. However, most work in gesture recognition remains rooted in reference frame-dependent representations. This poses a challenge…

Robotics · Computer Science 2025-12-12 Arno Verduyn , Maxim Vochten , Joris De Schutter

Open-set object recognition aims to identify if an object is from a class that has been encountered during training or not. To perform open-set object recognition accurately, a key challenge is how to reduce the reliance on…

Computer Vision and Pattern Recognition · Computer Science 2023-12-22 Haoxuan Qu , Xiaofei Hui , Yujun Cai , Jun Liu

Humans have a natural instinct to identify unknown object instances in their environments. The intrinsic curiosity about these unknown instances aids in learning about them, when the corresponding knowledge is eventually available. This…

Computer Vision and Pattern Recognition · Computer Science 2021-05-11 K J Joseph , Salman Khan , Fahad Shahbaz Khan , Vineeth N Balasubramanian

Multimodal Emotion Recognition in Conversation (MERC) significantly enhances emotion recognition performance by integrating complementary emotional cues from text, audio, and visual modalities. While existing methods commonly utilize…

Multimedia · Computer Science 2026-02-12 Xinyi Che , Wenbo Wang , Jian Guan , Qijun Zhao

This study mainly explores the application of natural gesture recognition based on computer vision in human-computer interaction, aiming to improve the fluency and naturalness of human-computer interaction through gesture recognition…

Computer Vision and Pattern Recognition · Computer Science 2024-12-25 Fenghua Shao , Tong Zhang , Shang Gao , Qi Sun , Liuqingqing Yang

In this paper, we propose a methodology for early recognition of human activities from videos taken with a first-person viewpoint. Early recognition, which is also known as activity prediction, is an ability to infer an ongoing activity at…

Computer Vision and Pattern Recognition · Computer Science 2015-07-07 M. S. Ryoo , Thomas J. Fuchs , Lu Xia , J. K. Aggarwal , Larry Matthies