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Camera-based temporal 3D object detection has shown impressive results in autonomous driving, with offline models improving accuracy by using future frames. Knowledge distillation (KD) can be an appealing framework for transferring rich…

Computer Vision and Pattern Recognition · Computer Science 2025-12-10 Haowen Zheng , Hu Zhu , Lu Deng , Weihao Gu , Yang Yang , Yanyan Liang

Online temporal action localization from an untrimmed video stream is a challenging problem in computer vision. It is challenging because of i) in an untrimmed video stream, more than one action instance may appear, including background…

Computer Vision and Pattern Recognition · Computer Science 2020-03-18 Da-Hye Yoon , Nam-Gyu Cho , Seong-Whan Lee

In instance-level detection tasks (e.g., object detection), reducing input resolution is an easy option to improve runtime efficiency. However, this option traditionally hurts the detection performance much. This paper focuses on boosting…

Computer Vision and Pattern Recognition · Computer Science 2021-09-16 Lu Qi , Jason Kuen , Jiuxiang Gu , Zhe Lin , Yi Wang , Yukang Chen , Yanwei Li , Jiaya Jia

Action anticipation involves forecasting future actions by connecting past events to future ones. However, this reasoning ignores the real-life hierarchy of events which is considered to be composed of three main parts: past, present, and…

Computer Vision and Pattern Recognition · Computer Science 2023-09-13 Mohammed Guermal , Francois Bremond , Rui Dai , Abid Ali

Single-domain generalization is essential for object detection, particularly when training models on a single source domain and evaluating them on unseen target domains. Domain shifts, such as changes in weather, lighting, or scene…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Junseok Lee , Sungho Shin , Seongju Lee , Kyoobin Lee

As a general model compression paradigm, feature-based knowledge distillation allows the student model to learn expressive features from the teacher counterpart. In this paper, we mainly focus on designing an effective feature-distillation…

Computer Vision and Pattern Recognition · Computer Science 2023-02-13 Guang Yang , Yin Tang , Jun Li , Jianhua Xu , Xili Wan

Online action recognition is an important task for human centered intelligent services, which is still difficult to achieve due to the varieties and uncertainties of spatial and temporal scales of human actions. In this paper, we propose…

Computer Vision and Pattern Recognition · Computer Science 2020-11-04 Guoliang Liu , Qinghui Zhang , Yichao Cao , Junwei Li , Hao Wu , Guohui Tian

Knowledge distillation(KD) is a widely-used technique to train compact models in object detection. However, there is still a lack of study on how to distill between heterogeneous detectors. In this paper, we empirically find that better FPN…

Computer Vision and Pattern Recognition · Computer Science 2022-12-01 Weihan Cao , Yifan Zhang , Jianfei Gao , Anda Cheng , Ke Cheng , Jian Cheng

Action recognition is an important research topic in computer vision. It is the basic work for visual understanding and has been applied in many fields. Since human actions can vary in different environments, it is difficult to infer…

Computer Vision and Pattern Recognition · Computer Science 2019-10-23 Dong Cao , Lisha Xu , Dongdong Zhang

Feature maps contain rich information about image intensity and spatial correlation. However, previous online knowledge distillation methods only utilize the class probabilities. Thus in this paper, we propose an online knowledge…

Machine Learning · Computer Science 2020-06-09 Inseop Chung , SeongUk Park , Jangho Kim , Nojun Kwak

In online action detection, the goal is to detect the start of an action in a video stream as soon as it happens. For instance, if a child is chasing a ball, an autonomous car should recognize what is going on and respond immediately. This…

Computer Vision and Pattern Recognition · Computer Science 2016-08-31 Roeland De Geest , Efstratios Gavves , Amir Ghodrati , Zhenyang Li , Cees Snoek , Tinne Tuytelaars

Educational data mining (EDM) is a part of applied computing that focuses on automatically analyzing data from learning contexts. Early prediction for identifying at-risk students is a crucial and widely researched topic in EDM research. It…

Machine Learning · Computer Science 2024-12-20 Sukrit Leelaluk , Cheng Tang , Valdemar Švábenský , Atsushi Shimada

Dense visual prediction tasks, such as detection and segmentation, are crucial for time-critical applications (e.g., autonomous driving and video surveillance). While deep models achieve strong performance, their efficiency remains a…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Qizhen Lan , Qing Tian

Knowledge distillation is normally used to compress a big network, or teacher, onto a smaller one, the student, by training it to match its outputs. Recently, some works have shown that robustness against adversarial attacks can also be…

Machine Learning · Computer Science 2022-03-15 Javier Maroto , Guillermo Ortiz-Jiménez , Pascal Frossard

For a very long time, unsupervised learning for anomaly detection has been at the heart of image processing research and a stepping stone for high performance industrial automation process. With the emergence of CNN, several methods have…

Computer Vision and Pattern Recognition · Computer Science 2023-06-19 Simon Thomine , Hichem Snoussi , Mahmoud Soua

We propose a technique that tackles action detection in multimodal videos under a realistic and challenging condition in which only limited training data and partially observed modalities are available. Common methods in transfer learning…

Computer Vision and Pattern Recognition · Computer Science 2018-07-31 Zelun Luo , Jun-Ting Hsieh , Lu Jiang , Juan Carlos Niebles , Li Fei-Fei

Video-based action recognition is one of the most popular topics in computer vision. With recent advances of selfsupervised video representation learning approaches, action recognition usually follows a two-stage training framework, i.e.,…

Computer Vision and Pattern Recognition · Computer Science 2022-05-03 Yang Zhou , Zhanhao He , Keyu Lu , Guanhong Wang , Gaoang Wang

Accurately detecting active objects undergoing state changes is essential for comprehending human interactions and facilitating decision-making. The existing methods for active object detection (AOD) primarily rely on visual appearance of…

Computer Vision and Pattern Recognition · Computer Science 2024-05-22 Dejie Yang , Yang Liu

Deep learning has shown its efficacy in extracting useful features to solve various computer vision tasks. However, when the structure of the data is complex and noisy, capturing effective information to improve performance is very…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Eun Som Jeon , Rahul Khurana , Aishani Pathak , Pavan Turaga

Action Prediction is aimed to determine what action is occurring in a video as early as possible, which is crucial to many online applications, such as predicting a traffic accident before it happens and detecting malicious actions in the…

Computer Vision and Pattern Recognition · Computer Science 2019-05-01 Dong Wang , Yuan Yuan , Qi Wang