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Multiple-object tracking (MOT) is a challenging task that requires simultaneous reasoning about location, appearance, and identity of the objects in the scene over time. Our aim in this paper is to move beyond tracking-by-detection…

Computer Vision and Pattern Recognition · Computer Science 2022-10-27 Bruno Korbar , Andrew Zisserman

Temporal action detection (TAD) is an important yet challenging task in video analysis. Most existing works draw inspiration from image object detection and tend to reformulate it as a proposal generation - classification problem. However,…

Computer Vision and Pattern Recognition · Computer Science 2022-03-04 Chen Zhao , Merey Ramazanova , Mengmeng Xu , Bernard Ghanem

Open-set active learning (OSAL) aims to identify informative samples for annotation when unlabeled data may contain previously unseen classes-a common challenge in safety-critical and open-world scenarios. Existing approaches typically rely…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Chen-Chen Zong , Yu-Qi Chi , Xie-Yang Wang , Yan Cui , Sheng-Jun Huang

By informing the onset of the degradation process, health status evaluation serves as a significant preliminary step for reliable remaining useful life (RUL) estimation of complex equipment. This paper proposes a novel temporal dynamics…

Machine Learning · Computer Science 2024-01-10 Anushiya Arunan , Yan Qin , Xiaoli Li , Chau Yuen

Image-based multi-object detection (MOD) and multi-object tracking (MOT) are advancing at a fast pace. A variety of 2D and 3D MOD and MOT methods have been developed for monocular and stereo cameras. Road safety analysis can benefit from…

Computer Vision and Pattern Recognition · Computer Science 2025-03-14 Qingwu Liu , Nicolas Saunier , Guillaume-Alexandre Bilodeau

We present \emph{Video-in-the-Loop} (ViTL), a two-stage long-video QA framework that preserves a fixed token budget by first \emph{localizing} question-relevant interval(s) with a low-fps skim and then \emph{answering} via span-aware…

Computer Vision and Pattern Recognition · Computer Science 2025-10-09 Chendong Wang , Donglin Bai , Yifan Yang , Xiao Jin , Anlan Zhang , Rui Wang , Shiqi Jiang , Yuqing Yang , Hao Wu , Qi Dai , Chong Luo , Ting Cao , Lili Qiu , Suman Banerjee

Active learning (AL) is for optimizing the selection of unlabeled data for annotation (labeling), aiming to enhance model performance while minimizing labeling effort. The key question in AL is which unlabeled data should be selected for…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Yingrui Ji , Vijaya Sindhoori Kaza , Nishanth Artham , Tianyang Wang

Long video understanding presents challenges due to the inherent high computational complexity and redundant temporal information. An effective representation for long videos must efficiently process such redundancy while preserving…

Computer Vision and Pattern Recognition · Computer Science 2025-04-18 Lan Wang , Yujia Chen , Du Tran , Vishnu Naresh Boddeti , Wen-Sheng Chu

Temporal action detection (TAD) is a fundamental video understanding task that aims to identify human actions and localize their temporal boundaries in videos. Although this field has achieved remarkable progress in recent years, further…

Active learning (AL) is a widely-used training strategy for maximizing predictive performance subject to a fixed annotation budget. In AL one iteratively selects training examples for annotation, often those for which the current model is…

Machine Learning · Computer Science 2019-11-05 David Lowell , Zachary C. Lipton , Byron C. Wallace

Active Learning (AL) has emerged as a powerful approach for minimizing labeling costs by selectively sampling the most informative data for neural network model development. Effective AL for large-scale vision-language models necessitates…

Computer Vision and Pattern Recognition · Computer Science 2025-07-30 Athmanarayanan Lakshmi Narayanan , Amrutha Machireddy , Ranganath Krishnan

Recent aerial object detection models rely on a large amount of labeled training data, which requires unaffordable manual labeling costs in large aerial scenes with dense objects. Active learning effectively reduces the data labeling cost…

Computer Vision and Pattern Recognition · Computer Science 2023-09-21 Dong Liang , Jing-Wei Zhang , Ying-Peng Tang , Sheng-Jun Huang

End-to-end multi-object tracking (MOT) methods have recently achieved remarkable progress by unifying detection and association within a single framework. Despite their strong detection performance, these methods suffer from relatively low…

Computer Vision and Pattern Recognition · Computer Science 2025-12-03 Yuqing Shao , Yuchen Yang , Rui Yu , Weilong Li , Xu Guo , Huaicheng Yan , Wei Wang , Xiao Sun

Robust multi-object tracking (MOT) is a prerequisite fora safe deployment of self-driving cars. Tracking objects, however, remains a highly challenging problem, especially in cluttered autonomous driving scenes in which objects tend to…

Computer Vision and Pattern Recognition · Computer Science 2020-08-20 Wei-Chih Hung , Henrik Kretzschmar , Tsung-Yi Lin , Yuning Chai , Ruichi Yu , Ming-Hsuan Yang , Dragomir Anguelov

Temporal action localization (TAL) is a prevailing task due to its great application potential. Existing works in this field mainly suffer from two weaknesses: (1) They often neglect the multi-label case and only focus on temporal modeling.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-16 Congqi Cao , Yizhe Wang , Yue Lu , Xin Zhang , Yanning Zhang

Semantic segmentation requires pixel-level annotation, which is time-consuming. Active Learning (AL) is a promising method for reducing data annotation costs. Due to the gap between aerial and natural images, the previous AL methods are not…

Computer Vision and Pattern Recognition · Computer Science 2024-05-29 Lianlei Shan , Weiqiang Wang , Ke Lv , Bin Luo

Multimodal learning combines information from multiple data modalities to improve predictive performance. However, modalities often contribute unequally and in a data dependent way, making it unclear which data modalities are genuinely…

Machine Learning · Statistics 2026-02-03 Mathew Chandy , Michael Johnson , Judong Shen , Devan V. Mehrotra , Hua Zhou , Jin Zhou , Xiaowu Dai

Active learning (AL) is designed to construct a high-quality labeled dataset by iteratively selecting the most informative samples. Such sampling heavily relies on data representation, while recently pre-training is popular for robust…

Machine Learning · Computer Science 2024-07-23 Beichen Zhang , Liang Li , Zheng-Jun Zha , Jiebo Luo , Qingming Huang

Continual learning (or class incremental learning) is a realistic learning scenario for computer vision systems, where deep neural networks are trained on episodic data, and the data from previous episodes are generally inaccessible to the…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Aditya R. Bhattacharya , Debanjan Goswami , Shayok Chakraborty

Understanding a person's behavior from their 3D motion is a fundamental problem in computer vision with many applications. An important component of this problem is 3D Temporal Action Localization (3D-TAL), which involves recognizing what…

Computer Vision and Pattern Recognition · Computer Science 2022-03-22 Jiankai Sun , Bolei Zhou , Michael J. Black , Arjun Chandrasekaran