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Object detection in Unmanned Aerial Vehicle (UAV) imagery is fundamentally challenged by a prevalence of small, densely packed, and occluded objects within cluttered backgrounds. Conventional detectors struggle with this domain, as they…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Hongxing Peng , Lide Chen , Hui Zhu , Yan Chen

Unmanned aerial vehicle object detection (UAV-OD) has been widely used in various scenarios. However, most existing UAV-OD algorithms rely on manually designed components, which require extensive tuning. End-to-end models that do not depend…

Computer Vision and Pattern Recognition · Computer Science 2025-07-02 Huaxiang Zhang , Kai Liu , Zhongxue Gan , Guo-Niu Zhu

In this paper, we provide the observation that too few queries assigned as positive samples in DETR with one-to-one set matching leads to sparse supervision on the encoder's output which considerably hurt the discriminative feature learning…

Computer Vision and Pattern Recognition · Computer Science 2023-08-17 Zhuofan Zong , Guanglu Song , Yu Liu

Transformer-based multi-object tracking (MOT) methods have captured the attention of many researchers in recent years. However, these models often suffer from slow inference speeds due to their structure or other issues. To address this…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Pan Liao , Feng Yang , Di Wu , Jinwen Yu , Wenhui Zhao , Dingwen Zhang

Recent proposed DETR variants have made tremendous progress in various scenarios due to their streamlined processes and remarkable performance. However, the learned queries usually explore the global context to generate the final set…

Computer Vision and Pattern Recognition · Computer Science 2023-03-01 Tian Qiu , Linyun Zhou , Wenxiang Xu , Lechao Cheng , Zunlei Feng , Mingli Song

Recently, DETR pioneered the solution of vision tasks with transformers, it directly translates the image feature map into the object detection result. Though effective, translating the full feature map can be costly due to redundant…

Computer Vision and Pattern Recognition · Computer Science 2022-03-03 Tao Wang , Li Yuan , Yunpeng Chen , Jiashi Feng , Shuicheng Yan

Scene understanding is paramount in robotics, self-navigation, augmented reality, and many other fields. To fully accomplish this task, an autonomous agent has to infer the 3D structure of the sensed scene (to know where it looks at) and…

Computer Vision and Pattern Recognition · Computer Science 2020-02-26 Pier Luigi Dovesi , Matteo Poggi , Lorenzo Andraghetti , Miquel Martí , Hedvig Kjellström , Alessandro Pieropan , Stefano Mattoccia

Convolutional Neural Networks (CNN) have dominated the field of detection ever since the success of AlexNet in ImageNet classification [12]. With the sweeping reform of Transformers [27] in natural language processing, Carion et al. [2]…

Computer Vision and Pattern Recognition · Computer Science 2022-06-08 Chi Zhang , Lijuan Liu , Xiaoxue Zang , Frederick Liu , Hao Zhang , Xinying Song , Jindong Chen

Dense retrieval has shown promise in the first-stage retrieval process when trained on in-domain labeled datasets. However, previous studies have found that dense retrieval is hard to generalize to unseen domains due to its weak modeling of…

Information Retrieval · Computer Science 2023-05-19 Shicheng Xu , Liang Pang , Huawei Shen , Xueqi Cheng

Underwater object detection using sonar imagery has become a critical and rapidly evolving research domain within marine technology. However, sonar images are characterized by lower resolution and sparser features compared to optical…

Computer Vision and Pattern Recognition · Computer Science 2025-05-13 XiaoTong Gu , Shengyu Tang , Yiming Cao , Changdong Yu

Recent advance in Dense Retrieval (DR) techniques has significantly improved the effectiveness of first-stage retrieval. Trained with large-scale supervised data, DR models can encode queries and documents into a low-dimensional dense space…

Information Retrieval · Computer Science 2022-08-18 Jingtao Zhan , Qingyao Ai , Yiqun Liu , Jiaxin Mao , Xiaohui Xie , Min Zhang , Shaoping Ma

Multimodal transformer exhibits high capacity and flexibility to align image and text for visual grounding. However, the existing encoder-only grounding framework (e.g., TransVG) suffers from heavy computation due to the self-attention…

Computer Vision and Pattern Recognition · Computer Science 2023-10-27 Fengyuan Shi , Ruopeng Gao , Weilin Huang , Limin Wang

Sound event detection (SED) has gained increasing attention with its wide application in surveillance, video indexing, etc. Existing models in SED mainly generate frame-level prediction, converting it into a sequence multi-label…

Sound · Computer Science 2021-11-15 Zhirong Ye , Xiangdong Wang , Hong Liu , Yueliang Qian , Rui Tao , Long Yan , Kazushige Ouchi

An in-depth exploration of object detection and semantic segmentation is provided, combining theoretical foundations with practical applications. State-of-the-art advancements in machine learning and deep learning are reviewed, focusing on…

Detection Transformers (DETR) have recently set new benchmarks in object detection. However, their performance in detecting rotated objects lags behind established oriented object detectors. Our analysis identifies a key observation: the…

Computer Vision and Pattern Recognition · Computer Science 2026-05-06 Hakjin Lee , MinKi Song , Jamyoung Koo , Junghoon Seo

Transformers have revolutionized the object detection landscape by introducing DETRs, acclaimed for their simplicity and efficacy. Despite their advantages, the substantial size of these models poses significant challenges for practical…

Computer Vision and Pattern Recognition · Computer Science 2024-09-11 Yi Liu , Luting Wang , Zongheng Tang , Yue Liao , Yifan Sun , Lijun Zhang , Si Liu

Initially introduced as a machine translation model, the Transformer architecture has now become the foundation for modern deep learning architecture, with applications in a wide range of fields, from computer vision to natural language…

Computation and Language · Computer Science 2024-06-21 Martin Courtois , Malte Ostendorff , Leonhard Hennig , Georg Rehm

The integration of Artificial Intelligence into the modern educational system is rapidly evolving, particularly in monitoring student behavior in classrooms, a task traditionally dependent on manual observation. This conventional method is…

Computer Vision and Pattern Recognition · Computer Science 2024-10-11 Zhifeng Wang , Minghui Wang , Chunyan Zeng , Longlong Li

The paradigm of large-scale pre-training followed by downstream fine-tuning has been widely employed in various object detection algorithms. In this paper, we reveal discrepancies in data, model, and task between the pre-training and…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Ming Li , Jie Wu , Xionghui Wang , Chen Chen , Jie Qin , Xuefeng Xiao , Rui Wang , Min Zheng , Xin Pan

Open-Ended object Detection (OED) is a novel and challenging task that detects objects and generates their category names in a free-form manner, without requiring additional vocabularies during inference. However, the existing OED models,…

Computer Vision and Pattern Recognition · Computer Science 2025-05-28 Guiping Cao , Tao Wang , Wenjian Huang , Xiangyuan Lan , Jianguo Zhang , Dongmei Jiang