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Object detection has greatly improved over the past decade thanks to advances in deep learning and large-scale datasets. However, detecting objects reflected in surfaces remains an underexplored area. Reflective surfaces are ubiquitous in…

Computer Vision and Pattern Recognition · Computer Science 2025-06-24 Yiquan Wu , Zhongtian Wang , You Wu , Ling Huang , Hui Zhou , Shuiwang Li

Infrared small target detection (ISTD) is highly sensitive to sensor type, observation conditions, and the intrinsic properties of the target. These factors can introduce substantial variations in the distribution of acquired infrared image…

Computer Vision and Pattern Recognition · Computer Science 2025-04-24 Yahao Lu , Yuehui Li , Xingyuan Guo , Shuai Yuan , Yukai Shi , Liang Lin

Small object detection (SOD) remains challenging due to extremely limited pixels and ambiguous object boundaries. These characteristics lead to challenging annotation, limited availability of large-scale high-quality datasets, and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-06 Haoran Zhu , Wen Yang , Guangyou Yang , Chang Xu , Ruixiang Zhang , Fang Xu , Haijian Zhang , Gui-Song Xia

In the realm of aerial imaging, the ability to detect small objects is pivotal for a myriad of applications, encompassing environmental surveillance, urban design, and crisis management. Leveraging RetinaNet, this work unveils DDR-Net: a…

Computer Vision and Pattern Recognition · Computer Science 2025-09-04 Zhicheng Tang , Jinwen Tang , Yi Shang

Recently, despite the remarkable advancements in object detection, modern detectors still struggle to detect tiny objects in aerial images. One key reason is that tiny objects carry limited features that are inevitably degraded or lost…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Jinfu Li , Yuqi Huang , Hong Song , Ting Wang , Jianghan Xia , Yucong Lin , Jingfan Fan , Jian Yang

Wasserstein Discriminant Analysis (WDA) is a new supervised method that can improve classification of high-dimensional data by computing a suitable linear map onto a lower dimensional subspace. Following the blueprint of classical Linear…

Machine Learning · Statistics 2018-09-21 Rémi Flamary , Marco Cuturi , Nicolas Courty , Alain Rakotomamonjy

Small object detection (SOD) in optical images and videos is a challenging problem that even state-of-the-art generic object detection methods fail to accurately localize and identify such objects. Typically, small objects appear in…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Aref Miri Rekavandi , Lian Xu , Farid Boussaid , Abd-Krim Seghouane , Stephen Hoefs , Mohammed Bennamoun

Infrared small target detection is an important fundamental task in the infrared system. Therefore, many infrared small target detection methods have been proposed, in which the low-rank model has been used as a powerful tool. However, most…

Computer Vision and Pattern Recognition · Computer Science 2021-11-29 Ting Liu , Jungang Yang , Boyang Li , Chao Xiao , Yang Sun , Yingqian Wang , Wei An

This survey paper specially analyzed computer vision-based object detection challenges and solutions by different techniques. We mainly highlighted object detection by three different trending strategies, i.e., 1) domain adaptive deep…

Computer Vision and Pattern Recognition · Computer Science 2021-07-19 Muhammed Muzammul , Xi Li

Arbitrary-oriented object detection (AOOD) has been widely applied to locate and classify objects with diverse orientations in remote sensing images. However, the inconsistent features for the localization and classification tasks in AOOD…

Computer Vision and Pattern Recognition · Computer Science 2024-03-28 Zhanchao Huang , Wei Li , Xiang-Gen Xia , Hao Wang , Ran Tao

Existing 3D object detectors encounter extreme challenges in localizing unseen 3D objects and recognizing them as unseen, which is a crucial technology in autonomous driving in the wild. To address these challenges, we propose practical…

Computer Vision and Pattern Recognition · Computer Science 2025-05-28 Hyunjun Choi , Daeho Um , Hawook Jeong

A novel topological-data-analytical (TDA) method is proposed to distinguish, from noise, small holes surrounded by high-density regions of a probability density function. The proposed method is robust against additive noise and outliers.…

Statistics Theory · Mathematics 2024-04-02 Chunyin Siu , Gennady Samorodnitsky , Christina Lee Yu , Andrey Yao

Detecting objects with visual sensors is crucial for numerous mobile robotics applications, from autonomous navigation to inspection. However, robots often need to operate under significant domains shifts from those they were trained in,…

Small oriented objects that represent tiny pixel-area in large-scale aerial images are difficult to detect due to their size and orientation. Existing oriented aerial detectors have shown promising results but are mainly focused on…

Computer Vision and Pattern Recognition · Computer Science 2024-01-15 Chandler Timm C. Doloriel , Rhandley D. Cajote

In the past decade, object detection has achieved significant progress in natural images but not in aerial images, due to the massive variations in the scale and orientation of objects caused by the bird's-eye view of aerial images. More…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Jian Ding , Nan Xue , Gui-Song Xia , Xiang Bai , Wen Yang , Micheal Ying Yang , Serge Belongie , Jiebo Luo , Mihai Datcu , Marcello Pelillo , Liangpei Zhang

Semi-Supervised Object Detection (SSOD), aiming to explore unlabeled data for boosting object detectors, has become an active task in recent years. However, existing SSOD approaches mainly focus on horizontal objects, leaving multi-oriented…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Wei Hua , Dingkang Liang , Jingyu Li , Xiaolong Liu , Zhikang Zou , Xiaoqing Ye , Xiang Bai

Tiny objects, with their limited spatial resolution, often resemble point-like distributions. As a result, bounding box prediction using point-level supervision emerges as a natural and cost-effective alternative to traditional box-level…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Haoran Zhu , Chang Xu , Ruixiang Zhang , Fang Xu , Wen Yang , Haijian Zhang , Gui-Song Xia

Current anchor-free object detectors are quite simple and effective yet lack accurate label assignment methods, which limits their potential in competing with classic anchor-based models that are supported by well-designed assignment…

Computer Vision and Pattern Recognition · Computer Science 2021-04-30 Jiachen Li , Bowen Cheng , Rogerio Feris , Jinjun Xiong , Thomas S. Huang , Wen-Mei Hwu , Humphrey Shi

Conventional training of deep neural networks requires a large number of the annotated image which is a laborious and time-consuming task, particularly for rare objects. Few-shot object detection (FSOD) methods offer a remedy by realizing…

Computer Vision and Pattern Recognition · Computer Science 2023-03-21 Zeyu Shangguan , Mohammad Rostami

Tiny Object Detection is challenging due to small size, low resolution, occlusion, background clutter, lighting conditions and small object-to-image ratio. Further, object detection methodologies often make underlying assumption that both…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Javaria Farooq , Nayyer Aafaq , M Khizer Ali Khan , Ammar Saleem , M Ibraheem Siddiqui