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Detecting vehicles in aerial images is difficult due to complex backgrounds, small object sizes, shadows, and occlusions. Although recent deep learning advancements have improved object detection, these models remain susceptible to…

Computer Vision and Pattern Recognition · Computer Science 2025-09-10 Mikael Yeghiazaryan , Sai Abhishek Siddhartha Namburu , Emily Kim , Stanislav Panev , Celso de Melo , Fernando De la Torre , Jessica K. Hodgins

Efficient and reliable methods for training of object detectors are in higher demand than ever, and more and more data relevant to the field is becoming available. However, large datasets like Open Images Dataset v4 (OID) are sparsely…

Computer Vision and Pattern Recognition · Computer Science 2019-04-23 Yusuke Niitani , Takuya Akiba , Tommi Kerola , Toru Ogawa , Shotaro Sano , Shuji Suzuki

Object detection in Unmanned Aerial Vehicle (UAV) images poses significant challenges due to complex scale variations and class imbalance among objects. Existing methods often address these challenges separately, overlooking the intricate…

Computer Vision and Pattern Recognition · Computer Science 2025-04-29 Zhenteng Li , Sheng Lian , Dengfeng Pan , Youlin Wang , Wei Liu

Automotive radar has increasingly attracted attention due to growing interest in autonomous driving technologies. Acquiring situational awareness using multimodal data collected at high sampling rates by various sensing devices including…

Computer Vision and Pattern Recognition · Computer Science 2023-02-22 Madhumitha Sakthi , Ahmed Tewfik , Marius Arvinte , Haris Vikalo

3D object detection with LiDAR point clouds plays an important role in autonomous driving perception module that requires high speed, stability and accuracy. However, the existing point-based methods are challenging to reach the speed…

Computer Vision and Pattern Recognition · Computer Science 2021-10-13 Jiahui Fu , Guanghui Ren , Yunpeng Chen , Si Liu

Mitigating biases in computer vision models is an essential step towards the trustworthiness of artificial intelligence models. Existing bias mitigation methods focus on a small set of predefined biases, limiting their applicability in…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Ioannis Sarridis , Christos Koutlis , Symeon Papadopoulos , Christos Diou

In recent years, unmanned aerial vehicles (UAVs) are used for numerous inspection and video capture tasks. Manually controlling UAVs in the vicinity of obstacles is challenging, however, and poses a high risk of collisions. Even for…

Robotics · Computer Science 2022-08-12 Daniel Schleich , Sven Behnke

Automatic multi-class object detection in remote sensing images in unconstrained scenarios is of high interest for several applications including traffic monitoring and disaster management. The huge variation in object scale, orientation,…

Computer Vision and Pattern Recognition · Computer Science 2018-11-02 Seyed Majid Azimi , Eleonora Vig , Reza Bahmanyar , Marco Körner , Peter Reinartz

Aerial wildlife tracking is critical for conservation efforts and relies on detecting small objects on the ground below the aircraft. It presents technical challenges: crewed aircraft are expensive, risky and disruptive; autonomous drones…

Computer Vision and Pattern Recognition · Computer Science 2025-07-30 Christopher Indris , Raiyan Rahman , Goetz Bramesfeld , Guanghui Wang

The study of terrain and landform classification through UAV remote sensing diverges significantly from ground vehicle patrol tasks. Besides grappling with the complexity of data annotation and ensuring temporal consistency, it also…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Chi-Han Chen , Chieh-Ming Chen , Wen-Huang Cheng , Ching-Chun Huang

Object detection in remote sensing imagery plays a vital role in various Earth observation applications. However, unlike object detection in natural scene images, this task is particularly challenging due to the abundance of small, often…

Computer Vision and Pattern Recognition · Computer Science 2024-09-16 Minh-Duc Vu , Zuheng Ming , Fangchen Feng , Bissmella Bahaduri , Anissa Mokraoui

A growing number of commercial satellite companies provide easily accessible satellite imagery. Overhead imagery is used by numerous industries including agriculture, forestry, natural disaster analysis, and meteorology. Satellite images,…

Image and Video Processing · Electrical Eng. & Systems 2021-05-14 János Horváth , Sriram Baireddy , Hanxiang Hao , Daniel Mas Montserrat , Edward J. Delp

In recent times, there has been a notable surge in multimodal approaches that decorates raw LiDAR point clouds with camera-derived features to improve object detection performance. However, we found that these methods still grapple with the…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Sudip Dhakal , Dominic Carrillo , Deyuan Qu , Michael Nutt , Qing Yang , Song Fu

The unsupervised 3D object detection is to accurately detect objects in unstructured environments with no explicit supervisory signals. This task, given sparse LiDAR point clouds, often results in compromised performance for detecting…

Computer Vision and Pattern Recognition · Computer Science 2024-07-12 Ruiyang Zhang , Hu Zhang , Hang Yu , Zhedong Zheng

In recent years, there has been a dramatic increase in both practical and research applications of unmanned aerial vehicles (UAVs). According to the literature, there is a need in this area to develop a more refined model of UAV system…

Software Engineering · Computer Science 2020-06-02 Sabah Al-Fedaghi , Jassim Al-Fadhli

The condition assessment of road surfaces is essential to ensure their serviceability while still providing maximum road traffic safety. This paper presents a robust stereo vision system embedded in an unmanned aerial vehicle (UAV). The…

Computer Vision and Pattern Recognition · Computer Science 2019-04-15 Rui Fan , Jianhao Jiao , Jie Pan , Huaiyang Huang , Shaojie Shen , Ming Liu

In LiDAR-based 3D object detection for autonomous driving, the ratio of the object size to input scene size is significantly smaller compared to 2D detection cases. Overlooking this difference, many 3D detectors directly follow the common…

Computer Vision and Pattern Recognition · Computer Science 2021-12-14 Lue Fan , Ziqi Pang , Tianyuan Zhang , Yu-Xiong Wang , Hang Zhao , Feng Wang , Naiyan Wang , Zhaoxiang Zhang

This paper presents a visual tracking system that is capable or running real time on-board a small UAV (Unmanned Aerial Vehicle). The tracking system is computationally efficient and invariant to lighting changes and rotation of the object…

Robotics · Computer Science 2012-05-28 Ashraf Qadir , William Semke , Jeremiah Neubert

3D object detection in point clouds is a core component for modern robotics and autonomous driving systems. A key challenge in 3D object detection comes from the inherent sparse nature of point occupancy within the 3D scene. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2022-10-17 Pei Sun , Mingxing Tan , Weiyue Wang , Chenxi Liu , Fei Xia , Zhaoqi Leng , Dragomir Anguelov

Bird-eye-view (BEV) based methods have made great progress recently in multi-view 3D detection task. Comparing with BEV based methods, sparse based methods lag behind in performance, but still have lots of non-negligible merits. To push…

Computer Vision and Pattern Recognition · Computer Science 2023-02-13 Xuewu Lin , Tianwei Lin , Zixiang Pei , Lichao Huang , Zhizhong Su