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This paper presents a novel setup for automatic visual inspection of cracks in ceramic tile as well as studies the effect of various classifiers and height-varying illumination conditions for this task. The intuition behind this setup is…

Computer Vision and Pattern Recognition · Computer Science 2020-10-20 Milind G. Padalkar , Carlos Beltrán-González , Matteo Bustreo , Alessio Del Bue , Vittorio Murino

In practical applications, effectively segmenting cracks in large-scale computed tomography (CT) images holds significant importance for understanding the structural integrity of materials. Classical image-processing techniques and modern…

Computer Vision and Pattern Recognition · Computer Science 2025-11-24 Vitalii Makogin , Duc Nguyen , Evgeny Spodarev

Automated pavement crack detection and measurement are important road issues. Agencies have to guarantee the improvement of road safety. Conventional crack detection and measurement algorithms can be extremely time-consuming and low…

Computer Vision and Pattern Recognition · Computer Science 2020-02-11 Zhun Fan , Chong Li , Ying Chen , Paola Di Mascio , Xiaopeng Chen , Guijie Zhu , Giuseppe Loprencipe

An object detection pipeline comprises a camera that captures the scene and an object detector that processes these images. The quality of the images directly affects the performance of the object detector. Many works nowadays focus either…

Robotics · Computer Science 2022-07-20 Leon Amadeus Varga , Sebastian Koch , Andreas Zell

This paper addresses the problem of multi-object tracking in Unmanned Aerial Vehicle (UAV) footage. It plays a critical role in various UAV applications, including traffic monitoring systems and real-time suspect tracking by the police.…

Computer Vision and Pattern Recognition · Computer Science 2024-10-29 InPyo Song , Jangwon Lee

Most consumer-level low-cost unmanned aerial vehicles (UAVs) have limited battery power and long charging time. Due to these energy constraints, they cannot accomplish many practical tasks, such as monitoring a sport or political event for…

Robotics · Computer Science 2021-01-27 Jyh-Ming Lien , Sam Rodriguez , Marco Morales

Integration of reinforcement learning with unmanned aerial vehicles (UAVs) to achieve autonomous flight has been an active research area in recent years. An important part focuses on obstacle detection and avoidance for UAVs navigating…

Artificial Intelligence · Computer Science 2021-03-12 Jeremy Roghair , Kyungtae Ko , Amir Ehsan Niaraki Asli , Ali Jannesari

Commercial operation of unmanned aerial vehicles (UAVs) would benefit from an onboard ability to sense and avoid (SAA) potential mid-air collision threats. In this paper we present a new approach for detection of aircraft below the horizon.…

Robotics · Computer Science 2019-03-11 Jasmin James , Jason J. Ford , Timothy L. Molloy

Routine visual inspections of concrete structures are imperative for upholding the safety and integrity of critical infrastructure. Such visual inspections sometimes happen under low-light conditions, e.g., checking for bridge health. Crack…

Computer Vision and Pattern Recognition · Computer Science 2024-11-01 Zhen Yao , Jiawei Xu , Shuhang Hou , Mooi Choo Chuah

Surface cracks on buildings, natural walls and underground mine tunnels can indicate serious structural integrity issues that threaten the safety of the structure and people in the environment. Timely detection and monitoring of cracks are…

Computer Vision and Pattern Recognition · Computer Science 2021-11-24 Faris Azhari , Charlotte Sennersten , Michael Milford , Thierry Peynot

This paper investigates the problem of traffic surveillance using an unmanned aerial vehicle (UAV) and proposes a domain-knowledge-aided airborne ground moving targets tracking algorithm. To improve the accuracy of multiple targets…

Signal Processing · Electrical Eng. & Systems 2023-03-14 Jianduo Chai , Shaoming He , Hyo-Sang Shin

Tunnel construction using the drill-and-blast method requires the 3D measurement of the excavation front to evaluate underbreak locations. Considering the inspection and measurement task's safety, cost, and efficiency, deploying lightweight…

Robotics · Computer Science 2024-01-17 Zhefan Xu , Baihan Chen , Xiaoyang Zhan , Yumeng Xiu , Christopher Suzuki , Kenji Shimada

Unmanned aerial vehicles (UAVs) are widely used for object detection. However, the existing UAV-based object detection systems are subject to the serious challenge, namely, the finite computation, energy and communication resources, which…

Signal Processing · Electrical Eng. & Systems 2024-02-23 Xi Song , Lu Yuan , Zhibo Qu , Fuhui Zhou , Qihui Wu , Tony Q. S. Quek , Rose Qingyang Hu

In this paper, we propose a fast method for crack detection in 3D computed tomography (CT) images. Our approach combines the Maximal Hessian Entry filter and a Deep-First Search algorithm-based technique to strike a balance between…

Image and Video Processing · Electrical Eng. & Systems 2024-11-12 Duc Nguyen , Vsevolod Chernyshev , Vitalii Makogin , Evgeny Spodarev

This paper proposes an unmanned aerial vehicle (UAV)-based distributed sensing framework that uses orthogonal frequency-division multiplexing (OFDM) waveforms to detect the position of a ground target, and UAVs operate in half-duplex mode.…

Signal Processing · Electrical Eng. & Systems 2023-09-12 Xavier Alejandro Flores Cabezas , Diana Pamela Moya Osorio , Markku Juntti

Detecting and segmenting cracks in infrastructure, such as roads and buildings, is crucial for safety and cost-effective maintenance. In spite of the potential of deep learning, there are challenges in achieving precise results and handling…

Computer Vision and Pattern Recognition · Computer Science 2025-01-13 June Moh Goo , Xenios Milidonis , Alessandro Artusi , Jan Boehm , Carlo Ciliberto

Unmanned Aerial Vehicles (UAVs) are indispensable for infrastructure inspection, surveillance, and related tasks, yet they also introduce critical security challenges. This survey provides a wide-ranging examination of the anti-UAV domain,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Yifei Dong , Fengyi Wu , Sanjian Zhang , Guangyu Chen , Yuzhi Hu , Masumi Yano , Jingdong Sun , Siyu Huang , Feng Liu , Qi Dai , Zhi-Qi Cheng

The use of unmanned aerial vehicles (UAVs) for different applications has increased many folds in recent years. The UAVs are expected to change the future air operations. However, there are instances where the UAVs can be used for malicious…

Signal Processing · Electrical Eng. & Systems 2022-11-21 Wahab Khawaja , Martins Ezuma , Vasilii Semkin , Fatih Erden , Ozgur Ozdemir , Ismail Guvenc

Raindrops adhering to the lens of UAVs can obstruct visibility of the background scene and degrade image quality. Despite recent progress in image deraining methods and datasets, there is a lack of focus on raindrop removal from UAV aerial…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Wenhui Chang , Hongming Chen , Xin He , Xiang Chen , Liangduo Shen

Deploying unmanned aerial vehicle (UAV) networks to provide coverage for outdoor users has attracted great attention during the last decade. However, outdoor coverage is challenging due to the high mobility of crowds and the diverse terrain…

Networking and Internet Architecture · Computer Science 2023-12-07 Zhengying Lou , Ruibo Wang , Baha Eddine Youcef Belmekki , Mustafa A. Kishk , Mohamed-Slim Alouini
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