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Uncrewed aerial vehicles (UAVs) performing tasks such as transportation and aerial photography are vulnerable to intentional projectile attacks from humans. Dodging such a sudden and fast projectile poses a significant challenge for UAVs,…

Robotics · Computer Science 2025-12-01 Yuying Zhang , Na Fan , Haowen Zheng , Junning Liang , Zongliang Pan , Qifeng Chen , Ximin Lyu

Out-of-distribution (OOD) detection is the task of identifying inputs that deviate from the training data distribution. This capability is essential for safely deploying deep computer vision models in open-world environments. In this work,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Wenxi Chen , Raymond A. Yeh , Shaoshuai Mou , Yan Gu

In autonomous driving and robotics, there is a growing interest in utilizing short-term historical data to enhance multi-camera 3D object detection, leveraging the continuous and correlated nature of input video streams. Recent work has…

Computer Vision and Pattern Recognition · Computer Science 2024-04-03 Seokha Moon , Hongbeen Park , Jungphil Kwon , Jaekoo Lee , Jinkyu Kim

Phase wrapping is a major problem in direction-of-arrival (DOA) estimation using phase-difference observations. For a sensor pair with an inter-sensor spacing greater than half of the wavelength ($\lambda/2$) of the signal, phase wrapping…

Signal Processing · Electrical Eng. & Systems 2021-10-22 Hui Chen , Tarig Ballal , Tareq Y. Al-Naffouri

Unsupervised video object segmentation is a crucial application in video analysis without knowing any prior information about the objects. It becomes tremendously challenging when multiple objects occur and interact in a given video clip.…

Computer Vision and Pattern Recognition · Computer Science 2018-12-20 Ye Wang , Jongmoo Choi , Yueru Chen , Siyang Li , Qin Huang , Kaitai Zhang , Ming-Sui Lee , C. -C. Jay Kuo

This study proposes an encrypted PID control system with a disturbance observer (DOB) using a keyed-homomorphic encryption (KHE) scheme, aiming to achieve control performance while providing resistance to malleability-based attacks. The…

Systems and Control · Electrical Eng. & Systems 2025-07-31 Naoki Aizawa , Keita Emura , Kiminao Kogiso

Drone-captured images present significant challenges in object detection due to varying shooting conditions, which can alter object appearance and shape. Factors such as drone altitude, angle, and weather cause these variations, influencing…

Computer Vision and Pattern Recognition · Computer Science 2024-11-15 Chanyeong Park , Heegwang Kim , Joonki Paik

We present a framework for evaluating 6-DoF instance-level object pose estimators, focusing on those that require a single RGB (not RGB-D) image as input. Besides gaining intuition about how accurate these estimators are, we are interested…

Robotics · Computer Science 2025-12-03 Eric C. Joyce , Qianwen Zhao , Nathaniel Burgdorfer , Long Wang , Philippos Mordohai

It has been shown that most machine learning algorithms are susceptible to adversarial perturbations. Slightly perturbing an image in a carefully chosen direction in the image space may cause a trained neural network model to misclassify…

Computer Vision and Pattern Recognition · Computer Science 2017-07-13 Jiajun Lu , Hussein Sibai , Evan Fabry , David Forsyth

Deep learning-based direction-of-arrival (DoA) estimation has gained increasing popularity. A popular family of DoA estimation algorithms is beamforming methods, which operate by constructing a spatial filter that is applied to array…

Computational Engineering, Finance, and Science · Computer Science 2025-12-25 Xuyao Deng , Yong Dou , Kele Xu

Direction-of-arrival (DOA) estimation refers to the process of retrieving the direction information of several electromagnetic waves/sources from the outputs of a number of receiving antennas that form a sensor array. DOA estimation is a…

Information Theory · Computer Science 2017-01-10 Zai Yang , Jian Li , Petre Stoica , Lihua Xie

This paper proposes a disturbance-observer-based control (DOBC) scheme for frequency and voltage regulation for a renewable energy sources (RES) integrated power systems. The proposed approach acts a feed-forward control which improves the…

Systems and Control · Electrical Eng. & Systems 2022-06-03 Himanshu Grover , Ashu Verma , T. S. Bhatti

Contrary to the stunning feats observed in birds of prey, aerial manipulation and grasping with flying robots still lack versatility and agility. Conventional approaches using rigid manipulators require precise positioning and are subject…

Robotics · Computer Science 2023-08-15 Samuel Ubellacker , Aaron Ray , James Bern , Jared Strader , Luca Carlone

Model uncertainty presents significant challenges in vibration suppression of multi-inertia systems, as these systems often rely on inaccurate nominal mathematical models due to system identification errors or unmodeled dynamics. An…

Systems and Control · Electrical Eng. & Systems 2024-04-17 Fan Zhang , Jinfeng Chen , Yu Hu , Zhiqiang Gao , Ge Lv , Qin Lin

Both a good understanding of geometrical concepts and a broad familiarity with objects lead to our excellent perception of moving objects. The human ability to detect and segment moving objects works in the presence of multiple objects,…

Computer Vision and Pattern Recognition · Computer Science 2022-03-02 Pia Bideau , Erik Learned-Miller , Cordelia Schmid , Karteek Alahari

Unmanned underwater vehicles are increasingly employed for maintenance and surveying tasks at sea, but their operation in shallow waters is often hindered by hydrodynamic disturbances such as waves, currents, and turbulence. These unsteady…

Robotics · Computer Science 2026-02-10 Tobias Cook , Leo Micklem , Huazhi Dong , Yunjie Yang , Michael Mistry , Francesco Giorgio-Serchi

The use of delivery services is an increasing trend worldwide, further enhanced by the COVID pandemic. In this context, drone delivery systems are of great interest as they may allow for faster and cheaper deliveries. This paper presents a…

In practical scenarios, processes such as sensor design, manufacturing, and installation will introduce certain errors. Furthermore, mutual interference occurs when the sensors receive signals. These defects in array systems are referred to…

Signal Processing · Electrical Eng. & Systems 2026-01-12 Bo Zhou , Kaijie Xu , Yinghui Quan , Mengdao Xing

Autonomous drones can operate in remote and unstructured environments, enabling various real-world applications. However, the lack of effective vision-based algorithms has been a stumbling block to achieving this goal. Existing systems…

Robotics · Computer Science 2022-10-28 Jiawei Fu , Yunlong Song , Yan Wu , Fisher Yu , Davide Scaramuzza

The state-of-the-art deep neural networks (DNNs) are vulnerable against adversarial examples with additive random-like noise perturbations. While such examples are hardly found in the physical world, the image blurring effect caused by…

Computer Vision and Pattern Recognition · Computer Science 2020-11-10 Qing Guo , Felix Juefei-Xu , Xiaofei Xie , Lei Ma , Jian Wang , Bing Yu , Wei Feng , Yang Liu
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