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This paper addresses the problem of guiding a quadrotor through a predefined sequence of waypoints in cluttered environments, aiming to minimize the flight time while avoiding collisions. Previous approaches either suffer from prolonged…

Robotics · Computer Science 2024-07-01 Wei Xiao , Zhaohan Feng , Ziyu Zhou , Jian Sun , Gang Wang , Jie Chen

This letter presents a novel coarse-to-fine motion planning framework for robotic manipulation in cluttered, unmodeled environments. The system integrates a dual-camera perception setup with a B-spline-based model predictive control (MPC)…

Robotics · Computer Science 2025-07-16 Chen Cai , Ernesto Dickel Saraiva , Ya-jun Pan , Steven Liu

Collaborative navigation becomes essential in situations of occluded scenarios in autonomous driving where independent driving policies are likely to lead to collisions. One promising approach to address this issue is through the use of…

Robotics · Computer Science 2024-12-12 Leandro Parada , Hanlin Tian , Jose Escribano , Panagiotis Angeloudis

Multiple object tracking (MOT) tends to become more challenging when severe occlusions occur. In this paper, we analyze the limitations of traditional Convolutional Neural Network-based methods and Transformer-based methods in handling…

Computer Vision and Pattern Recognition · Computer Science 2023-09-12 Teng Fu , Xiaocong Wang , Haiyang Yu , Ke Niu , Bin Li , Xiangyang Xue

Multi-Object Tracking (MOT) has gained extensive attention in recent years due to its potential applications in traffic and pedestrian detection. We note that tracking by detection may suffer from errors generated by noise detectors, such…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 ZongTan Li

We present a novel learning-based collision avoidance algorithm, CrowdSteer, for mobile robots operating in dense and crowded environments. Our approach is end-to-end and uses multiple perception sensors such as a 2-D lidar along with a…

Robotics · Computer Science 2020-04-30 Jing Liang , Utsav Patel , Adarsh Jagan Sathyamoorthy , Dinesh Manocha

Robots need to predict and react to human motions to navigate through a crowd without collisions. Many existing methods decouple prediction from planning, which does not account for the interaction between robot and human motions and can…

Robotics · Computer Science 2025-03-12 Sepehr Samavi , James R. Han , Florian Shkurti , Angela P. Schoellig

Air-ground robots (AGRs) are widely used in surveillance and disaster response due to their exceptional mobility and versatility (i.e., flying and driving). Current AGR navigation systems perform well in static occlusion-prone environments…

Robotics · Computer Science 2024-12-06 Junming Wang , Xiuxian Guan , Zekai Sun , Tianxiang Shen , Dong Huang , Fangming Liu , Heming Cui

There are few industries which use manually controlled robots for carrying material and this cannot be used all the time in all the places. So, it is very tranquil to have robots which can follow a specific human by following the unique…

Robotics · Computer Science 2021-09-08 Sai Nikhil Gona , Prithvi Raj Bandhakavi

In this paper, we address a key limitation of existing 2D face recognition methods: robustness to occlusions. To accomplish this task, we systematically analyzed the impact of facial attributes on the performance of a state-of-the-art face…

Computer Vision and Pattern Recognition · Computer Science 2020-06-15 Xiang Xu , Nikolaos Sarafianos , Ioannis A. Kakadiaris

Pedestrian detection in crowded scenes is a challenging problem, because occlusion happens frequently among different pedestrians. In this paper, we propose an effective and efficient detection network to hunt pedestrians in crowd scenes.…

Computer Vision and Pattern Recognition · Computer Science 2019-09-17 Cheng Chi , Shifeng Zhang , Junliang Xing , Zhen Lei , Stan Z. Li , Xudong Zou

Collision avoidance in unknown obstacle-cluttered environments may not always be feasible. This paper focuses on an emerging paradigm shift in which potential collisions with the environment can be harnessed instead of being avoided…

Robotics · Computer Science 2020-09-07 Zhouyu Lu , Zhichao Liu , Gustavo J. Correa , Konstantinos Karydis

Mistakes/uncertainties in object detection could lead to catastrophes when deploying robots in the real world. In this paper, we measure the uncertainties of object localization to minimize this kind of risk. Uncertainties emerge upon…

Computer Vision and Pattern Recognition · Computer Science 2020-07-03 Yihui He , Jianren Wang

Autonomous navigation is reshaping various domains in people's life by enabling efficient and safe movement in complex environments. Reliable navigation requires algorithmic approaches that compute optimal or near-optimal trajectories while…

Robotics · Computer Science 2025-03-05 Yifei Wang , Jacky Keung , Haohan Xu , Yuchen Cao , Zhenyu Mao

Occlusion removal is an interesting application of image enhancement, for which, existing work suggests manually-annotated or domain-specific occlusion removal. No work tries to address automatic occlusion detection and removal as a…

Computer Vision and Pattern Recognition · Computer Science 2019-05-08 Kumara Kahatapitiya , Dumindu Tissera , Ranga Rodrigo

This paper presents a system for improving the robustness of LiDAR lateral localisation systems. This is made possible by including detections of road boundaries which are invisible to the sensor (due to occlusion, e.g. traffic) but can be…

Robotics · Computer Science 2020-03-11 Tarlan Suleymanov , Matthew Gadd , Lars Kunze , Paul Newman

Safe autonomous driving requires robust detection of other traffic participants. However, robust does not mean perfect, and safe systems typically minimize missed detections at the expense of a higher false positive rate. This results in…

Computer Vision and Pattern Recognition · Computer Science 2020-09-01 Andreas Bühler , Adrien Gaidon , Andrei Cramariuc , Rares Ambrus , Guy Rosman , Wolfram Burgard

Multiple object tracking has been a challenging field, mainly due to noisy detection sets and identity switch caused by occlusion and similar appearance among nearby targets. Previous works rely on appearance models built on individual or…

Computer Vision and Pattern Recognition · Computer Science 2019-03-08 Zheng Tang , Jenq-Neng Hwang

Adversarial training has achieved substantial performance in defending image retrieval against adversarial examples. However, existing studies in deep metric learning (DML) still suffer from two major limitations: weak adversary and model…

Computer Vision and Pattern Recognition · Computer Science 2025-08-14 Qiwei Tian , Chenhao Lin , Zhengyu Zhao , Qian Li , Chao Shen

As radar sensors are being miniaturized, there is a growing interest for using them in indoor sensing applications such as indoor drone obstacle avoidance. In those novel scenarios, radars must perform well in dense scenes with a large…