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Inaccurate optical flow estimates in and near occluded regions, and out-of-boundary regions are two of the current significant limitations of optical flow estimation algorithms. Recent state-of-the-art optical flow estimation algorithms are…

Computer Vision and Pattern Recognition · Computer Science 2023-11-02 Fisseha Admasu Ferede , Madhusudhanan Balasubramanian

Obtained by moving object detection, the foreground mask result is unshaped and can not be directly used in most subsequent processes. In this paper, we focus on this problem and address it by constructing an optical flow based moving…

Computer Vision and Pattern Recognition · Computer Science 2018-11-20 Junjie Huang , Wei Zou , Zheng Zhu , Jiagang Zhu

The development of autonomous lightweight MAVs, capable of navigating in unknown indoor environments, is one of the major challenges in robotics. The complexity of this challenge comes from constraints on weight and power consumption of…

Robotics · Computer Science 2017-11-30 Sjoerd Tijmons , Guido de Croon , Bart Remes , Christophe De Wagter , Max Mulder

3D scene flow estimation is a vital tool in perceiving our environment given depth or range sensors. Unlike optical flow, the data is usually sparse and in most cases partially occluded in between two temporal samplings. Here we propose a…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Bojun Ouyang , Dan Raviv

Unmanned Aerial Vehicles (UAVs) are crucial in Search and Rescue (SAR) missions due to their ability to monitor vast maritime areas. However, small objects often remain difficult to detect from high altitudes due to low object-to-background…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Sakib Ahmed , Oscar Pizarro

With the rise of deep learning, there is a fundamental change in visual SLAM algorithms toward developing different modules trained as end-to-end pipelines. However, regardless of the implementation domain, visual SLAM's performance is…

Robotics · Computer Science 2025-03-06 Olaya Alvarez-Tunon , Yury Brodskiy , Erdal Kayacan

Nowadays, supervised deep learning techniques yield the best state-of-the-art prediction performances for a wide variety of computer vision tasks. However, such supervised techniques generally require a large amount of manually labeled…

Computer Vision and Pattern Recognition · Computer Science 2020-06-09 Florent Chiaroni , Mohamed-Cherif Rahal , Nicolas Hueber , Frederic Dufaux

This paper presents a three-dimensional, hydrodynamics-inspired collision avoidance framework for uncrewed aerial vehicle (UAV) formations operating in dynamic environments. When moving obstacles enter a UAV's sensing region, they are…

Robotics · Computer Science 2026-01-21 Suguru Sato , Kamesh Subbarao

This paper presents an self-supervised deep learning network for monocular visual inertial odometry (named DeepVIO). DeepVIO provides absolute trajectory estimation by directly merging 2D optical flow feature (OFF) and Inertial Measurement…

Robotics · Computer Science 2019-07-01 Liming Han , Yimin Lin , Guoguang Du , Shiguo Lian

Although visual navigation has been extensively studied using deep reinforcement learning, online learning for real-world robots remains a challenging task. Recent work directly learned from offline dataset to achieve broader generalization…

Robotics · Computer Science 2024-04-17 Chang Chen , Yuecheng Liu , Yuzheng Zhuang , Sitong Mao , Kaiwen Xue , Shunbo Zhou

Immersive novel view generation is an important technology in the field of graphics and has recently also received attention for operator-based human-robot interaction. However, the involved training is time-consuming, and thus the current…

Computer Vision and Pattern Recognition · Computer Science 2023-05-02 Yijun Yuan , Andreas Nuchter

Optical flow estimation is a challenging problem remaining unsolved. Recent deep learning based optical flow models have achieved considerable success. However, these models often train networks from the scratch on standard optical flow…

Computer Vision and Pattern Recognition · Computer Science 2023-03-16 Qiaole Dong , Chenjie Cao , Yanwei Fu

Learning to safely navigate in unknown environments is an important task for autonomous drones used in surveillance and rescue operations. In recent years, a number of learning-based Simultaneous Localisation and Mapping (SLAM) systems…

Robotics · Computer Science 2022-08-30 Ali Safa , Tim Verbelen , Ilja Ocket , André Bourdoux , Hichem Sahli , Francky Catthoor , Georges Gielen

Deep reinforcement learning has achieved great success in laser-based collision avoidance work because the laser can sense accurate depth information without too much redundant data, which can maintain the robustness of the algorithm when…

Robotics · Computer Science 2021-08-24 Lingping Gao , Jianchuan Ding , Wenxi Liu , Haiyin Piao , Yuxin Wang , Xin Yang , Baocai Yin

Most recent UAV (Unmanned Aerial Vehicle) detectors focus primarily on general challenge such as uneven distribution and occlusion. However, the neglect of scale challenges, which encompass scale variation and small objects, continues to…

Computer Vision and Pattern Recognition · Computer Science 2024-09-12 Xuexue Li

Collision avoidance is a crucial task in vision-guided autonomous navigation. Solutions based on deep reinforcement learning (DRL) has become increasingly popular. In this work, we proposed several novel agent state and reward function…

Robotics · Computer Science 2022-10-13 Sirui Song , Kirk Saunders , Ye Yue , Jundong Liu

We introduce a novel framework to track multiple objects in overhead camera videos for airport checkpoint security scenarios where targets correspond to passengers and their baggage items. We propose a self-supervised learning (SSL)…

Computer Vision and Pattern Recognition · Computer Science 2024-03-13 Abubakar Siddique , Henry Medeiros

In this article, we investigate self-supervised 3D scene flow estimation and class-agnostic motion prediction on point clouds. A realistic scene can be well modeled as a collection of rigidly moving parts, therefore its scene flow can be…

Computer Vision and Pattern Recognition · Computer Science 2023-10-18 Ruibo Li , Chi Zhang , Zhe Wang , Chunhua Shen , Guosheng Lin

Edges are the fundamental visual element for discovering tiny obstacles using a monocular camera. Nevertheless, tiny obstacles often have weak and inconsistent edge cues due to various properties such as small size and similar appearance to…

Robotics · Computer Science 2021-11-18 Feng Xue , Anlong Ming , Yu Zhou

Optical flow, or the estimation of motion fields from image sequences, is one of the fundamental problems in computer vision. Unlike most pixel-wise tasks that aim at achieving consistent representations of the same category, optical flow…

Computer Vision and Pattern Recognition · Computer Science 2023-09-29 Ao Luo , Fan Yang , Xin Li , Lang Nie , Chunyu Lin , Haoqiang Fan , Shuaicheng Liu