61   Artículos

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en línea
Jianan Bai, Danyang Qin, Ping Zheng and Lin Ma    
In visual indoor positioning systems, the method of constructing a visual map by point-by-point sampling is widely used due to its characteristics of clear static images and simple coordinate calculation. However, too small a sampling interval will cause... ver más
Revista: ISPRS International Journal of Geo-Information    Formato: Electrónico

 
en línea
Longyu Zhang, Hao Xia, Qingjun Liu, Chunyang Wei, Dong Fu and Yanyou Qiao    
Positioning information has become one of the most important information for processing and displaying on smart mobile devices. In this paper, we propose a visual positioning method using RGB-D image on smart mobile devices. Firstly, the pose of each ima... ver más
Revista: ISPRS International Journal of Geo-Information    Formato: Electrónico

 
en línea
Zun Niu, Fugui Guo, Qiangqiang Shuai, Guangchen Li and Bocheng Zhu    
The real-time kinematic positioning technique (RTK) and visual?inertial odometry (VIO) are both promising positioning technologies. However, RTK degrades in GNSS-hostile areas, where global navigation satellite system (GNSS) signals are reflected and blo... ver más
Revista: ISPRS International Journal of Geo-Information    Formato: Electrónico

 
en línea
Jun Dai, Chunfeng Zhang, Songlin Liu, Xiangyang Hao, Zongbin Ren and Yunzhu Lv    
Autonomous navigation and localization are the foundations of unmanned intelligent systems, therefore, continuous, stable, and reliable position services in unknown environments are especially important for autonomous navigation and localization. Aiming ... ver más
Revista: Applied Sciences    Formato: Electrónico

 
en línea
Huapeng Tang, Danyang Qin, Jiaqiang Yang, Haoze Bie, Mengying Yan, Gengxin Zhang and Lin Ma    
Frame buildings as important nodes of urban space. The include high-speed railway stations, airports, residences, and office buildings, which carry various activities and functions. Due to illumination irrationality and mutual occlusion between complex o... ver más
Revista: ISPRS International Journal of Geo-Information    Formato: Electrónico

 
en línea
Ping Zheng, Danyang Qin, Bing Han, Lin Ma and Teklu Merhawit Berhane    
In the process of indoor visual positioning and navigation, difficult points often exist in corridors, stairwells, and other scenes that contain large areas of white walls, strong consistent background, and sparse feature points. Aiming at the problem of... ver más
Revista: ISPRS International Journal of Geo-Information    Formato: Electrónico

 
en línea
Anand George, Niko Koivumäki, Teemu Hakala, Juha Suomalainen and Eija Honkavaara    
Positioning of unoccupied aerial systems (UAS, drones) is predominantly based on Global Navigation Satellite Systems (GNSS). Due to potential signal disruptions, redundant positioning systems are needed for reliable operation. The objective of this study... ver más
Revista: Drones    Formato: Electrónico

 
en línea
Haojun Luo and Chih-Yung Wen    
Unmanned Ground Vehicles (UGVs) and Unmanned Aerial Vehicles (UAVs) are commonly used for various purposes, and their cooperative systems have been developed to enhance their capabilities. However, tracking and interacting with dynamic UAVs poses several... ver más
Revista: Aerospace    Formato: Electrónico

 
en línea
Yilin Liu, Ruochen Liu, Ruihang Yu, Zhiming Xiong, Yan Guo, Shaokun Cai and Pengfei Jiang    
To reduce costs, an unmanned swarm usually consists of nodes with high-accuracy navigation sensors (HAN) and nodes with low-accuracy navigation sensors (LAN). Transmitting and fusing the navigation information obtained by HANs enables LANs to improve the... ver más
Revista: Drones    Formato: Electrónico

 
en línea
Haoyu Lin, Pengkun Quan, Zhuo Liang, Dongbo Wei and Shichun Di    
With the rise of electric vehicles, autonomous driving, and valet parking technologies, considerable research has been dedicated to automatic charging solutions. While the current focus lies on charging robot design and the visual positioning of charging... ver más
Revista: Applied Sciences    Formato: Electrónico

 
en línea
Zhonglin Lin, Weixiong Wang, Yufeng Li, Xinglong Zhang, Tianhong Zhang, Haitao Wang, Xianyu Wu and Feng Huang    
In the process of unmanned aerial vehicle (UAV) visual-navigation-algorithm design and accuracy verification, the question of how to develop a high-precision and high-reliability semi-physical simulation platform has become a significant engineering prob... ver más
Revista: Aerospace    Formato: Electrónico

 
en línea
Zheng Xu, Zhong Su and Dongyue Dai    
In order to accurately locate personnel in underground spaces, positioning equipment is required to be mounted on wearable equipment. But the wearable inertial personnel positioning equipment moves with personnel and the phenomenon of measurement referen... ver más
Revista: Applied Sciences    Formato: Electrónico

 
en línea
Dong Fu, Hao Xia, Yujie Liu and Yanyou Qiao    
Most visual?inertial navigation systems (VINSs) suffer from moving objects and achieve poor positioning accuracy in dynamic environments. Therefore, to improve the positioning accuracy of VINS in dynamic environments, a monocular visual?inertial navigati... ver más
Revista: ISPRS International Journal of Geo-Information    Formato: Electrónico

 
en línea
Xin Dong, Yuzhe Gao, Jinglong Guo, Shiyu Zuo, Jinwu Xiang, Daochun Li and Zhan Tu    
Unmanned Aerial Vehicles (UAVs) autonomous approaching and landing on mobile platforms always play an important role in various application scenarios. Such a complicated autonomous task requires an integrated multi-sensor system to guarantee environmenta... ver más
Revista: Aerospace    Formato: Electrónico

 
en línea
Dimitrios Trigkakis, George Petrakis, Achilleas Tripolitsiotis and Panagiotis Partsinevelos    
GNSS positioning accuracy can be degraded in areas where the surrounding object geometry and morphology interacts with the GNSS signals. Specifically, urban environments pose challenges to precise GNSS positioning because of signal interference or interr... ver más
Revista: ISPRS International Journal of Geo-Information    Formato: Electrónico

 
en línea
Jinlin Gu, Mingchao Zhu, Lihua Cao, Ang Li, Wenrui Wang and Zhenbang Xu    
An uncalibrated visual servo strategy for the on-orbit automatic assembly of an ultra-high-caliber optical system. It is mainly employed to realize the static positioning and dynamic tracking of the desired image features in a harsh space environment whe... ver más
Revista: Applied Sciences    Formato: Electrónico

 
en línea
Alvin Lee, Suet-Peng Yong, Witold Pedrycz and Junzo Watada    
Drones play a pivotal role in various industries of Industry 4.0. For achieving the application of drones in a dynamic environment, finding a clear path for their autonomous flight requires more research. This paper addresses the problem of finding a nav... ver más
Revista: Algorithms    Formato: Electrónico

 
en línea
Yibo Zhang, Hao Sun, Fanhang Zhang, Baohua Zhang, Shutian Tao, Haitao Li, Kaijie Qi, Shaoling Zhang, Seishi Ninomiya and Yue Mu    
To realize autonomous navigation and intelligent management in orchards, vehicles require real-time positioning and globally consistent mapping of surroundings with sufficient information. However, the unstructured and unstable characteristics of orchard... ver más
Revista: Agronomy    Formato: Electrónico

 
en línea
Tianlei Wang, Fei Ding and Zhenxing Sun    
Human intelligence has the advantage for making high-level decisions in the remote control of underwater vehicles, while autonomous control is superior for accurate and fast close-range pose adjustment. Combining the advantages of both remote and autonom... ver más
Revista: Journal of Marine Science and Engineering    Formato: Electrónico

 
en línea
Yunpiao Cai, Weixing Qian, Jiaqi Zhao, Jiayi Dong and Tianxiao Shen    
In this paper, we propose a novel visual?inertial simultaneous localization and mapping (SLAM) method for intelligent navigation systems that aims to overcome the challenges posed by dynamic or large-scale outdoor environments. Our approach constructs a ... ver más
Revista: Applied Sciences    Formato: Electrónico

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