Results 51 to 60 of about 1,468,959 (299)

Panoramic annular SLAM with loop closure and global optimization [PDF]

open access: yesApplied Optics, 2021
In this paper, we propose panoramic annular simultaneous localization and mapping (PA-SLAM), a visual SLAM system based on a panoramic annular lens. A hybrid point selection strategy is put forward in the tracking front end, which ensures repeatability ...
Hao Chen   +4 more
semanticscholar   +1 more source

Simultaneous Underwater Navigation and Mapping

open access: yesU.Porto Journal of Engineering, 2019
The use of underwater autonomous vehicles has been growing, allowing the performance of tasks that cause inherent risks to Human, namely in inspection processes near to structures.
Ana Rita Silva Gaspar, AnĂ­bal Matos
doaj   +1 more source

Incremental Bag of Words with Gradient Orientation Histogram for Appearance-Based Loop Closure Detection

open access: yesApplied Sciences, 2023
This paper proposes a novel approach for appearance-based loop closure detection using incremental Bag of Words (BoW) with gradient orientation histograms.
Yuni Li, Wu Wei, Honglei Zhu
doaj   +1 more source

Loop Closure Detection Based on Multi-Scale Deep Feature Fusion

open access: yesApplied Sciences, 2019
Loop closure detection plays a very important role in the mobile robot navigation field. It is useful in achieving accurate navigation in complex environments and reducing the cumulative error of the robot’s pose estimation.
Baifan Chen   +3 more
doaj   +1 more source

Primary linear closure with closed suction wound drain after ileostomy takedown [PDF]

open access: yesKorean Journal of Clinical Oncology, 2013
Purpose: Wound infection after ileostomy takedown is one of the significant complications. Conventional linear closure has been reported to be associated with a significantly higher incidence of wound infection. We aimed to evaluate the surgical outcomes
Mi Kyoung Hong   +3 more
doaj   +1 more source

Kinetics of Loop Formation in Polymer Chains [PDF]

open access: yes, 2007
We investigate the kinetics of loop formation in flexible ideal polymer chains (Rouse model), and polymers in good and poor solvents. We show for the Rouse model, using a modification of the theory of Szabo, Schulten, and Schulten, that the time scale ...
Hyeon, Changbong   +3 more
core   +2 more sources

FastLCD: A fast and compact loop closure detection approach using 3D point cloud for indoor mobile mapping

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2021
In simultaneous localization and mapping (SLAM), loop closure detection is a significant yet still open problem. It contributes to construct a globally consistent and accurate map.
Haodong Xiang   +5 more
doaj   +1 more source

Resting state connectivity between medial temporal lobe regions and intrinsic cortical networks predicts performance in a path integration task [PDF]

open access: yes, 2018
Humans differ in their individual navigational performance, in part because successful navigation relies on several diverse abilities. One such navigational capability is path integration, the updating of position and orientation during movement ...
Chrastil, Elizabeth R.   +2 more
core   +1 more source

RadarSLAM: Radar based Large-Scale SLAM in All Weathers

open access: yes, 2020
Numerous Simultaneous Localization and Mapping (SLAM) algorithms have been presented in last decade using different sensor modalities. However, robust SLAM in extreme weather conditions is still an open research problem.
Hong, Ziyang, Petillot, Yvan, Wang, Sen
core   +1 more source

Deep Pose Graph-Matching-Based Loop Closure Detection for Semantic Visual SLAM

open access: yesSustainability, 2022
This work addresses the loop closure detection issue by matching the local pose graphs for semantic visual SLAM. We propose a deep feature matching-based keyframe retrieval approach. The proposed method treats the local navigational maps as images. Thus,
Ran Duan, Yurong Feng, Chih-Yung Wen
semanticscholar   +1 more source

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