Results 31 to 40 of about 1,468,959 (299)
Resultants and loop closure [PDF]
International Journal of Quantum Chemistry, 2005 AbstractThe problem of tripeptide loop closure is formulated in terms of the angles {τi}describing the orientation of each peptide unit about the virtual axis joining theCαatoms. Imposing the constraint that at the junction of two such units the bond angle between the bondsCαNandCαCis fixed at some prescribed value θ results in a system of three ...
Coutsias, E A +3 more
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Foot & Ankle Surgery: Techniques, Reports & Cases, 2022 Treating necrotizing diabetic infections can lead to significant loss of skin and soft tissue, making primary closure ill-advised. Managing large diabetic wounds is challenging and more so in community hospitals with limited resources and specialists.1 ...
Ersta Ferryanto, DPM +2 more
doaj +1 more source
NDD: A 3D Point Cloud Descriptor Based on Normal Distribution for Loop Closure Detection [PDF]
IEEE/RJS International Conference on Intelligent RObots and Systems, 2022 Loop closure detection is a key technology for long-term robot navigation in complex environments. In this paper, we present a global descriptor, named Normal Distribution Descriptor (NDD), for 3D point cloud loop closure detection.
Rui Zhou +4 more
semanticscholar +1 more source
Data-driven Loop Closure Detection in Bathymetric Point Clouds for Underwater SLAM [PDF]
IEEE International Conference on Robotics and Automation, 2022 Simultaneous localization and mapping (SLAM) frameworks for autonomous navigation rely on robust data association to identify loop closures for back-end trajectory optimization. In the case of autonomous underwater vehicles (AUVs) equipped with multibeam
Jiarui Tan +3 more
semanticscholar +1 more source
Advanced Intelligent Systems, 2023 Herein, a real‐time, fast, tightly coupled simultaneous localization and mapping (SLAM) system is proposed. The deep neural network is used to segment the point cloud semantically to construct the point cloud semantic map descriptor, and the global ...
Yingzhong Tian +7 more
doaj +1 more source
PLSAV: Parallel loop searching and verifying for loop closure detection
IET Intelligent Transport Systems, 2021 Visual simultaneous localization and mapping (vSLAM), one of the most important applications in autonomous vehicles and robots to estimate the position and pose using inexpensive visual sensors, suffers from error accumulation for long‐term navigation ...
Zhe Yang +4 more
doaj +1 more source
Fast Loop Closure Detection via Binary Content [PDF]
2019 IEEE 15th International Conference on Control and Automation (ICCA), 2019 IEEE International Conference on Control and Automation (ICCA ...
Wang, Han +3 more
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Lightweight Unsupervised Deep Loop Closure
Robotics: Science and Systems XIV, 2018 Robust efficient loop closure detection is essential for large-scale real-time SLAM. In this paper, we propose a novel unsupervised deep neural network architecture of a feature embedding for visual loop closure that is both reliable and compact. Our model is built upon the autoencoder architecture, tailored specifically to the problem at hand.
Nathaniel Merrill, Guoquan Huang
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Asian Journal of Surgery, 2021 Background: Loop ileostomy has an important role in mitigating the serious effects of anastomotic leakage in colorectal surgery. However, the morbidity and mortality associated with ileostomy reversal cannot be overlooked.
HyungJoo Baik, Ki Beom Bae
doaj +1 more source
Robust AUV Visual Loop-Closure Detection Based on Variational Autoencoder Network
IEEE Transactions on Industrial Informatics, 2022 The visual loop-closure detection for autonomous underwater vehicles (AUVs) is a key component to reduce the drift error accumulated in simultaneous localization and mapping tasks.
Yangyang Wang +6 more
semanticscholar +1 more source