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Fast and robust anchor calibration in range-based wireless localization

Samuel Van de Velde, Patrick Van Torre, Heidi Steendam
2013 2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)  
In this paper we investigate the anchor calibration problem where we want to find the anchor positions when the anchors are not able to range between each other.  ...  This is a problem of practical interest because in many systems, the anchors are not connected in a network but are just simple responders to range requests.  ...  ACKNOWLEDGMENTS The first author gratefully acknowledges the financial support from the Belgian National Fund for Scientific Research (FWO Flanders).  ... 
doi:10.1109/icspcs.2013.6723945 dblp:conf/icspcs/VeldeTS13 fatcat:nm3mpqpmgzbijpdhdgsd5lxp6i

3D non-rigid registration using color: Color Coherent Point Drift

Marcelo Saval-Calvo, Jorge Azorin-Lopez, Andres Fuster-Guillo, Victor Villena-Martinez, Robert B. Fisher
2018 Computer Vision and Image Understanding  
A widely used technique is 3D non-rigid registration to estimate the transformation between two instances of a deforming structure.  ...  In particular, we use point color as well as 3D location as these are the common outputs of RGB-D cameras.  ...  The combination of color and location (3D position) information in the estimated correspondence improves the result in the presence of noise, missing data and outliers.  ... 
doi:10.1016/j.cviu.2018.01.008 fatcat:kb5qbhgslradxm4yd5jnfn6owa

Robust MR Spine Detection Using Hierarchical Learning and Local Articulated Model [chapter]

Yiqiang Zhan, Dewan Maneesh, Martin Harder, Xiang Sean Zhou
2012 Lecture Notes in Computer Science  
Second, owing to the non-rigidness of spine anatomies, we employ a local articulated model to effectively model the spatial relations across vertebrae and discs.  ...  ., localization and labeling of vertebrae and inter-vertebral discs, is required to have high robustness, in particular to severe diseases (e.g. scoliosis) and imaging artifacts (e.g. metal artifacts in  ...  The local rigid transformation can be quite large in the presence of certain spine diseases, e.g., scoliosis.  ... 
doi:10.1007/978-3-642-33415-3_18 fatcat:5yyn2gnouzh5bmbqkjbajumzrm

Time-Varying Surface Reconstruction of an Actor's Performance [chapter]

Ludovic Blache, Mathieu Desbrun, Céline Loscos, Laurent Lucas
2015 Lecture Notes in Computer Science  
At first, a pseudo-rigid transformation adjusts the pose to match the input visual hull as closely as possible. Then, local deformation is added to reconstruct fine details.  ...  An iterative approach is applied throughout the sequence in order to induce a deformation of the reference mesh for all input frames.  ...  Desbrun is partially funded by the National Science Foundation (CCF-1011944 grant), and gratefully acknowledges being hosted by the TITANE team in the context of an INRIA International Chair.  ... 
doi:10.1007/978-3-319-27857-5_9 fatcat:ylskdiqbjbh2te6yrr57wjjm7u

An Underwater Robotic Network for Monitoring Nuclear Waste Storage Pools [chapter]

Sarfraz Nawaz, Muzammil Hussain, Simon Watson, Niki Trigoni, Peter N. Green
2010 Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering  
In this paper, we outline the unique challenges of our application scenario which include robot localization in cluttered underwater environments and the effect of location errors on environment mapping  ...  However, the radioactive waste generated in these power plants must be stored for around 60 years in underwater storage pools before permanent disposal.  ...  We would also like to thank the National Nuclear Laboratory (NNL) for their contribution to this paper.  ... 
doi:10.1007/978-3-642-11528-8_17 fatcat:fk3ruvi5q5hndk5v7ddkdczjtq

Traction stress analysis and modeling reveal that amoeboid migration in confined spaces is accompanied by expansive forces and requires the structural integrity of the membrane–cortex interactions

Ai Kia Yip, Keng-Hwee Chiam, Paul Matsudaira
2015 Integrative Biology  
Acknowledgements We thank Fong Yin Lim and Yen Ling Koon for help with the computational model, Huiling Chen for help with the 3D traction force calculations, and insightful discussions with Chwee Teck  ...  The cell body also pushes into the gel to anchor the cell between the two gels (F anchor ).  ...  The cell body also pushes into the gel to anchor the cell between the two gels (F anchor ).  ... 
doi:10.1039/c4ib00245h pmid:26050549 fatcat:hpiaxxpvqzcrfpyawigftcinnq

Static and Dynamic Evaluation of an UWB Localization System for Industrial Applications

Mickaël Delamare, Remi Boutteau, Xavier Savatier, Nicolas Iriart
2020 Sci  
The aim of this article is to evaluate the performance of a UWB system to estimate the position of a person moving in an indoor environment.  ...  Many applications in the context of Industry 4.0 require precise localization.  ...  Infrared systems based on active beacons or using natural radiation are mainly used for rough positional estimation or for detecting the presence of a person in a room.  ... 
doi:10.3390/sci2010007 fatcat:bue654ol6ndsnb3jexqxvy45w4

Static and Dynamic Evaluation of an UWB Localization System for Industrial Applications

Mickaël Delamare, Remi Boutteau, Xavier Savatier, Nicolas Iriart
2020 Sci  
The aim of this article is to evaluate the performance of a UWB system to estimate the position of a person moving in an indoor environment.  ...  Many applications in the context of Industry 4.0 require precise localization.  ...  Infrared systems based on active beacons or using natural radiation are mainly used for rough positional estimation or for detecting the presence of a person in a room.  ... 
doi:10.3390/sci2020023 fatcat:7ih7zy6qhvhphet4ov4p6vr7dy

Static and Dynamic Evaluation of an UWB Localization System for Industrial Applications

Mickael Delamare, Remi Boutteau, Xavier Savatier, Nicolas Iriart
2019 Sci  
The aim of this article is to evaluate the performance of a UWB system to estimate the position of a person moving in an indoor environment.  ...  Many applications in the context of Industry 4.0 require precise localization.  ...  According to the results of Table 7 , for 5 anchors we have 5 cm in 2D and 6 cm in 3D. The performances are lower for 6 anchors.  ... 
doi:10.3390/sci1030062 fatcat:k64xedepync2bco2qoyvp4kkia

A Filtering Technique for Fragment Assembly- Based Proteins Loop Modeling with Constraints [chapter]

Federico Campeotto, Alessandro Dal Palù, Agostino Dovier, Ferdinando Fioretto, Enrico Pontelli
2012 Lecture Notes in Computer Science  
of the protein, where the presence of the solvent lessens the restrictions on the possible movements of the structure.  ...  Methods to predict the structure of a protein often rely on the knowledge of macro sub-structures and their exact or approximated relative positions in space.  ...  The research has been partially supported by a grant from the Army High Performance Computing Research Center, NSF grants CBET-0754525 and IIS-0812267, and PRIN 2008 (20089M932N).  ... 
doi:10.1007/978-3-642-33558-7_61 fatcat:oxg4sofywzcavezrisse2hzthe

COMPARISON OF LOW COST PHOTOGRAMMETRIC SURVEY WITH TLS AND LEICA PEGASUS BACKPACK 3D MODELSS

A. Masiero, F. Fissore, A. Guarnieri, M. Piragnolo, A. Vettore
2017 The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences  
Excluding the final part of the bastion left wing, where the presence of several poles make reconstruction more difficult, (RMSE) fitting error is 17.3cm, average error 11.5cm, and standard deviation 9.5cm  ...  Compared with the TLS survey, the considered photogrammetric model of the bastion results in a RMSE of 21.9cm, average error 13.4cm, and standard deviation 13.5cm.  ...  The authors acknowledge the key account manager of Leica Geosystems (Hexagon) Giovanni Abate for his precious help in supporting us during the development of this project.  ... 
doi:10.5194/isprs-archives-xlii-2-w8-147-2017 fatcat:io6udjczg5dzvjgs4snlbp6rgm

A hybrid radio/accelerometric approach to arm posture recognition

Matteo Giuberti, Marco Martalò, Gianluigi Ferrari
2015 Journal of Ambient Intelligence and Smart Environments  
In each case, the system parameters are optimized by minimizing a properly defined Position Error (PE).  ...  A radio fingerprinting-based approach, through measurements of the Received radio Signal Strengths (RSSs) from anchor nodes, is first used to localize the positions (among a set determined during a training  ...  Although the presence of some anchor nodes at fixed (outside the body) positions still forces the user to remain in its initial position in the room (in order to make the fingerprinting technique work  ... 
doi:10.3233/ais-150326 fatcat:tpe7nt4mlbfzfcs3fv3tftt7xy

Real-time 3D model acquisition

Szymon Rusinkiewicz, Olaf Hall-Holt, Marc Levoy
2002 ACM Transactions on Graphics  
The digitization of the 3D shape of real objects is a rapidly expanding field, with applications in entertainment, design, and archaeology.  ...  For the scans presented here, we have positioned the camera and projector 20 cm. apart, with a triangulation angle of 21 degrees.  ...  Acknowledgments This research grew out of a system built together with Li-Wei He, and benefitted from conversations with Lucas Pereira, Sean Anderson, James Davis, and many others at the Stanford Graphics  ... 
doi:10.1145/566570.566600 fatcat:cehjyt33avdohh73g6kwmltoqa

Real-time 3D model acquisition

Szymon Rusinkiewicz, Olaf Hall-Holt, Marc Levoy
2002 ACM Transactions on Graphics  
The digitization of the 3D shape of real objects is a rapidly expanding field, with applications in entertainment, design, and archaeology.  ...  For the scans presented here, we have positioned the camera and projector 20 cm. apart, with a triangulation angle of 21 degrees.  ...  Acknowledgments This research grew out of a system built together with Li-Wei He, and benefitted from conversations with Lucas Pereira, Sean Anderson, James Davis, and many others at the Stanford Graphics  ... 
doi:10.1145/566654.566600 fatcat:e7labnwpuvfe7nl65nfdv2bcly

Eigenvector synchronization, graph rigidity and the molecule problem

M. Cucuringu, A. Singer, D. Cowburn
2012 Information and Inference A Journal of the IMA  
In the noise-free case, the computed coordinates of the sensors in each patch must agree with their global positioning up to some unknown rigid motion, that is, up to translation, rotation and possibly  ...  to similar state-of-the art localization algorithms.  ...  EIGENVECTOR SYNCHRONIZATION, GRAPH RIGIDITY AND THE MOLECULE PROBLEM  ... 
doi:10.1093/imaiai/ias002 pmid:24432187 pmcid:PMC3889082 fatcat:gzb6o3bmjve7dlmoxvpke4n3xe
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