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2D or Not 2D: Bridging the Gap Between Tracking and Structure from Motion [chapter]

Karel Lebeda, Simon Hadfield, Richard Bowden
2015 Lecture Notes in Computer Science  
To address this, a novel approach is presented, combining techniques from the fields of visual tracking, structure from motion (SfM) and simultaneous localisation and mapping (SLAM).  ...  However, by modelling and learning the 3D structure of the object explicitly, such effects are mitigated.  ...  Acknowledgements This work was supported by the EPSRC grant "Learning to Recognise Dynamic Visual Content from Broadcast Footage" (EP/I011811/1).  ... 
doi:10.1007/978-3-319-16817-3_42 fatcat:x4yo3dhgyvgk5nzew4g4umfyri

A unified approach to moving object detection in 2D and 3D scenes

M. Irani, P. Anandan
1996 Proceedings of 13th International Conference on Pattern Recognition  
In this paper, we describe a unified approach to handling moving-object detection in both 2D and 3D scenes, with a strategy to gracefully bridge the gap between those two extremes.  ...  Previous approaches to this problem can be broadly divided into two classes: 2D algorithms which apply when the scene can be approximated by a flat surface and/or when the camera is only undergoing rotations  ...  ACKNOWLEDGMENTS This work was done while the authors were at Sarnoff Corporation, Princeton, N.J. It was supported in part by DARPA under contract DAAA15-93-C-0061.  ... 
doi:10.1109/icpr.1996.546117 dblp:conf/icpr/IraniA96 fatcat:cceppkibk5hlpoeptcs2mf3cmq

Decoupling of translational and rotational diffusion in quasi-2D colloidal fluids

Skanda Vivek, Eric R. Weeks
2017 Journal of Chemical Physics  
We observe the translational and rotational diffusion of dimer tracer particles in quasi-2D colloidal samples.  ...  Longer dimers do not exhibit fast rotations, and we find translational and rotational diffusion stay coupled for all ϕ.  ...  Our dimer experiments bridge the gap between aspect ratio ∼ 1.3 − 2. We see that close to the glass transition, small changes in dimer length cause significant changes in rotational diffusion.  ... 
doi:10.1063/1.4996733 pmid:28987111 fatcat:hfofdqx7hjfbxmswkv36twz4nu

A unified approach to moving object detection in 2D and 3D scenes

M. Irani, P. Anandan
1998 IEEE Transactions on Pattern Analysis and Machine Intelligence  
In this paper, we describe a unified approach to handling moving-object detection in both 2D and 3D scenes, with a strategy to gracefully bridge the gap between those two extremes.  ...  Previous approaches to this problem can be broadly divided into two classes: 2D algorithms which apply when the scene can be approximated by a flat surface and/or when the camera is only undergoing rotations  ...  ACKNOWLEDGMENTS This work was done while the authors were at Sarnoff Corporation, Princeton, N.J. It was supported in part by DARPA under contract DAAA15-93-C-0061.  ... 
doi:10.1109/34.683770 fatcat:xkk2hurllverzmgomxnczahb3q

A Comparative User Study of a 2D and an Autostereoscopic 3D Display for a Tympanoplastic Surgery [article]

Alexandra Baer, Antje Huebler, Patrick Saalfeld, Douglas Cunningham, Bernhard Preim
2014 Eurographics Workshop on Visual Computing for Biomedicine  
This paper presents the design and execution of a comparative experimental between-participant study with 42 participants.  ...  The study revealed an overwhelming support of the 3D autostereoscopic display compared to a 2D display regarding depth judgment, task completion time and the number of required scene and prosthesis interactions  ...  Acknowledgements The authors would like to thank Dr. U. Vorwerk for medical datasets and knowledge and M.  ... 
doi:10.2312/vcbm.20141190 fatcat:pov5l7whs5b4jk5gjgpkxcvbpe

Reconstruction of incomplete cell paths through a 3D-2D level set segmentation

Maia Hariri, Justin W. L. Wan, David R. Haynor, Sébastien Ourselin
2012 Medical Imaging 2012: Image Processing  
By enforcing minimum mean curvature on the level set surface, our segmentation model is able to extend the cell contours right before (and after) the cell disappears (and reappears) into the gaps, eventually  ...  Segmentation of fluorescent cell images has been a popular technique for tracking live cells.  ...  The latter would not be able to bridge the gap and would simply produce the same results as a three dimensional image segmentation.  ... 
doi:10.1117/12.911160 dblp:conf/miip/HaririW12 fatcat:ncgztsdamvbenkzgsrbbovyb54

The current understanding of how 2D polymers grow photochemically

Markus Lackinger, A. Dieter Schlüter
2021 European Journal of Organic Chemistry  
Therefore, it is not astounding that so far research focused on how to provide access to this intriguing class of organic 2D materials, how to prove their existence, and how to assess their structural  ...  We here collect and compare all the mechanistic information available for 2D polymer synthesis by photochemical means and point towards research directions to be followed in order to advance the fundamental  ...  Acknowledgements The authors are thankful for the many co-workers and collaboration partners who have creatively engaged themselves into the 2D polymer project.  ... 
doi:10.1002/ejoc.202101006 fatcat:jhzsj6mgxrbbjgs2zu5ntds4ni

Accurate indoor localization for RGB-D smartphones and tablets given 2D floor plans

Wera Winterhalter, Freya Fleckenstein, Bastian Steder, Luciano Spinello, Wolfram Burgard
2015 2015 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)  
In extensive experiments, we demonstrate that our approach is able to globally localize a user in a given 2D floor plan using a Google Tango device and to accurately track the user in such an environment  ...  We propose a sensor model that robustly estimates the likelihood of measurements and accommodates the disagreements between floor plans and real world data.  ...  not purely relying on structure from motion.  ... 
doi:10.1109/iros.2015.7353811 dblp:conf/iros/WinterhalterFSS15 fatcat:jlbafgu4yvgpflaqorotkhxgkq

2D Nanomaterials for Effective Energy Scavenging

Md Al Mahadi Hasan, Yuanhao Wang, Chris R. Bowen, Ya Yang
2021 Nano-Micro Letters  
The development of a nation is deeply related to its energy consumption. 2D nanomaterials have become a spotlight for energy harvesting applications from the small-scale of low-power electronics to a large-scale  ...  Scientists from around the world are working to utilize their engrossing properties to overcome the challenges in material selection and fabrication technologies for compact energy scavenging devices to  ...  If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly  ... 
doi:10.1007/s40820-021-00603-9 pmid:34138309 pmcid:PMC8006560 doaj:fc8f2bb76ebe405e850f4299661aec15 fatcat:p3ilkpodbbd5pev5yvoxzggn4q

Kayak drifter surface velocity observation for 2D hydraulic model validation

J.R. Barker, G.B. Pasternack, P.M. Bratovich, D.A. Massa, J.R. Wyrick, T.R. Johnson
2018 Rivers Research and Applications: an international journal devoted to river research and management  
Even though data from 116 drifters and fixed-point observations are different and the metrics to decide what constitutes 117 better performance vary between scientists, putting both types of data through  ...  depth and the thickness of 85 the surface layer moving at the same velocity are key differences between oceans and rivers that 86 change the technological specifications for a drifter.  ...  and when such models work well or 16 not.  ... 
doi:10.1002/rra.3238 fatcat:xq2m27lclvht5gxufzhry6zejy

From 2D leg kinematics to 3D full-body biomechanics-the past, present and future of scientific analysis of maximal instep kick in soccer

Gongbing Shan, Xiang Zhang
2011 Sports Medicine, Arthroscopy, Rehabilitation, Therapy & Technology  
This paper reviews articles published from 1960s to 2011, summarizing relevant findings, research trends and method development. It also discusses challenges faced by the field.  ...  The main aim of the paper is to promote soccer kicking studies through discussions on problem solving in the past, method development in the present, and possible research directions for the future.  ...  The results obtained through such studies have great potential to bridge the gap between researchers and practitioners, as such, make soccer studies more meaningful to coaches and athletes.  ... 
doi:10.1186/1758-2555-3-23 pmid:22011462 pmcid:PMC3224572 fatcat:b6apd7tip5h5njx3zzicwhdcku

Single electron transport and possible quantum computing in 2D materials [article]

K. L. Chiu
2018 arXiv   pre-print
Two-dimensional (2D) materials for their versatile band structures and strictly 2D nature have attracted considerable attention over the past decade.  ...  We will focus on: (1) the confinement and manipulation of charges in nanostructures fabricated from graphene and 2H-TMDs (2) 2D materials-based Josephson junctions for possible superconducting qubits (  ...  (b) First-principles calculated band structures for monolayer 1T'-MoS2. Eg and 2δ represent the fundamental gap and inverted gap, respectively.  ... 
arXiv:1804.02870v2 fatcat:fcl47umlh5gatgrzb4njgkso4i

Toward a 2D Modular and Self-Reconfigurable Robot for Conveying Microparts

Sebastian Mobes, Guillaume J. Laurent, Cedric Clevy, Nadine Le Fort-Piat, Benoit Piranda, Julien Bourgeois
2012 2012 Second Workshop on Design, Control and Software Implementation for Distributed MEMS  
Some prototype blocks have been realized and show a well working of the motion and a sufficient holding force.  ...  This paper describes the design, prototyping and control of a 2D modular and self-reconfigurable robot for conveying microparts.  ...  But because it is planed as a kind of stochastic self-reconfigurable matter with motion from outside self-motion has not been studied.  ... 
doi:10.1109/dmems.2012.20 fatcat:eg2uyxmo4zgufdcra4nsurid3y

FAST 3D CLUSTER TRACKING FOR A MOBILE ROBOT USING 2D TECHNIQUES ON DEPTH IMAGES

Arnaud Ramey, María Malfaz, Miguel A. Salichs
2013 Cybernetics and systems  
In this article, a fast and lightweight algorithm is presented for the detection and tracking of 3D clusters thanks to classic 2D techniques such as edge detection and connected components applied to the  ...  User simultaneous detection and tracking is an issue at the core of human-robot interaction (HRI).  ...  as there is no depth gap between two consecutive elements of the chain.  ... 
doi:10.1080/01969722.2013.789645 fatcat:ggqvwxb4tzbn3mcjulorzykdza

Dynamics at Specific Sites in Proteins Studied by 2D IR Vibrational Echo Spectroscopy

Megan C. Thielges, Jean K. Chung, Michael D. Fayer
2012 Biophysical Journal  
Using 2D analysis of TT cross-sections we determined diameters and contours indicating regular cylindrical structures.  ...  In live cells, tracking of single transcription factors labeled with a fluorescent protein reveals the kinetics of free diffusion as well as non specific and specific binding to DNA.  ...  that successfully bridges the gap between modeling and observed facts.  ... 
doi:10.1016/j.bpj.2011.11.1233 fatcat:dmbhrifavnajbg3auo4obfldze
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