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Fast and robust tracking of fluid surfaces

Matthias Müller
2009 Proceedings of the 2009 ACM SIGGRAPH/Eurographics Symposium on Computer Animation - SCA '09  
In this paper we present a method for tracking fluid surfaces using triangle meshes. This is done in two steps. First, the vertices are advected by the velocity field of the fluid.  ...  Surface tracking is an important problem with applications in many research fields. Among the most famous examples in computer graphics is the simulation and rendering of liquids with free surfaces.  ...  Our simple tracking method together with this straight forward way of preserving volume make possible fast and robust simulation of free surface liquids with very limited memory consumption.  ... 
doi:10.1145/1599470.1599501 dblp:conf/sca/Muller09 fatcat:rnn4x3tx4bgsvie3l3zf7pamje

Dynamic fluid surface acquisition using a camera array

Yuanyuan Ding, Feng Li, Yu Ji, Jingyi Yu
2011 2011 International Conference on Computer Vision  
In case one of the cameras loses track due to distortions or blurs, we use the rest of the cameras to construct the surface and then apply multi-perspective warping to locate the lost-track feature points  ...  Single or stereo camera based solutions are sensitive to refraction distortions, fast fluid motions, and calibration errors.  ...  Acknowledgement This project was partially supported by the National Science Foundation under grants MSPA-MCS-0625931 and IIS-RI-1016395, and by the Air Force Office of Scientific Research under the YIP  ... 
doi:10.1109/iccv.2011.6126533 dblp:conf/iccv/DingLJY11 fatcat:ixwrkkjzyvfu7cybulf7qliovq

A semi-Lagrangian contouring method for fluid simulation

Adam Bargteil
2005 Proceedings of the ACM SIGGRAPH 05 electronic art and animation catalog on - GRAPH '05  
We have extended the method to three-dimensions and demonstrated its use for tracking fluid surfaces.  ...  Overview In this sketch we present a semi-Lagrangian surface tracking method for use with fluid simulations.  ... 
doi:10.1145/1086057.1086162 dblp:conf/siggraph/Bargteil05 fatcat:s6hqbyj74vap7afpwa2bqty5zm

Pen-based interaction

Michael Haller
2007 ACM SIGGRAPH 2007 courses on - SIGGRAPH '07  
and move it to the interactive surface.  ...  -The user's finger may obsure parts of the screen -The screen gets dirty from finger prints -Less precise without pen Touch-Interaction (Fluid DTMouse) Touch-Interaction (Fluid DTMouse) Esenther  ... 
doi:10.1145/1281500.1281687 dblp:conf/siggraph/Haller07 fatcat:zpe4g6psf5er5keccgnitynnma

Computational algorithms for tracking dynamic fluid-structure interfaces in embedded boundary methods

K. Wang, J. Grétarsson, A. Main, C. Farhat
2012 International Journal for Numerical Methods in Fluids  
Both are capable of delivering all tracking information outlined above. The first algorithm is based on a projection approach and presented in Section 3.1. It is robust and fast.  ...  A robust, accurate, and computationally efficient interface tracking algorithm is a key component of an embedded computational framework for the solution of fluid-structure interaction problems with complex  ...  As a result, both interface tracking algorithms deliver a fast parallel performance.  ... 
doi:10.1002/fld.3659 fatcat:3cgovobpdjfgdke5ditqczxf24

Liquid simulation with mesh-based surface tracking

Chris Wojtan
2011 ACM SIGGRAPH 2011 Courses on - SIGGRAPH '11  
The course will begin with an overview of several existing liquid surface tracking techniques, discussing the pros and cons of each method.  ...  The final section of this course showcase the benefits and further applications of a mesh-based liquid surface, highlighting state-of-the-art methods for tracking colors and textures, maintaining liquid  ...  Since then, his main research field has been the development of fast and robust physically based simulation methods for computer games.  ... 
doi:10.1145/2037636.2037644 fatcat:26qh7iu2hjd2lfi5xskskzoexu

ConoSurf: Open-source 3D scanning system based on a conoscopic holography device for acquiring surgical surfaces

Mikael Brudfors, Verónica García-Vázquez, Begoña Sesé-Lucio, Eugenio Marinetto, Manuel Desco, Javier Pascau
2016 International Journal of Medical Robotics and Computer Assisted Surgery  
Methods We have developed an open-source software system that enables real-time surface scanning using a conoscopic holography device and a wide variety of tracking systems, integrated into pre-existing  ...  An alternative approach uses a tracked pointer; however, the pointer causes tissue deformation and requires sterilizing.  ...  CONFLICT OF INTEREST The authors declare that they have no conflict of interest.  ... 
doi:10.1002/rcs.1788 pmid:27868345 pmcid:PMC5638071 fatcat:kwj24o2ukbe6hhnrusllhsrp3q

Tracking surfaces with evolving topology

Morten Bojsen-Hansen, Hao Li, Chris Wojtan
2012 ACM Transactions on Graphics  
We reliably extract correspondences from a level set and track textures backwards through a fluid simulation.  ...  The structured output of our algorithm allows us to efficiently track information like colors and displacement maps, recover velocity information, and solve PDEs on the mesh as a post process.  ...  We also thank Nils Thuerey and Christopher Batty for helpful discussions. This work is supported by the SNF fellowship PBEZP2-134464.  ... 
doi:10.1145/2185520.2335404 fatcat:irdx33qv3za2fkqtxac7zcazd4

Tracking surfaces with evolving topology

Morten Bojsen-Hansen, Hao Li, Chris Wojtan
2012 ACM Transactions on Graphics  
We reliably extract correspondences from a level set and track textures backwards through a fluid simulation.  ...  The structured output of our algorithm allows us to efficiently track information like colors and displacement maps, recover velocity information, and solve PDEs on the mesh as a post process.  ...  We also thank Nils Thuerey and Christopher Batty for helpful discussions. This work is supported by the SNF fellowship PBEZP2-134464.  ... 
doi:10.1145/2185520.2185549 fatcat:wgjpr3hpbna3nminfkdlnftlei

Optical Tracking Velocimetry (OTV): Leveraging Optical Flow and Trajectory-Based Filtering for Surface Streamflow Observations

Flavia Tauro, Fabio Tosi, Stefano Mattoccia, Elena Toth, Rodolfo Piscopia, Salvatore Grimaldi
2018 Remote Sensing  
Five different feature detectors were compared and the features from accelerated segment test (FAST) resulted in the best balance between the number of features identified and successfully tracked as well  ...  In this work, we introduce a novel optical flow scheme, optical tracking velocimetry (OTV), that entails automated feature detection, tracking through the differential sparse Lucas-Kanade algorithm, and  ...  The founding sponsors had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, and in the decision to publish the results.  ... 
doi:10.3390/rs10122010 fatcat:dsncj5jbkjhmhcwwvd7ar6r6pe

Position tracking control of a smart flexible structure featuring a piezofilm actuator

Seung-Bok Choi, Chae-Cheon Cheong, Chul-Hee Lee
1996 Journal of Guidance Control and Dynamics  
W., and Jayasuriya, S., “A Time-Varying Sliding Surface for Fast and Robust Tracking Control of Second-Order Uncertain Systems,” Automatica, Vol. 30, No. 5, 1994, pp. 899-904. '3$Jotine, J. J.  ...  control theory'' for robust and accurate position tracking control of a smart flexible structure as- sociated with a piezofilm actuator.  ... 
doi:10.2514/3.21795 fatcat:vojc22sgjvd3le7xopsh4qx7ci

Level Set Methods and Fast Marching Methods

Marko Suba�i�
2003 Journal of Computing and Information Technology  
The areas are: geometry (curve/surface shrinkage and self-similar surfaces), grid generation, computer vision (shape detection and recognition), interface methods for combustion, solidification, fluid  ...  interface tracking, and basic schemes for initial and boundary value problems.  ... 
doi:10.2498/cit.2003.01.07 fatcat:sy55c5dfgfahxlvlaq7td6gibu

Multiphase surface tracking with explicit contouring

Xiaosheng Li, Xiaowei He, Xuehui Liu, Baoquan Liu, Enhua Wu
2014 Proceedings of the 20th ACM Symposium on Virtual Reality Software and Technology - VRST '14  
., and couple it to some existing fluid simulators. The results show that our approach is stable, flexible, and effective for tracking multiphase interfaces.  ...  Figure 1 : Coupling of our surface tracker with a viscosity fluid simulator, 13 phases. The bunnies were assigned with low viscosities while the balls assigned with high viscosities.  ...  This research is supported by NSFC grant (61272326) and the grant of University of Macau.  ... 
doi:10.1145/2671015.2671017 dblp:conf/vrst/LiHLLW14 fatcat:beqc5h6j2jefpn2ou6syh5zrn4

Sliding mode controller for robust force control o hydraulic actuator with environmental uncertainties

Jaouad Boumhidi, Mostafa Mrabti
2005 Revista Colombiana de Computación  
Because its robust character and superior performance in environmental uncertainties, a sliding mode controller, based on the so called equivalent control and robust control components is designed for  ...  control of the output force to track asymptotically the desired trajectory with no chattering problems.  ...  is the fluid density and 0 , 0 v x u P are respectively the pressure and the valve position of the linearization point.  ... 
doaj:7453a30aae1144e8a4c42c218ef3a9b9 fatcat:hcwc3zfbu5hz5nkgk3rbotk7km

Author Index

2010 2010 IEEE Computer Society Conference on Computer Vision and Pattern Recognition  
Real-Time Tracking and Recognition with Rotation-Invariant Fast Features Demo: Unified Tracking and Recognition with Rotation-Invariant Fast Features Workshop: Quantization Schemes for Low Bitrate  ...  Metric-Induced Optimal Embedding for Intrinsic 3D Shape Analysis Diffeomorphic Sulcal Shape Analysis for Cortical Surface Registration Toledo, Ricardo Fast and Robust Object Segmentation with the  ... 
doi:10.1109/cvpr.2010.5539913 fatcat:y6m5knstrzfyfin6jzusc42p54
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