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Volume-preserving FFD for programmable graphics hardware

Stefanie Hahmann, Georges-Pierre Bonneau, Sébastien Barbier, Gershon Elber, Hans Hagen
2011 The Visual Computer  
Several authors have addressed the problem of volume preserving FFD.  ...  In this paper we take advantage from the multi-linear nature of the volume constraint in order to derive a simple, exact and explicit solution to the problem of volume preserving FFD.  ...  In [21] it has been shown that FFD can be accelerated significantly using programmable graphics hardware, but without volume preservation.  ... 
doi:10.1007/s00371-011-0608-5 fatcat:o2jqdorlxzc6lkjqhpzu7wwezm

Hardware-accelerated free-form deformation

Clint Chua, Ulrich Neumann
2000 Proceedings of the ACM SIGGRAPH/EUROGRAPHICS workshop on Graphics hardware - HWWS '00  
Hardware-acceleration for geometric deformation is developed in the framework of an extension to the OpenGL specification.  ...  This approach would support a wide range of users with an accelerated implementation of a wellunderstood deformation method, reducing the need for software deformation engines and the execution time penalty  ...  In addition, FFDs can control surface continuity as well as volume preservation. The reader is directed to [2, 4, 8] for more details on these properties. EFFD operation is divided into 3 steps.  ... 
doi:10.1145/346876.346884 fatcat:a2jcw7t2lffyfd2a2zysiojovy

Deformation of finite element meshes using directly manipulated free-form deformation

Norbert Frisch, Thomas Ertl
2002 Proceedings of the seventh ACM symposium on Solid modeling and applications - SMA '02  
In order to achieve this goal, we investigate a variety of approaches related to free-form deformation (FFD).  ...  For a shorter workflow, a feature for local deformation of the car components represented by FE meshes is desired.  ...  For OpenGL 2.0 more flexibility is planned in order to support programmable graphics hardware.  ... 
doi:10.1145/566313.566319 fatcat:ue5vqunnrvaxlo4plzgvteir7m

Deformation of finite element meshes using directly manipulated free-form deformation

Norbert Frisch, Thomas Ertl
2002 Proceedings of the seventh ACM symposium on Solid modeling and applications - SMA '02  
In order to achieve this goal, we investigate a variety of approaches related to free-form deformation (FFD).  ...  For a shorter workflow, a feature for local deformation of the car components represented by FE meshes is desired.  ...  For OpenGL 2.0 more flexibility is planned in order to support programmable graphics hardware.  ... 
doi:10.1145/566282.566319 dblp:conf/sma/FrischE02 fatcat:ji725jrisfdxfhdifwgobvto3y

An Efficient Wireless Sensor Network for Industrial Monitoring and Control

Juan Aponte-Luis, Juan Gómez-Galán, Fernando Gómez-Bravo, Manuel Sánchez-Raya, Javier Alcina-Espigado, Pedro Teixido-Rovira
2018 Sensors  
The robustness of the developed system and the security in the communications have been guaranteed both in hardware and software level.  ...  This paper presents the design of a wireless sensor network particularly designed for remote monitoring and control of industrial parameters.  ...  Then, the volume of gas in the room was measured for 80 seconds. Note that for the case of higher pressure (A) the gas sensor responds faster and the measured gas concentration is also higher.  ... 
doi:10.3390/s18010182 pmid:29320466 pmcid:PMC5795840 fatcat:jz3ou3jmrnfkzpbtd5jn2t23b4

Space deformations and their application to shape modeling

Alexis Angelidis, Karan Singh
2006 ACM SIGGRAPH 2006 Courses on - SIGGRAPH '06  
Acknowledgments Many thanks to Marie-Paule Cani, Geoff Wyvill and Scott King for their contribution to the work presented in this chapter.  ...  This will compress space around the point in a way that preserves the outside volume. Hence if the tool is inserted inside the shape, the tool's volume will be added to the shape's volume.  ...  to s − 1 do for each point p in the tool's bounding box do Figure 33 : A volume preserving deformation is obtained by decomposing a translation into circles of swirls. 3 steps have been used for this  ... 
doi:10.1145/1185657.1185672 dblp:conf/siggraph/AngelidisS06 fatcat:hzsereye6zgzjkbs4orlbagedq

Demons registration for in vivo and deformable laser scanning confocal endomicroscopy

2017 Journal of Biomedical Optics  
We also acknowledge the Ministry of Education Tier-1 grant for 2017-T1-001-053, "Key Techniques for the Statistic Shape Modeling in Anatomical Structure Reconstruction, Segmentation, and Registration."  ...  Acknowledgments This work was partially supported by a research grant (M408020000) from Nanyang Technological University and another (M4080634.B40) from the Institute for Media Innovation, NTU.  ...  Recently developed methods specially targeted at the graphics hardware pipeline 15,21 deform images using parameterized functions.  ... 
doi:10.1117/1.jbo.22.9.096009 pmid:28929643 fatcat:ohsm2pgizvgkfieunolneqsnd4

A Survey on Hair Modeling: Styling, Simulation, and Rendering

Kelly Ward, Florence Bertails, Tae-yong Kim, Stephen R. Marschner, Marie-paule Cani, Ming C. Lin
2007 IEEE Transactions on Visualization and Computer Graphics  
Realistic hair modeling is a fundamental part of creating virtual humans in computer graphics.  ...  Because of the difficult, often unsolved, problems that arise in all these areas, a broad diversity of approaches are used, each with strengths that make it appropriate for particular applications.  ...  Moreover, it can easily be parallelized to increase performance. 3) Graphics Hardware: Many impressive advances have been made recently in programmable graphics hardware.  ... 
doi:10.1109/tvcg.2007.30 pmid:17218740 fatcat:jyl5th74gjcc7mbqdlj3upiugi

GPU-Based Multiresolution Deformation using Approximate Normal Field Reconstruction

Martin Marinov, Mario Botsch, Leif Kobbelt
2007 Journal of Graphics Tools  
Multiresolution shape editing performs global deformations while preserving fine surface details by modifying a smooth base surface and reconstructing the modified detailed surface as a normal displacement  ...  We present an efficient technique for evaluating multiresolution deformations of high-resolution triangle meshes directly on the GPU.  ...  GPU processing for mesh deformations was an unexplored field until the advance of the programmable graphics hardware in the last few years.  ... 
doi:10.1080/2151237x.2007.10129234 fatcat:gp2mo4fjdbbjhdd44vd64jdkou

Principles and Applications of Medical Virtual Environments [article]

F. P. Vidal, F. Bello, K. Brodlie, N.W. John, D. Gould, R. Phillips, N. J. Avis
2004 Eurographics State of the Art Reports  
The medical domain offers many excellent opportunities for the application of computer graphics, visualization, and virtual environments, offering the potential to help improve healthcare and bring benefits  ...  The report begins with a description of the commonly used imaging modalities and then details the software algorithms and hardware that allows visualization of and interaction with this data.  ...  Since this time, a fourth generation of powerful consumer PC graphics cards has reached the market place with flexible programmable graphics pipelines.  ... 
doi:10.2312/egst.20041024 fatcat:of4sims3trcb5cuyyqjx7omoa4

Towards real-time remote processing of laparoscopic video

Zahra Ronaghi, Edward B. Duffy, David M. Kwartowitz, Robert J. Webster, Ziv R. Yaniv
2015 Medical Imaging 2015: Image-Guided Procedures, Robotic Interventions, and Modeling  
David Kwartowitz for his support, guidance and encouragement throughout my PhD.  ...  We have implemented and compared performance of compression, segmentation and registration algorithms on Clemson's Palmetto supercomputer using dual Nvidia graphics processing units (GPUs) per node and  ...  Processing of the volume of data generated by the stereo video feeds would be demanding for a local system, and thus HPC hardware is needed [14] .  ... 
doi:10.1117/12.2082224 dblp:conf/miigp/RonaghiDK15 fatcat:aydfqqb4cngspc3tc4wzq7xe3m

Virtual Fort San Domingo in Taiwan: A Study on Accurate and High Level of Detail 3D Modelling [chapter]

Shih-Yuan Lin, Sheng-Chih Chen
2011 Geospatial Techniques in Urban Planning  
Due to the rapid development of hardware and software for 3D object displaying and manipulation, digital archiving has become a trend nowadays for preserving and demonstrating heritages instead of the  ...  For a detailed scanning purpose, the Maritime Archaeology Programme used FARO Arms along with a 3D laser scanner to create digital renderings of timbers from the early modern "Wittenbergen" wreck that  ...  (Taiwan) for providing the terrestrial laser scanned data. The authors also would like to thank Tamsui Historical Museum (Taiwan) for enabling access to the study area used in the paper.  ... 
doi:10.1007/978-3-642-13559-0_8 fatcat:ilvkamheevc6ncbpvrqn7snweq

A novel approach for 3D head segmentation and facial feature points extraction

Achraf Othman, Oussama El Ghoul
2013 2013 International Conference on Electrical Engineering and Software Applications  
This work presents a novel approach for 3D head segmentation as well as for extraction of facial features vertices.  ...  These tasks are the preliminary task for retrieval, recognition, classification and tracking processes. 3D head regions are detected from a cloud of points using the ratio of geodesic to Euclidean distances  ...  In fact, thanks to the technological growth in hardware development, especially that of graphics card, it becomes possible to synthesize facial expressions in short time.  ... 
doi:10.1109/iceesa.2013.6578457 fatcat:7qdv72xp4fbvtjjti2wwv46w5i

Applications and Evaluations of Bio-Inspired approaches in Cloud Security: A Review

Md Manjurul Ahsan, Kishor Datta Gupta, Abhijit Kumar Nag, Subash Pouydal, Abbas Z. Kouzani, M A Parvez Mahmud
2020 IEEE Access  
Cloud computing gained much popularity in the recent past due to its many internet-based services related to data, application, operating system, and eliminating the need for central hardware access.  ...  This paper aims to explore previous research, recent studies, challenges, and scope for further analysis of cloud security.  ...  using back-propagation for preserving privacy in cloud computing [92] .  ... 
doi:10.1109/access.2020.3027841 fatcat:f4ufhhyuivfinjraxe2whjdo4a

High-precision baseband timing of 15 millisecond pulsars

A. W. Hotan, M. Bailes, S. M. Ord
2006 Monthly notices of the Royal Astronomical Society  
This result is an important step in the search for long-period gravitational waves using pulsar timing arrays. v  ...  This is interpreted as evidence for secular evolution of the line of sight to the emission cone, caused by General relativistic geodetic precession which tilts the spin axis of the pulsar.  ...  It will be necessary to eradicate or compensate for all these if we are to improve below 100 ns RMS.  ... 
doi:10.1111/j.1365-2966.2006.10394.x fatcat:7uayrbrcjvbftjnrj22wyiebea
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