5,625 Hits in 9.5 sec

A Progressive Refinement Approach for the Visualisation of Implicit Surfaces [chapter]

Manuel N. Gamito, Steve C. Maddock
2007 Communications in Computer and Information Science  
In this paper, we present an attempt at reducing the design cycle of an implicit surface modeler by introducing a progressive refinement rendering approach to the visualisation of implicit surfaces.  ...  Visualising implicit surfaces with the ray casting method is a slow procedure.  ...  CONCLUSIONS The rendering method, here presented, offers the possibility of visualising implicit surfaces with progressive refinement.  ... 
doi:10.1007/978-3-540-75274-5_6 fatcat:tozucwfe4nfvdi4sfttxjpwgqy


2006 Proceedings of the First International Conference on Computer Graphics Theory and Applications   unpublished
In this paper, we present an attempt at reducing the design cycle of an implicit surface modeler by introducing a progressive refinement rendering approach to the visualisation of implicit surfaces.  ...  Visualising implicit surfaces with the ray casting method is a slow procedure.  ...  CONCLUSIONS The rendering method, here presented, offers the possibility of visualising implicit surfaces with progressive refinement.  ... 
doi:10.5220/0001350400260033 fatcat:a5mr7oiwgzgthn7h6t2ljcszoq

Progressive refinement rendering of implicit surfaces

Manuel N. Gamito, Steve C. Maddock
2007 Computers & graphics  
In this paper we present a progressive refinement renderer for implicit surfaces that are Lipschitz continuous.  ...  The visualisation of implicit surfaces can be an inefficient task when such surfaces are complex and highly detailed.  ...  Acknowledgements The authors would like to thank Agata Opalach for providing us with the Dali model shown in Figure 6 .  ... 
doi:10.1016/j.cag.2007.04.011 fatcat:wndqtfk77bd47fzsyz5sfccwiu

Function-defined shape node for VRML [article]

Feng Min Lai, Alexei Sourin
2002 Eurographics State of the Art Reports  
The design, the implementation details, and the application examples of the proposed node are discussed. The software is available for downloading from the project website.  ...  This paper describes how the web-based visualisation can be greatly improved using the function-based shape modelling technique.  ...  Acknowledgements The authors thank the HyperFun developers and personally A.Pasko who kindly provided their codes and participated in the testing of the plug-in.  ... 
doi:10.2312/egs.20021006 fatcat:mnnktih3ljbmrjs5gd2w7zkc7i

Visualization, interpretation, and cognitive cybernetics

Gaynor S. Paton, Jonathan Henderson
2015 Interpretation  
A high level of cognition is required to collate the different types of information into a single, comprehensive interpretation in which heterogeneous information is progressively transformed into coherent  ...  Seismic data contains vast amounts of information and interpreters need to analyse a number of attributes of the data simultaneously to understand the behaviour of geological systems (Henderson, et al.  ...  In this paper, we look at how the fundamentals of cybernetics can be used to influence the design of techniques for two important aspects of 3-D visualisation and analysis of seismic attributes: attribute  ... 
doi:10.1190/int-2014-0283.1 fatcat:gslrqiwsozgh7emg5y5tmoavvu

A Platform for Quantifying Atrial Structural Remodelling

Orod Razeghi, Rashed Karim, John Whitaker, Catalina Tobon Gomez, Steven Niederer
2017 2017 Computing in Cardiology Conference (CinC)  
A standardised and transparent approach to the analysis of CMR imaging would facilitate a broader applicability of such tools for complex image analysis.  ...  In this paper, we introduce an open source platform, provide standardised solutions for extracting information from clinical images, and propose standard definitions of the atrial anatomy for comparing  ...  Our third method is a purely manual intervention. The user picks a number of seeds on the surface mesh visualised in an interactive renderer to define a contour.  ... 
doi:10.22489/cinc.2017.047-306 dblp:conf/cinc/RazeghiKWTN17 fatcat:muotyencxjgndl3retqvz2tc7e

Using Multi-agent Systems for Sampling and Rendering Implicit Surfaces

Pauline Jepp, Jörg Denzinger, Brian Wyvill, Mario Costa Sousa
2008 2008 XXI Brazilian Symposium on Computer Graphics and Image Processing  
Previous approaches to pen-and-ink style renderings of implicit surfaces were based on particle systems, which, for a complex surface, are slow to achieve a good distribution of particles and subsequently  ...  In this paper a Multi-Agent System for Sampling and Rendering Implicit Surfaces is presented (MASSRIS).  ...  Ray tracing is the most accurate method of visualising an implicit surface, but it is costly [13, 3] .  ... 
doi:10.1109/sibgrapi.2008.18 dblp:conf/sibgrapi/JeppDWS08 fatcat:q7gydw2xqnffjjlcahum26b2wa


Stuart Golodetz, Stephen L. Hicks, David W. Murray, Shahram Izadi, Philip H. S. Torr, Michael Sapienza, Julien P. C. Valentin, Vibhav Vineet, Ming-Ming Cheng, Victor A. Prisacariu, Olaf Kähler, Carl Yuheng Ren (+1 others)
2015 ACM SIGGRAPH 2015 Emerging Technologies on - SIGGRAPH '15  
to refine the predicted segmentation.  ...  Background In this demo, we present an interactive approach to the exciting problem of real-time 3D scene segmentation, building on a large body of recent work in geometric scene reconstruction and scene  ...  System Pipeline Our system is built on top of a dense 3D reconstruction pipeline, allowing real-time fusion of noisy depth maps into an implicit volumetric surface representation.  ... 
doi:10.1145/2782782.2792488 dblp:conf/siggraph/GolodetzSVVCPKR15 fatcat:dkxjyg54snbnjk2ckqg2evxbwa

RetrievalFuse: Neural 3D Scene Reconstruction with a Database [article]

Yawar Siddiqui, Justus Thies, Fangchang Ma, Qi Shan, Matthias Nießner, Angela Dai
2021 arXiv   pre-print
We demonstrate our neural scene reconstruction with a database for the tasks of 3D super resolution and surface reconstruction from sparse point clouds, showing that our approach enables generation of  ...  3D reconstruction of large scenes is a challenging problem due to the high-complexity nature of the solution space, in particular for generative neural networks.  ...  This work was supported by the Bavar-  ... 
arXiv:2104.00024v2 fatcat:x6qeztayojcj3junmmk46cnj7u

Function-based shape modelling extension of the Virtual Reality Modelling Language

Qi Liu, Alexei Sourin
2006 Computers & graphics  
In this paper we propose a new approach to web visualisation with VRML based on a function-based shape modelling, which unifies different types of mathematical functions in order to enrich the existing  ...  To illustrate our method and to prove its feasibility, we implemented it for web visualisation as the Function-based Extension of Virtual Reality Modelling Language.  ...  Progressive delivery, which first delivers a coarse model and gradually refines it [2] [3] [4] , and mesh compression, which compresses the model [5] [6] [7] [8] , are the two most commonly used approaches  ... 
doi:10.1016/j.cag.2006.03.006 fatcat:nymap6ukifdatdfeq2nd5mvxv4

Normal Assisted Stereo Depth Estimation

Uday Kusupati, Shuo Cheng, Rui Chen, Hao Su
2020 2020 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)  
We couple the learning of a multi-view normal estimation module and a multi-view depth estimation module.  ...  In addition, we propose a novel consistency loss to train an independent consistency module that refines the depths from depth/normal pairs.  ...  choose state-of-the-art approaches of a diverse kind.  ... 
doi:10.1109/cvpr42600.2020.00226 dblp:conf/cvpr/KusupatiCCS20 fatcat:wf4eddidhrdytduzfx22ezd3ha

Functional Modelling of Large Scattered Data Sets Using Neural Networks [chapter]

Q. Meng, B. Li, N. Costen, H. Holstein
2007 Lecture Notes in Computer Science  
The network employs an error-driven active learning algorithm and a multi-layer architecture, allowing progressive bottom-up reinforcement of local features in subdivisions of error clusters.  ...  We propose a self-organising hierarchical Radial Basis Function (RBF) network for functional modelling of large amounts of scattered unstructured point data.  ...  Fig. 3 . 3 Progressive surface reconstruction.  ... 
doi:10.1007/978-3-540-74690-4_45 fatcat:tnmcgrxpnndsdigobqmqjpevuu

Moving on Twitter

Hansi Senaratne, Arne Bröring, Tobias Schreck, Dominic Lehle
2014 Proceedings of the 7th ACM SIGSPATIAL International Workshop on Location-Based Social Networks - LBSN '14  
One important analysis perspective in understanding microblogged data is based on the notion of drift, considering a gradual change of real world phenomena observed across space, time, content, or a combination  ...  Among the many VGI sources, microblogged services, such as Twitter, are extensively used to disseminate information on a near real-time basis.  ...  principle creates a surface based on the distribution and density of Twitter message geotags.  ... 
doi:10.1145/2755492.2755497 dblp:conf/gis/SenaratneBSL14 fatcat:dtl7qmk7qjhnlng6tpitw3xzg4

Hierarchical Lighting Simulation for Outdoor Scenes [chapter]

Katja Daubert, Hartmut Schirmacher, François X. Sillion, George Drettakis
1997 Eurographics  
This new approach allows the hierarchical simulation of radiant energy exchanges in outdoor scenes for the first time, including terrain and botanical models as well as sunlight and skylight.  ...  In addition, refinement criteria are adapted to the particular characteristics of natural lighting.  ...  Thanks to Frédo Durand for help with the sky texture.  ... 
doi:10.1007/978-3-7091-6858-5_21 fatcat:bgyrqx32yrcpflejbmswprnoc4

Dynamic Delaunay tetrahedralisation of a deforming surface

Jean-Baptiste Debard, Romain Balp, Raphaëlle Chaine
2007 The Visual Computer  
In this article, we tackle the problem of producing a good evolving sampling of a deforming surface S, and maintaining its DT along the motion.  ...  Reconstruction algorithms make it possible to retrieve a surface from the Delaunay tetrahedralisation (DT) of a point sampling, whose density reflects the surface local geometry and thickness.  ...  Acknowledgement The authors wish to thank Mohammed Mousa for providing them with the code of his spherical harmonic decomposition [19] .  ... 
doi:10.1007/s00371-007-0172-1 fatcat:c7bs2cbod5c2vhg5vupgyvpaua
« Previous Showing results 1 — 15 out of 5,625 results