Short Papers

Permanent URI for this collection

https://diglib.eg.org/handle/10.2312/210

Comparison between two Three-Dimensional Edge Operators applied in a 3D Navigation Approach

[meta data] [files:
dillenseger_mom.pdf
]
Dillenseger, J.L.
; 
Sousa Santos, B.

Scanning and Reconstruction of human body parts

[meta data] [files:
Scanner_2.pdf
]
Borghese, N.A.
; 
Ferrari, S.

Behavior Authoring for VRML Applications in Industry

[meta data] [files:
doerner.pdf
]
Dörner, R.
; 
Elcacho, C.
; 
Luckas, V.

Towards more flexible shading architectures

[meta data] [files:
behrens.pdf
]
Behrens, U.

Immersive High Quality Communication

[meta data] [files:
ihqc_igd.pdf
]
Gräff, A.
; 
Schiffner, N.

Visualization of Dynamic Processes Recorded during Epileptic Seizures

[meta data] [files:
dillenseger_visu.pdf
]
Dillenseger, J.L.
; 
Wendling, F.

Dynamic Load Balancing in Distributed Virtual Environment

[meta data] [files:
mantler.pdf
]
Mantler, S.
; 
Schmalstieg, D.

The Hidden Face Determination Tree

[meta data] [files:
james.pdf
]
James, A.
; 
Day, A.M.

Interactive Analysis for MPEG-4 Facial Models Configuration

[meta data] [files:
abrantes.pdf
]
Antunes Abrantes, G.
; 
Pereira, F.

Navigation through Virtual 3D Worlds for Facilitating Childrens Spatial Orientation

[meta data] [files:
volbracht.pdf
]
Volbracht, S.
; 
Domik, G.

Using constraints to describe high-level behaviours in virtual worlds

[meta data] [files:
richard.pdf
]
Richard, N.
; 
Codognet, P.
; 
Grumbach, A.

Motion Reparametrization

[meta data] [files:
silva.pdf
]
da Silva, F.W.
; 
Velho, L.
; 
Gomes, J.

Reconstruction of 3D colored Data

[meta data] [files:
nullans.pdf
]
Nullans, S.
; 
Boissonnat, J.D.

Face-to-Face Communication System in Cyberspace by Voice Driven Avatar

[meta data] [files:
morishima.pdf
]
Morishima, S.
; 
Yotsukure, T.
; 
Fuji, E.

Agents in multi-user virtual environments

[meta data] [files:
paul.pdf
]
Paul, Christian
; 
Peters, Ralph
; 
Graeff, Andreas

Modelling Cloth Buckling and Drape

[meta data] [files:
shortpaperfin.pdf
]
Dias, J.M.S.
; 
Gamito, M.N.
; 
Rebordao, J.M.

A Semi-empirical Model for the Representation of Materials in Photorealistic Rendering

[meta data] [files:
warncke1.pdf
]
Hansmann, W.
; 
Warncke, H.

Virtual Sewing System for Apparel Design

[meta data] [files:
suh.pdf
]
Soo Suh, Y.
; 
Endou, Y.
; 
Gotoh, D.
; 
Kiyota, A.
; 
Okabe, H.
; 
Niwaya, H.
; 
Shigeru, I.

A Faster Algorithm for 3D Discrete Lines

[meta data] [files:
new.pdf
]
Boyer, V.
; 
Bourdin, J. J.

BibTeX (Short Papers)
@inproceedings{
:10.2312/egs.19981002,

booktitle = {
Eurographics 1998 - Short Papers},

editor = {
title = {{
Comparison between two Three-Dimensional Edge Operators applied in a 3D Navigation Approach}},

author = {
Dillenseger, J.L.
 and 
Sousa Santos, B.
},
year = {
1998},

publisher = {
Eurographics Association},


ISSN = {1017-4656},

DOI = {
/10.2312/egs.19981002}

}
@inproceedings{
:10.2312/egs.19981013,

booktitle = {
Eurographics 1998 - Short Papers},

editor = {
title = {{
Scanning and Reconstruction of human body parts}},

author = {
Borghese, N.A.
 and 
Ferrari, S.
},
year = {
1998},

publisher = {
Eurographics Association},


ISSN = {1017-4656},

DOI = {
/10.2312/egs.19981013}

}
@inproceedings{
:10.2312/egs.19981004,

booktitle = {
Eurographics 1998 - Short Papers},

editor = {
title = {{
Behavior Authoring for VRML Applications in Industry}},

author = {
Dörner, R.
 and 
Elcacho, C.
 and 
Luckas, V.
},
year = {
1998},

publisher = {
Eurographics Association},


ISSN = {1017-4656},

DOI = {
/10.2312/egs.19981004}

}
@inproceedings{
:10.2312/egs.19981001,

booktitle = {
Eurographics 1998 - Short Papers},

editor = {
title = {{
Towards more flexible shading architectures}},

author = {
Behrens, U.
},
year = {
1998},

publisher = {
Eurographics Association},


ISSN = {1017-4656},

DOI = {
/10.2312/egs.19981001}

}
@inproceedings{
:10.2312/egs.19981005,

booktitle = {
Eurographics 1998 - Short Papers},

editor = {
title = {{
Immersive High Quality Communication}},

author = {
Gräff, A.
 and 
Schiffner, N.
},
year = {
1998},

publisher = {
Eurographics Association},


ISSN = {1017-4656},

DOI = {
/10.2312/egs.19981005}

}
@inproceedings{
:10.2312/egs.19981003,

booktitle = {
Eurographics 1998 - Short Papers},

editor = {
title = {{
Visualization of Dynamic Processes Recorded during Epileptic Seizures}},

author = {
Dillenseger, J.L.
 and 
Wendling, F.
},
year = {
1998},

publisher = {
Eurographics Association},


ISSN = {1017-4656},

DOI = {
/10.2312/egs.19981003}

}
@inproceedings{
:10.2312/egs.19981007,

booktitle = {
Eurographics 1998 - Short Papers},

editor = {
title = {{
Dynamic Load Balancing in Distributed Virtual Environment}},

author = {
Mantler, S.
 and 
Schmalstieg, D.
},
year = {
1998},

publisher = {
Eurographics Association},


ISSN = {1017-4656},

DOI = {
/10.2312/egs.19981007}

}
@inproceedings{
:10.2312/egs.19981006,

booktitle = {
Eurographics 1998 - Short Papers},

editor = {
title = {{
The Hidden Face Determination Tree}},

author = {
James, A.
 and 
Day, A.M.
},
year = {
1998},

publisher = {
Eurographics Association},


ISSN = {1017-4656},

DOI = {
/10.2312/egs.19981006}

}
@inproceedings{
:10.2312/egs.19981000,

booktitle = {
Eurographics 1998 - Short Papers},

editor = {
title = {{
Interactive Analysis for MPEG-4 Facial Models Configuration}},

author = {
Antunes Abrantes, G.
 and 
Pereira, F.
},
year = {
1998},

publisher = {
Eurographics Association},


ISSN = {1017-4656},

DOI = {
/10.2312/egs.19981000}

}
@inproceedings{
:10.2312/egs.19981017,

booktitle = {
Eurographics 1998 - Short Papers},

editor = {
title = {{
Navigation through Virtual 3D Worlds for Facilitating Childrens Spatial Orientation}},

author = {
Volbracht, S.
 and 
Domik, G.
},
year = {
1998},

publisher = {
Eurographics Association},


ISSN = {1017-4656},

DOI = {
/10.2312/egs.19981017}

}
@inproceedings{
:10.2312/egs.19981012,

booktitle = {
Eurographics 1998 - Short Papers},

editor = {
title = {{
Using constraints to describe high-level behaviours in virtual worlds}},

author = {
Richard, N.
 and 
Codognet, P.
 and 
Grumbach, A.
},
year = {
1998},

publisher = {
Eurographics Association},


ISSN = {1017-4656},

DOI = {
/10.2312/egs.19981012}

}
@inproceedings{
:10.2312/egs.19981015,

booktitle = {
Eurographics 1998 - Short Papers},

editor = {
title = {{
Motion Reparametrization}},

author = {
da Silva, F.W.
 and 
Velho,  L.
 and 
Gomes, J.
},
year = {
1998},

publisher = {
Eurographics Association},


ISSN = {1017-4656},

DOI = {
/10.2312/egs.19981015}

}
@inproceedings{
:10.2312/egs.19981010,

booktitle = {
Eurographics 1998 - Short Papers},

editor = {
title = {{
Reconstruction of 3D colored Data}},

author = {
Nullans, S.
 and 
Boissonnat, J.D.
},
year = {
1998},

publisher = {
Eurographics Association},


ISSN = {1017-4656},

DOI = {
/10.2312/egs.19981010}

}
@inproceedings{
:10.2312/egs.19981008,

booktitle = {
Eurographics 1998 - Short Papers},

editor = {
title = {{
Face-to-Face Communication System in Cyberspace by Voice Driven Avatar}},

author = {
Morishima, S.
 and 
Yotsukure, T.
 and 
Fuji, E.
},
year = {
1998},

publisher = {
Eurographics Association},


ISSN = {1017-4656},

DOI = {
/10.2312/egs.19981008}

}
@inproceedings{
:10.2312/egs.19981011,

booktitle = {
Eurographics 1998 - Short Papers},

editor = {
title = {{
Agents in multi-user virtual environments}},

author = {
Paul, Christian
 and 
Peters, Ralph
 and 
Graeff, Andreas
},
year = {
1998},

publisher = {
Eurographics Association},


ISSN = {1017-4656},

DOI = {
/10.2312/egs.19981011}

}
@inproceedings{
:10.2312/egs.19981014,

booktitle = {
Eurographics 1998 - Short Papers},

editor = {
title = {{
Modelling Cloth Buckling and Drape}},

author = {
Dias, J.M.S.
 and 
Gamito, M.N.
 and 
Rebordao, J.M.
},
year = {
1998},

publisher = {
Eurographics Association},


ISSN = {1017-4656},

DOI = {
/10.2312/egs.19981014}

}
@inproceedings{
:10.2312/egs.19981018,

booktitle = {
Eurographics 1998 - Short Papers},

editor = {
title = {{
A Semi-empirical Model for the Representation of Materials in Photorealistic Rendering}},

author = {
Hansmann, W.
 and 
Warncke, H.
},
year = {
1998},

publisher = {
Eurographics Association},


ISSN = {1017-4656},

DOI = {
/10.2312/egs.19981018}

}
@inproceedings{
:10.2312/egs.19981016,

booktitle = {
Eurographics 1998 - Short Papers},

editor = {
title = {{
Virtual Sewing System for Apparel Design}},

author = {
Soo Suh, Y.
 and 
Endou, Y.
 and 
Gotoh, D.
 and 
Kiyota, A.
 and 
Okabe, H.
 and 
Niwaya, H.
 and 
Shigeru, I.
},
year = {
1998},

publisher = {
Eurographics Association},


ISSN = {1017-4656},

DOI = {
/10.2312/egs.19981016}

}
@inproceedings{
:10.2312/egs.19981009,

booktitle = {
Eurographics 1998 - Short Papers},

editor = {
title = {{
A Faster Algorithm for 3D Discrete Lines}},

author = {
Boyer, V.
 and 
Bourdin, J. J.
},
year = {
1998},

publisher = {
Eurographics Association},


ISSN = {1017-4656},

DOI = {
/10.2312/egs.19981009}

}

Browse

Recent Submissions

Now showing 1 - 19 of 19
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    Comparison between two Three-Dimensional Edge Operators applied in a 3D Navigation Approach
    (Eurographics Association, 1998) Dillenseger, J.L.; Sousa Santos, B.
    This paper will compare two 3D surface detection and normal estimation operators applied on a rough voxel database. These approaches can be applied as virtual endoscopy for the exploriation of 3D medical image volumes. The data context will be first explained, the two methodologies will be then described and evaluated on a 3D model data. Keywords - Surface detector, normal estimator, 3D moment operator, virtual endoscopy.
  • Thumbnail Image
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    Scanning and Reconstruction of human body parts
    (Eurographics Association, 1998) Borghese, N.A.; Ferrari, S.
    The reconstruction of 3D models of human body parts from range data is different with respect to that of general objects as they do not exhibit sharp discontinuities. Following this consideration, HRBF models which implement locally adapted filters are here introduced. They are based on stacking grids of Gaussians one over the other, where each grid operates at a different scale. The grids are not filled with Gaussians but these are inserted only in those crossings where the residual error is greater than the digitising noise. This allows to achieve a uniform reconstruction error. It results a very efficient and fast tool which can operate in real-time. Results on scanning a woman face are reported and discussed.
  • Thumbnail Image
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    Behavior Authoring for VRML Applications in Industry
    (Eurographics Association, 1998) Dörner, R.; Elcacho, C.; Luckas, V.
    As VRML offers behavior definition on different levels (animation behavior, interaction behavior, hypermedia behavior, application behavior) an authoring tool for VRML content creation has to comprise a dedicated behavior editor. An editor for this purpose has been conceived based upon object-oriented concepts. The concept stresses reusability and support for non-expert users. Reusable elements with object-specific behavior are used Clipart-like to author the scene easily. The editor itself offers a library of generally applicable behaviors, too. This enables the author to use a wide range of pre-defined behavior. The editor keeps track of the authors’ actions and out of this information a VRML file is created automatically. A first implementation of this editor focuses on special elements and behaviors needed in industrial applications.
  • Thumbnail Image
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    Towards more flexible shading architectures
    (Eurographics Association, 1998) Behrens, U.
    -
  • Thumbnail Image
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    Immersive High Quality Communication
    (Eurographics Association, 1998) Gräff, A.; Schiffner, N.
    This shows our vision of advanced high quality tele-communication which can be achieved by combining large-scale displays, real-time audio/video transmission, virtual reality and global, high bandwidth computer networks.
  • Thumbnail Image
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    Visualization of Dynamic Processes Recorded during Epileptic Seizures
    (Eurographics Association, 1998) Dillenseger, J.L.; Wendling, F.
    A visualization system dedicated to the analysis of spatio-temporal dynamics of epileptic processes recorded by stereoeletroencephalography (SEEG) is presented. It is based on the representation in a same anatomical scene of relevant measures (computed from SEEG signals) that characterize both intra-structure activities and interstructures relationships. Several propagation and synchronization mechanisms between brain structures are revealed by the visualization system.
  • Thumbnail Image
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    Dynamic Load Balancing in Distributed Virtual Environment
    (Eurographics Association, 1998) Mantler, S.; Schmalstieg, D.
    -
  • Thumbnail Image
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    The Hidden Face Determination Tree
    (Eurographics Association, 1998) James, A.; Day, A.M.
    Hidden surface removal can be achieved using the Priority Face Determination (PFD) tree to create a priority ordering of n polygons in log4=3 n time. In this paper, we describe the Hidden Face Determi- nation (HFD) tree which is based upon the PFD tree. The HFD tree is constructed in a similar way as the PFD tree, but an addition means that polygons completely hidden by others in the scene can be determined at each node. Thus, not only does the HFD tree calculate the priority order of polygons in log4=3 n time, but determines which polygons are invisible from a given location.
  • Thumbnail Image
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    Interactive Analysis for MPEG-4 Facial Models Configuration
    (Eurographics Association, 1998) Antunes Abrantes, G.; Pereira, F.
    -
  • Thumbnail Image
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    Navigation through Virtual 3D Worlds for Facilitating Childrens Spatial Orientation
    (Eurographics Association, 1998) Volbracht, S.; Domik, G.
    Spatial orientation is an important ability which should be encouraged in geometry courses of elementary schools. A preferred approach (in Germany) typically involves navigation and wayfinding tasks with pictures of a town depicted in a book. The use of computer-generated, virtual 3D worlds for teaching spatial orientation raises (especially for computer scientists) the two following questions: 1. How effective are particular navigation techniques, aids, and motion controls for facilitating children's spatial orientation and therefore the navigation in virtual worlds? and 2. What trade-off between realistic features and computer performance is optimal? A virtual 3D-city, developed in an interdisciplinary project, acts as a testing environment to answer these questions. Preliminary results indicate differences between navigation techniques of children vs. adults. The results will also be important to designers of virtual 3D worlds as educational software in general, who need such information for improving children's navigation in 3D space.
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    Using constraints to describe high-level behaviours in virtual worlds
    (Eurographics Association, 1998) Richard, N.; Codognet, P.; Grumbach, A.
    Our aim is to make the authoring of virtual worlds easier for non-specialists, in particular when programming pseudo-intelligent agents within virtual environments.We are designing a high-level language as well as a library of reusable building blocks. We are now working on the definition and the implementation of an homogeneous model for describing 3D objects, their attributes and their behaviours. Constraints are a simple declarative way to describe strong logical relationships between objects; those constraints must be satisfied as much as possible, in order to keep a system in a coherent state. When considering virtual worlds creation, we need to distinguish several kinds of relationships an author may want to express, especially constraints between agents living in an everchanging environment.
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    Motion Reparametrization
    (Eurographics Association, 1998) da Silva, F.W.; Velho, L.; Gomes, J.
    This paper presents an algorithm for reparametrization of 1D signals in the discrete domain, according to a userdefined velocity function. The application outlined in this work is the reparametrization of joint curves obtained from human motion captured data. Using the method described here we were able to create effects such as slowmotion and accelerated-time.
  • Thumbnail Image
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    Reconstruction of 3D colored Data
    (Eurographics Association, 1998) Nullans, S.; Boissonnat, J.D.
    -
  • Thumbnail Image
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    Face-to-Face Communication System in Cyberspace by Voice Driven Avatar
    (Eurographics Association, 1998) Morishima, S.; Yotsukure, T.; Fuji, E.
    Recently computer can make cyberspace to walk through by an interactive virtual reality technique. An avatar in cyberspace can bring us a virtual face-to-face communication environment. In this paper, we realize an avatar which has a real face in cyberspace and construct a multi-user communication system by voice transmission through network. Voice from microphone is analyzed and transmitted, then mouth shape and facial expression of avatar are synchronously estimated and synthesized on real time.
  • Thumbnail Image
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    Agents in multi-user virtual environments
    (Eurographics Association, 1998) Paul, Christian; Peters, Ralph; Graeff, Andreas
    In this paper,we introduce the use of agents in combinationwith virtual realities as one possibility to enhancefuture communication systems.These agents support the user and his/her interactionwith objects within the virtual world. Themain goal of our approachincludes the implementation of helpers, personalassistants, and tour guides tomake multi-user virtual environmentsmore lively and realistic.
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    Modelling Cloth Buckling and Drape
    (Eurographics Association, 1998) Dias, J.M.S.; Gamito, M.N.; Rebordao, J.M.
    We present a new computational model for plain woven fabrics. The model is able to represent known elastic behaviour in deformation, such as planar extension and shearing and out-of-plane bending, drape and buckling. The buckling behaviour is present both in shear and compression. Visual results of these deformation conditions are shown. The cloth is assumed to be an orthotropic linear elastic continuum, discretized by a mesh of triangles. For the planar deformation, we assume the hypothesis of the plate under plane stress, of the classical theory of Elasticity and each triangle corresponds to a Strain-Rosette. For the out-of plane deformation, we allow linear elasticity and non-linear displacement in bending, as expressed by the Bernoulli-Euler equation. Dynamic equilibrium is formulated using Newton’s 2nd law. We model non-linear elastic material behaviour, by piecewise linear approximation of measured data.
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    A Semi-empirical Model for the Representation of Materials in Photorealistic Rendering
    (Eurographics Association, 1998) Hansmann, W.; Warncke, H.
    From the beginning of Computer Graphics various models intended to describe the optical properties of different materials have been proposed. Some of these models are purely empirical [1]. Others are very close to physics but they have a large computational overhead [2,3]. In this paper we introduce a new model for the representation of different materials in photorealistic rendering which is based on the microfacet approach and tailored to ray tracing. The proposed ideas are based on an equation developed by Hall and Greenberg [4]. The proposed model fills the gap between existing very primitive and highly sophisticated models, and because it is fast to compute and easy to understand it is not only interesting for scientists but also for practical purposes in industry. At the end of this paper several step by step improvements are described which will be integrated in the proposed equation in the near future
  • Thumbnail Image
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    Virtual Sewing System for Apparel Design
    (Eurographics Association, 1998) Soo Suh, Y.; Endou, Y.; Gotoh, D.; Kiyota, A.; Okabe, H.; Niwaya, H.; Shigeru, I.
    An apparel CAD system capable of 3D simulation of clothes is reported. The system works on personal computers, has graphical user interface and requires minimal input to indicate how to sew and put on the dress. The system automatically generates triangular mesh and calculates the mechanically stable state (i.e. no dynamics) of the dress put on the designated body. Pattern of the cloth can be mapped on the 3D shape and the distribution of stress can be also displayed. Fast simulation is achieved by our original method for function minimization.
  • Thumbnail Image
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    A Faster Algorithm for 3D Discrete Lines
    (Eurographics Association, 1998) Boyer, V.; Bourdin, J. J.
    -