Issue 2

Permanent URI for this collection

https://diglib.eg.org/handle/10.2312/105

Editorial

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3rd Eurographics Workshop on Parallel Graphics and Visualization

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Join Now!/Network Service

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12th Eurographics Workshop on Rendering

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Multiresolution Surfaces having Arbitrary Topologies by a Reverse Doo Subdivision Method

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Samavati, Faramarz
; 
Mahdavi-Amiri, Nezam
; 
Bartels, Richard

An Adaptive Sampling Scheme for Out-of-Core Simplification

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Fei, Guangzheng
; 
Cai, Kangying
; 
Guo, Baining
; 
Wu, Enhua

Artistic Surface Rendering Using Layout of Text

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Surazhsky, Tatiana
; 
Elber, Gershon

The 3D Model Acquisition Pipeline

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Bernardini, Fausto
; 
Rushmeier, Holly

Universal Rendering Sequences for Transparent Vertex Caching of Progressive Meshes

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Bogomjakov, A.
; 
Gotsman, C.

Book Reviews

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Howard, Toby

Recent Advances in Mesh Morphing

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Alexa, Marc

6th Eurographics Workshop on Multimedia

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BibTeX (Issue 2)
                
@article{
10.1111:1467-8659.00569,

journal = {Computer Graphics Forum},
title = {{
Editorial}},

author = {},
year = {
2002},

publisher = {
Blackwell Publishers Ltd and the Eurographics Association},


ISSN = {1467-8659},

DOI = {
10.1111/1467-8659.00569}

}
                
@article{
10.1111:1467-8659.t01-1-00577,

journal = {Computer Graphics Forum},
title = {{
3rd Eurographics Workshop on Parallel Graphics and Visualization}},

author = {},
year = {
2002},

publisher = {
Blackwell Publishers Ltd and the Eurographics Association},


ISSN = {1467-8659},

DOI = {
10.1111/1467-8659.t01-1-00577}

}
                
@article{
10.1111:1467-8659.00578,

journal = {Computer Graphics Forum},
title = {{
Join Now!/Network Service}},

author = {},
year = {
2002},

publisher = {

ISSN = {1467-8659},

DOI = {
10.1111/1467-8659.00578}

}
                
@article{
10.1111:1467-8659.t01-2-00577,

journal = {Computer Graphics Forum},
title = {{
12th Eurographics Workshop on Rendering}},

author = {},
year = {
2002},

publisher = {
Blackwell Publishers Ltd and the Eurographics Association},


ISSN = {1467-8659},

DOI = {
10.1111/1467-8659.t01-2-00577}

}
                
@article{
10.1111:1467-8659.00572,

journal = {Computer Graphics Forum},
title = {{
Multiresolution Surfaces having Arbitrary Topologies by a Reverse Doo Subdivision Method}},

author = {
Samavati, Faramarz
 and 
Mahdavi-Amiri, Nezam
 and 
Bartels, Richard
},
year = {
2002},

publisher = {
Blackwell Publishers Ltd and the Eurographics Association},


ISSN = {1467-8659},

DOI = {
10.1111/1467-8659.00572}

}
                
@article{
10.1111:1467-8659.00571,

journal = {Computer Graphics Forum},
title = {{
An Adaptive Sampling Scheme for Out-of-Core Simplification}},

author = {
Fei, Guangzheng
 and 
Cai, Kangying
 and 
Guo, Baining
 and 
Wu, Enhua
},
year = {
2002},

publisher = {
Blackwell Publishers Ltd and the Eurographics Association},


ISSN = {1467-8659},

DOI = {
10.1111/1467-8659.00571}

}
                
@article{
10.1111:1467-8659.00570,

journal = {Computer Graphics Forum},
title = {{
Artistic Surface Rendering Using Layout of Text}},

author = {
Surazhsky, Tatiana
 and 
Elber, Gershon
},
year = {
2002},

publisher = {
Blackwell Publishers Ltd and the Eurographics Association},


ISSN = {1467-8659},

DOI = {
10.1111/1467-8659.00570}

}
                
@article{
10.1111:1467-8659.00574,

journal = {Computer Graphics Forum},
title = {{
The 3D Model Acquisition Pipeline}},

author = {
Bernardini, Fausto
 and 
Rushmeier, Holly
},
year = {
2002},

publisher = {
Blackwell Publishers Ltd and the Eurographics Association},


ISSN = {1467-8659},

DOI = {
10.1111/1467-8659.00574}

}
                
@article{
10.1111:1467-8659.00573,

journal = {Computer Graphics Forum},
title = {{
Universal Rendering Sequences for Transparent Vertex Caching of Progressive Meshes}},

author = {
Bogomjakov, A.
 and 
Gotsman, C.
},
year = {
2002},

publisher = {
Blackwell Publishers Ltd and the Eurographics Association},


ISSN = {1467-8659},

DOI = {
10.1111/1467-8659.00573}

}
                
@article{
10.1111:1467-8659.00576,

journal = {Computer Graphics Forum},
title = {{
Book Reviews}},

author = {
Howard, Toby
},
year = {
2002},

publisher = {
Blackwell Publishers Ltd and the Eurographics Association},


ISSN = {1467-8659},

DOI = {
10.1111/1467-8659.00576}

}
                
@article{
10.1111:1467-8659.00575,

journal = {Computer Graphics Forum},
title = {{
Recent Advances in Mesh Morphing}},

author = {
Alexa, Marc
},
year = {
2002},

publisher = {
Blackwell Publishers Ltd and the Eurographics Association},


ISSN = {1467-8659},

DOI = {
10.1111/1467-8659.00575}

}
                
@article{
10.1111:1467-8659.00577,

journal = {Computer Graphics Forum},
title = {{
6th Eurographics Workshop on Multimedia}},

author = {},
year = {
2002},

publisher = {
Blackwell Publishers Ltd and the Eurographics Association},


ISSN = {1467-8659},

DOI = {
10.1111/1467-8659.00577}

}

Browse

Recent Submissions

Now showing 1 - 12 of 12
  • No Thumbnail Available
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    Editorial
    (Blackwell Publishers Ltd and the Eurographics Association, 2002)
  • No Thumbnail Available
    Item
    3rd Eurographics Workshop on Parallel Graphics and Visualization
    (Blackwell Publishers Ltd and the Eurographics Association, 2002)
  • No Thumbnail Available
    Item
    Join Now!/Network Service
    (2002)
  • No Thumbnail Available
    Item
    12th Eurographics Workshop on Rendering
    (Blackwell Publishers Ltd and the Eurographics Association, 2002)
  • No Thumbnail Available
    Item
    Multiresolution Surfaces having Arbitrary Topologies by a Reverse Doo Subdivision Method
    (Blackwell Publishers Ltd and the Eurographics Association, 2002) Samavati, Faramarz; Mahdavi-Amiri, Nezam; Bartels, Richard
    We have shown how to construct multiresolution structures for reversing subdivision rules using global least squares models (Samavati and Bartels, Computer Graphics Forum, 18(2):97-119, June 1999). As a result, semiorthogonal wavelet systems have also been generated. To construct a multiresolution surface of an arbitrary topology, however, biorthogonal wavelets are needed. In Bartels and Samavati (Journal of Computational and Applied Mathematics, 119:29-67, 2000) we introduced local least squares models for reversing subdivision rules to construct multiresolution curves and tensor product surfaces, noticing that the resulting wavelets were biorthogonal (under an induced inner product). Here, we construct multiresolution surfaces of arbitrary topologies by locally reversing the Doo subdivision scheme. In a Doo subdivision, a coarse surface is converted into a fine one by the contraction of coarse faces and the addition of new adjoining faces. We propose a novel reversing process to convert a fine surface into a coarse one plus an error. The conversion has the property that the subdivision of the resulting coarse surface is locally closest to the original fine surface, in the least squares sense, for two important face geometries. In this process, we first find those faces of the fine surface which might have been produced by the contraction of a coarse face in a Doo subdivision scheme. Then, we expand these faces. Since the expanded faces are not necessarily joined properly, several candidates are usually at hand for a single vertex of the coarse surface. To identify the set of candidates corresponding to a vertex, we construct a graph in such a way that any set of candidates corresponds to a connected component. The connected components can easily be identified by a depth first search traversal of the graph. Finally, vertices of the coarse surface are set to be the average of their corresponding candidates, and this is shown to be equivalent to local least squares approximation for regular arrangements of triangular and quadrilateral faces.
  • No Thumbnail Available
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    An Adaptive Sampling Scheme for Out-of-Core Simplification
    (Blackwell Publishers Ltd and the Eurographics Association, 2002) Fei, Guangzheng; Cai, Kangying; Guo, Baining; Wu, Enhua
    Current out-of-core simplification algorithms can efficiently simplify large models that are too complex to be loaded in to the main memory at one time. However, these algorithms do not preserve surface details well since adaptive sampling, a typical strategy for detail preservation, remains to be an open issue for out-of-core simplification. In this paper, we present an adaptive sampling scheme, called the balanced retriangulation (BR), for out-of-core simplification. A key idea behind BR is that we can use Garland's quadric error matrix to analyze the global distribution of surface details. Based on this analysis, a local retriangulation achieves adaptive sampling by restoring detailed areas with cell split operations while further simplifying smooth areas with edge collapse operations. For a given triangle budget, BR preserves surface details significantly better than uniform sampling algorithms such as uniform clustering. Like uniform clustering, our algorithm has linear running time and small memory requirement.
  • No Thumbnail Available
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    Artistic Surface Rendering Using Layout of Text
    (Blackwell Publishers Ltd and the Eurographics Association, 2002) Surazhsky, Tatiana; Elber, Gershon
    An artistic rendering method of free-form surfaces with the aid of half-toned text that is laid-out on the given surface is presented. The layout of the text is computed using symbolic composition of the free-form parametric surface S(u, v) with cubic or linear Bezier curve segments C(t) = cu (t), cv (t), comprising the outline of the text symbols. Once the layout is constructed on the surface, a shading process is applied to the text, affecting the width of the symbols as well as their color, according to some shader function. The shader function depends on the surface orientation and the view direction as well as the color and the direction or position of the light source.
  • No Thumbnail Available
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    The 3D Model Acquisition Pipeline
    (Blackwell Publishers Ltd and the Eurographics Association, 2002) Bernardini, Fausto; Rushmeier, Holly
    Three-dimensional (3D) image acquisition systems are rapidly becoming more affordable, especially systems based on commodity electronic cameras. At the same time, personal computers with graphics hardware capable of displaying complex 3D models are also becoming inexpensive enough to be available to a large population. As a result, there is potentially an opportunity to consider new virtual reality applications as diverse as cultural heritage and retail sales that will allow people to view realistic 3D objects on home computers.Although there are many physical techniques for acquiring 3D data-including laser scanners, structured light and time-of-flight-there is a basic pipeline of operations for taking the acquired data and producing a usable numerical model. We look at the fundamental problems of range image registration, line-of-sight errors, mesh integration, surface detail and color, and texture mapping. In the area of registration we consider both the problems of finding an initial global alignment using manual and automatic means, and refining this alignment with variations of the Iterative Closest Point methods. To account for scanner line-of-sight errors we compare several averaging approaches. In the area of mesh integration, that is finding a single mesh joining the data from all scans, we compare various methods for computing interpolating and approximating surfaces. We then look at various ways in which surface properties such as color (more properly, spectral reflectance) can be extracted from acquired imagery. Finally, we examine techniques for producing a final model representation that can be efficiently rendered using graphics hardware.
  • No Thumbnail Available
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    Universal Rendering Sequences for Transparent Vertex Caching of Progressive Meshes
    (Blackwell Publishers Ltd and the Eurographics Association, 2002) Bogomjakov, A.; Gotsman, C.
    We present methods to generate rendering sequences for triangle meshes which preserve mesh locality as much as possible. This is useful for maximizing vertex reuse when rendering the mesh using a FIFO vertex buffer, such as those available in modern 3D graphics hardware. The sequences are universal in the sense that they perform well for all sizes of vertex buffers, and generalize to progressive meshes. This has been verified experimentally.
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    Book Reviews
    (Blackwell Publishers Ltd and the Eurographics Association, 2002) Howard, Toby
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    Recent Advances in Mesh Morphing
    (Blackwell Publishers Ltd and the Eurographics Association, 2002) Alexa, Marc
    Meshes have become a widespread and popular representation of models in computer graphics. Morphing techniques aim at transforming a given source shape into a target shape. Morphing techniques have various applications ranging from special effects in television and movies to medical imaging and scientific visualization. Not surprisingly, morphing techniques for meshes have received a lot of interest lately.This work sums up recent developments in the area of mesh morphing. It presents a consistent framework to classify and compare various techniques approaching the same underlying problems from different angles.
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    6th Eurographics Workshop on Multimedia
    (Blackwell Publishers Ltd and the Eurographics Association, 2002)