Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia最新文献_第3页

Adaptive streaming and rendering of large terrains using strip masks 使用条形遮罩的自适应流和渲染大型地形

Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia Pub Date : 2005-11-29 DOI: 10.1145/1101389.1101452

Joachim Pouderoux, Jean-Eudes Marvie

引用次数: 43

A 2D/3D hybrid geographical information system 二维/三维混合地理信息系统

Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia Pub Date : 2005-11-29 DOI: 10.1145/1101389.1101455

Stephen Brooks, Jacqueline L. Whalley

引用次数: 31

Master-element vector irradiance for large tessellated models 大型镶嵌模型的主元素矢量辐照度

Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia Pub Date : 2005-11-29 DOI: 10.1145/1101389.1101454

Grégory Lecot, B. Lévy, Laurent Alonso, J. Paul

{"title":"Master-element vector irradiance for large tessellated models","authors":"Grégory Lecot, B. Lévy, Laurent Alonso, J. Paul","doi":"10.1145/1101389.1101454","DOIUrl":"https://doi.org/10.1145/1101389.1101454","url":null,"abstract":"We propose a new global light simulation method for diffuse (or moderately glossy) scenes comprising highly tesselated models with simple topology (e.g., scanned meshes). By using the topological coherence of the surface, we show how to extend a classic Finite Element method called the Master Element: We generalize this method to efficiently handle tessellated models by using mesh parameterization and mesh extrapolation techniques. In addition, we propose a high-order and hierarchical extension of the Master Element method. Our method computes a compact representation of vector irradiance, represented by high-order wavelet bases. For totally diffuse scenes, the so-computed vector irradiance maps can be transformed into light maps. For moderatly glossy scenes, approximated view-dependent lighting can be computed and displayed in real-time by the GPU from the vector irradiance maps. Using our methods, view-dependent solutions for scenes with over one million polygons are computed in minutes and displayed in real time. As with clustering methods, the time complexity of the method is independent on the number of polygons. By efficiently capturing the lighting signal at a suitable scale, the method is made independent of the geometric discretization and solely depends on the lighting complexity. We demonstrate our method in various settings, with both sharp and soft shadows accurately represented by our hierarchical function basis.","PeriodicalId":286067,"journal":{"name":"Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124111568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Cluster-based solution for virtual and augmented reality applications 用于虚拟和增强现实应用的基于集群的解决方案

Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia Pub Date : 2005-11-29 DOI: 10.1145/1101389.1101448

Antoine Tarault, T. Convard, P. Bourdot, J. Vézien

引用次数: 1

Visual data mining of genomic databases by immersive graph-based exploration 基于沉浸式图的基因组数据库可视化数据挖掘

Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia Pub Date : 2005-11-29 DOI: 10.1145/1101389.1101418

N. Férey, Pierre-Emmanuel Gros, J. Hérisson, R. Gherbi

{"title":"Visual data mining of genomic databases by immersive graph-based exploration","authors":"N. Férey, Pierre-Emmanuel Gros, J. Hérisson, R. Gherbi","doi":"10.1145/1101389.1101418","DOIUrl":"https://doi.org/10.1145/1101389.1101418","url":null,"abstract":"Biologists are leading current research on genome characterization (sequencing, alignment, transcription), providing a huge quantity of raw data about many genome organisms. Extracting knowledge from this raw data is an important process for biologists, using usually data mining approaches. However, it is difficult to deals with these genomic information using actual bioinformatics data mining tools, because data are heterogeneous, huge in quantity and geographically distributed. In this paper, we present a new approach between data mining and virtual reality visualization, called visual data mining. Indeed Virtual Reality becomes ripe, with efficient display devices and intuitive interaction in an immersive context. Moreover, biologists use to work with 3D representation of their molecules, but in a desktop context. We present a software solution, Genome3DExplorer, which addresses the problem of genomic data visualization, of scene management and interaction. This solution is based on a well-adapted graphical and interaction paradigm, where local and global topological characteristics of data are easily visible, on the contrary to traditional genomic database browsers, always focused on the zoom and details level.","PeriodicalId":286067,"journal":{"name":"Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116602311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 19

Texture for volume character animation 体角色动画的纹理

Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia Pub Date : 2005-11-29 DOI: 10.1145/1101389.1101438

P. Shen, P. Willis

{"title":"Texture for volume character animation","authors":"P. Shen, P. Willis","doi":"10.1145/1101389.1101438","DOIUrl":"https://doi.org/10.1145/1101389.1101438","url":null,"abstract":"We present an approach to texture mapping volume datasets based on multiple semantic constraints. The approach is based on continuous space mappings to ensure good image quality. It requires only one intervention by the user, to determine key points where the texture must match an intermediate image of the original data. This can also be used to avoid the problem of texture being smeared over too large an area. The method uses three passes. In the first pass the texture is warped to an intermediate surface which is itself a projection of the volume object. This is used to ensure that the texture correctly aligns with user-supplied key points of the object. The use of key points to pin the texture in place ensures that the volume object can be animated. When rendering the object two further passes are used, first inversely mapping each point being rendered to a plenoptic surface and then inversely mapping to the intermediate surface. This three-part aspect additionally allows the texture image to be independent of the volume data. A data-dependent triangulation method is used to retain edge quality in texture images. We demonstrate an extension to 2.5D textures, extruded through the volume, using an approach consistent with 2D texture. This supports interactive sculpting of the volume model. Our overall goal is animated characters using textured volume data.","PeriodicalId":286067,"journal":{"name":"Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132958065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Selective component-based rendering 选择性的基于组件的呈现

Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia Pub Date : 2005-11-29 DOI: 10.1145/1101389.1101393

K. Debattista, V. Sundstedt, Luís Paulo Santos, A. Chalmers

{"title":"Selective component-based rendering","authors":"K. Debattista, V. Sundstedt, Luís Paulo Santos, A. Chalmers","doi":"10.1145/1101389.1101393","DOIUrl":"https://doi.org/10.1145/1101389.1101393","url":null,"abstract":"The computational requirements of full global illumination rendering are such that it is still not possible to achieve high-fidelity graphics of very complex scenes in a reasonable time on a single computer. By identifying which computations are more relevant to the desired quality of the solution, selective rendering can significantly reduce rendering times. In this paper we present a novel component-based selective rendering system in which the quality of every image, and indeed every pixel, can be controlled by means of a component regular expression (crex). The crex provides a flexible mechanism for controlling which components are rendered and in which order. It can be used as a strategy for directing the light transport within a scene and also in a progressive rendering framework. Furthermore, the crex can be combined with visual perception techniques to reduce rendering computation times without compromising the perceived visual quality. By means of a psychophysical experiment we demonstrate how the crex can be successfully used in such a perceptual rendering framework. In addition, we show how the crex's flexibility enables it to be incorporated in a predictive framework for time-constrained rendering.","PeriodicalId":286067,"journal":{"name":"Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129466607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 26

Predictive sunlight simulation for the remodeling of the Real Madrid stadium 预测阳光模拟改造皇家马德里体育场

Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia Pub Date : 2005-11-29 DOI: 10.1145/1101389.1101416

F. Gomez, F. Serón, J. Aporta, D. Gutierrez

引用次数: 1

Efficient light scattering through thin semi-transparent objects 有效的光散射通过薄的半透明物体

Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia Pub Date : 2005-11-29 DOI: 10.1145/1101389.1101415

J. Frisvad, Niels Jørgen Christensen, P. Falster

{"title":"Efficient light scattering through thin semi-transparent objects","authors":"J. Frisvad, Niels Jørgen Christensen, P. Falster","doi":"10.1145/1101389.1101415","DOIUrl":"https://doi.org/10.1145/1101389.1101415","url":null,"abstract":"This paper concerns real-time rendering of thin semi-transparent objects. An object in this category could be a piece of cloth, eg. a curtain. Semi-transparent objects are visualized most correctly using volume rendering techniques. In general such techniques are, however, intractable for real-time applications. Surface rendering is more efficient, but also inadequate since semi-transparent objects should have a different appearance depending on whether they are front-lit or back-lit. The back-lit side of a curtain, for example, often seems quite transparent while the front-lit side seems brighter and almost opaque. To capture such visual effects in the standard rendering pipeline, Blinn [1982] proposed an efficient local illumination model based on radiative transfer theory. He assumed media of low density, hence, his equations can render media such as clouds, smoke, and dusty surfaces. Our observation is that Chandrasekhar [1960] has derived the same equations from a different set of assumptions. This alternative derivation makes the theory useful for realistic real-time rendering of dense, but thin, semi-transparent objects such as cloth. We demonstrate that application of the theory in this new area gives far better results than what is obtainable with a traditional real-time rendering scheme using a constant factor for alpha blending.","PeriodicalId":286067,"journal":{"name":"Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116065386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

One-click lattice extraction from near-regular texture 一键点阵提取近规则纹理

Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia Pub Date : 2005-11-29 DOI: 10.1145/1101389.1101440

Kevin Sookocheff, D. Mould

引用次数: 5