Proceedings. Computer Graphics International (Cat. No.98EX149)最新文献_第5页

Floating ring: a new tool for visualizing distortion in map projections 浮动环:在地图投影中可视化失真的新工具

Proceedings. Computer Graphics International (Cat. No.98EX149) Pub Date : 1998-06-22 DOI: 10.1109/CGI.1998.694300

J. Brainerd, A. Pang

引用次数: 8

VEplatform: a base system for distributed virtual reality 虚拟现实平台:分布式虚拟现实的基础系统

Proceedings. Computer Graphics International (Cat. No.98EX149) Pub Date : 1998-06-22 DOI: 10.1109/CGI.1998.694312

K. Demuynck, J. Broeckhove, F. Arickx

引用次数: 0

A method for filling n-sided holes in a surface 在表面上填充n边孔的方法

Proceedings. Computer Graphics International (Cat. No.98EX149) Pub Date : 1998-06-22 DOI: 10.1109/CGI.1998.694315

A. Savva, G. Clapworthy

引用次数: 0

An adaptable modular software architecture for distant control of virtual actors 一种适用于虚拟角色远程控制的模块化软件体系结构

Proceedings. Computer Graphics International (Cat. No.98EX149) Pub Date : 1998-06-22 DOI: 10.1109/CGI.1998.694273

J. Piesk, Felix Heimbrecht, Rudolf Opalla, G. Trogemann

引用次数: 1

Design of anisotropic functions within spatial analysis of data 数据空间分析中各向异性函数的设计

Proceedings. Computer Graphics International (Cat. No.98EX149) Pub Date : 1998-06-22 DOI: 10.1109/CGI.1998.694332

A. M. Aguilar, F. F. Higueruela

引用次数: 1

Deformable surfaces for feature based indirect volume rendering 基于特征的间接体渲染的可变形表面

Proceedings. Computer Graphics International (Cat. No.98EX149) Pub Date : 1998-06-22 DOI: 10.1109/CGI.1998.694335

C. Lürig, L. Kobbelt, T. Ertl

{"title":"Deformable surfaces for feature based indirect volume rendering","authors":"C. Lürig, L. Kobbelt, T. Ertl","doi":"10.1109/CGI.1998.694335","DOIUrl":"https://doi.org/10.1109/CGI.1998.694335","url":null,"abstract":"The authors present an indirect volume visualization method, based on the deformable surface model, which is a three dimensional extension of the snake segmentation method. In contrast to classical indirect volume visualization methods, this model is not based on iso-values but on boundary information. Physically speaking it simulates a combination of a thin plate and a rubber skin, that is influenced by forces implied by feature information extracted from the given data set. The approach proves to be appropriate for data sets that represent a collection of objects separated by distinct boundaries. These kind of data sets often occur in medical and technical tomography, as they demonstrate by a few examples. They propose a multilevel adaptive finite difference solver which generates a target surface minimizing an energy functional based on an internal energy of the surface and an outer energy induced by the gradient of the volume. This functional tends to produce very regular triangular meshes compared to results of the marching cubes algorithm. It makes this method attractive for meshing in numerical simulation or texture mapping. Red-green triangulation allows an adaptive refinement of the mesh. Special considerations have been made to prevent self inter-penetration of the surfaces.","PeriodicalId":434370,"journal":{"name":"Proceedings. Computer Graphics International (Cat. No.98EX149)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129606999","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: 17

Object and ray coherence in the optimization of the ray tracing algorithm 物体与光线相干性在光线跟踪算法中的优化

Proceedings. Computer Graphics International (Cat. No.98EX149) Pub Date : 1998-06-22 DOI: 10.1109/CGI.1998.694276

P. González, F. G. Cantó

引用次数: 5

Using physics based models in virtual reality for dynamic emulation of robotic systems 利用虚拟现实中基于物理的模型对机器人系统进行动态仿真

Proceedings. Computer Graphics International (Cat. No.98EX149) Pub Date : 1998-06-22 DOI: 10.1109/CGI.1998.694288

Y. F. Li, Jian-Gang Wang, J. Ho

引用次数: 1

Integrated registration and visualization of medical image data 医学图像数据的集成配准与可视化

Proceedings. Computer Graphics International (Cat. No.98EX149) Pub Date : 1998-06-22 DOI: 10.1109/CGI.1998.694253

P. Hastreiter, T. Ertl

{"title":"Integrated registration and visualization of medical image data","authors":"P. Hastreiter, T. Ertl","doi":"10.1109/CGI.1998.694253","DOIUrl":"https://doi.org/10.1109/CGI.1998.694253","url":null,"abstract":"Different imaging modalities give insight to vascular, anatomical and functional information which assist diagnosis and therapy planning in medicine. Registration and consecutive visualization allow to combine the image data and thereby convey more meaningful images to the clinician. Applying a voxel based approach based on mutual information, accurate and retrospective registration is provided. However, optimization and consecutive visualization procedures require a huge amount of trilinear interpolation operations to re-sample the data. Ensuring fast performance which is fundamental for medical routine, we suggest an integrated approach which takes advantage of the imaging and texture mapping subsystem of graphics computers. All trilinear interpolation is completely performed with hardware assisted 3D texture mapping. The 1D and 2D histograms of the datasets which are necessary for the calculation of mutual information are obtained with different hardware accelerated imaging operations. For the simultaneous and interactive visualization of the registered datasets a new approach was developed which allows for versatile fusion operations. Using similar procedures supported by hardware, contributes considerably to accelerate registration and visualization. Implementing our approach within a previously presented framework (Hastreiter et al., 1996) (Sommer et al., 1998) based on OpenInventor and OpenGL provides intuitive manipulation. Clinical examples show the value of our approach in practice.","PeriodicalId":434370,"journal":{"name":"Proceedings. Computer Graphics International (Cat. No.98EX149)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132414654","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: 65

Image retrieval in digital library based on symmetry detection 基于对称检测的数字图书馆图像检索

Proceedings. Computer Graphics International (Cat. No.98EX149) Pub Date : 1998-06-22 DOI: 10.1109/CGI.1998.694286

Kent K. T. Cheung, H. Ip

引用次数: 6