Scientific Visualization Conference (dagstuhl '97)最新文献_第2页

Interpolation and Approximation of Surfaces from Three-Dimensional Scattered Data Points 三维离散数据点曲面的插值与逼近

Scientific Visualization Conference (dagstuhl '97) Pub Date : 1997-06-09 DOI: 10.1109/DAGSTUHL.1997.1423116

R. Mencl, H. Müller

引用次数: 132

Bringing Computational Steering to the User 将计算转向带给用户

Scientific Visualization Conference (dagstuhl '97) Pub Date : 1997-06-09 DOI: 10.1109/DAGSTUHL.1997.1423126

J. J. Wijk, R. V. Liere, J. D. Mulder

引用次数: 23

Visualization over the World Wide Web 万维网上的可视化

Scientific Visualization Conference (dagstuhl '97) Pub Date : 1997-06-09 DOI: 10.1109/IV.1997.626485

K. Brodlie

引用次数: 12

Surface Reconstruction - An Introduction 表面重建-介绍

Scientific Visualization Conference (dagstuhl '97) Pub Date : 1997-06-09 DOI: 10.1109/DAGSTUHL.1997.1423118

H. Muller

引用次数: 7

Ray-Based Data Level Comparisons of Direct Volume Rendering Algorithms 基于光线的直接体绘制算法的数据级比较

Scientific Visualization Conference (dagstuhl '97) Pub Date : 1997-06-09 DOI: 10.1109/DAGSTUHL.1997.1423111

Kwansik Kim, A. Pang

{"title":"Ray-Based Data Level Comparisons of Direct Volume Rendering Algorithms","authors":"Kwansik Kim, A. Pang","doi":"10.1109/DAGSTUHL.1997.1423111","DOIUrl":"https://doi.org/10.1109/DAGSTUHL.1997.1423111","url":null,"abstract":"We present a new method for comparing direct volume rendering (DVR) algorithms. The motivations for this work are: the prevalence of DVR algorithms that produce slightly different images from the same data set and viewing parameters, and the limitations of existing image level comparison methods. In this paper, we describe and demonstrate the effectiveness of several ray-based metrics for data level comparison of direct volume rendering (DVR) algorithms. Unlike other papers on DVR, the focus of this paper is not on speed ups from approximations or implementations with parallel or specialized hardware, but rather on methods for comparison. However, unlike image level comparisons, where the starting point is 2D images, the main distinction of data level comparison is the use of intermediate 3D information to produce the individual pixel values during the rendering process. In addition to identifying the location and extent of differences in DVR images, these data level comparisons allow us to explain why these differences arise from different DVR algorithms. Because of the rich variety of DVR algorithms, finding a common framework for developing data level comparison metrics is one of the main challenges and contribution of this paper. In this paper, we report on how ray tracing can be used as a common framework for comparing a class of DVR algorithms.","PeriodicalId":268314,"journal":{"name":"Scientific Visualization Conference (dagstuhl '97)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134396312","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: 10

A Hybrid Web-Based Toolkit for Human Modeling 基于web的混合人类建模工具包

Scientific Visualization Conference (dagstuhl '97) Pub Date : 1997-06-09 DOI: 10.1109/DAGSTUHL.1997.1423096

Michael Bender, A. Ebert, Hans-Christian Rodrian, R. Klein

{"title":"A Hybrid Web-Based Toolkit for Human Modeling","authors":"Michael Bender, A. Ebert, Hans-Christian Rodrian, R. Klein","doi":"10.1109/DAGSTUHL.1997.1423096","DOIUrl":"https://doi.org/10.1109/DAGSTUHL.1997.1423096","url":null,"abstract":"Modern web-based Scientific Visualization applications try to overcome common limitations imposed by limited internet bandwidth, server bottlenecks or network latency. A further aspect is the desire to gain platform independence by solely using instruments which are platform independent by conception: the programming language Java, the Virtual Reality Modeling Language (VRML), or the 3D API Java3D.We present a prototype of a hybrid web-based Scientific Visualization system which makes use of the increasing computational power of modern desktop workstations and personal computers on the client side, and the superior performance provided by a powerful machine on the server side. In order to achieve high interaction rates and to balance computational load the user can dynamically assign selected tasks to his client or to the server.Within the scientific field of human modeling we have implemented a hybrid web-based toolkit for the modeling of human muscles and skin. Our application allows the on-line generation and manipulation of three-dimensional implicit muscle models in a heterogeneous network and it offers various parameters to adjust computation and response time versus rendering quality.","PeriodicalId":268314,"journal":{"name":"Scientific Visualization Conference (dagstuhl '97)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132894154","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: 0

Scattered Data Techniques for Surfaces 表面的分散数据技术

Scientific Visualization Conference (dagstuhl '97) Pub Date : 1997-06-09 DOI: 10.1109/DAGSTUHL.1997.1423115

S. Lodha, R. Franke

{"title":"Scattered Data Techniques for Surfaces","authors":"S. Lodha, R. Franke","doi":"10.1109/DAGSTUHL.1997.1423115","DOIUrl":"https://doi.org/10.1109/DAGSTUHL.1997.1423115","url":null,"abstract":"This survey presents several techniques for solving variants of the following scattered data interpolation problem: given a finite set of N points in R3, find a surface that interpolates the given set of points. Problems of this variety arise in numerous areas of applications such as geometric modeling and scientific visualization. A large class of solutions exists for these problems and many excellent surveys exist as well.The focus of this survey is on presenting techniques that are relatively recent. Some discussion of two popular variants of the scattered data interpolation problem -- trivariate (or volumetric) case and surface-on-surface -- is also included.Solutions are classified into one of the five categories: piecewise polynomial or rational parametric solutions, algebraic solutions, radial basis function methods, Shepard's methods and subdivision surfaces. Discussion on parametric solutions includes global interpolation by a single polynomial, interpolants based on data dependent triangulations, piecewise linear solutions such as alpha-shapes, and interpolants on irregular mesh.Algebraic interpolants based on cubic A-patches are described. Interpolants based on radial basis functions include Hardy's multiquadrics, inverse multiquadrics and thin plate splines. Techniques for blending local solutions and natural neighbor interpolants are described as variations of Shepard's methods. Subdivision techniques include Catmull-Clark subdivision technique and its variants and extensions. A brief discussion on surface interrogation techniques and visualization techniques is also included.","PeriodicalId":268314,"journal":{"name":"Scientific Visualization Conference (dagstuhl '97)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125189035","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: 114

Solid Fitting: Field Interval Analysis for Effective Volume Exploration 实体拟合:有效体积勘探的场间隔分析

Scientific Visualization Conference (dagstuhl '97) Pub Date : 1997-06-09 DOI: 10.1109/DAGSTUHL.1997.1423103

I. Fujishiro, Yuriko Takeshima

{"title":"Solid Fitting: Field Interval Analysis for Effective Volume Exploration","authors":"I. Fujishiro, Yuriko Takeshima","doi":"10.1109/DAGSTUHL.1997.1423103","DOIUrl":"https://doi.org/10.1109/DAGSTUHL.1997.1423103","url":null,"abstract":"In previous reports, the concept of solid fitting has been presented as a new indirect approach to volume visualization. Solid fitting relies on a simple, but powerful geometric data model, termed interval volume, that allows one to represent a three-dimensional subvolume for which the associated scalar values lie within a specified closed interval. This paper combines the latest results obtained through the course of the solid fitting project. After reviewing the salient features of interval volume and the fundamentals of solid fitting in the first two sections, Section 3 discusses improvements to the original solid fitting algorithm so as to extract interval volumes in a topologically-consistent manner. Also, the octree-based acceleration mechanism incorporated into the algorithm is analyzed further with a complex, time-evolving, volumetric data set. Section 4 is devoted to the presentation of several representative operations related to interval volume, including focusing and measurement-coupled visualization. In addition, a candidate for the volumetric coherence measure is introduced for adaptive solid fitting and its application to multi-scalar visualization. Lastly, Section 5 summarized the paper with some remarks on a hybrid volume exploration environment, in which solid fitting plays various roles.","PeriodicalId":268314,"journal":{"name":"Scientific Visualization Conference (dagstuhl '97)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131167093","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: 7

Constrained Navigation Environments 受限导航环境

Scientific Visualization Conference (dagstuhl '97) Pub Date : 1997-06-09 DOI: 10.1109/DAGSTUHL.1997.1423106

A. Hanson, E. Wernert, Stephen B. Hughes

引用次数: 43

Performance Evaluation of Multiresolution Isosurface Rendering 多分辨率等值面绘制的性能评价

Scientific Visualization Conference (dagstuhl '97) Pub Date : 1997-06-09 DOI: 10.1109/DAGSTUHL.1997.1423128

P. C. Wong, R. Bergeron

引用次数: 9