Proceedings Ninth Pacific Conference on Computer Graphics and Applications. Pacific Graphics 2001最新文献_第4页

A magnification lens for interactive volume visualization 用于交互式体积可视化的放大镜

Proceedings Ninth Pacific Conference on Computer Graphics and Applications. Pacific Graphics 2001 Pub Date : 2001-10-16 DOI: 10.1109/PCCGA.2001.962877

E. LaMar, B. Hamann, K. Joy

{"title":"A magnification lens for interactive volume visualization","authors":"E. LaMar, B. Hamann, K. Joy","doi":"10.1109/PCCGA.2001.962877","DOIUrl":"https://doi.org/10.1109/PCCGA.2001.962877","url":null,"abstract":"Volume visualization of large data sets suffers from the same problem that many other visualization modalities suffer from: either one can visualize the entire data set and lose small details or visualize a small region and lose the context. The authors we present a magnification lens technique for volume visualization. While the notion of a magnification-lens is not new, and other techniques attempt to simulate the physical properties of a magnifying lens, our contribution is in developing a magnification lens that is fast, can be implemented using a fairly small software overhead, and has a natural, intuitive appearance. The issue with magnification lens is the border, or transition region. The lens center and exterior have a constant zoom factor, and are simple to render. It is the border region that blends between the external and interior magnification, and has a nonconstant magnification. We use the \"perspective-correct textures\" capability, available in most current graphics systems, to produce a lens with a tessellated border region that approximates linear compression with respect to the radius of the magnification lens. We discuss how a \"cubic\" border can mitigate the discontinuities resulting from the use of a linear function, without significant performance loss. We discuss various issues concerning development of a three-dimensional magnification lens.","PeriodicalId":387699,"journal":{"name":"Proceedings Ninth Pacific Conference on Computer Graphics and Applications. Pacific Graphics 2001","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127774202","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: 85

Modeling the structure of the sea anemone and the sea star using hierarchical implicit surfaces 利用层次隐式表面对海葵和海星的结构进行建模

Proceedings Ninth Pacific Conference on Computer Graphics and Applications. Pacific Graphics 2001 Pub Date : 2001-10-16 DOI: 10.1109/PCCGA.2001.962882

Xikun Liang, Mai Ali Nur, B. Wyvill

引用次数: 1

Visibility preprocessing for urban scenes using line space subdivision 使用线空间细分的城市场景可视性预处理

Proceedings Ninth Pacific Conference on Computer Graphics and Applications. Pacific Graphics 2001 Pub Date : 2001-10-16 DOI: 10.1109/PCCGA.2001.962883

Jiří Bittner, Peter Wonka, M. Wimmer

引用次数: 60

Virtual autumn coloring system based on biological and fractal model 基于生物分形模型的秋季虚拟着色系统

Proceedings Ninth Pacific Conference on Computer Graphics and Applications. Pacific Graphics 2001 Pub Date : 2001-10-16 DOI: 10.1109/PCCGA.2001.962891

Shigenori Mochizuki, DongSheng Cai, T. Komiri, H. Kimura, R. Hori

引用次数: 26

An effective feature-preserving mesh simplification scheme based on face constriction 一种有效的基于人脸收缩的特征保持网格简化方案

Proceedings Ninth Pacific Conference on Computer Graphics and Applications. Pacific Graphics 2001 Pub Date : 2001-10-16 DOI: 10.1109/PCCGA.2001.962853

Jianhua Wu, Shimin Hu, Jiaguang Sun, Chiew-Lan Tai

引用次数: 51

Parallel volume rendering using PC graphics hardware 并行体渲染使用PC图形硬件

Proceedings Ninth Pacific Conference on Computer Graphics and Applications. Pacific Graphics 2001 Pub Date : 2001-10-16 DOI: 10.1109/PCCGA.2001.962895

Marcelo Magallón, M. Hopf, T. Ertl

引用次数: 36

Minimizing the distortion of affine spline motions 最小化仿射样条运动的畸变

Proceedings Ninth Pacific Conference on Computer Graphics and Applications. Pacific Graphics 2001 Pub Date : 2001-10-16 DOI: 10.1109/PCCGA.2001.962857

Dae-Eun Hyun, B. Jüttler, Myung-Soo Kim

引用次数: 14

Haptic sculpting of volumetric implicit functions 体积隐式功能的触觉雕刻

Proceedings Ninth Pacific Conference on Computer Graphics and Applications. Pacific Graphics 2001 Pub Date : 2001-10-16 DOI: 10.1109/PCCGA.2001.962881

Jing Hua, Hong Qin

{"title":"Haptic sculpting of volumetric implicit functions","authors":"Jing Hua, Hong Qin","doi":"10.1109/PCCGA.2001.962881","DOIUrl":"https://doi.org/10.1109/PCCGA.2001.962881","url":null,"abstract":"Implicit functions characterized by the zero-set of polynomial-based algebraic equations and other commonly-used analytic equations are extremely powerful in graphics, geometric design, and visualization. But the potential of implicit functions is yet to be fully realized due to the lack of flexible and interactive design techniques. The paper presents a haptic sculpting system founded upon scalar trivariate B-spline functions. All the solids sculpted in our environment are semi-algebraic sets of volumetric implicit functions. We develop a large variety of sculpting toolkits equipped with an intuitive haptic interface to facilitate the direct manipulation of implicit functions in real-time. To facilitate multiresolution editing and different levels of details, we employ three techniques: hierarchical B-splines, CSG-based functional composition, and knot insertion. Our experiments demonstrate that our algorithms and haptics-based techniques can greatly overcome the modeling difficulties associated with implicit functions. The novel modeling techniques and their haptics-based design principle are extensible to the design of arbitrary implicit functions.","PeriodicalId":387699,"journal":{"name":"Proceedings Ninth Pacific Conference on Computer Graphics and Applications. Pacific Graphics 2001","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130260391","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: 44

Efficient rendering of optical effects within water using graphics hardware 使用图形硬件在水中高效渲染光学效果

Proceedings Ninth Pacific Conference on Computer Graphics and Applications. Pacific Graphics 2001 Pub Date : 2001-10-16 DOI: 10.1109/PCCGA.2001.962894

Kei Iwasaki, T. Nishita, Y. Dobashi

引用次数: 19

Simulation of peeling using 3D-surface cellular automata 用三维表面元胞自动机模拟脱皮

Proceedings Ninth Pacific Conference on Computer Graphics and Applications. Pacific Graphics 2001 Pub Date : 2001-10-16 DOI: 10.1109/PCCGA.2001.962890

S. Gobron, Norishige Chiba

引用次数: 21