PECASE: Perceptual Issues in Data Visualization: Conveying 3D Shape and Depth through Texture

PECASE：数据可视化中的感知问题：通过纹理传达 3D 形状和深度

• 批准号: 9875368
• 负责人: Victoria Interrante
• 金额: $ 47.2万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-07-01 至 2005-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9875368&HistoricalAwards=false
• 关键词: PECASE; Perceptual; Issues; Data; Visualization

Visualization - the visual representation of information through images -is vital in a broad range of scientific and medical applications. A goodvisualization conveys the essential information in a complex datasetclearly and effectively, emphasizing important features and minimizingextraneous detail. The usefulness of a particular visualization techniquecan be quantified in terms of the extent to which it improves taskperformance for a given application. This makes it possible to comparedifferent methods or to pick optimal parameter values for a given method.The process of designing an effective visualization, however, remains forthe most part a black art, terribly ad hoc, largely guided by intuition.The PI's research is a quest for a deeper understanding of the sciencebehind this art, guided by theoretical and experimental insights from humanvisual perception. This can be used to enhance all computer interfacesthat use elements studied here.Specifically, the focus of the research is to investigateperceptually-based methods for more effectively conveying thethree-dimensional shape and relative depth of smoothly curving surfaces inscientific datasets. Key applications for this work include thevisualization of superimposed isovalue surfaces in 3D scalar fields, andthe combined visualization of external and internal structures in medicineand CAD. The investigator will begin by using controlled observerexperiments to thoroughly evaluate texture as a device for enhancing theperception of shape. This will identify and quantify the key aspects oftexture in interface design. The investigator will also pursue theautomatic generation of non-photorealistic, pen-and-ink stylerepresentations of arbitrary polygonally-defined objects for interactive applications. The advantage of such techniques is that some datasets need to be represented in a moresubtly indicative style than traditional graphics renderings. Complementingthe research component of this project is an educational component,directed at both undergraduate and graduate students, aimed at inspiringinterest and fostering creativity through hands-on experiences invisualization.

可视化 - 通过图像的信息表示 - 在广泛的科学和医学应用中至关重要。良好的视觉化将基本信息传达在复杂的数据表中，有效地强调重要特征和最小化的细节。特定可视化技术的有用性可根据其改善给定应用程序提高任务的程度来量化。 这使得与给定方法相比的方法或选择最佳参数值成为可能。然而，设计有效的可视化的过程仍然是大多数情况下是黑人艺术，极为临时，在很大程度上受直觉的指导。PI的研究是对这种艺术的更深入的理解，对这种艺术的理解，由人类和实验性地构成了人类的实验性。 这可以用来增强此处研究的所有计算机交流元素的使用元素。特别是，该研究的重点是调查基于敏感的方法，以更有效地传达了平滑弯曲表面的相对弯曲表面的相对深度。这项工作的关键应用包括在3D标量场中叠加的isOvalue表面的视觉化，以及MediceAneand CAD中外部和内部结构的合并可视化。研究者将首先使用受控的观察力特殊性来彻底评估纹理，作为增强形状感知的设备。这将识别并量化接口设计中的文本的关键方面。研究人员还将为交互式应用的任意多边形对象的非遗迹，笔和ink的造型物进行幻想生成。这种技术的优点是，与传统图形渲染相比，某些数据集需要以宽松的指示样式表示。补充该项目的研究组成部分是一种教育组成部分，针对本科生和研究生，旨在通过动手体验来启发感兴趣并促进创造力。