CAREER: Applications of Surface Correspondence in Computer Graphics

职业：表面对应在计算机图形学中的应用

• 批准号: 9875562
• 负责人: Adam Finkelstein
• 金额: $ 24.5万
• 依托单位: Princeton University
• 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: 1999-03-01 至 2003-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9875562&HistoricalAwards=false
• 关键词: CAREER; Applications; Surface; Correspondence; Computer

Three recent advances in technology -- the advent of the Web, the revolution of digital media, and the dramatic performance improvement of PCs -- have opened the door for a host of new 3D computer graphics applications. Access to this technology, as well as broadening interest in graphics among non-technical people, drives a growing demand for new ways to catalogue, view, modify, and protect 3D models. Several challenges to providing these tools lie in the growing size and heterogeneity of both the data available and the groups of people manipulating these data.This project investigates four application areas pertinent to 3Dsurfaces: (1) a content-based query method for 3D surfaces in order to find 3D models in a large database -- this technique will enable people to find 3D models on the Web and will enhance catalogue searching for the digital library of the future; (2) algorithms for surface interpolation in order to visualize either the time-evolution of an isosurface or an animation of the isosurface from low to high threshold values -- this technology will aid understanding of 3D data sets such as those resulting from medical scans or astrophysical simulations; (3) controls for reshaping a 3D model based on hand-drawn gestures and interactions with other models -- these controls permit 3D animators to reshape models in a natural way, and they allow 2Danimators to apply complex textures to hand-drawn figures; and (4) a method for insertion and detection of an invisible digital watermark in a 3D surface -- watermarking technology addresses concerns about copyright protection of proprietary models, and will thereby spur the proliferation of new models on the Web.A factor that binds these projects together is that they rely on two common underlying technologies. The projects share a commonfundamental technology -- multiresolution analysis -- a tool forrepresenting and manipulating data at different levels of detail. At a higher level, they share a common problem -- the surface correspondence problem -- which looks at how to map one surface onto another optimally. Solutions to this problem have direct application in the four projects highlighted above.

最近的三项技术进步——网络的出现、数字媒体的革命以及个人电脑性能的显着提高——为许多新的 3D 计算机图形应用程序打开了大门。 对这项技术的使用以及非技术人员对图形的兴趣不断扩大，推动了对编目、查看、修改和保护 3D 模型的新方法的需求不断增长。 提供这些工具的几个挑战在于可用数据和操作这些数据的人群的规模和异质性不断增长。该项目研究了与 3D 表面相关的四个应用领域：(1) 一种基于内容的 3D 表面查询方法，以便在大型数据库中查找 3D 模型 - 该技术将使人们能够在 Web 上查找 3D 模型，并将增强未来数字图书馆的目录搜索； (2) 表面插值算法，以便可视化等值面的时间演化或等值面从低阈值到高阈值的动画——该技术将有助于理解 3D 数据集，例如由医学扫描或天体物理模拟产生的数据集； (3) 基于手绘手势和与其他模型交互来重塑 3D 模型的控件——这些控件允许 3D 动画师以自然的方式重塑模型，并且允许 2Danimators 将复杂的纹理应用于手绘图形； (4) 在 3D 表面插入和检测不可见数字水印的方法——水印技术解决了对专有模型版权保护的担忧，从而刺激网络上新模型的扩散。将这些项目结合在一起的一个因素是它们依赖于两种共同的基础技术。 这些项目共享一个共同的基础技术——多分辨率分析——一种以不同细节级别表示和操作数据的工具。 在更高的层面上，他们有一个共同的问题——表面对应问题——它着眼于如何将一个表面最佳地映射到另一个表面上。 这个问题的解决方案直接应用于上面强调的四个项目中。