CHS: Small: Functional Proceduralization of 3D Geometric Models

CHS：小型：3D 几何模型的功能程序化

• 批准号: 1816514
• 负责人: Daniel Aliaga
• 金额: $ 49.99万
• 依托单位: Purdue University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-08-15 至 2022-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1816514&HistoricalAwards=false
• 关键词: CHS; Small; Functional; Proceduralization; 3D

While computational power and digital storage availability have increased tremendously in recent decades, the creation of useful 3D digital content is still difficult. Although we can find huge collections of existing 3D models on the Internet, these models are typically geometrically disorganized which severely limits their utility. The vision underlying this research is to facilitate semi-automatic, controllable content creation and editing of large and complex 3D models for use in digital simulation, visualization, entertainment, education, and cultural heritage, by converting unstructured data into organized and easily editable representations. With that goal in mind, this project will create digital tools that proceduralize a geometric model provided as input into a set of meaningful rules and their parameters so that the model is compact, can be altered in an intuitive way, and is fast to render. Project outcomes are expected to have broad impact in computer graphics applications spanning a wide variety of domains.The methodology underlying this work is to find a procedural representation (i.e., algorithm, rule set, and parameter values) that can generate a given input model while considering its function. A key novelty of the approach is the automatic production of a procedural representation and the learning of the function as well as the semantic structure of the object. The project will explore generation both of procedural representations in programming languages such as Python and Java Script and by using novel procedural representations such as adaptive geometric graph grammars or extensions to shape and split grammars. As a result, the methodology will help content creation by enabling the generation of functionally-valid variants of the same object, exposing parameters for performing high-level or low-level alterations, and completing the object with plausible details. The work will proceed with three main components: atomization (discovery of the atomic, or terminal, elements of the input model); patternization (finding and enumerating the parameterized rules and/or the parameter values that are collectively used to produce the input object); and synthetization (providing algorithms and tools to enable the efficient and intuitive generation of synthetic variations of the input object or objects).This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

尽管近几十年来计算能力和数字存储可用性大幅提高，但创建有用的 3D 数字内容仍然很困难。 尽管我们可以在互联网上找到大量现有的 3D 模型，但这些模型通常在几何上是杂乱无章的，这严重限制了它们的实用性。 这项研究的愿景是通过将非结构化数据转换为有组织且易于编辑的表示形式，促进大型复杂 3D 模型的半自动、可控内容创建和编辑，以用于数字模拟、可视化、娱乐、教育和文化遗产。 考虑到这一目标，该项目将创建数字工具，将作为输入提供的几何模型程序化为一组有意义的规则及其参数，以便模型紧凑，可以以直观的方式进行更改，并且可以快速渲染。 项目成果预计将对跨越多个领域的计算机图形应用产生广泛影响。这项工作的方法论是找到一种程序表示（即算法、规则集和参数值），该表示可以生成给定的输入模型，同时考虑到它的功能。 该方法的一个关键新颖之处在于自动生成过程表示以及学习函数以及对象的语义结构。 该项目将探索用 Python 和 Java Script 等编程语言生成过程表示，并使用自适应几何图语法或形状和分割语法的扩展等新颖的过程表示。 因此，该方法将通过生成同一对象的功能有效变体、公开用于执行高级或低级更改的参数以及用合理的细节完成对象来帮助内容创建。 这项工作将分为三个主要部分：原子化（发现输入模型的原子或终端元素）；模式化（查找并枚举共同用于生成输入对象的参数化规则和/或参数值）；和合成（提供算法和工具，以实现输入对象或多个对象的合成变体的高效和直观生成）。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力优点和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Video Folding: Increased Framerate for Semi-Repetitive Sequences

视频折叠：提高半重复序列的帧速率

• DOI: 10.1109/tvcg.2020.2992670
• 发表时间: 2020-05-06
• 期刊: IEEE Transactions on Visualization and Computer Graphics
• 影响因子: 5.2
• 作者: Chris May;Manuel M. Oliveira;Daniel G. Aliaga
• 通讯作者: Daniel G. Aliaga

Urban Brush: Intuitive and Controllable Urban Layout Editing

Urban Brush：直观可控的城市布局编辑

• DOI: 10.1145/3472749.3474787
• 发表时间: 2021-10
• 期刊: UIST '21: The 34th Annual ACM Symposium on User Interface Software and Technology
• 作者: Benes, Bedrich;Zhou, Xiaochen;Chang, Pascal;Cani, Marie
• 通讯作者: Cani, Marie

Urban Walkability Design using Virtual Population Simulation

使用虚拟人口模拟的城市步行性设计

• 发表时间: 2019-02
• 期刊: Computer graphics forum
• 影响因子: 2.5
• 作者: Mathew, Tharindu;Knob, Paulo;Musse, Soraia;Aliaga, Daniel
• 通讯作者: Aliaga, Daniel

Authoring consistent landscapes with flora and fauna

创作与动植物群一致的景观

• DOI: 10.1145/3476576.3476668
• 发表时间: 2021-07-17
• 期刊: ACM Transactions on Graphics (TOG)
• 作者: Pierre Ecormier;Guillaume Cordonnier;P. Carrez;Anne;Pooran Memari;Bedrich Benes;Marie
• 通讯作者: Marie

Investigating the Impact of Urban Layout Geometry on Urban Flooding

研究城市布局几何对城市洪水的影响

• 发表时间: 2019-02
• 期刊: and Services
• 作者: A. Mustafa; M. Bruwier
• 通讯作者: M. Bruwier