基于几何理解的交互式实例建模技术研究

项目名称： 基于几何理解的交互式实例建模技术研究

项目编号： No.61272219

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 自动化技术、计算机技术

项目作者： 孙正兴

作者单位： 南京大学

项目金额： 80万元

中文摘要： 本项目从模型结构的几何理解方法、结构建模的草绘交互方式和语义驱动的模型演变机制等三个主要方面，探索基于几何理解的交互式实例建模技术及方法，以支持数字几何模型的创作性重用。拟采用广义变粒度几何结构单元定义及其自适应拟合机制来实现模型结构的语义化几何理解；采取内容敏感的视角选择和线绘制与笔画匹配的决策优化相结合策略来增强结构建模过程的交互可控性；运用层次化结构特征组合优化与约束传播机制来支持模型演变过程的特征保持及其对复杂模型结构的适应性；进而,建立相对完整的实例建模方法体系并构建面向三维动漫游戏模型创作与资源重用服务应用平台。项目成果将不仅能满足工业造型、数字娱乐等数字设计领域中设计模式及其资源重用的需求，而且可拓宽数字几何处理语义化生成与应用发展方向的研究思路和技术途径。

中文关键词： 三维建模；模型分析；草绘交互；实例生成；

英文摘要： To achieve the creative reuse of digital geometry models, this project explores techniques and methodologies of the interactive modeling by example based on geometric structure discovery, focused on three main aspects: the methodes of geometric structure discovery, the sketch-based interactive mode for structure modeling, and the semantic-driven model evolving mechanism. Firstly, it would adopt the generalized various granularity definition of structural unit and self-adaptive fitting mechanism to code and extract semantic structure of the model. Secondly, context-sensitive viewpoint selection and line drawing strategy would be combined with stroke correspondences algorithm based on decision optimization to enhance the controllability of interactive structure modeling process. Thirdly, the combinatorial optimization and constraint propagation mechanism of hierarchical structure features are performed to support the preservation of the structural characteristics and the adaptability to complex structure during model evolution. Furthermore, a integrated methodology for the whole process of interactive modeling by example would be established, and a service-oriented application platform for the creation and reuse of model resources in the 3D animation or game modeling would be developed. The research results will n

英文关键词： 3D modeling；shape analysis；sketch-based interaction；example-based synthesis；