Illustrative Deformation

图解变形教授。D.西尔弗系新泽西州立大学罗格斯大学电气与计算机工程系研究摘要：3D数据(来自3D成像、模拟、传感)在医学、生物学、工程学、心理学、安全与筛查和考古学等许多科学领域中都很普遍。然而，对3D数据的有效探索仍然是一项具有挑战性的任务。尤其困难的是，仅基于有限的可用交互(如旋转和切片)来规划复杂的3D程序。在科学、医学和工程中，手绘插图通常包括操纵物体的一部分，以描绘程序或过程的阶段和结果。这些插图有助于发现隐藏的特征或揭示对象不同组成部分之间的空间关系。这项研究涉及探索一套更“活跃”的3D可视化技术，它模仿插图中的样式，并允许使用切割、拉和剥离等操作来查询3D数据。这些技术是基于“示意性变形”的概念。示意性变形是一种非基于物理的方法，用于指定和实现包含原始数据中不存在的切割、解剖、扭曲和各种其他形式的变形的可视化。变形通过应用于3D数据集的图标运算符表示，类似于将纹理应用于多边形模型。通过对新创建的表面使用反向渲染和正确的法线计算，可以在交互速度下获得高质量的插图般的图像。本研究通过图解形变来研究、开发和验证3D交互范式。

ILLUSTRATIVE DEFORMATIONProf. D. Silver, Dept. of Electrical and Computer Engineering, Rutgers, The State University of New JerseyResearch Abstract:3D data (from 3D imaging, simulations, sensing) is prevalent in many scientific fields such as medicine, biology, engineering, psychology, security & screening, and archeology. However, the effective exploration of 3D data is still a challenging task. Especially difficult is the planning of a complex 3D procedure based solely on the limited interaction available, such as rotation and slicing. In science, medicine and engineering, hand-drawn illustrations often include manipulating part of an object to depict the stages and the outcomes of a procedure or process. These illustrations help to uncover hidden features or reveal the spatial relationship between different components of the object.This research involves the exploration of a more "active" set of visualization techniques for 3D that mimic styles in illustrations and which will allow querying of 3D data using manipulations such as cutting, pulling and peeling. The techniques are based on the concept of "illustrative deformation". Illustrative deformation is a non-physically-based means for specifying and realizing visualizations that contain cuts, dissections, distortions, and various other forms of deformation that are not present in the original data. The deformation is represented through iconic operators which are applied to a 3D dataset much like a texture is applied to a polygonal model. By using inverse rendering and correct normal calculation of the newly created surfaces, high-quality illustration-like images can be achieved at interactive speeds. This research is investigating, developing and validating a 3D interaction paradigm through illustrative deformation.