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Proceedings of CAD'14, 2014, 178-180
Shape Acquiring and Editing through an Augmented Reality-based CAD System

Pu Huang, Yong Chen, Yongqiang Li, University of Southern California
Charlie C. L. Wang, Chinese University of Hong Kong

Abstract. Most presently used Computer-aided Design (CAD) systems remain to be based on traditional interface such as monitor, mouse and keyboard. By using these interfaces, designers cannot freely explore shapes in three-dimensional (3D) space, which limits the designers’ creativity. The traditional interface is also difficult to use. For example, it is tedious and time consuming to edit a NURBs surface using a mouse or a keyboard by specifying the shape of its silhouette. There is a large number of research focusing on adopting AR techniques in CAD systems. Van Krevelen and Poelman provided a comprehensive survey of AR technologies, applications and limitations. In recent years, more research was conducted to adopt virtual and augmented reality (VR/AR) in Computer-aided Design. Some approaches such as advanced realism CAD environment (ARCADE) and Construct3D connect existing VR/AR framework to CAD core. Various approaches differentiate from each other by using different 3D input/output interfaces and targeted applications such as shape acquisition and design reviewing. Using similar CAD operations developed for traditional CAD systems, none of the systems adopt 3D physical objects in their system to provide users visual and physical guidance. In this research, shape exploration operations based on the AR integrated CAD system are discussed.

Keywords. Augmented reality, stereoscopic display, position tracking, curve fitting, dental appliance design

DOI: 10.14733/cadconfP.2014.178-180