基于3D Widgets三维交互快速拾取算法研究

Three-dimensional Interactive Quick Pick Algorithm Based on 3D Widgets

为解决图形、图像在三维交互及深度[10]信息处理过程中所存在的问题，提出了一种以3D Widgets为核心的三维交互框架，并研究了三维交互拾取的多种算法。基于3D Widget[4]的拾取技术能提供给用户交互旋转和交互拾取的功能。实验结果表明，该算法与已有的算法相比，将这些算法其应用在手术模拟三维交互系统中，可以提高用户使用的直观性，还有益于以后的功能扩展。为后续的交互过程奠定基础。本文的创新之处正是在此理论的基础上，将其应用在三维交互中具有重要的价值和意义。

To solve the problem existed in the process of tri-dimensional interactive and deep information processing with graphics and image, this paper bring forward a tri-dimensional interactive frame whose core is 3D Widgets.At the same time,several algorithms of the tri-dimensional interactive pick-up were researched. The pick-up technology based on 3D Widget can provide the functions of interactive circumrotate and interactive pick-up for users.The experiment result indicated that when contrasted with the existed algorithm and was applied in the system of operation simulation tri-dimensional interactive,the algorithm will advance the audio-visual quality for users and is availed for the further functions expanding.It will lay the foundation for the later interactive process. The innovation of this paper is applying it in the tri-dimensional interactive with the basic of this theory, and which is of important value and meaning.