计算机应用

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基于标准PC机的大数据实时体绘制算法研究究

谢凯 杨杰 朱跃敏   

  1. 湖南大学 上海交通大学 法国国家科学研究中心
  • 收稿日期:2006-11-08 修回日期:2007-01-11 发布日期:2007-05-01 出版日期:2007-05-01
  • 通讯作者: 谢凯

Real-time volume rendering of large datasets on standard PC hardware

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  • Received:2006-11-08 Revised:2007-01-11 Online:2007-05-01 Published:2007-05-01
  • Contact: Kai Xie

摘要: 为了解决在标准PC机上对大数据进行实时体绘制的问题,提出了一种基于图形处理器的大数据高质量体绘制算法。该算法采用三维纹理映射作为核心的绘制算法,结合可见性测试、遮挡测试和模板测试来加快绘制速度。实验结果表明,对虚拟人体数据,可以在不损失图像质量的前提下,以可交互的速度进行绘制。

关键词: 体绘制, 三维纹理映射, 图形处理器

Abstract: A high quality volume rendering technique was presented to render a large volume dataset at interactive rates on standard PC hardware. We employed 3D texture mapping as a core rendering engine and took advantage of combinations of HW-supported visibility tests such as occlusion queries, stencil tests and programmable shaders to accelerate the whole rendering process. We have implemented the volume rendering algorithm for large volume data, and achieved real-time performance without any loss of image quality.

Key words: Volume rendering, 3D-Texture map, Graphics processing units