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Received:April 29, 2010 Revised:May 20, 2010
Received:April 29, 2010 Revised:May 20, 2010
中文摘要: GPU 的可编程性和并行计算能力的飞速发展为可视化提供了新的解决途径。基于支持CUDA 的GPU,利用光线投射,实现了一个可以对体数据进行交互式可视化的工具,包括阻光度融合、等值面绘制、MIP 绘制以及X 光线投影等多种绘制效果,并加入了Phong 光照模型以提高阻光度融合和等值面绘制的图像质量。实验表明,该工具较好的利用了GPU 的并行计算能力,能够绘制出较高质量的图像,并具有良好的可交互性和可扩展性。
中文关键词: CUDA 可视化 光线投射 Phong 光照模型
Abstract:The fast development of the Graphics Processing Unit’s programmability and parallel computing power provides new solutions for visualization technology. Using ray-casting, a CUDA based interactive volume rendering tool is realized. Several rendering effects have been implemented, including alpha blending, iso-surface rendering, maximum intensity projection and X-ray projection. In order to improve alpha blending and iso-surface rendering effect, a per-pixel based Phong Lighting Model is added in. The experimental results show that the tool can make use of GPU's parallel computing capability and render high quality image. It’s interactive and extensible.
keywords: CUDA visualization ray-casting phong lighting model
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基金项目:基金项目:中国科学院知识创新工程重大项目(KGGX1-YW-13);财政部国家重大科研装备研制项目(ZDYZ2008-2)
引用文本:
叶良,单桂华,刘俊,迟学斌.基于CUDA 的体数据可视化工具.计算机系统应用,2011,20(1):185-187
YE Liang,SHAN Gui-Hua,LIU Jun,CHI Xue-Bin.CUDA-Based Volume Data Visualization Tool.COMPUTER SYSTEMS APPLICATIONS,2011,20(1):185-187
叶良,单桂华,刘俊,迟学斌.基于CUDA 的体数据可视化工具.计算机系统应用,2011,20(1):185-187
YE Liang,SHAN Gui-Hua,LIU Jun,CHI Xue-Bin.CUDA-Based Volume Data Visualization Tool.COMPUTER SYSTEMS APPLICATIONS,2011,20(1):185-187