| GPU加速技术在医学三维可视化中的应用 |
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| 引用本文： | 王玉,王宏.GPU加速技术在医学三维可视化中的应用[J].吉林大学学报(工学版),2013(Z1):74-77. |
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| 作者姓名： | 王玉 王宏 |
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| 作者单位： | 东北大学中荷生物医学与信息工程学院;东北大学机械工程与自动化学院 |
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| 基金项目： | 国家自然科学基金资助项目(61071057) |
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| 摘 要： | 针对三维可视化体显示技术在医学影像领域应用时,在没有硬件加速的情况下几乎很难做到实时交互显示的效果问题。本文尝试了基于GPU架构进行并行计算的方法。同时利用MFC扩展动态库及导出类技术,避免了大量代码移植。在试验过程中,针对特定显卡,对GPU同时执行的线程数与计算时间做了统计分析,找到了计算时间最少的最优线程数。实验表明,本文提出的GPU加速方法,计算速度可以提高5～6倍。
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| 关 键 词： | 表面绘制 体绘制 光线投射 图像合成 |
Application of GPU speedup method in medical 3D visualization |
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| WANG Yu,WANG Hong.Application of GPU speedup method in medical 3D visualization[J].Journal of Jilin University:Eng and Technol Ed,2013(Z1):74-77. |
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| Authors: | WANG Yu WANG Hong |
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| Affiliation: | 1.School of Sino-Dutch Biomedical and Information Engineering,Northeastern University,Shenyang 110819,China;2.School of Mechanical Engineering and Automation,Northeastern University,Shenyang 110004,China) |
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| Abstract: | It is almost impossible to achieve interactive rendering rates on a PC without hardware speedup when 3D visualization display technology is used in the field of medical image.A parallel rendering method of computing with CUDA applied on a graphics card was proposed.The MFC DLL and export class technique was used to avoid a mass of code migrating work.The most efficient number of parallel threads was also determined by analyzing the result data.The experiment shows that the speed of volume rendering based on ray-casting is improved by about 5~6 times |
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| Keywords: | surface rendering volume rendering ray casting image synthesize |
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