| 改进的三维可视化用光线投射算法 |
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| 引用本文： | 姜慧研,李宁.改进的三维可视化用光线投射算法[J].中国体视学与图像分析,2008,13(1):21-23. |
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| 作者姓名： | 姜慧研 李宁 |
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| 作者单位： | 东北大学,计算中心,沈阳,110004 |
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| 摘 要： | 把图像处理、光线投射与包围体技术有机结合，提出了一种提高成像质量和速度的三维可视化新方法。该方法利用物体空间的包围体算法来减少追踪光线的数量，加快了绘制速度。通过实际的医学胸部CT图像的三维重建实验，取得了较好的三维显示效果和速度，验证了改进的光线投射算法对胸部CT图像的快速三维可视化问题的有效性。
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| 关 键 词： | 光线投射算法 包围体算法 可视化 三维重建 胸部CT图像 |
| 文章编号： | 1007-1482(2008)01-0021-03 |
| 修稿时间： | 2007年5月1日 |
Improved 3D visualization using ray casting method |
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| JIANG Huiyan,LI Ning.Improved 3D visualization using ray casting method[J].Chinese Journal of Stereology and Image Analysis,2008,13(1):21-23. |
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| Authors: | JIANG Huiyan LI Ning |
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| Institution: | (Computing Center, Northeastern University, Shenyang 110004, China) |
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| Abstract: | A novel method for 3D visualization with improved image quality and speed has been developed by closely combined use of image processing, ray casting and bounding box technology. The method applied space objects bounding box tracking algorithm to reduce the amount of light, and improved ray casting algorithm to speed up the rendering speed. Good performance speed and 3D display were achieved by a three-dimensional reconstruction experiment with real medical chest CT images, and the effectiveness of the improved lighting projection algorithm for rapid 3D visualization of the chest CT images was confirmed. |
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| Keywords: | Ray casting visualization 3D reconstruction Chest CT image |
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