| 一种心脏影像四维动态实时绘制方法 |
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| 引用本文： | 冯朝路,杨金柱,赵大哲,刘积仁.一种心脏影像四维动态实时绘制方法[J].东北大学学报(自然科学版),2011,32(1):18-21. |
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| 作者姓名： | 冯朝路 杨金柱 赵大哲 刘积仁 |
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| 作者单位： | 东北大学医学影像计算教育部重点实验室;东北大学信息科学与工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(61001047); 中央高校基本科研业务费专项资金资助项目(N100604015) |
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| 摘 要： | 借助心电图门控技术,多层螺旋CT(MDCT)可以采集心脏的跳动信息,但传统的体绘制方法不能满足心脏动态实时重建需求.提出一种采用心电图门控MDCT采集心脏多时相数据,基于图形处理器纹理映射的心脏动态4D实时绘制方法.该方法将采集到的数据、GPU计算获得的材质与光照属性和传输函数数据,分别映射到GPU纹理单元.片元程序实...
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| 关 键 词： | 多层螺旋CT 图形处理器 纹理映射 心电图 实时绘制 |
A 4-D Dynamic Real-Time Rendering Method for Cardiac Image |
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| FENG Chao-lu,YANG Jin-zhu,ZHAO Da-zhe,LIU Ji-ren.A 4-D Dynamic Real-Time Rendering Method for Cardiac Image[J].Journal of Northeastern University(Natural Science),2011,32(1):18-21. |
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| Authors: | FENG Chao-lu YANG Jin-zhu ZHAO Da-zhe LIU Ji-ren |
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| Institution: | FENG Chao-lu1,2,YANG Jin-zhu1,ZHAO Da-zhe1,LIU Ji-ren2(1.Key Laboratory of Medical Image Computing of Ministry of Education,Northeastern University,Shenyang 110819,China,2.School of Information Science & Engineering,China.) |
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| Abstract: | The heartbeat timeline information can be acquired by MDCT(multi-detector computed tomography) via ECG(electro-cardio-gram) gating process,but conventional CPU-based volume rendering methods cannot meet the requirement of dynamic cardiac real-time reconstruction.A GPU-based texture mapping method is therefore proposed to achieve it by introducing the ECG gating process with MDCT to acquire multi-groups cardiac volume data,where each of them is called a time-phased data and mapped onto a GPU texture unit ste... |
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| Keywords: | MDCT(multi-detector computed tomography) GPU texture mapping ECG(electro-cardio-gram) real-time rendering |
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