| 基于DSP的PET图像重建方法 |
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| 引用本文： | 曾启明,李琰,纪震.基于DSP的PET图像重建方法[J].数据采集与处理,2013,28(5):633-637. |
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| 作者姓名： | 曾启明 李琰 纪震 |
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| 作者单位： | 深圳大学信息工程学院,计算机与软件学院,计算机与软件学院 |
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| 基金项目： | 国家自然科学基金( 60901016 )资助项目；广东省自然科学基金(10151806001000016 )资助项目。 |
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| 摘 要： | 以美国德州仪器公司的高性能数字信号处理器TMS320C6455为核心，在低成本DSP（Digital Signal Processor）平台上优化并实现了一种基于滤波反投影的PET（Positron Emission Tomography）图像重建算法FBP （Filtered Back Projection）。实验结果表明，通过针对性的算法和代码优化，系统能够在40秒内完成512×512分辨率PET图像的重建，并获得满足应用需要的图像清晰度。基于DSP平台的PET图像重建方法在PET医学图像重建及其他医学成像领域具有良好的应用前景。
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| 关 键 词： | 图像重建，正电子发射断层扫描，数字信号处理器，滤波反投影 |
| 收稿时间： | 2012/10/9 0:00:00 |
| 修稿时间： | 2013/6/13 0:00:00 |
A PET Image Reconstruction Method based on DSP |
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| Zeng Qiming,Li Yan and.A PET Image Reconstruction Method based on DSP[J].Journal of Data Acquisition & Processing,2013,28(5):633-637. |
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| Authors: | Zeng Qiming Li Yan and |
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| Affiliation: | College of Information Engineering, Shenzhen University,College of Computer and Software Engineering,Shenzhen University, |
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| Abstract: | TMS320C6455 is a high performance digital signal processor (DSP) provided by Texas Instruments Corporation of USA. By using the low-cost C6455 chip as the core processor, a filtered back projection (FBP) based positron emission tomography (PET) image reconstruction algorithm is optimized and implemented in this paper. By specific effective optimization of algorithm and DSP code, the system can reconstruct a 512×512 PET image in 40 seconds, and achieve desirable image definition. The PET image reconstruction method based on DSP can be applied to the area of PET medicine image reconstruction and other related areas. |
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| Keywords: | image reconstruction positron emission tomography digital signal processor filter back projection |
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