| 基于图像分割的双能CT不完备数据重建算法优化研究 |
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| 引用本文： | 刘圆圆,程建平,张丽,郑鹏,陈志强.基于图像分割的双能CT不完备数据重建算法优化研究[J].CT理论与应用研究,2013(4):579-586. |
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| 作者姓名： | 刘圆圆 程建平 张丽 郑鹏 陈志强 |
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| 作者单位： | [1]环境保护部核与辐射安全中心,北京100082 [2]清华大学工程物理系,北京100084 [3]粒子技术与辐射成像教育部重点实验室（清华大学）,北京100084 |
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| 基金项目： | 国家自然科学基金青年科学基金（11305073）. |
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| 摘 要： | 本文针对基于图像分割的双能CT不完备数据重建算法，提出了图像分割过程和方程组求解环节是优化算法的两个关键点，同时给出了初步优化方法。初步实验结果表明这两方面因素选取的优劣将直接影响重建图像质量。因此，根据实际应用需求，如能改善这两方面因素，基于图像分割的双能CT不完备数据重建算法的重建性能将会进一步提高。
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| 关 键 词： | 双能CT 图像分割 不完备数据 优化 |
Improvement on Dual Energy CT Reconstruction Algorithm from Incomplete Data Based on Image Segmentation |
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| LIU Yuan-yuanl CHENG Jian-ping,＇,ZHANG Li,＇,ZHENG Peng,CHEN Zhi-qiang.Improvement on Dual Energy CT Reconstruction Algorithm from Incomplete Data Based on Image Segmentation[J].Computerized Tomography Theory and Applications,2013(4):579-586. |
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| Authors: | LIU Yuan-yuanl CHENG Jian-ping ＇ ZHANG Li ＇ ZHENG Peng CHEN Zhi-qiang |
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| Institution: | 2＇ 3 1. Nuclear and Radiation Safety Center, Ministry of Environmental Protection of E R. China, Beijing 100082, China 2. Department of Engineering Physics, Tsinghua University, Beijing 100084, China 3. Key Laboratory of Particle ＆Radiation Imaging of Ministry of Education (Tsinghua University), Beijing 100084, China |
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| Abstract: | Aimed at dual energy CT reconstruction algorithm from incomplete data based on image segmentation, this paper proposed two key points to improve this algorithm, the processes of image segmentation and solving the equations. The primary results demonstrate that these two elements greatly affect the quality of reconstructions. Hence, depending on the application requirements, if we can optimize these two key points, a more robust dual energy CT reconstruction algorithm from incomplete data based on image segmentation would be obtained. |
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| Keywords: | dual energy CT image segmentation incomplete data improvement |
| 本文献已被 CNKI 维普 等数据库收录！ |
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