| 电容层析成像图像重建的不适定性及其改进 |
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| 引用本文： | 史志才.电容层析成像图像重建的不适定性及其改进[J].计算机工程与应用,2002,38(15):25-26,51. |
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| 作者姓名： | 史志才 |
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| 作者单位： | 大连大学信息工程学院,大连,116622 |
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| 基金项目： | 国家自然科学基金重大项目(编号:59995460-5)，大连大学博士启动基金资助 |
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| 摘 要： | 电容层析成像图像重建是一个不适定的反问题求解过程,具有初值敏感性,难以重建其稳定的管截面图像。该文通过奇异值分解分析了成像系统产生不适定性的原因,提出了一种光滑性约束下的最小二乘图像重建算法,有效克服了图像重建过程中的不适定性,获得了稳定的管截面图像。
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| 关 键 词： | 电容层析成像 图像重建 不适定性 |
| 文章编号： | 1002-8331-(2002)15-0025-02 |
The Ill posed Characteristics and its Improvement for Electrical Capacitance Tomographic Image Reconstruction |
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| Shi,Zhicai.The Ill posed Characteristics and its Improvement for Electrical Capacitance Tomographic Image Reconstruction[J].Computer Engineering and Applications,2002,38(15):25-26,51. |
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| Authors: | Shi Zhicai |
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| Abstract: | Electrical capacitance tomographic image reconstruction is an ill_posed inverse problem and it is sensitive to the initial conditions.So it is difficult to reconstruct stable cross -section images.By means of the decomposition of singular value,the ill-posed reason of the imaging system is analyzed.The least square image reconstruction algorithm based on smoothing constraint is presented so as to overcome the ill-posed problem of image reconstruction,so that stable cross-sectional images can be reconstructed. |
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| Keywords: | Capacitance tomography Image reconstruction ill-posed characteristic |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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