当投影数据不完整时透射断层扫描的图像重建。
Image reconstruction for transmission tomography when projection data are incomplete.
作者信息
Snyder Donald L, O'Sullivan Joseph A, Murphy Ryan J, Politte David G, Whiting Bruce R, Williamson Jeffrey F
机构信息
Washington University, St Louis, MO, USA.
出版信息
Phys Med Biol. 2006 Nov 7;51(21):5603-19. doi: 10.1088/0031-9155/51/21/015. Epub 2006 Oct 16.
PMID:17047273
Abstract
Two iterative methods are developed for forming a maximum-likelihood estimate of the attenuation density in a patient or object for transmission tomography when projection data are incomplete. The methods converge monotonically to the same limit points. Results of testing the methods with both simulated and real data are given.
摘要
当投影数据不完整时，开发了两种迭代方法来形成患者或物体中衰减密度的最大似然估计，用于透射断层扫描。这些方法单调收敛到相同的极限点。给出了用模拟数据和实际数据测试这些方法的结果。
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