کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
848783 | 909251 | 2011 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phase retrieval using the transport of intensity equation solved by the FMG-CG method
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Phase retrieval using the transport of intensity equation solved by the FMG-CG method Phase retrieval using the transport of intensity equation solved by the FMG-CG method](/preview/png/848783.png)
چکیده انگلیسی
The relationship between the object-plane phase and the intensity distribution in the Fresnel region can be described by the transport of intensity equation (TIE). The phase distribution can thus be uniquely determined by solving TIE. In this study, a full multigrid preconditioned conjugate gradient (FMG-CG) method is proposed to numerically solve the TIE for phase retrieval. The full multigrid method is a scalable algorithm, and can be parallelized readily and efficiently. By using this method as a preconditioner of the preconditioned conjugate gradient (PCG) method, fast convergence is obtained. The simulation experiments show that complicated phase distributions with fast convergence speed can be retrieved by this composite method.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 122, Issue 23, December 2011, Pages 2101-2106
Journal: Optik - International Journal for Light and Electron Optics - Volume 122, Issue 23, December 2011, Pages 2101-2106
نویسندگان
Bindang Xue, Shiling Zheng,