Evaluation of finite difference and FFT-based solutions of the transport of intensity equation

被引:9
|
作者
Zhang, Hongbo [1 ]
Zhou, Wen-Jing [2 ]
Liu, Ying [3 ]
Leber, Donald [1 ]
Banerjee, Partha [4 ,5 ]
Basunia, Mahmudunnabi [5 ]
Poon, Ting-Chung [1 ]
机构
[1] Virginia Tech, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24061 USA
[2] Shanghai Univ, Dept Precis Mech Engn, Shanghai 200072, Peoples R China
[3] Virginia Tech, Dept Mech Engn, Blacksburg, VA 24061 USA
[4] Univ Dayton, Dept Electroopt & Photon, Dayton, OH 45469 USA
[5] Univ Dayton, Dept Elect & Comp Engn, Dayton, OH 45469 USA
基金
中国国家自然科学基金;
关键词
PHASE RETRIEVAL; TRANSFORM; ALGORITHMS; IMAGES;
D O I
10.1364/AO.57.00A222
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A finite difference method is proposed for solving the transport of intensity equation. Simulation results show that although slower than fast Fourier transform (FFT)-based methods, finite difference methods are able to reconstruct the phase with better accuracy due to relaxed assumptions for solving the transport of intensity equation relative to FFT methods. Finite difference methods are also more flexible than FFT methods in dealing with different boundary conditions. (C) 2017 Optical Society of America
引用
收藏
页码:A222 / A228
页数:7
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