Multispectra method for error reduction of the quantized Fourier modulus in the iterative Fourier transform algorithms used for phase retrieval

作     者：Yang, SY Takajo, H 

作者机构：Kyushu Inst Technol Dept Elect Engn Kitakyushu Fukuoka 8048550 Japan 

出 版 物：《OPTICAL ENGINEERING》 (光学工程)

年 卷 期：2004年第43卷第3期

页      面：713-717页

核心收录：

学科分类：08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 081102[工学-检测技术与自动化装置] 0811[工学-控制科学与工程] 0702[理学-物理学] 

主　　题：iterative Fourier transform algorithm phase retrieval Fourier modulus Fourier intensity quantization error reduction algorithm hybrid input-out algorithm 

摘      要：A multispectra method is proposed for the error reduction of the quantized Fourier modulus in the iterative Fourier transform. algorithms used for phase retrieval. The Fourier modulus is usually obtained by measuring the Fourier intensity with a digital device, thus the quantization error caused in the measurements of Fourier intensity leads to the error of the reconstructed object when iterative Fourier transform algorithms are used. The idea of the multispectra method uses several Fourier intensity distributions for various measuring ranges to generate a Fourier intensity distribution with low-quantization error. The error reduction of Fourier intensity with the multispectra method connects to the improvement of the phase retrieval with the iterative Fourier transform algorithms. Simulations are performed to demonstrate the effect of the multispectra method for phase retrieval with the iterative hybrid input-output algorithm. (C) 2004 Society of Photo-Optical Instrumentation Engineers.