Automatic Compensation of Total Phase Aberrations in Digital Holographic Biological Imaging  

作　　者：ZHANG Yi-Zhuo WANG Da-Yong WANG Yun-Xin TAO Shi-Quan 张亦卓;王大勇;王云新;陶世荃(College of Applied Sciences,Beijing University of Technology,Beijing 100124;Institute of Information Photonics Technology,Beijing University of Technology,Beijing 100124)

机构地区：[1]College of Applied Sciences,Beijing University of Technology,Beijing 100124 [2]Institute of Information Photonics Technology,Beijing University of Technology,Beijing 100124

出　　处：《Chinese Physics Letters》2011年第11期131-134,共4页中国物理快报（英文版）

基　　金：by the National Natural Science Foundation of China under Grant No 61077004;the Science Foundation of Education Commission of Beijing under Grant No KZ200910005001;Innovative Talent and Team Development for Serving Beijing.

摘　　要：Digital holographic microscopy has been a powerful metrological technique for phase-contrast imaging.However inherent phase aberrations always exist and degrade the quality of the phase-contrast images.A surface fitting method based on an improved mathematic model is proposed,which can be used to remove the phase aberrations without any pre-knowledge of the setup or manual operation.The improved mathematic model includes not only the usual terms but also the cross terms and the high order terms to describe the phase aberrations with high accuracy.Meanwhile,a non-iterative algorithm is used to solve the parametersand thus less computational load is imposed.The proposed method is applied to the live imaging of cells.The experimental results verify its validity.

关 键 词：REMOVE HOLOGRAPHIC verify 

分 类 号：O43[机械工程—光学工程]