Experimental transport of intensity diffraction tomography
Name
765948950-MIT.pdf
Description
Full printable version
Size
9.47 MB
Format
Adobe PDF
Checksum (MD5)
220c2ab8095f3327bfe9c68f2ab7e032
Author(s)
Lee, Justin Wu
Advisor(s)
George Barbastathis.
Alternative Title
Experimental transport of IDT
Date Issued
2011
Publisher
Massachusetts Institute of Technology
Abstract
In this thesis, I perform intensity-based tomographic phase imaging in two ways. First, I utilize the paraxial transport of intensity equation (TIE) to construct phase maps of a phase object at multiple projection angles and reconstruct the object 3- dimensionally using basic tomographic principles. Then, I use an Intensity Diffraction Tomography (IDT) approach to improve the quality of reconstruction by accounting for diffraction effects under 1st order Rytov Approximation. I improve both approaches by applying compressive sensing techniques to estimate missing points in the undersampled data. Finally, I compare I-DT with single-shot, Gabor-type digital holography (also integrating use of compressive sensing principles) and discuss improvements and extensions of the presented implementation of IDT.
Description
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2011.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 89-98).
Subjects
Mechanical Engineering.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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