- About
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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 1 to 3 of 3 (0.071 seconds)Spelling suggestions: "subject:"voire patterns"" "subject:"noire patterns""
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Suppression of Moire Patterns in Digital HolographyLi, Peiyun January 2015 (has links)
No description available.
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| 2 |
Analysis and Reduction of Moire Patterns in Scanned Halftone PicturesLiu, Xiangdong 01 May 1996 (has links)
In this dissertation we provide a comprehensive theory for the formation of a moire pattern in a sampled halftone image. We explore techniques for restoring a sampled halftone image with a moire pattern and techniques for preventing a moire pattern when a halftone picture is scanned. Specifically, we study the frequency, phase, and spatial geometry of a moire pattern. We observe and explain the half period phase reversal phenomenon that a moire pattern may exhibit. As a case study, we examine the moire patterns generated by a commercial scanner. We propose three restoration methods, including a notch filtering method, a simulation method, and a relaxation method. We also describe a moire prevention method, the partial inverse Fourier transform method. Finally, we propose a research agenda for further investigation. / Ph. D.
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| 3 |
Deformation of a Graphene Sheet Driven by Lattice Mismatch with a Supporting SubstrateStanek, Lucas James 20 November 2018 (has links)
No description available.
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