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Nonlinear image restoration
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090682.pdf
Date
1999
Author
Balçıklı, Öner
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https://hdl.handle.net/11511/2799
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Graduate School of Natural and Applied Sciences, Thesis
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Nonlinear image restoration
Ungan, Cahit Uğur; Demirbaş, Kerim; Department of Electrical and Electronics Engineering (2005)
This thesis analyzes the process of deblurring of degraded images generated by space-variant nonlinear image systems with Gaussian observation noise. The restoration of blurred images is performed by using two methods; a modified version of the Optimum Decoding Based Smoothing Algorithm and the Bootstrap Filter Algorithm which is a version of Particle Filtering methods. A computer software called MATLAB is used for performing the simulations of image estimation. The results of some simulations for various o...
Nonlinear Laser Lithography for Photonic Texturing of Si Solar Cells
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Nowadays Si-based solar cell (SC) remains the main source of solar energy in the world due to low cost of material and relatively simple, industrially acceptable technology. Despite of significant progress on increasing efficiency of these devices (the best laboratory samples demonstrated efficiency as much as 43.5%), for most of industrially manufactured SC’s the efficiency remains in the range of 10–18% [1]. A promising way to minimize thermodynamic losses for high efficiency Si-based photovoltaic devices...
Nonlinear laser lithography to control surface properties of stainless steel
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In the present work a novel method to improve the surface properties of stainless steel is presented and discussed. The method, based on the use of a high repetition rate femtosecond Yb fibre laser, permits generation of highly reproducible, robust, uniform and periodic nanoscale structures over a large surface area. The technique is characterized by high productivity, which, in its most simple form, does not require special environmental conditioning. Surface morphology is scrutinized through SEM and AFM a...
Nonlinear image restoration.
Aykır, Tayfun; Demirbaş, Kerim; Department of Electrical and Electronics Engineering (2002)
Nonlinear laser lithography for photonic design of si solar cells
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Nowadays Si-based solar cell (SC) remains the main source of solar energy in the world due to low cost of material and relatively simple, industrially acceptable technology. Despite of significant progress on increasing efficiency of these devices (the best laboratory samples demonstrated efficiency as much as 43.5%), for most of industrially manufactured SC’s the efficiency remains in the range of 10–18% [1]. A promising way to minimize thermodynamic losses for high efficiency Si-based photovoltaic devices...
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Ö. Balçıklı, “Nonlinear image restoration,” Middle East Technical University, 1999.