NDLTD Global ETD Search
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  • About
  • 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 (0.124 seconds)

Spelling suggestions: "subject:"total generalized covariation"" "subject:"total generalized byvariation""

1

Building Boundary Sharpening In The Digital Surface Model Using Orthophoto

Gui, Xinyuan January 2019 (has links)
No description available.
Civil Engineering
matching-based DSM
mean-shift
top-hat
NDVI
KIPPI
graphcut
Total Generalized Variation
2

Rekonstrukce snímků z magnetické rezonance pomocí optimalizačních metod / Magnetic resonance imaging via optimization methods

Onderlička, Tomáš January 2018 (has links)
Magnetic resonance imaging is a diagnostic method to form images of the organs in the body. Long acquisition times are the main disadvantage, however it is possible to accelerate the data acquisition with the method of compressed sensing by sensing fewer samples and formulating an optimization method for image reconstruction. The aim of this thesis is to describe and compare the common optimization methods and to create a software capable of solving them. Another objective is to observe how much the data acquisition can be accelarated without the loss of image quality when dealing with real data. The most promising method in the experiment was total generalized variation (TGV) regularization which was able to reconstruct an image with a proper quality using only a quarter of the data.
3

Bregman Operator Splitting with Variable Stepsize for TotalGeneralized Variation Based Multi-Channel MRIReconstruction

Cowen, Benjamin E. 02 September 2015 (has links)
No description available.
Applied Mathematics
MRI
compressed sensing
partial parallel imaging
total generalized variation
total variation
regularity
inverse problems
signal processing
image reconstruction
applied mathematics

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