Improved frequency domain Super-Resolution algorithm with conjugate gradient - NUFFT method as its reconstruction core

Krzysztof Malczewski; Ryszard Stasiński

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Title

Improved frequency domain Super-Resolution algorithm with conjugate gradient - NUFFT method as its reconstruction core

Authors

Krzysztof Malczewski (WE) ^{[ 1 ][ P ]}
Ryszard Stasiński (WIiT) ^{[ 2 ][ P ]}

^{[ 1 ]} Instytut Elektroniki i Telekomunikacji (IEt), Wydział Elektryczny, Politechnika Poznańska | ^{[ 2 ]} Instytut Telekomunikacji Multimedialnej, Wydział Informatyki i Telekomunikacji, Politechnika Poznańska | ^{[ P ]} employee

Year of publication

2005

Chapter type

paper

Publication language

english

Abstract

EN In the paper frequency domain Super-Resolution algorithm with enhanced reconstruction stage is presented. The Fourier transform properties of relocated images are used to easy estimation of rotation and translation, as well as artifacts caused by subsampling. Previously, the bicubic interpolation has been employed in the reconstruction phase, in this paper it is replaced by iterative conjugate-gradient method with inverse nonuniform fast Fourier transform at its core. The new algorithm indeed gives improved results, if compared to those of the previous ones.

Pages (from - to)

1 - 4

URL

https://ieeexplore.ieee.org/document/7078189

Book

13th European Signal Processing Conference : EUSIPCO 2005

Presented on

13th European Signal Processing Conference EUSIPCO 2005, 4-8.09.2005, Antalya, Turkey

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