DocumentCode :
2679303
Title :
Andrew’s sine estimation for a robust iterative multiframe Super-Resolution Reconstruction using stochastic regularization technique
Author :
Patanavijit, Vorapoj
Author_Institution :
Dept. of Comput. & Network Eng., Assumption Univ., Bangkok
fYear :
2008
fDate :
22-25 June 2008
Firstpage :
145
Lastpage :
148
Abstract :
In these two decades, although there has been a great deal of research developing super-resolution reconstruction (SRR) algorithms and many such algorithms have been proposed, the almost SRR algorithms are based on L1 or L2 statistical norm estimation. Consequently, these SRR algorithms are typically very sensitive to their assumed noise model that limits their utility. This paper proposes a novel SRR algorithm based on the stochastic regularization technique of Bayesian MAP estimation by minimizing a cost function. The Andrewpsilas Sine norm is used for measuring the difference between the projected estimate of the high-resolution image and each low resolution image and for removing outliers in the data. Moreover Tikhonov regularization is used to remove artifacts from the final answer and improve the rate of convergence. Finally, the efficiency of the proposed algorithm is demonstrated here in a number of experimental results using Lena standard images and using a several noise models such as noiseless, AWGN, Poisson noise and salt & pepper noise.
Keywords :
Bayes methods; image reconstruction; image resolution; maximum likelihood estimation; stochastic processes; AWGN; Andrew sine estimation; Bayesian MAP estimation; Poisson noise; Tikhonov regularization; high-resolution image; noise models; robust iterative multiframe superresolution reconstruction; salt and pepper noise; statistical norm estimation; stochastic regularization technique; Additive white noise; Bayesian methods; Cost function; Gaussian noise; Image reconstruction; Image resolution; Iterative algorithms; Robustness; Stochastic processes; Stochastic resonance;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuits and Systems and TAISA Conference, 2008. NEWCAS-TAISA 2008. 2008 Joint 6th International IEEE Northeast Workshop on
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4244-2331-6
Electronic_ISBN :
978-1-4244-2332-3
Type :
conf
DOI :
10.1109/NEWCAS.2008.4606342
Filename :
4606342
Link To Document :
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