DocumentCode :
2645122
Title :
A Robust Iterative Multiframe Super-Resolution Reconstruction using a Huber Bayesian Approach with Huber-Tikhonov Regularization
Author :
Patanavijit, Vorapoj ; Jitapunkul, Somchai
Author_Institution :
Dept. of Electr. Eng., Assumption Univ., Bangkok
fYear :
2006
fDate :
12-15 Dec. 2006
Firstpage :
13
Lastpage :
16
Abstract :
The traditional SRR (super-resolution reconstruction) estimations are based on L1 or L2 statistical norm estimation therefore these SRR methods are usually very sensitive to their assumed model of data and noise that limits their utility. This paper reviews some of these SRR methods and addresses their shortcomings. We propose a novel SRR approach based on the stochastic regularization technique of Bayesian MAP estimation by minimizing a cost function. The Huber norm is used for measuring the difference between the projected estimate of the high-resolution image and each low resolution image, removing outliers in the data and Tikhonov and Huber-Tikhonov regularization are used to remove artifacts from the final answer and improve the rate of convergence. The experimental results confirm the effectiveness of our methods and demonstrate its superiority to other super-resolution methods based on L1 and L2 norm for several noise models such as noiseless, AWGN, Poisson and salt & pepper noise
Keywords :
AWGN; image reconstruction; image resolution; iterative methods; AWGN noise; Bayesian MAP estimation; Huber Bayesian approach; Huber-Tikhonov regularization; L1 statistical norm estimation; L2 statistical norm estimation; Poisson noise; cost function; robust iterative multiframe super-resolution reconstruction estimation; salt & pepper noise; stochastic regularization technique; Additive white noise; Bayesian methods; Convergence; Cost function; Gaussian noise; Image reconstruction; Image resolution; Iterative methods; Noise robustness; Stochastic resonance;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Intelligent Signal Processing and Communications, 2006. ISPACS '06. International Symposium on
Conference_Location :
Yonago
Print_ISBN :
0-7803-9732-0
Electronic_ISBN :
0-7803-9733-9
Type :
conf
DOI :
10.1109/ISPACS.2006.364825
Filename :
4212212
Link To Document :
بازگشت