DocumentCode :
2311275
Title :
Super Resolution Blind Reconstruction of Low Resolution Images Using Framelets Based Fusion
Author :
Bhushan, D. Bharath ; Sowmya, V. ; Soman, K.P.
Author_Institution :
CEN, Amrita Vishwa Vidyapeetham, Coimbatore, India
fYear :
2010
fDate :
12-13 March 2010
Firstpage :
100
Lastpage :
104
Abstract :
In this paper, we propose a fusion technique based on framelets to obtain super resolution image from sub-pixel shifted, noisy, blurred low resolution images. This method has high advantages over all existing methods. A Tight frame filter bank provides symmetry and has a redundancy that allows for approximate shift invariance which leads to clear edges, high spatial information with effective denoising which was lacked in critically sampled discrete wavelet transform. They are also shorter and results in smoother scaling and wavelet functions. The reconstructed super resolution image obtained by this technique has high peak signal to noise ratio (PSNR) and low mean square error (MSE) than that obtained by wavelet based fusion method, which is evident through the experimental results.
Keywords :
blind source separation; channel bank filters; image reconstruction; image resolution; mean square error methods; approximate shift invariance; critically sampled discrete wavelet transform; effective denoising; framelets based fusion; noisy blurred low resolution images; reconstructed super resolution image; sub-pixel shifted images; super resolution blind reconstruction; tight frame filter bank; wavelet based fusion method; wavelet functions; Discrete wavelet transforms; Filter bank; Image reconstruction; Image resolution; Mean square error methods; Noise reduction; PSNR; Redundancy; Signal resolution; Spatial resolution; Framelets; Fusion; Super resolution; Tight Frame;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Recent Trends in Information, Telecommunication and Computing (ITC), 2010 International Conference on
Conference_Location :
Kochi, Kerala
Print_ISBN :
978-1-4244-5956-8
Type :
conf
DOI :
10.1109/ITC.2010.92
Filename :
5460604
Link To Document :
بازگشت