DocumentCode :
3312386
Title :
Spline-based resampling of noisy images
Author :
Gotchev, Atanas ; Egiazarian, Karen
Author_Institution :
Signal Process. Lab., Tampere Univ. of Technol., Finland
fYear :
2001
fDate :
2001
Firstpage :
580
Lastpage :
585
Abstract :
We consider the problem of image resampling in the presence of noise in terms of a regularized solution for spline-like model coefficients. The properties of the generalized cross-validation (GCV) and the Akaike information criterion (AIC) for determination of the time number of the model coefficients and the value of the regularization parameter have been examined. A two-parameter optimization procedure can be applicable in the case of noisy resampling. The method is applicable when the image should be resampled and denoised at the same time. The problem is somehow related to the problem of finding the natural scale of representation, when one aims to find the image scale optimum for further processing (compression, denoising, etc.). The practical realization of the method is discussed as well
Keywords :
image representation; image resolution; image sampling; optimisation; splines (mathematics); AIC; Akaike information criterion; GCV; generalized cross-validation; image representation; image scale optimum; noisy images; regularized solution; spline-based resampling; spline-like model coefficients; two-parameter optimization; Biomedical signal processing; Image coding; Image denoising; Interpolation; Laboratories; Noise reduction; Polynomials; Spline; Wavelet domain; Wavelet transforms;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Image and Signal Processing and Analysis, 2001. ISPA 2001. Proceedings of the 2nd International Symposium on
Conference_Location :
Pula
Print_ISBN :
953-96769-4-0
Type :
conf
DOI :
10.1109/ISPA.2001.938695
Filename :
938695
Link To Document :
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