Noise robust local phase coherence based method for image sharpness assesment (CROSBI ID 611428)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Seršić, Damir ; Sović, Ana
engleski
Noise robust local phase coherence based method for image sharpness assesment
Image sharpness assessment is a very important issue in image acquisition and processing. Novel approaches in noreference image sharpness assessment methods are based on local phase coherence (LPC), rather than edge or frequency content analysis. It has been shown that the LPC based methods are closer to human observer assessments. In this paper, we propose carefully time-domain designed complex wavelets that provide a good tool for the local phase estimation. Moreover, we take a special care of noise. We apply thresholding in the wavelet domain and merge several estimates to achieve statistical robustness in the presence of noise. A novel, more intuitive sharpness index is proposed, as well.
complex wavelet transform; local phase coherence; image sharpness assessment; image blur
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o prilogu
1-5.
2014.
objavljeno
Podaci o matičnoj publikaciji
Proceedings Eusipco 2014
Lisabon:
Podaci o skupu
22nd European Signal Processing Conference (EUSIPCO 2014)
predavanje
01.09.2014-05.09.2014
Lisabon, Portugal