Naslov
Comparative Analysis of Interpolation Methods for Bilateral Asymmetry

Autori
Božek, Jelena ; Grgić, Mislav ; Delač, Krešimir

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 52nd International Symposium ELMAR-2010 / Grgić, Mislav ; Božek, Jelena ; Grgić, Sonja - Zagreb : Hrvatsko društvo Elektronika u pomorstvu (ELMAR), 2010, 1-7

ISBN
978-953-7044-11-4

Skup
International Symposium ELMAR

Mjesto i datum
Zadar, Hrvatska, 15.09.2010. - 17.09.2010

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Mammographic Images; Bilateral Asymmetry; Interpolation Methods; Breast Alignment

Sažetak
First step in bilateral asymmetry detection in mammographic image analysis is alignment of the left and right breast. Alignment may help radiologists in their search for signs of bilateral asymmetry as well as in comparison of corresponding regions in breasts with a computer aided detection system. Different interpolation methods may be used for breast alignment. We have compared nearest neighbor interpolation, bilinear interpolation, B-spline interpolation, cubic interpolation, cubic Schaum interpolation and o-Moms interpolation and their impact on mammographic images. We evaluated interpolation quality using mathematical similarity measures such as normalized 2-D cross-correlation coefficient, peak signal to noise ratio (PSNR) and structural similarity measure (SSIM). Normalized 2-D cross-correlation coefficient and SSIM have shown best results for B-spline interpolation while PSNR measure has shown best results for nearest neighbor interpolation. According to all three used measures the worst interpolation quality has cubic interpolation with kernel size of 8 x 8.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Računarstvo

POVEZANOST RADA