Title :
A space-variant cubic-spline interpolation
Author :
Jianxing Jiang ; Shaohua Hong ; Lin Wang
Author_Institution :
Dept. of Commun. Eng., Xiamen Univ., Xiamen, China
Abstract :
In this paper, a space-variant cubic-spline interpolation (CSI) scheme by the use of the warped distance is developed to improve the performance. Furthermore, a modified overlap-save sub-image method is introduced to solve the boundary condition problems that occur between two neighboring subimages in the actual image. Experimental results show that the proposed improved CSI scheme can actually achieve a better PSNR than the existing interpolation algorithms including the original CSI scheme.
Keywords :
data compression; image coding; interpolation; splines (mathematics); CSI scheme; boundary condition problem; modified overlap-save subimage method; neighboring subimages; space-variant cubic-spline interpolation scheme; warped distance; Abstracts; Boats; Image coding; Image reconstruction; Lakes; Radio access networks; Space-variant; cubic-spline interpolation; warped distance;
Conference_Titel :
Signal Processing Conference (EUSIPCO), 2013 Proceedings of the 21st European
Conference_Location :
Marrakech
