Title :
An Improved Interpolation Scheme for Quincunx-Subsampled Images
Author :
Zhang, Yang ; Shi, Yunhui ; Yin, Baocai ; Liu, Xiaobo
Author_Institution :
Coll. of Comput. Sci. & Technol., Beijing Univ. of Technol.
Abstract :
We propose an improved interpolation scheme for quincunx-subsampled images. Firstly, Gabor filters are used to analyze the texture orientation of each pixel in the quincunx-subsampled image. Secondly, bases on reproducing kernel space W2 2 (R) and W2 2 (R) times W2 2 (R) are applied for interpolation. Finally, a procedure is developed to reconstruct the missing pixels based on the above two steps. Experiments show that our scheme is better than the existing schemes, especially in objective term. Furthermore, applying it to the system of multiple description image coding with quincunx segmentation can improve the performance of that system
Keywords :
Gabor filters; filtering theory; image coding; image reconstruction; image sampling; image segmentation; image texture; interpolation; Gabor filters; image coding; interpolation scheme; kernel space; pixel reconstruction; quincunx segmentation; quincunx-subsampled images; texture orientation; Gabor filters; Image analysis; Image coding; Image reconstruction; Image segmentation; Image texture analysis; Interpolation; Kernel; Pixel; Space technology;
Conference_Titel :
Signal Processing, 2006 8th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-9736-3
Electronic_ISBN :
0-7803-9736-3
DOI :
10.1109/ICOSP.2006.345594
