DocumentCode
900461
Title
Adaptive image interpolation based on local gradient features
Author
Hwang, Jung Woo ; Lee, Hwang Soo
Author_Institution
Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., South Korea
Volume
11
Issue
3
fYear
2004
fDate
3/1/2004 12:00:00 AM
Firstpage
359
Lastpage
362
Abstract
This letter presents two adaptive interpolation methods based on applying an inverse gradient to conventional bilinear and bicubic interpolation. In simulations, the proposed methods exhibited a better performance than conventional bilinear and bicubic methods, particularly in the edge regions. In addition, the proposed methods can be used irrespective of the magnification factor (MF) and easily implemented due to their simple structure.
Keywords
adaptive signal processing; gradient methods; image enhancement; image reconstruction; interpolation; adaptive image interpolation; image enhancement; image reconstruction; local gradient features; magnification factor; Digital images; Image reconstruction; Image resolution; Interpolation; Laplace equations; Nearest neighbor searches; PSNR; Pixel; Signal resolution; Two dimensional displays;
fLanguage
English
Journal_Title
Signal Processing Letters, IEEE
Publisher
ieee
ISSN
1070-9908
Type
jour
DOI
10.1109/LSP.2003.821718
Filename
1268029
Link To Document