Image Interpolation by a Coupling Partial Differential Equation

Author

Tao, Hai ; Xi Zhihong ; Xiao Yihan

Author_Institution

Inf. & Commun. Eng. Coll., Harbin Eng. Univ., Nanyang, China

fYear

2011

fDate

30-31 July 2011

Firstpage

1

Lastpage

4

Abstract

In this paper, a nonlinear model for the interpolation of images using partial differential equation (PDE) is proposed. The proposed algorithm couples the Total Variational (TV) filter with a fourth-order PDE filter to approximate to a high order fractional derivatives variational model. The derived method efficiently reconstructs the real image structures, leading to a natural interpolation, with reduced blurring, staircase and ringing artifacts of classic methods. Experiment results show that the model has better effect in preserving textures and details than TV model.

Keywords

image restoration; interpolation; partial differential equations; blurring reduction; fourth-order partial differential equation filter; high order fractional derivatives variational model; image interpolation; image structure reconstruction; nonlinear model; partial differential equation coupling; ringing artifacts reduction; staircase artifacts reduction; total variational filter; Couplings; Image edge detection; Interpolation; Mathematical model; Partial differential equations; TV;

fLanguage

English

Publisher

ieee

Conference_Titel

Control, Automation and Systems Engineering (CASE), 2011 International Conference on

Conference_Location

Singapore

Print_ISBN

978-1-4577-0859-6

Type

conf

DOI

10.1109/ICCASE.2011.5997581

Filename

5997581