Image Interpolation Exploiting Phase Diversity

Author

Lettsome, Clyde A. ; Smith, Mark J T

Author_Institution

Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA

fYear

2009

fDate

4-7 Jan. 2009

Firstpage

96

Lastpage

100

Abstract

In this paper we present an analysis-synthesis system with adaptive synthesis filters. The general formulation can be employed for image compression applications, but can also be used for image size enlargement. The synthesis section is constructed to contain a multiplicity of outputs with different phase characteristics. By exploiting phase diversity in synthesis, improvement in both PSNR and subjective interpolation quality are possible relative to conventional bilinear and bicubic interpolation methods.

Keywords

adaptive filters; data compression; image coding; interpolation; adaptive synthesis filters; analysis-synthesis system; bicubic interpolation methods; bilinear interpolation methods; image interpolation; image size enlargement; phase diversity; Adaptive filters; Adaptive systems; Filter bank; Finite impulse response filter; Frequency; Image analysis; Image reconstruction; Interpolation; Nonlinear filters; Speech synthesis;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Signal Processing Workshop and 5th IEEE Signal Processing Education Workshop, 2009. DSP/SPE 2009. IEEE 13th

Conference_Location

Marco Island, FL

Print_ISBN

978-1-4244-3677-4

Electronic_ISBN

978-1-4244-3677-4

Type

conf

DOI

10.1109/DSP.2009.4785902

Filename

4785902