Interpolated Mth band filters for image size conversion

Author

Yang, Seungjoon ; Nguyen, Truong Q.

Author_Institution

Digital Media R&D Center, Samsung Electron. Co., Ltd., Suwon City, South Korea

Volume

3

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

891

Abstract

Image/video size conversion at variable rates requires that a large set of interpolation filters should be stored in a table. We present the interpolated Mth band filters as the interpolation filters. The interpolated Mth band filters are obtained from the cubic spline interpolation of a prototype M_pth band eigenfilter. The proposed filter can be calculated in real time, eliminating the need for a large on-chip memory. Scaled images using the proposed filters show superb image quality

Keywords

channel bank filters; filtering theory; image resolution; image sampling; image sequences; interpolation; splines (mathematics); video signal processing; cubic spline interpolation; eigenfilter; image quality; image resolution; image size conversion; image/video size conversion; images sequences; interpolated Mth band filters; scaled images; variable rates; video sequences; Band pass filters; Cutoff frequency; Image converters; Image sampling; Interpolation; Low pass filters; Nonlinear filters; Prototypes; Sampling methods; Video sequences;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 2001. Proceedings. 2001 International Conference on

Conference_Location

Thessaloniki

Print_ISBN

0-7803-6725-1

Type

conf

DOI

10.1109/ICIP.2001.958267

Filename

958267