An edge-preserving image interpolation system for a digital camcorder

Author

Hong, Kwan Pyo ; Paik, Joon Ki ; Kim, Hyo Ju ; Lee, Chul Ho

Author_Institution

Dept. of Electron. Eng., Chungang Univ., Seoul, South Korea

Volume

42

Issue

3

fYear

1996

fDate

8/1/1996 12:00:00 AM

Firstpage

279

Lastpage

284

Abstract

Conventional image interpolation techniques degrade the quality of the magnified image due to various artifacts, such as, blocking artifact and excessive smoothing. Those degradations become worse as the magnification ratio increases and there also exists a tradeoff between reducing the blocking artifact and excessive smoothness. An image interpolation system, which provides more naturally magnified images than the conventional ones, is proposed. The system preserves the original edge while not destroying the smoothness in the flat area. The hardware structure of the proposed system is also proposed

Keywords

digital magnetic recording; discrete cosine transforms; edge detection; feature extraction; interpolation; smoothing methods; video cameras; DCT coefficients; blocking artifact; edge extraction; edge preserving image interpolation system; excessive smoothing; hardware structure; magnification ratio; magnified image; Adaptive filters; Data mining; Degradation; Digital images; Discrete cosine transforms; Hardware; Interpolation; Smoothing methods; Spline; Video equipment;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.536121

Filename

536121