Combined digital zooming and digital effects system utilizing CCD signal characteristics

Author

Paik, Joon Ki ; Park, Sung Wook ; Kim, Hyo Ju

Author_Institution

Dept. of Electron. Eng., Chung-Ang Univ., Seoul, South Korea

Volume

39

Issue

3

fYear

1993

Firstpage

398

Lastpage

406

Abstract

An image processing system for digital zooming and digital effects is proposed. This system directly processes the CCD (charge coupled device) signal without separating it into luminance and chrominance signals, based on the characteristics of the color filter array in the CCD. By using the proposed color signal processing method, and efficient and high-quality digital zooming system is obtained. Various special effect functions are included in the system by adding simple controls for the addresses of the accompanied image buffers. The digital zooming can magnify the real-time dynamic images up to 4 times by 25 discrete steps. The digital effects unit achieves various visual effects by controlling the accompanied image buffers. To realize the proposed system, approximately 270000 transistors are integrated in a single chip VLSI by using 0.8 μm double metal CMOS technology

Keywords

CCD image sensors; CMOS integrated circuits; VLSI; colour television cameras; image processing; video cameras; 0.8 micron; CCD colour video camera; addresses; charge coupled device; color filter array; color signal processing; digital effects system; digital zooming system; double metal CMOS technology; image buffers; image processing system; signal characteristics; single chip VLSI; transistors; Array signal processing; CMOS technology; Charge coupled devices; Charge-coupled image sensors; Color; Control systems; Digital signal processing; Filters; Image processing; Signal processing;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.234612

Filename

234612