An advanced video camera system with robust AF, AE, and AWB control

Author

Lee, June-Sok ; Jung, You-Young ; Kim, Byung-Soo ; Ko, Sung-Jea

Author_Institution

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

Volume

47

Issue

3

fYear

2001

fDate

8/1/2001 12:00:00 AM

Firstpage

694

Lastpage

699

Abstract

This paper presents an advanced video camera system which has robust automatic focus (AF), automatic exposure (AE), and automatic white-balance (AWB) control. The proposed AF algorithm decides the correct moving direction of the lens and detects the accurate in-focus state even though the scene is interfered with by the high light intensity. Experimental results demonstrate that the proposed system can be an effective alternative to conventional systems using the hill-climbing method

Keywords

digital signal processing chips; lenses; optical focusing; telecommunication control; video cameras; video signal processing; AE control; AF control; AWB control; DSP technology; advanced video camera system; automatic exposure; automatic focus algorithm; automatic white-balance; consumer video cameras; digital signal processing; high light intensity; hill-climbing method; in-focus state; lens; Automatic control; Cameras; Control systems; Focusing; Frequency; Layout; Lenses; Light sources; Robust control; Temperature;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.964165

Filename

964165