Title :
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
fDate :
8/1/2001 12:00:00 AM
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;
Journal_Title :
Consumer Electronics, IEEE Transactions on
