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http://dx.doi.org/10.5302/J.ICROS.2007.13.8.798

A Study of Improved Auto Exposure System for Digital Still Camera Using Fuzzy Logic  

Cho, Sun-Ho (경희대학교 전자공학과)
Lee, Sang-Yong (LG 부품소재 연구소)
Tak, In-Jae (경희대학교 전자공학과)
Park, Chong-Kug (경희대학교 전자공학과)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.13, no.8, 2007 , pp. 798-803 More about this Journal
Abstract
In case of minimized digital camera and mobile digital camera, it's difficult to get the high quality image by conventional AE(Auto Exposure) algorithm because of restriction of system organization. In this paper, a new algorithm that adopts a target setting, a compensation of feedback delay and a gamma correction, etc, are suggested for improving a noise increase and an output sensitivity decrease due to system minimization. We also suggest a method using fuzzy logic which can decide more effectively the ES(Electric Shutter) value and the AGC(Analog Gain Control) value than conventional system.
Keywords
digital camera; AE; ES; AGC; gamma correction; fuzzy;
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