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

Autor: Sun-Ho Cho, Chong-Kug Park, Sang-Yong Lee, In-Jae Tak
Rok vydání: 2007
Předmět:
Zdroj: Journal of Control, Automation and Systems Engineering. 13:798-803
ISSN: 1225-9845
DOI: 10.5302/j.icros.2007.13.8.798
Popis: 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.
Databáze: OpenAIRE