- CCM 테스트 핸들러의 자동초점조절을 위한 퍼지탐색 방법
- ㆍ 저자명
- 권혁중,윤희상,박태형,Kwon. Hyuk-Joong,Yoon. Hee-Sang,Park. Tae-Hyoung
- ㆍ 간행물명
- 제어·자동화·시스템공학 논문지
- ㆍ 권/호정보
- 2007년|13권 11호|pp.1112-1118 (7 pages)
- ㆍ 발행정보
- 제어로봇시스템학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
We propose a new-focusing method for test handlers of compact camera module (CCM), The MMD (max-min difference) method is applied to calculate the focus value quickly considering the noisy output of CCM. Also, the fuzzy search method is applied to find the maximum focus value effectively. We design a fuzzy processor to control the lens position by focus values and brightness values, which improves the focusing performance in the sense of speed and processor memory. The proposed method is implemented by computer program and installed at the CCM test handler machines. The simulation results are presented to verify the usefulness of the proposed method.