Lee, Je-Ho Kim, Kun-Sop Kwon, Yong-Mu Kim, Hyoung-Gon 2024-01-12T11:40:27Z 2024-01-12T11:40:27Z 2022-03-07 1995-06 0747-668X https://pubs.kist.re.kr/handle/201004/85989 In this paper, we propose a passive AF algorithm based on two-stage focusing process where two different focus measures are used. With the paraxial geometric optics models of image formation, we investigate some well-known focus measures and derive a robust focusing technique with them. English IEEE Implementation of a passive automatic focusing algorithm for digital still camera Conference 1 1995 IEEE International Conference on Consumer Electronics, pp.56 - 57 1995 IEEE International Conference on Consumer Electronics 56 57 US Rosemont, IL, USA 1995-06-07 Digest of Technical Papers - IEEE International Conference on Consumer Electronics 2-s2.0-0029227460