A fuzzy-control processor for automatic focusing

Authors :: Dong-Yun Lee
ChoongWoong Lee
Keewook Chung
Seong-Ik Jang
Yongman Lee
Wonchan Kim
Source :: IEEE Transactions on Consumer Electronics. 40:138-144
Publication Year :: 1994
Publisher :: Institute of Electrical and Electronics Engineers (IEEE), 1994.
Abstract: An fuzzy-control IC for the function of auto-focusing of a video camera is developed. This fuzzy processor determines the location and the motion of the object by evaluating the focus value and luminance value, which are stored in two dimensional field array. Experiments of scene-dependent fuzzy inference were made intensively on auto-focusing for various objects in various situations with this IC. It revealed that fuzzy control performs an intelligent control in auto-focusing under the difficult situations. >