Title :
A fuzzy-control processor for automatic focusing
Author :
Lee, Yongman ; Jang, Seong-lk ; Chung, Keewook ; Lee, Dongyun ; Kim, Wonchan ; Lee, Choong-Woong
Author_Institution :
Dept. of Electron. Eng., Seoul Univ., South Korea
fDate :
5/1/1994 12:00:00 AM
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
Keywords :
CMOS integrated circuits; application specific integrated circuits; digital signal processing chips; focusing; fuzzy control; image processing; intelligent control; motion estimation; parameter estimation; telecommunications control; video cameras; video recording; auto-focusing; automatic focusing; fuzzy-control IC; fuzzy-control processor; intelligent control; location; luminance; motion; scene-dependent fuzzy inference; two dimensional field array; video camera; CMOS technology; Cameras; EPROM; Eyes; Fuzzy control; Humans; Inference algorithms; Intelligent control; Layout; Microprocessors;
Journal_Title :
Consumer Electronics, IEEE Transactions on
