发明名称 AUTOMATIC FOCUS CONTROLLER AND IMAGE PICKUP DEVICE
摘要 PROBLEM TO BE SOLVED: To provide an automatic focus controller achieving a stable autofocus control by suppressing an influence of an object different from a principal object on a focus signal. SOLUTION: The automatic focus controller which performs focus control based on the focus signal corresponding to contrast of an image extracted from among output signals of an image pickup means comprises: a setting means S402 for setting an autofocus region in a screen of the image pickup means; extraction means S403, S404 for extracting focus signals of a plurality of extraction characteristics from among the output signals of the image pickup means corresponding to the autofocus region; and a selection means S404 for selecting the focus signal of an extraction characteristic in accordance with the set state of the autofocus region. COPYRIGHT: (C)2008,JPO&INPIT
申请公布号 JP2008046226(A) 申请公布日期 2008.02.28
申请号 JP20060219819 申请日期 2006.08.11
申请人 CANON INC 发明人 KAWANISHI ATSUYA
分类号 G02B7/28;G02B7/36;G03B13/36 主分类号 G02B7/28
代理机构 代理人
主权项
地址