发明名称 Image pickup apparatus and image pickup method
摘要 An image pickup apparatus which can reduce the time required for automatic focus scanning. The size of the face is determined based on information on a subject's face, which is detected from image data acquired by shooting by an image pickup device. The subject distance is estimated based on the determined size of the face. The depth of field is calculated. A range over which the focus lens is driven varies according to the estimated subject distance and the calculated depth of field.
申请公布号 US8300139(B2) 申请公布日期 2012.10.30
申请号 US20100764536 申请日期 2010.04.21
申请人 TAKAYAMA MASAHIRO;CANON KABUSHIKI KAISHA 发明人 TAKAYAMA MASAHIRO
分类号 G03B13/00;H04N5/232 主分类号 G03B13/00
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