发明授权
- 专利标题: Exposure control apparatus and image pickup apparatus
- 专利标题(中): 曝光控制装置和图像拾取装置
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申请号: US11657934申请日: 2007-01-25
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公开(公告)号: US08121404B2公开(公告)日: 2012-02-21
- 发明人: Ruihua Xiao , Akira Shiga
- 申请人: Ruihua Xiao , Akira Shiga
- 申请人地址: JP
- 专利权人: Sony Corporation
- 当前专利权人: Sony Corporation
- 当前专利权人地址: JP
- 代理机构: Lerner, David, Littenberg, Krumholz & Mentlik, LLP
- 优先权: JPP2006-020136 20060130
- 主分类号: G06K9/00
- IPC分类号: G06K9/00 ; G06K9/40 ; G06F15/00 ; G03F3/08 ; H04N5/235 ; H04N5/202
摘要:
An exposure control apparatus for controlling an exposure adjustment mechanism on the basis of a captured image signal includes the following elements. A face detecting unit detects a face of a person appearing in a captured image on the basis of the captured image signal. A histogram data determining unit determines histogram data by setting a face detection region in the captured image according to detection information and detecting at least a brightness value of the face detection region from the captured image signal. A target brightness setting unit sets a target brightness range for desired brightness of the face. An exposure control amount determining unit determines, when a face is detected, an amount of control for the exposure adjustment mechanism by comparing the target brightness range with a brightness value at a peak of the histogram data or a brightness region in the vicinity of the peak.
公开/授权文献
- US20070177050A1 Exposure control apparatus and image pickup apparatus 公开/授权日:2007-08-02