Invention Grant
- Patent Title: Camera device, exposure control method, and program
- Patent Title (中): 相机设备,曝光控制方法和程序
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Application No.: US13321991Application Date: 2010-05-07
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Publication No.: US08885092B2Publication Date: 2014-11-11
- Inventor: Yuichiro Mori , Shoji Hatta , Kosuke Hosoi , Yasuji Nakamura , Ryoko Kato
- Applicant: Yuichiro Mori , Shoji Hatta , Kosuke Hosoi , Yasuji Nakamura , Ryoko Kato
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2009-124924 20090525
- International Application: PCT/JP2010/003130 WO 20100507
- International Announcement: WO2010/137241 WO 20101202
- Main IPC: G03B7/00
- IPC: G03B7/00 ; H04N5/235 ; H04N5/355 ; H04N5/232 ; H04N5/335 ; H04N5/238 ; G06K9/00 ; G06K9/40

Abstract:
A camera device (1) includes an imaging unit (2) which outputs a long exposure signal and a short exposure signal in one field period. A face detection unit (8) detects a face area from an image captured by the imaging unit (2). The weighting processing unit (12) applies a weighting process to luminance data of the long exposure signal in the detected face area using a weighting constant for reducing the luminance level of the long exposure signal. If the luminance level of the weighting-processed long exposure signal rises to a predetermined saturation level or higher, an exposure control unit (15) performs exposure control using the long exposure signal and the short exposure signal. This can suppress occurrence of a noise due to a short exposure signal (flickering) in the face area, thereby improving visibility in the face area.
Public/Granted literature
- US20120113297A1 CAMERA DEVICE, EXPOSURE CONTROL METHOD, AND PROGRAM Public/Granted day:2012-05-10
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