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公开(公告)号:US11119387B2
公开(公告)日:2021-09-14
申请号:US16603316
申请日:2018-04-17
Applicant: SONY CORPORATION
Inventor: Daisuke Hiro , Katsunari Oda , Shohei Sakaguchi
Abstract: With a pre-light emission quantity adjusted to an appropriate value, the accuracy of light control for main light emission can be enhanced. A first pre-light emission quantity is obtained with no use of distance information. An appropriate light emission quantity is obtained with use of distance information, and a second pre-light emission quantity is obtained by decreasing the appropriate light emission quantity by a predetermined quantity according to a photometric wave detection capacity. A final pre-light emission quantity is obtained by mixing the first pre-light emission quantity and the second pre-light emission quantity, at a ratio corresponding to the accuracy of the distance information used to obtain the appropriate light emission quantity.
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公开(公告)号:US11272113B2
公开(公告)日:2022-03-08
申请号:US16756202
申请日:2018-09-12
Applicant: SONY CORPORATION
Inventor: Toshinori Kanai , Shohei Sakaguchi
Abstract: A region extracting section 31 extracts an image of a subject region and an image of a background region from a picked up image. A region-specific exposure control amount calculating section 33 calculates a subject region exposure control amount based on the image of the subject region and a background region exposure control amount based on the image of the background region. An exposure control amount calculating section 34 sets a contribution ratio of the subject region exposure control amount and a contribution ratio of the background region exposure control amount, and calculates an exposure control amount for use in exposure adjustment by mixing the subject region exposure control amount and the background region exposure control amount at a mixing ratio based on the set contribution ratios. A control section 55 controls a shutter speed, an aperture value, and other settings based on the exposure control amount calculated by the exposure control amount calculating section 34. Thus, regardless of whether or not flash light emission is to be performed, stable exposure is obtained with natural, balanced brightness ensured in the picked up image.
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公开(公告)号:US10908478B2
公开(公告)日:2021-02-02
申请号:US16482599
申请日:2018-01-11
Applicant: Sony Corporation
Inventor: Tetsuma Yoshino , Katsunari Oda , Shohei Sakaguchi
Abstract: A subject region discrimination unit 11 discriminates a desired subject region on the basis of ranging information. A subject photometric region setting unit 12 performs image signal processing of the desired subject region that is discriminated by the subject region discrimination unit 11, and sets a photometric region corresponding to the subject region after the processing as a subject photometric region. A photometric value calculation unit 13 calculates a photometric value of the desired subject region by using a photometric value of the subject photometric region that is set by the subject photometric region setting unit 12. For this reason, it is possible to accurately acquire the photometric value with respect to the desired subject region, and it is possible to perform optimal exposure control with respect to the desired subject region by using the photometric value that is calculated by the photometric value calculation unit.
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公开(公告)号:US20200012171A1
公开(公告)日:2020-01-09
申请号:US16482599
申请日:2018-01-11
Applicant: Sony Corporation
Inventor: Tetsuma Yoshino , Katsunari Oda , Shohei Sakaguchi
Abstract: A subject region discrimination unit 11 discriminates a desired subject region on the basis of ranging information. A subject photometric region setting unit 12 performs image signal processing of the desired subject region that is discriminated by the subject region discrimination unit 11, and sets a photometric region corresponding to the subject region after the processing as a subject photometric region. A photometric value calculation unit 13 calculates a photometric value of the desired subject region by using a photometric value of the subject photometric region that is set by the subject photometric region setting unit 12. For this reason, it is possible to accurately acquire the photometric value with respect to the desired subject region, and it is possible to perform optimal exposure control with respect to the desired subject region by using the photometric value that is calculated by the photometric value calculation unit.
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