发明名称 |
Selection of an auto focusing method in an imaging apparatus |
摘要 |
An imaging apparatus includes an imaging device receiving light from an object through an imaging lens at a predetermined imaging plane and performing photoelectric conversion of an object image to generate a captured image; a phase-difference detector for receiving the light from the object and generating a phase-difference detection signal corresponding to a focus level of the object image; an evaluation-value calculator for calculating a predetermined evaluation value corresponding to a contrast of the object image on the basis of the captured image; and a determining unit for selecting an optimum AF method from among a plurality of AF methods in which the phase-difference detection signal obtained by the phase-difference detecting unit and the predetermined evaluation value based on the captured image are used selectively or in combination, the optimum AF method being selected in accordance with image-capturing conditions of the object. |
申请公布号 |
US8203642(B2) |
申请公布日期 |
2012.06.19 |
申请号 |
US20070859262 |
申请日期 |
2007.09.21 |
申请人 |
SOGAWA HISAMO;FUJII SHINICHI;KAGEYAMA KAZUMI;KATAYAMA TOSHIO;YAMAGUCHI MASATO;SONY CORPORATION |
发明人 |
SOGAWA HISAMO;FUJII SHINICHI;KAGEYAMA KAZUMI;KATAYAMA TOSHIO;YAMAGUCHI MASATO |
分类号 |
H04N5/232 |
主分类号 |
H04N5/232 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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