发明名称 |
Image capturing apparatus, control method of image capturing apparatus, and image capturing system |
摘要 |
An image capturing apparatus comprises a focus detection unit configured to detect, based on a signal output from an image sensor, a focus evaluation value using one of a plurality of different focus detection methods, a correction unit configured to correct the focus evaluation value in accordance with the focus detection method used for the detection, and a storage unit configured to store information for calculating a reference correction value for correcting a focus evaluation value detected using a predetermined one of the focus detection methods, and information for calculating, from the reference correction value, a correction value for correcting a focus evaluation value detected using another of the focus detection methods. The correction unit calculates a correction value using the information stored in the storage unit, and corrects the focus evaluation value using the calculated correction value. |
申请公布号 |
US9407813(B2) |
申请公布日期 |
2016.08.02 |
申请号 |
US201514722446 |
申请日期 |
2015.05.27 |
申请人 |
Canon Kabushiki Kaisha |
发明人 |
Hamano Hideyuki;Takao Yumi |
分类号 |
G03B13/00;H04N5/232;H04N1/21 |
主分类号 |
G03B13/00 |
代理机构 |
Cowan, Liebowitz & Latman, P.C. |
代理人 |
Cowan, Liebowitz & Latman, P.C. |
主权项 |
1. An image capturing apparatus comprising:
a focus detection unit configured to detect, based on a signal output from an image sensor, a focus evaluation value for controlling an imaging optical system to be in an in-focus state using one of a plurality of different focus detection methods; a correction unit configured to correct the focus evaluation value in accordance with the focus detection method used for the detection; and a storage unit configured to store information for calculating a reference correction value for correcting a focus evaluation value detected using a predetermined focus detection method from among the plurality of different focus detection methods, and information for calculating, from the reference correction value, a correction value for correcting a focus evaluation value detected using a focus detection method other than the predetermined focus detection method from among the plurality of different focus detection methods, wherein the correction unit is configured to calculate a correction value for correcting the focus evaluation value using the information stored in the storage unit, and correct the focus evaluation value using the calculated correction value. |
地址 |
Tokyo JP |