发明名称 |
FOCUS DETECTION APPARATUS, IMAGE PICKUP APPARATUS, IMAGE PICKUP SYSTEM, FOCUS DETECTION METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM |
摘要 |
A focus detection apparatus performs focus detection by a phase difference method using an image pickup element including first and second pixels, the focus detection apparatus includes a correlation data calculator which calculates correlation data between pixel data obtained from the first pixels and the second pixels in ranges of image data, a detector which detects a saturated pixel having a level of at least a predetermined value in each of the ranges, an adding processor which performs an addition processing of the correlation data calculated in each of the ranges based on a detection result, and a defocus amount calculator which calculates a defocus amount based on a result of the addition processing, and the adding processor performs the addition processing using correlation data obtained from a first range in which the number of the saturated pixels is less than a predetermined number. |
申请公布号 |
US2015172533(A1) |
申请公布日期 |
2015.06.18 |
申请号 |
US201514636344 |
申请日期 |
2015.03.03 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
Kunieda Shutaro;Ogawa Takeshi |
分类号 |
H04N5/232;H04N5/369;H04N5/359 |
主分类号 |
H04N5/232 |
代理机构 |
|
代理人 |
|
主权项 |
1. (canceled) |
地址 |
Tokyo JP |