发明名称 |
Apparatus and method to control focusing of photographing device |
摘要 |
An apparatus and method to control the focusing of a photographing device, in which a light source portion is removed from an image, is provided. The focusing of the photographing device is controlled according to whether the image is in a high- or low-illuminance state. The apparatus includes a luminance detection unit detecting respective luminance values of pixels included in an image; a filter unit outputting values corresponding to the detected luminance values; a threshold calculation unit counting a number of pixels having luminance values greater than a predetermined value among the luminance values of the pixels included in the image and calculating a threshold value using a ratio of the counted number of pixels to a total number of pixels included in the image; and a control unit controlling a position of a lens using output values greater than the calculated threshold value among the output values.
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申请公布号 |
US7920202(B2) |
申请公布日期 |
2011.04.05 |
申请号 |
US20070727837 |
申请日期 |
2007.03.28 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
PARK BYUNG-KWAN;LEE SEONG-DEOK;OH HYUN-HWA |
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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