The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 05, 2011
Filed:
Mar. 28, 2007
Byung-kwan Park, Yongin-si, KR;
Seong-deok Lee, Yongin-si, KR;
Hyun-hwa OH, Yongin-si, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
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.