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:
Aug. 23, 2016
Filed:
Nov. 20, 2014
Hanwha Techwin Co., Ltd., Changwon-Si, KR;
Kyungeun Lee, Changwon-si, KR;
Youngseo Park, Changwon-si, KR;
Dongseuk Park, Changwon-si, KR;
Chunwon Lee, Changwon-si, KR;
Youngsang Kwon, Changwon-si, KR;
Daebong Kim, Changwon-si, KR;
Hanwha Techwin Co., Ltd., Changwon-si, KR;
Abstract
An auto-focusing method includes dividing an image into a plurality of blocks, performing discrete cosine transform (DCT) on image data of the plurality of blocks to output a plurality of DCT blocks each comprising DCT coefficients, generating a DCT mask for selecting DCT coefficients corresponding to a selected frequency range in a DCT block among the plurality of DCT blocks, and calculating a focus value of the image by applying the generated DCT mask to the DCT block.