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:
Dec. 26, 2017
Filed:
Apr. 27, 2016
SK Hynix Inc., Gyeonggi-do, KR;
Chungang University Industry Academic Cooperation Foundation, Seoul, KR;
Joon Ki Paik, Seoul, KR;
Yoon Jong Yoo, Seoul, KR;
Jin Beum Jang, Gyeonggi-do, KR;
Jong Heon Kim, Gyeonggi-do, KR;
Jae Hyun Im, Seoul, KR;
Jae Hwan Jeon, Seoul, KR;
Wan Hee Jo, Seoul, KR;
SK Hynix Inc., Gyeonggi-do, KR;
Chungang University Industry Academic Cooperation Foundation, Seoul, KR;
Abstract
The present invention relates to an auto-focus system and method based on a sensor, using hierarchical extraction and motion estimation for an image. The auto-focus method may include the steps of: (a) extracting a phase difference image from a sensed image; (b) extracting a robust feature image which satisfies a preset reference with respect to noise and out-of-focus blur, from the phase difference image; and (C) estimating a motion vector for lens shift from the feature image.