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. 11, 2012
Filed:
Jul. 18, 2007
Yousun Bang, Seoul, KR;
Edward J. Delp, West Lafeyette, IN (US);
Fengqing Zhu, West Lafayette, IN (US);
Ho-young Lee, Suwon-si, KR;
Heui-keun Choh, Seoul, KR;
Yousun Bang, Seoul, KR;
Edward J. Delp, West Lafeyette, IN (US);
Fengqing Zhu, West Lafayette, IN (US);
Ho-young Lee, Suwon-si, KR;
Heui-keun Choh, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Purdue Research Foundation, West Lafayette, IN (US);
Abstract
Provided is a technology which can prevent deterioration of image quality when enhancing resolution of a predetermined key frame in a video sequence. Specifically, an apparatus to enhance resolution of a video frame is provided. The apparatus includes a frame extraction unit which extracts a key frame and one or more neighboring frames of the key frame from a video sequence; an upsampling unit which upsamples the key frame and the neighboring frames; a motion-vector search unit which calculates a motion vector of the upsampled key frame using the upsampled neighboring frames as reference frames; and a key-frame estimation unit which enhances quality of the upsampled key frame using temporal information obtained from the motion vector and spatial information in the key frame.