发明名称 |
Method and apparatus for enhancing resolution of video image |
摘要 |
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.
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申请公布号 |
US8331451(B2) |
申请公布日期 |
2012.12.11 |
申请号 |
US20070826755 |
申请日期 |
2007.07.18 |
申请人 |
BANG YOUSUN;DELP EDWARD J.;ZHU FENGQING;LEE HO-YOUNG;CHOH HEUI-KEUN;SAMSUNG ELECTRONICS CO., LTD.;PURDUE RESEARCH FOUNDATION |
发明人 |
BANG YOUSUN;DELP EDWARD J.;ZHU FENGQING;LEE HO-YOUNG;CHOH HEUI-KEUN |
分类号 |
H04N7/12 |
主分类号 |
H04N7/12 |
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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