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1. 发明授权

US08331451B2 Method and apparatus for enhancing resolution of video image 有权
标题翻译：提高视频图像分辨率的方法和装置
公开(公告)号：US08331451B2
公开(公告)日：2012-12-11
申请号：US11826755
申请日：2007-07-18
申请人： Yousun Bang , Edward J. Delp , Fengqing Zhu , Ho-young Lee , Heui-keun Choh
发明人： Yousun Bang , Edward J. Delp , Fengqing Zhu , Ho-young Lee , Heui-keun Choh
IPC分类号： H04N7/12
CPC分类号： H04N19/51
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.
摘要翻译：提供了当增强视频序列中的预定关键帧的分辨率时能够防止图像质量劣化的技术。具体地，提供了一种用于增强视频帧的分辨率的装置。该装置包括：帧提取单元，从视频序列中提取关键帧和关键帧的一个或多个相邻帧; 上采样单元，其对关键帧和相邻帧进行上采样; 运动矢量搜索单元，其使用所述上采样的相邻帧作为参考帧来计算所述上采样的关键帧的运动矢量; 以及关键帧估计单元，其使用从关键帧中的运动矢量和空间信息获得的时间信息来提高上采样的关键帧的质量。

2. 发明申请

US20090022226A1 Method and apparatus for enhancing resolution of video image 有权
标题翻译：提高视频图像分辨率的方法和装置
公开(公告)号：US20090022226A1
公开(公告)日：2009-01-22
申请号：US11826755
申请日：2007-07-18
申请人： Yoo-sun Bang , Edward J. Delp , Fengqing Zhu , Ho-young Lee , Heui-keun Choh
发明人： Yoo-sun Bang , Edward J. Delp , Fengqing Zhu , Ho-young Lee , Heui-keun Choh
IPC分类号： H04B1/66
CPC分类号： H04N19/51
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.
摘要翻译：提供了当增强视频序列中的预定关键帧的分辨率时能够防止图像质量劣化的技术。具体地，提供了一种用于增强视频帧的分辨率的装置。该装置包括：帧提取单元，从视频序列中提取关键帧和关键帧的一个或多个相邻帧; 上采样单元，其对关键帧和相邻帧进行上采样; 运动矢量搜索单元，其使用所述上采样的相邻帧作为参考帧来计算所述上采样的关键帧的运动矢量; 以及关键帧估计单元，其使用从关键帧中的运动矢量和空间信息获得的时间信息来提高上采样的关键帧的质量。

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