发明授权
- 专利标题: Adaptive image stabilization
- 专利标题(中): 自适应图像稳定
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申请号: US10779246申请日: 2004-02-13
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公开(公告)号: US07880769B2公开(公告)日: 2011-02-01
- 发明人: Yingyong Qi
- 申请人: Yingyong Qi
- 申请人地址: US CA San Diego
- 专利权人: QUALCOMM Incorporated
- 当前专利权人: QUALCOMM Incorporated
- 当前专利权人地址: US CA San Diego
- 主分类号: H04N5/228
- IPC分类号: H04N5/228
摘要:
A method and apparatus for image stabilization takes an input image sequence including a plurality of frames, estimates frame-level motion vectors for each frame, and adaptively integrates the motion vectors to produce, for each frame, a motion vector to be used for image stabilization. A copy of the reference image of a frame is displaced by the corresponding adaptively integrated motion vector. In one embodiment, the perimeter of the image sensor is padded with a margin to be used for image compensation. In another embodiment, vertical and horizontal components are treated independently. In still another embodiment, the motion estimation circuitry associated with an MPEG-4 encoder is used to calculate macroblock level vectors, and a histogram is used to compute a corresponding frame-level vector for that frame.
公开/授权文献
- US20050179784A1 Adaptive image stabilization 公开/授权日:2005-08-18
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