发明授权
US07880769B2 Adaptive image stabilization 有权
自适应图像稳定

  • 专利标题: Adaptive image stabilization
  • 专利标题(中): 自适应图像稳定
  • 申请号: US10779246
    申请日: 2004-02-13
  • 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
Adaptive image stabilization
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.
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