- 专利标题: Video image stabilization
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申请号: US15218405申请日: 2016-07-25
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公开(公告)号: US09706123B2公开(公告)日: 2017-07-11
- 发明人: Sebastien X. Beysserie , Damien J. Thivent , Jianping Zhou , Rudolph van der Merwe , Jason Klivington , Xiaoxing Li , Anders Holtsberg , Martin Lindberg , George E. Williams
- 申请人: Apple Inc.
- 申请人地址: US CA Cupertino
- 专利权人: Apple Inc.
- 当前专利权人: Apple Inc.
- 当前专利权人地址: US CA Cupertino
- 代理机构: Blank Rome LLP
- 主分类号: H04N5/232
- IPC分类号: H04N5/232 ; G06T5/00
摘要:
Techniques to permit a digital image capture device to stabilize a video stream in real-time (during video capture operations) are presented. In general, techniques are disclosed for stabilizing video images using an overscan region and a look-ahead technique enabled by buffering a number of video input frames before generating a first stabilized video output frame. (Capturing a larger image than is displayed creates a buffer of pixels around the edge of an image; overscan is the term given to this buffer of pixels.) More particularly, techniques are disclosed for buffering an initial number of input frames so that a “current” frame can use motion data from both “past” and “future” frames to adjust the strength of a stabilization metric value so as to keep the current frame within its overscan. This look-ahead and look-behind capability permits a smoother stabilizing regime with fewer abrupt adjustments.
公开/授权文献
- US20160337589A1 Video Image Stabilization 公开/授权日:2016-11-17
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