Invention Grant
- Patent Title: Cascaded camera motion estimation, rolling shutter detection, and camera shake detection for video stabilization
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Application No.: US15463127Application Date: 2017-03-20
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Publication No.: US09888180B2Publication Date: 2018-02-06
- Inventor: Matthias Grundmann , Vivek Kwatra , Irfan Essa
- Applicant: Google Inc.
- Applicant Address: US CA Mountain View
- Assignee: GOOGLE LLC
- Current Assignee: GOOGLE LLC
- Current Assignee Address: US CA Mountain View
- Agency: Lowenstein Sandler LLP
- Main IPC: H04N5/232
- IPC: H04N5/232 ; G06K9/00 ; G06T7/246

Abstract:
An easy-to-use online video stabilization system and methods for its use are described. Videos are stabilized after capture, and therefore the stabilization works on all forms of video footage including both legacy video and freshly captured video. In one implementation, the video stabilization system is fully automatic, requiring no input or parameter settings by the user other than the video itself. The video stabilization system uses a cascaded motion model to choose the correction that is applied to different frames of a video. In various implementations, the video stabilization system is capable of detecting and correcting high frequency jitter artifacts, low frequency shake artifacts, rolling shutter artifacts, significant foreground motion, poor lighting, scene cuts, and both long and short videos.
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