Edge-based electronic image stabilization

Patent metadata

Field	Value
Publication number	US-9237271-B2
Application number	US-201414536338-A
Country	US
Kind code	B2
Filing date	Nov 7, 2014
Priority date	Jun 28, 2012
Publication date	Jan 12, 2016
Grant date	Jan 12, 2016

Abstract

An image stabilization system applies a “pinned-edge” or “soft pinned edge” image stabilization technique to digital video to compensate for unwanted camera motion in a captured video. In these stabilization techniques, a warping function is applied to an image frame to achieve a non-uniform shifting of depicted points in the image frame such that a reference point is stabilized with respect to a reference frame. In pinned-edge image stabilization, the final stabilized output video has the same dimensions as the pre-stabilized input video captured by the image sensor. In soft pinned-edge image stabilization, the pre-stabilized input video has slightly larger dimensions than the stabilized output video but these larger dimensions are still reduced compared to traditional electronic image stabilization.

First claim

The invention claimed is:

1. A method for stabilizing a digital video, the method comprising:
receiving a reference video frame depicting a scene, the reference video frame depicting a reference point represented by one or more pixels at a reference pixel location;
receiving a second frame depicting at least a portion of the scene, wherein movement of the reference point between the first and second frame results in the reference point being depicted at a different pixel locatio…

Assignees

• Gopro Inc

Inventors

• Campbell Scott Patrick

Classifications

• H04N23/683 Primary

  Electricity · mapped topic

• H04N5/23267 Primary

  Electricity · mapped topic