Motion adaptive cropping for video stabilization

US8994838B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8994838-B2
Application numberUS-201313863432-A
CountryUS
Kind codeB2
Filing dateApr 16, 2013
Priority dateApr 16, 2013
Publication dateMar 31, 2015
Grant dateMar 31, 2015

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Abstract

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Determining an amount of motion in a second frame of video with reference to a first frame of video. Adaptively predicting a cropping factor for the second frame in response to the determined amount of motion. The cropping factor specifies a portion of the second frame that is to be excluded from the second frame. The predicted cropping factor is adaptively changed for a successive plurality of frames by buffering the first frame to predict a desired cropping factor for the second frame, wherein the first frame occurs prior to the second frame.

First claim

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What is claimed is: 1. A method comprising: an apparatus determining an amount of motion in a second frame of video with reference to a first frame of video; the apparatus adaptively predicting a cropping factor for the second frame in response to the determined amount of motion, wherein the cropping factor specifies a portion of the second frame that is to be excluded from the second frame; the apparatus transforming the second frame by applying the cropping factor to the sec…

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What does patent US8994838B2 cover?
Determining an amount of motion in a second frame of video with reference to a first frame of video. Adaptively predicting a cropping factor for the second frame in response to the determined amount of motion. The cropping factor specifies a portion of the second frame that is to be excluded from the second frame. The predicted cropping factor is adaptively changed for a successive plurality of…
Who is the assignee on this patent?
Nokia Corp
What technology area does this patent fall under?
Primary CPC classification H04N23/683. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).