Tonal stabilization of video

US9100570B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9100570-B2
Application numberUS-201214112254-A
CountryUS
Kind codeB2
Filing dateApr 18, 2012
Priority dateApr 18, 2011
Publication dateAug 4, 2015
Grant dateAug 4, 2015

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Abstract

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A method of tonally stabilizing a video sequence is provided herein. The method includes the following stages: automatically selecting one or more anchor frames from a sequence of frames; obtaining an anchor adjustment map for each selected anchor frame; applying an edge-preserving smoothing algorithm to the sequence of frames; generating for any given pair of smoothed frames, a robust set of pixels indicating pixels affected by external tonal fluctuation only; initializing an adjustment map for any given frame by applying the anchor adjustment map to accumulated color differences between pixels of the robust set of the given frame and the anchor frame; and completing the initialized adjustment map by predicting values of pixels in each adjustment map not included in the robust set by applying an interpolation at a color space for these pixels, wherein the adjustment maps are usable for tonally aligning the video sequence with the anchor frame.

First claim

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What is claimed is: 1. A method of tonally stabilizing a video sequence, the method comprising: automatically selecting one or more anchor frames from a sequence of frames; obtaining an anchor adjustment map for each selected anchor frame; applying an edge-preserving smoothing algorithm to the sequence of frames; generating for any given pair of smoothed frames, a robust set of pixels indicating pixels affected by external tonal fluctuation only; initializing an adjustment…

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What does patent US9100570B2 cover?
A method of tonally stabilizing a video sequence is provided herein. The method includes the following stages: automatically selecting one or more anchor frames from a sequence of frames; obtaining an anchor adjustment map for each selected anchor frame; applying an edge-preserving smoothing algorithm to the sequence of frames; generating for any given pair of smoothed frames, a robust set of p…
Who is the assignee on this patent?
Lischinski Daniel, Farbman Zeev, Yissum Res Dev Co
What technology area does this patent fall under?
Primary CPC classification H04N23/951. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Aug 04 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).