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Smoothing and GPU-enabled rendering of digital ink

US9508166B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9508166-B2
Application numberUS-201414486735-A
CountryUS
Kind codeB2
Filing dateSep 15, 2014
Priority dateSep 15, 2014
Publication dateNov 29, 2016
Grant dateNov 29, 2016

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  1. Title

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

Systems, methods, and computer-readable storage media are provided for efficient real-time ink stroke smoothing, trajectory prediction, and GPU-leveraged rendering of ink stroke input. First and second ink points are received and an active Bézier approximation is computed based thereupon. Sequentially later in time that the first and second ink points, a third ink point is received. It is determined whether the third ink point adequately fits the active Bézier approximation. Where it is determined that the third ink point adequately fits, an updated active Bézier approximation is computed that includes the first, second and third ink points. Where it is determined that the third ink point fails to adequately fit, a different new Bézier approximation is computed that includes the third ink point but not the first and second ink points. Leveraging a GPU, a smoothed ink stroke based upon the Bézier approximation(s) is rendered.

First claim

Opening claim text (preview).

What is claimed is: 1. A method being performed by one or more computing devices including at least one processor, the method for smoothing digital ink input received via a stroke receiving surface, the method comprising: receiving a plurality of ink points and establishing a first set of ink points; computing a first cubic Bezier approximation based on the first set of ink points; receiving a first additional ink point sequentially and later in time with respect to the first…

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Frequently asked questions

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What does patent US9508166B2 cover?
Systems, methods, and computer-readable storage media are provided for efficient real-time ink stroke smoothing, trajectory prediction, and GPU-leveraged rendering of ink stroke input. First and second ink points are received and an active Bézier approximation is computed based thereupon. Sequentially later in time that the first and second ink points, a third ink point is received. It is deter…
Who is the assignee on this patent?
Microsoft Corp, Microsoft Technology Licensing Llc
What technology area does this patent fall under?
Primary CPC classification G06T11/23. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Nov 29 2016 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).