Wide field imaging using physically small detectors
US-2015362737-A1 · Dec 17, 2015 · US
Scribble segmentation method and apparatus
US9105096B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9105096-B2 |
| Application number | US-201313744959-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 18, 2013 |
| Priority date | Jul 11, 2011 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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Abstract
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An apparatus and method of segmenting an image using scribble segmentation is provided. An image is segmented by constraining the membership value of a subset of image elements, solving a weighted biharmonic equation subject to the constrained membership values wherein the weights are determined from similarities between image elements, and determining the final segmentation based on the membership value of each image element. An image may also be segmented by constraining a membership value of a subset of image elements, determining the unknown membership values given the constraints by solving a linear equation system using a multigrid technique, and updating a coarser level of the multigrid hierarchy to account for additional constraints using patch matrices.
First claim
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What is claimed is: 1. A method of segmenting a digitized image, the method comprising: receiving the digitized image, the digitized image having a plurality of image elements; constructing, by a processing circuit, a multigrid hierarchy of matrices having a plurality of levels, each level of the multigrid hierarchy associated with a different resolution of the image elements; segmenting, by the processing circuit, the digitized image into at least two visible portions by cons…
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Physics · mapped topic
- G06T7/0081Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- G06T7/11Primary
Physics · mapped topic
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- What does patent US9105096B2 cover?
- An apparatus and method of segmenting an image using scribble segmentation is provided. An image is segmented by constraining the membership value of a subset of image elements, solving a weighted biharmonic equation subject to the constrained membership values wherein the weights are determined from similarities between image elements, and determining the final segmentation based on the member…
- Who is the assignee on this patent?
- Elekta Ab, Elekta Ab
- What technology area does this patent fall under?
- Primary CPC classification G06T7/0081. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 11 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).