System and method for solid component evaluation in mixed ground glass nodules
US7949162B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2007 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Mar 23, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30101
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for segmenting a solid component (SC) in a ground glass nodule (GGN) includes providing a digitized image that includes a segmented GGN, the image comprising a plurality of intensities corresponding to a 3-dimensional grid of points, computing an intensity threshold that distinguishes a high intensity solid component of the GGN from a low intensity non-solid component, and applying the intensity threshold to identify a SC of the GGN and to identify regions of interest around the GGN, detecting whether or not a region of interest is a vessel, calculating a model for a detected vessel based on a radius and orientation of the vessel, and removing from the GGN segmentation all points that belong to both the model and the SC inside the GGN, and verifying whether a structure resulting from excluding the points qualifies as an SC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.