System and method for restoring, describing and graphically displaying noise-corrupted boundaries in tomography images
US6292578A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 4, 2000 |
| Grant date | Sep 18, 2001 |
| Priority date | — |
| Expiry date | Aug 4, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30004
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Noise-corrupted boundary information in tomographic images is restored using a data structure, called a "boundary envelope". Both the restored boundary information and a measure of the precision of the restoration are described by the process. This data structure is used to describe the restored information in both qualitative and quantitative terms. The results of the boundary restoration process are described qualitatively by graphically displaying the boundary envelope together with the noisy CT image in such a way that allows a human observer to (a) see more details of the boundary than are visible in the CT image alone, and (b) to visually apprehend the precision with which the boundary has been restored. A boundary envelope describes a region in the image within which the boundary of a given noisy object is guaranteed to lie. The boundary envelope describes a set of limits on the object boundary, and limits on those properties of a noisy object that can be computed from boundary information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.