Method for detecting the collimation field in a digital radiography
US5901240A · kind A · utility
21Cited by
18References
9Claims
0Family size
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Key dates
| Filing date | Dec 12, 1996 |
| Grant date | May 4, 1999 |
| Priority date | — |
| Expiry date | Dec 12, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30004
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of processing a digital radiographic image includes the following the steps. (1) A digital radiographic image having a radiation region and a collimation region defined by collimation blades at least partially bounding the radiation region is provided. (2) Pixels of the digital radiographic image are detected and classified as collimation boundary transition pixels. (3) Candidate collimation blades are detected and classified from the collimation boundary transition pixels. (4) At a regional level, the collimation region are determined from the results of the line-level delineating step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.