Method for recognizing multiple irradiation fields in digital radiography
US6212291A · kind A · utility
11Cited by
14References
23Claims
0Family size
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Key dates
| Filing date | Jan 29, 1998 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Jan 29, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30004
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of processing a digital radiographic image comprising the steps of: providing a digital radiographic image having a plurality of radiation fields and collimation regions defined by collimation blades at least partially bounding the radiation fields; detecting and classifying pixels of the digital radiographic image as collimation boundary transition pixels; line-level delineating of a plurality of candidate collimation blades from the collimation boundary transition pixels; estimating the most likely partitioning; and determining at a region level the radiation field from the results of the partitioning estimating step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.