Method of and system for sharp object detection using computed tomography images
US7302083B2 · kind B2 · utility
49Cited by
38References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 1, 2004 |
| Grant date | Nov 27, 2007 |
| Priority date | — |
| Expiry date | Jun 23, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30112
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of and a system for sharp object detection using computed tomography images are provided. The method comprises identifying voxels corresponding to individual objects; performing eigen-analysis and generating eigen-projection of an identified object; computing an axial concavity ratio of the identified object; computing a pointness measurement of the identified object; computing a flat area of the identified object; calculating a sharpness score of the identified object; and declaring the identified object as a threat if the sharpness score is greater than a pre-defined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.