Method of determining the mass of objects from a plurality of X-ray images taken at different energy level
US9945714B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 6, 2016 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Apr 6, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G9/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of determining the mass of an object by scanning the object in a radiographic inspection system, specifically in an X-ray scanner with the capability to take scan images at a plural number J of energy leves, has three modes or parts, namely: an initial learning mode, a normal operating mode, and a learning improvement mode. An inintial learning mode in which refernce object are scanned and their actual masses weighed and stored as reference values. A normal operating mode wherein smaple objects with unknown mass m are scanned and analyzed for compatibility with the reference values, and if found incompatible, the method switches to the learning improvement mode. A learning improvement mode in which the actual mass of the sample object found incompatible is determined by weighing and updates the stored reference values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.