Methods and apparatus for estimating a material composition of an imaged object
US6674835B2 · kind B2 · utility
26Cited by
8References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2001 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Jul 5, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N23/044
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for estimating a material composition of an imaged object using an imaging system. The imaging system includes a radiation source and a digital detector. The method also includes scanning a plurality of calibration phantoms with varying material composition to acquire a plurality of reference calibration images, estimating an attenuation coefficient thickness product for each pixel in the reference calibration images, and estimating a material composition of a region of interest using the estimated pixelwise coefficient thickness product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.