Patent · US Active

Image reconstruction based on energy-resolved image data from a photon-counting multi-bin detector

US9870628B2 · kind B2 · utility

4Cited by

12References

4Claims

0Family size

Assignee

Prismatic Sensors AB · SE

Inventors

Fredrik Grönberg · Stockholm, SE
Mats Persson · Västerhaninge, SE
Hans Bornefalk · Vallentuna, SE

Key dates

Filing date	Mar 18, 2015
Grant date	Jan 16, 2018
Priority date	—
Expiry date	Mar 18, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG06T2211/408
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

There is provided a method of image reconstruction based on energy-resolved image data from a photon-counting multi-bin detector or an intermediate storage. The method comprises processing (S1) the energy-resolved image data by performing at least two separate basis decompositions using different number of basis functions for modeling linear attenuation, wherein a first basis decomposition is performed using a first smaller set of basis functions to obtain at least one first basis image representation, and wherein a second basis decomposition is performed using a second larger set of basis functions to obtain at least one second basis image representation. The method also comprises reconstructing a first image based on said at least one first basis image representation obtained from the first basis decomposition, and combining the first image with information representative of said at least one second basis image representation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.