Optimal energy weighting of dark field signal in differential phase contrast X-ray imaging

US10314556B2 · kind B2 · utility

Assignee

• KONINIKLIJKE PHILIPS N.V. · NL

Inventors

• Thomas Koehler · Norderstedt, DE
• Ewald Roessl · Ellerau, DE
• Gerhard Martens · Henstedt-Ulzburg, DE
• Heiner Daerr · Hamburg, DE

Key dates

• Filing date: Apr 25, 2016
• Grant date: Jun 11, 2019
• Expiry date: Apr 25, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2211/424
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Apparatus and related method for dark-field imaging. The apparatus operates on projective intensities detected at a detector in different energy channels. An energy weighting is used to improve the signal to noise ratio. The model operates in a logarithmic domain.