IN2014CN01546A - - Google Patents

Info

Publication number
IN2014CN01546A
IN2014CN01546A IN1546CHN2014A IN2014CN01546A IN 2014CN01546 A IN2014CN01546 A IN 2014CN01546A IN 1546CHN2014 A IN1546CHN2014 A IN 1546CHN2014A IN 2014CN01546 A IN2014CN01546 A IN 2014CN01546A
Authority
IN
India
Prior art keywords
pixel
phase gradient
image data
phase
energy
Prior art date
Application number
Inventor
Thomas Koehler
Jens Peter Schlomka
Original Assignee
Koninkl Philips Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninkl Philips Nv filed Critical Koninkl Philips Nv
Publication of IN2014CN01546A publication Critical patent/IN2014CN01546A/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/0002—Inspection of images, e.g. flaw detection
    • G06T7/0012—Biomedical image inspection
    • G06T7/0014—Biomedical image inspection using an image reference approach
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/50—Image enhancement or restoration by the use of more than one image, e.g. averaging, subtraction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/003—Reconstruction from projections, e.g. tomography
    • G06T11/005—Specific pre-processing for tomographic reconstruction, e.g. calibration, source positioning, rebinning, scatter correction, retrospective gating
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/408—Dual energy

Abstract

For correcting differential phase image data 52 differential phase image data 52 acquired with radiation at different energy levels is received wherein the differential phase image data 52 comprises pixels 60 each pixel 60 having a phase gradient value 62a 62b 62c for each energy level. After that an energy dependent behavior of phase gradient values 62a 62b 62c of a pixel 60 is determined and a corrected phase gradient value 68 for the pixel 60 is determined from the phase gradient values 62a 62b 62c of the pixel 60 and a model for the energy dependence of the phase gradient values 62a 62b 62c.
IN1546CHN2014 2011-08-31 2012-08-08 IN2014CN01546A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161529450P 2011-08-31 2011-08-31
PCT/IB2012/054032 WO2013030698A1 (en) 2011-08-31 2012-08-08 Differential phase contrast imaging with energy sensitive detection

Publications (1)

Publication Number Publication Date
IN2014CN01546A true IN2014CN01546A (en) 2015-05-08

Family

ID=47089091

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1546CHN2014 IN2014CN01546A (en) 2011-08-31 2012-08-08

Country Status (7)

Country Link
US (1) US9430832B2 (en)
EP (1) EP2761586B1 (en)
JP (1) JP6105586B2 (en)
CN (1) CN103918005B (en)
IN (1) IN2014CN01546A (en)
RU (1) RU2598310C2 (en)
WO (1) WO2013030698A1 (en)

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Also Published As

Publication number Publication date
US20140205057A1 (en) 2014-07-24
CN103918005B (en) 2017-06-09
JP6105586B2 (en) 2017-03-29
US9430832B2 (en) 2016-08-30
EP2761586A1 (en) 2014-08-06
JP2014525304A (en) 2014-09-29
WO2013030698A1 (en) 2013-03-07
RU2598310C2 (en) 2016-09-20
EP2761586B1 (en) 2022-10-12
CN103918005A (en) 2014-07-09
RU2014111826A (en) 2015-10-10

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