[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

Dremel et al., 2017 - Google Patents

Scatter simulation and correction in computed tomography: A reconstruction-integrated approach modelling the forward projection

Dremel et al., 2017

Document ID
9447889513178411143
Author
Dremel K
Fuchs T
Publication year
Publication venue
NDT & E International

External Links

Snippet

Scattered photons lower the quality of the reconstructed images in computed tomography. Additionally to scattering in the scintillator material that lowers the resolution, object- scattered photons cause artefacts due to non-linear absorption and are difficult to simulate …
Continue reading at www.sciencedirect.com (other versions)

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; 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; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/003—Reconstruction from projections, e.g. tomography
    • G06T11/006—Inverse problem, transformation from projection-space into object-space, e.g. transform methods, back-projection, algebraic methods
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/424—Iterative
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T15/00—3D [Three Dimensional] image rendering
    • G06T15/50—Lighting effects
    • G06T15/60—Shadow generation
    • 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 not covered by G01N21/00 or G01N22/00, e.g. X-rays or neutrons
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation not covered by G01N21/00 or G01N22/00, e.g. X-rays or neutrons by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation not covered by G01N21/00 or G01N22/00, e.g. X-rays or neutrons by transmitting the radiation through the material and forming a picture
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06F—ELECTRICAL DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/50—Computer-aided design
    • G06F17/5009—Computer-aided design using simulation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration, e.g. from bit-mapped to bit-mapped creating a similar image
    • G06T5/001—Image restoration
    • G06T5/002—Denoising; Smoothing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06F—ELECTRICAL DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/40—Imaging
    • G01N2223/419—Imaging computed tomograph
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2200/00—Indexing scheme for image data processing or generation, in general

Similar Documents

Publication Publication Date Title
Duvauchelle et al. A computer code to simulate X-ray imaging techniques
Du et al. Model-based compensation for quantitative 123I brain SPECT imaging
Raupach et al. Analytical evaluation of the signal and noise propagation in x-ray differential phase-contrast computed tomography
Schmidt et al. A spectral CT method to directly estimate basis material maps from experimental photon-counting data
Zhao et al. An extended algebraic reconstruction technique (E-ART) for dual spectral CT
EP3129957B1 (en) Spectral x-ray imaging
Kazantsev et al. Joint image reconstruction method with correlative multi-channel prior for x-ray spectral computed tomography
Bonnin et al. Concept of effective atomic number and effective mass density in dual-energy X-ray computed tomography
CN106659449B (en) Quantitative dark field imaging in tomography
Zhao et al. Patient-specific scatter correction for flat-panel detector-based cone-beam CT imaging
Freud et al. Fast and robust ray casting algorithms for virtual X-ray imaging
Dhaene et al. A realistic projection simulator for laboratory based X-ray micro-CT
Bhatia et al. Scattering correction using continuously thickness-adapted kernels
Miceli et al. Monte Carlo simulations of a high-resolution X-ray CT system for industrial applications
Freud et al. A hybrid approach to simulate multiple photon scattering in X-ray imaging
Dremel et al. Scatter simulation and correction in computed tomography: A reconstruction-integrated approach modelling the forward projection
Schörner et al. Comparison between beam-stop and beam-hole array scatter correction techniques for industrial X-ray cone-beam CT
Quenot et al. Evaluation of simulators for x-ray speckle-based phase contrast imaging
Mason et al. Quantitative cone-beam CT reconstruction with polyenergetic scatter model fusion
Vidal et al. Use of fast realistic simulations on GPU to extract CAD models from microtomographic data in the presence of strong CT artefacts
Luo et al. A fast beam hardening correction method incorporated in a filtered back-projection based MAP algorithm
Hehn et al. Model-based iterative reconstruction for propagation-based phase-contrast x-ray ct including models for the source and the detector
Inanc Scattering and its role in radiography simulations
Kulkarni et al. Monte-Carlo simulation of a slot-scanning X-ray imaging system
Thomsen et al. Prediction of beam hardening artefacts in computed tomography using Monte Carlo simulations