[go: up one dir, main page]

Star-Lack et al., 2021 - Google Patents

3D VSHARP®, a general-purpose CBCT scatter correction tool that uses the linear Boltzmann transport equation

Star-Lack et al., 2021

Document ID
5147356982721778867
Author
Star-Lack J
Holt K
Hoelzer S
Savaliya D
Shiroma A
Shrestha S
Amusin E
Vernekohl D
Nisius D
Sun M
Publication year
Publication venue
Medical Imaging 2021: Physics of Medical Imaging

External Links

Snippet

High quality cone-beam tomography (CBCT) reconstruction requires accurately estimating and subtracting the (often) large amount of scatter from the raw projection data. Although considerable attention has been paid to scatter correction algorithm development over the …
Continue reading at www.spiedigitallibrary.org (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
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10072—Tomographic images
    • G06T2207/10104—Positron emission tomography [PET]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30004—Biomedical image processing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10072—Tomographic images
    • G06T2207/10081—Computed x-ray tomography [CT]
    • 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
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10116—X-ray image
    • 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
    • G06T5/007—Dynamic range modification
    • G06T5/008—Local, e.g. shadow enhancement
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; 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

Similar Documents

Publication Publication Date Title
US9036771B2 (en) System and method for denoising medical images adaptive to local noise
JP6472088B2 (en) Structural propagation reconstruction for spectral CT
Rinkel et al. A new method for x-ray scatter correction: first assessment on a cone-beam CT experimental setup
US10395353B2 (en) Model-based scatter in multi-modality multi-energy SPECT reconstruction
US20080253515A1 (en) Apparatus and Method for Correction of Extension of X-Ray Projections
US8885903B2 (en) Method and apparatus for statistical iterative reconstruction
US10282872B2 (en) Noise reduction in tomograms
CA2934421C (en) Target-specific dose & scatter estimation in ct images
Abdurahman et al. Beam hardening correction using cone beam consistency conditions
CN101553171B (en) Image reconfiguration device, image reconfiguration method, image reconfiguration program, ct device
Chang et al. Prior-guided metal artifact reduction for iterative X-ray computed tomography
JP7341879B2 (en) Medical image processing device, X-ray computed tomography device and program
JP2019188135A (en) X-ray beam-hardening correction in tomographic reconstruction using alvarez-macovski attenuation model
Díaz et al. A fast scatter field estimator for digital breast tomosynthesis
Treece Refinement of clinical X-ray computed tomography (CT) scans containing metal implants
Chen et al. Line integral alternating minimization algorithm for dual-energy X-ray CT image reconstruction
Kole et al. Evaluation of the ordered subset convex algorithm for cone-beam CT
WO2006070316A1 (en) Apparatus and method for artifact correction of x-ray projections
Humphries et al. Superiorized method for metal artifact reduction
Zhao et al. K-edge eliminated material decomposition method for dual-energy X-ray CT
Star-Lack et al. 3D VSHARP®, a general-purpose CBCT scatter correction tool that uses the linear Boltzmann transport equation
Pauwels et al. Exploratory research into reduction of scatter and beam hardening in industrial computed tomography using convolutional neural networks
Bertram et al. Monte-Carlo scatter correction for cone-beam computed tomography with limited scan field-of-view
Wang et al. A binary image reconstruction technique for accurate determination of the shape and location of metal objects in x-ray computed tomography
Nuyts et al. Reduction of attenuation correction artifacts in PET-CT