[go: up one dir, main page]

Sitek, 2008 - Google Patents

Representation of photon limited data in emission tomography using origin ensembles

Sitek, 2008

View PDF
Document ID
15846828920647642667
Author
Sitek A
Publication year
Publication venue
Physics in Medicine & Biology

External Links

Snippet

Abstract Representation and reconstruction of data obtained by emission tomography scanners are challenging due to high noise levels in the data. Typically, images obtained using tomographic measurements are represented using grids. In this work, we define …
Continue reading at pmc.ncbi.nlm.nih.gov (PDF) (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
    • G06T11/006—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
    • 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
    • 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
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/29—Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation
    • G01T1/2914—Measurement of spatial distribution of radiation
    • G01T1/2985—In depth localisation, e.g. using positron emitters; Tomographic imaging (longitudinal and transverse section imaging; apparatus for radiation diagnosis sequentially in different planes, steroscopic radiation diagnosis)
    • 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
    • G06T2207/10084—Hybrid tomography; Concurrent acquisition with multiple different tomographic modalities
    • 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
    • G06T7/00—Image analysis
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
    • 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
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06F—ELECTRICAL DIGITAL DATA PROCESSING
    • G06F19/00—Digital computing or data processing equipment or methods, specially adapted for specific applications

Similar Documents

Publication Publication Date Title
Sitek Representation of photon limited data in emission tomography using origin ensembles
Parra et al. List-mode likelihood: EM algorithm and image quality estimation demonstrated on 2-D PET
US7714291B2 (en) Method of and software for calculating a scatter estimate for tomographic scanning and system for tomographic scanning
US8000513B2 (en) System and method for 3D time of flight PET forward projection based on an exact axial inverse rebinning relation in fourier space
JP6009761B2 (en) PET data processing method, PET data processing apparatus, computer-readable recording medium, and data processing method
US8265365B2 (en) Time of flight scatter distribution estimation in positron emission tomography
US9364192B2 (en) Error estimates in quantitative functional imaging
JP6335181B2 (en) Method and apparatus for calculating a system matrix for time-of-flight (TOF) list-mode reconstruction of positron-emission tomography (PET) images
CN107635469B (en) Estimation of attenuation map based on scatter coincidence in PET system
Kösters et al. EMRECON: An expectation maximization based image reconstruction framework for emission tomography data
US20110268334A1 (en) Apparatus for Improving Image Resolution and Apparatus for Super-Resolution Photography Using Wobble Motion and Point Spread Function (PSF), in Positron Emission Tomography
US10126439B2 (en) Reconstruction with multiple photopeaks in quantitative single photon emission computed tomography
US9196063B2 (en) Super-resolution apparatus and method
US10210635B2 (en) Reconstruction quality assessment with local non-uniformity in nuclear imaging
EP4073550A1 (en) Machine learning-based scintillator response modelling for increased spatial resolution in nuclear imaging
Uribe et al. A hybrid Gibbs sampler for edge-preserving tomographic reconstruction with uncertain view angles
Brusaferri et al. Joint activity and attenuation reconstruction from multiple energy window data with photopeak scatter re-estimation in non-TOF 3-D PET
US9501819B2 (en) Super-resolution apparatus and method
US10102650B2 (en) Model-based scatter correction for non-parallel-hole collimators
US8971657B2 (en) Method for improving image quality and imaging system using the same
Fuin et al. Efficient determination of the uncertainty for the optimization of SPECT system design: A subsampled Fisher information matrix
Herraiz et al. Sensitivity estimation in time‐of‐flight list‐mode positron emission tomography
Boquet-Pujadas et al. PET rebinning with regularized density splines
Koščević et al. Extra-low-dose 2D PET imaging
Kachelrieß et al. Quality of statistical reconstruction in medical CT