Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

The reconstruction of objects from incomplete projections

J C Gore, S Leeman

    Physics in Medicine and Biology
    |January 1, 1980
    PubMed
    Summary

    Incomplete fields of view distort object reconstruction in imaging. Analytical methods reveal how truncated projections from objects outside the field of view affect image accuracy.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    The nature and interpretation of BOLD signals in white matter - A review.

    Magnetic resonance imaging·2025
    Same author

    Tissue sodium content in patients with systemic lupus erythematosus: association with disease activity and markers of inflammation.

    Lupus·2020
    Same author

    Face-specific processing in the human fusiform gyrus.

    Journal of cognitive neuroscience·2013
    Same author

    Periodontal innate immune mechanisms relevant to obesity.

    Molecular oral microbiology·2013
    Same author

    Incorporation of diffusion-weighted magnetic resonance imaging data into a simple mathematical model of tumor growth.

    Physics in medicine and biology·2011
    Same author

    Using high-resolution MR imaging at 7T to evaluate the anatomy of the midbrain dopaminergic system.

    AJNR. American journal of neuroradiology·2010

    Area of Science:

    • Medical Imaging
    • Image Reconstruction
    • Computational Science

    Background:

    • Image reconstruction algorithms often assume complete projection data.
    • Incomplete data, due to limited fields of view, can introduce significant artifacts.
    • Understanding these artifacts is crucial for accurate medical imaging and object reconstruction.

    Purpose of the Study:

    • To analyze the impact of an incomplete field of view on object reconstruction.
    • To quantify the effects of projection truncation on image accuracy.
    • To provide a method for predicting reconstruction errors caused by limited fields of view.

    Main Methods:

    • Utilized an exact analytical method for reconstruction calculations.
    • Calculated the reconstruction of elemental objects (impulse and annulus) outside the field of view.
    • Investigated the effects of truncating projection data.

    Main Results:

    • Demonstrated that objects outside the field of view cause specific, predictable distortions in the reconstructed image.
    • Quantified the reconstruction errors for impulse and annulus objects.
    • Showcased how these elemental object calculations can generalize to complex objects.

    Conclusions:

    • Truncation of projection data due to incomplete fields of view significantly impacts object reconstruction.
    • The analytical method provides accurate predictions of these effects.
    • This study offers insights into mitigating artifacts in limited-view imaging.

    Related Experiment Videos