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

Angular dependence of sampling modulation transfer function.

O Hadar, A Dogariu, G D Boreman

    Applied Optics
    |February 12, 2008
    PubMed
    Summary
    This summary is machine-generated.

    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

    A diagnostic to measure neutral-atom density in fusion-research plasmas.

    The Review of scientific instruments·2022
    Same author

    Thermal hysteresis in microtubule assembly/disassembly dynamics: The aging-induced degradation of tubulin dimers.

    Biochemistry and biophysics reports·2022
    Same author

    Probing complex dynamics with spatiotemporal coherence-gated DLS.

    Applied optics·2019
    Same author

    Passive sensing around the corner using spatial coherence.

    Nature communications·2018
    Same author

    Multimode interference dynamic light scattering.

    Optics letters·2018
    Same author

    Characterizing Viscoelastic Modulations in Biopolymer Hydrogels by Coherence-Gated Light Scattering.

    The journal of physical chemistry. B·2017
    Same journal

    Multifunctional reconfigurable terahertz metasurface based on vanadium dioxide phase transition: achieving broadband absorption and efficient polarization conversion.

    Applied optics·2026
    Same journal

    High-Q-factor electromagnetically induced transparency utilizing quasi-bound states in the continuum in an all-dielectric terahertz metasurface.

    Applied optics·2026
    Same journal

    Automated stitching interferometry for high-precision metrology of X-ray mirrors.

    Applied optics·2026
    Same journal

    Experimental demonstration of an approach to designing a metal-dielectric DBR resonant cavity structure.

    Applied optics·2026
    Same journal

    High-precision wavefront reconstruction from a single-shot interferogram using a physics-driven hybrid feature calibration network.

    Applied optics·2026
    Same journal

    Ultra-high-Q Fano resonance based on coupled topological corner states in Kagome photonic crystals.

    Applied optics·2026
    See all related articles

    This study generalizes the sampling modulation transfer function (MTF) for any sampling lattice. The research shows that sampling MTF is direction-dependent, performing best in high-density sampling directions.

    Area of Science:

    • Optics and Photonics
    • Image Processing
    • Digital Signal Processing

    Background:

    • The standard sampling modulation transfer function (MTF) is typically defined for Cartesian (x and y) sampling grids.
    • Image data acquisition often involves non-Cartesian sampling lattices, such as those found in laser printers, scene projectors, and focal-plane arrays.
    • A generalized approach is needed to accurately characterize the spatial frequency response for diverse sampling patterns.

    Purpose of the Study:

    • To generalize the concept of sampling modulation transfer function (MTF) beyond traditional x-y sampling.
    • To develop a two-dimensional sampling MTF applicable to arbitrary sampling lattices.
    • To analyze the directional dependency of sampling MTF and compare different lattice structures.

    Main Methods:

    Related Experiment Videos

    • Constructing a two-dimensional sampling MTF based on the nearest neighbor distances within a given sampling lattice.
    • Analyzing the spatial sampling density as a function of direction.
    • Comparing the spatial frequency bandwidth of hexagonal and rectangular sampling lattices.
    • Demonstrating the application of the angular-dependent sampling MTF by filtering images.

    Main Results:

    • The developed two-dimensional sampling MTF is applicable to any sampling lattice, not just Cartesian grids.
    • The sampling MTF exhibits directional dependency, being superior along directions with higher spatial sampling density.
    • Hexagonal lattices offer a more uniform spatial frequency bandwidth compared to rectangular lattices.
    • Image filtering results visually confirm the impact of angular-dependent sampling MTF.

    Conclusions:

    • The generalized two-dimensional sampling MTF provides a more accurate measure of image quality for various sampling schemes.
    • Understanding the directional characteristics of sampling MTF is crucial for optimizing image acquisition and processing systems.
    • The study highlights the advantages of hexagonal sampling for achieving more isotropic spatial frequency response.