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

Spatial filtering and image positive-negative reversal.

C Roychoudhuri, D Malacara

    Applied Optics
    |February 16, 2010
    PubMed
    Summary
    This summary is machine-generated.

    Related Concept Videos

    Depth Perception and Spatial Vision01:15

    Depth Perception and Spatial Vision

    Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
    Parallel Processing01:20

    Parallel Processing

    The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...

    You might also read

    Related Articles

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

    Sort by
    Same author

    Wave-front recovery from two orthogonal sheared interferograms.

    Applied optics·2010
    Same author

    Axial tolerance in the position of aberration compensators placed in a converging beam.

    Applied optics·2010
    Same author

    Path-independent phase unwrapping of subsampled phase maps.

    Applied optics·2010
    Same author

    First-order parameters for a general two-beam interferometer.

    Applied optics·2010
    Same author

    Design of lenses to project the image of a pupil in optical testing interferometers.

    Applied optics·2010
    Same author

    Sub-Nyquist null aspheric testing using a computer-stored compensator.

    Applied optics·2010

    This study presents a generalized analysis of spatial filtering for transparencies modulated by TV raster lines. Findings reveal image reversal depends on line characteristics and Fourier spectrum order, applicable to half-tone images.

    Area of Science:

    • Optics
    • Image Processing
    • Fourier Optics

    Background:

    • Spatial filtering is crucial for image manipulation.
    • Understanding the effects of raster line modulation on transparencies is complex.
    • Previous analyses often lacked a generalized approach.

    Purpose of the Study:

    • To develop a generalized analysis of spatial filtering for object transparencies modulated by TV raster lines.
    • To elucidate the factors influencing positive-negative image reversal.
    • To extend the analysis to half-tone transparencies.

    Main Methods:

    • Generalized spatial filtering analysis.
    • One-dimensional analysis of Fourier spectrum formation.
    • Investigation of modulating line properties (opaque/clear).

    Related Experiment Videos

    Main Results:

    • A unified framework for analyzing spatial filtering of raster-modulated transparencies was established.
    • Image polarity reversal was shown to depend on line nature and spectrum order.
    • The analysis successfully explained filtered image behavior for half-tone transparencies.

    Conclusions:

    • The developed generalized analysis provides a comprehensive understanding of spatial filtering effects.
    • The findings offer insights into controlling image polarity in filtered transparencies.
    • The methodology is applicable to both standard and half-tone transparencies.