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 Concept Videos

Interference and Diffraction02:18

Interference and Diffraction

Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
Phase Contrast and Differential Interference Contrast Microscopy01:26

Phase Contrast and Differential Interference Contrast Microscopy

Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
Atomic Absorption Spectroscopy: Interference01:25

Atomic Absorption Spectroscopy: Interference

Interference leads to systematic error in atomic absorption (AA) measurements by enhancing or diminishing the analytical signal or the background. These interferences can be grouped into three main categories: spectral interference, chemical interference, and physical interference.
Spectral interference occurs when signals from other elements or molecules overlap with the analyte signal, falsely elevating or masking the analyte's absorbance. This interference can be corrected using Zeeman,...
Imaging Biological Samples with Optical Microscopy01:18

Imaging Biological Samples with Optical Microscopy

Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
Atomic Emission Spectroscopy: Interference01:30

Atomic Emission Spectroscopy: Interference

In atomic emission spectroscopy (AES), high-temperature atomizers excite a broad range of elements and molecules that generate complex emissions from sources such as oxides, hydroxides, and flame combustion products in the flame or plasma. Several strategies can be employed to minimize spectral interferences caused by overlapping emission lines or bands. These include increasing instrument resolution, choosing alternative emission lines, optimally placing the detector in low-background regions,...
2D NMR: Heteronuclear Single-Quantum Correlation Spectroscopy (HSQC)01:19

2D NMR: Heteronuclear Single-Quantum Correlation Spectroscopy (HSQC)

Heteronuclear single-quantum correlation spectroscopy (HSQC) is a 2D NMR technique that reveals one-bond correlations between hydrogen and a heteronucleus. The HSQC experiment is similar to the heteronuclear correlation experiment (HETCOR) but is more sensitive. In the HSQC spectrum, the proton chemical shift is plotted on the horizontal F2 axis, while the 13C chemical shift is plotted on the vertical F1 axis. The corresponding proton and 13C spectra are also shown. The HSQC contour plot does...

You might also read

Related Articles

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

Sort by
Same author

Differential effects of 1 alpha, 25-dihydroxycholecalciferol and 24R,25-dihydroxycholecalciferol on the proliferation and the differentiated phenotype of rabbit craniofacial chondrocytes in primary culture.

The Journal of Osaka University Dental School·1992
Same author

Adsorption of nafamostat mesilate by hemodialysis membranes.

Artificial organs·1992
Same author

Substrate specificity and distribution of UDP-GalNAc:sialylparagloboside N-acetylgalactosaminyltransferase in the human stomach.

The Biochemical journal·1992
Same author

CPT-11 in combination with cisplatin for advanced non-small-cell lung cancer.

Journal of clinical oncology : official journal of the American Society of Clinical Oncology·1992
Same author

Increased hypothalamic somatostatin mRNA following dexamethasone administration in rats.

Acta endocrinologica·1992
Same author

[A case of jejunal vein thrombosis due to medroxyprogesterone acetate].

Gan to kagaku ryoho. Cancer & chemotherapy·1992

Related Experiment Video

Updated: Jul 7, 2026

Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
10:28

Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

Published on: July 5, 2016

All-optical subtracted joint transform correlator with a holographic interferometer.

W Yu, K Nakagawa, T Minemoto

    Applied Optics
    |February 12, 2008
    PubMed
    Summary

    A novel subtracted joint transform correlator (SJTC) eliminates digital processing for optical pattern recognition. This system achieves real-time correlation by optically subtracting reference patterns, removing spurious signals for enhanced performance.

    More Related Videos

    Uncovering Hidden Dynamics of Natural Photonic Structures Using Holographic Imaging
    05:45

    Uncovering Hidden Dynamics of Natural Photonic Structures Using Holographic Imaging

    Published on: March 31, 2022

    Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
    09:43

    Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

    Published on: March 20, 2017

    Related Experiment Videos

    Last Updated: Jul 7, 2026

    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
    10:28

    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

    Published on: July 5, 2016

    Uncovering Hidden Dynamics of Natural Photonic Structures Using Holographic Imaging
    05:45

    Uncovering Hidden Dynamics of Natural Photonic Structures Using Holographic Imaging

    Published on: March 31, 2022

    Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
    09:43

    Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

    Published on: March 20, 2017

    Area of Science:

    • Optics and Photonics
    • Optical Signal Processing
    • Pattern Recognition

    Background:

    • Joint transform correlators (JTCs) are widely used for pattern recognition.
    • Digital processing in JTCs can limit real-time applications.
    • Spurious correlation signals can arise from multiple reference patterns.

    Purpose of the Study:

    • To propose a novel subtracted joint transform correlator (SJTC) that performs all processing optically.
    • To eliminate the need for digital processing in JTCs for real-time applications.
    • To remove spurious correlation signals between multiple reference patterns.

    Main Methods:

    • An optical system utilizing a holographic interferometer, similar to a Mach-Zehnder interferometer, was employed.
    • The joint power spectrum of reference patterns was subtracted from the input image's joint power spectrum.
    • Optical parallel computations of Fourier spectra and subtraction were performed.

    Main Results:

    • The proposed SJTC demonstrated the removal of spurious correlation signals between different reference patterns.
    • Experimental results confirmed the system's shift-invariant characteristics.
    • The system exhibited good discriminability for pattern recognition tasks.

    Conclusions:

    • The novel SJTC enables real-time optical pattern recognition without digital computation.
    • The system effectively suppresses spurious correlations, improving recognition accuracy.
    • The proposed optical approach offers a promising alternative for high-speed pattern recognition applications.