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

Two-wavelength method for endoscopic shape measurement by spatial phase-shifting speckle-interferometry.

Jochen Kandulla1, Björn Kemper, Sabine Knoche

  • 1Laboratory of Biophysics, University of Münster, Robert-Koch-Strasse 45, 48129 Münster, Germany. kandulla@mll.mu-luebeck.de

Applied Optics
|October 29, 2004
PubMed
Summary

This study introduces a novel two-wavelength method for accurate endoscopic topography reconstruction. The technique enhances surface measurement for rigid endoscopes using electronic-speckle-pattern interferometry, enabling detailed 3D surface mapping.

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

Largazole targets Musashi protein expression via miR-125b-5p and sensitizes triple-negative breast cancer cells to radiation.

Frontiers in pharmacology·2026
Same author

Characterization of a Single-Capture Bright-Field and Off-Axis Digital Holographic Microscope for Biological Applications.

Sensors (Basel, Switzerland)·2025
Same author

Musashi inhibitor Ro 08-2750 attenuates triple-negative breast cancer cell proliferation and migration and acts as a novel chemo- and radiosensitizer.

Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie·2025
Same author

Antioxidants Hydroxytyrosol and Thioredoxin-Mimetic Peptide CB3 Protect Irradiated Normal Tissue Cells.

Antioxidants (Basel, Switzerland)·2024
Same author

Off-axis digital lensless holographic microscopy based on spatially multiplexed interferometry.

Journal of biomedical optics·2024
Same author

Quantitative Phase Imaging as Sensitive Screening Method for Nanoparticle-Induced Cytotoxicity Assessment.

Cells·2024

Area of Science:

  • Optical Metrology
  • Biomedical Imaging
  • Surface Characterization

Background:

  • Endoscopic topography reconstruction is crucial for minimally invasive procedures.
  • Existing methods face challenges with out-of-plane sensitivity and rigid endoscope limitations.
  • Accurate 3D surface mapping in confined spaces requires advanced techniques.

Purpose of the Study:

  • To develop and validate a two-wavelength method for endoscopic topography reconstruction.
  • To adapt electronic-speckle-pattern interferometry (ESPI) for rigid endoscope imaging.
  • To address challenges posed by off-axis endoscopic illumination geometry.

Main Methods:

  • Utilized a two-wavelength approach to detect phase-difference distributions.
  • Applied electronic-speckle-pattern interferometry (ESPI) with rigid endoscopes.

Related Experiment Videos

  • Incorporated an approximation to account for off-axis endoscopic illumination geometry.

    • Main Results:

    • Successfully characterized the endoscopic surface reconstruction technique.
    • Quantified the measurement accuracy achieved by the proposed method.
    • Demonstrated applicability through topographic reconstruction of a free-form surface.

    Conclusions:

    • The two-wavelength method provides a viable solution for endoscopic topography.
    • The technique offers accurate surface measurement capabilities for rigid endoscopes.
    • This advancement has potential applications in various fields requiring detailed endoscopic surface analysis.