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

Walsh function current patterns and data synthesis for electrical impedance tomography.

E J Woo1, P Hua, J G Webster

  • 1Dept. of Biomed. Eng., Kon Kuk Univ., Choongbuk.

IEEE Transactions on Medical Imaging
|January 1, 1992
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

Glucocorticoid Receptor/HCN4 Channels Interaction in Spinal Dorsal Horn Participates in the Regulation of Neuropathic Pain after Peripheral Nerve Injury in Rats.

Bulletin of experimental biology and medicine·2022
Same author

COX-2-derived prostaglandins as mediators of the deleterious effects of nicotine in chronic kidney disease.

American journal of physiology. Renal physiology·2019
Same author

Scientific Business Abstracts of the 113th Annual Meeting of the Association of Physicians of Great Britain and Ireland.

QJM : monthly journal of the Association of Physicians·2019
Same author

Are older drivers' driving patterns during an on-road driving task representative of their real-world driving patterns?

Traffic injury prevention·2019
Same author

Development and validation of a novel 13-plex PCR system for commonly used short tandem repeats in horses (Equus caballus).

Equine veterinary journal·2018
Same author

Shh Plays an Inhibitory Role in Cusp Patterning by Regulation of Sostdc1.

Journal of dental research·2018
Same journal

LLM-enhanced Neuron Segmentation and Reconstruction in Complex Mouse Brain Images.

IEEE transactions on medical imaging·2026
Same journal

Matrixed-Spectrum Decomposition Accelerated Linear Boltzmann Transport Equation Solver for Fast Scatter Correction in Multi-Spectral CT.

IEEE transactions on medical imaging·2026
Same journal

The Ritz Adjoint Method for MRI Pulse Design.

IEEE transactions on medical imaging·2026
Same journal

Physiology-guided Self-supervised Learning for Simultaneous Dual-Tracer PET Separation.

IEEE transactions on medical imaging·2026
Same journal

Informed-Exploration Reinforcement Learning for Automated Virtual Coronary Intervention Planning.

IEEE transactions on medical imaging·2026
Same journal

4D Reconstruction of Fetal Left Ventricle from Echocardiography via 2.5D Radial Segmentation and Graph-Fourier Reconstruction.

IEEE transactions on medical imaging·2026
See all related articles

This study introduces a novel data collection method using Walsh functions for injection currents. This approach simplifies hardware and enhances data quality for improved subject interior imaging.

Area of Science:

  • Electrical Impedance Tomography
  • Signal Processing

Background:

  • Current data collection methods in impedance imaging can be complex or yield suboptimal data.
  • Existing methods like sinusoidal injection require sophisticated hardware, while pulse-based methods offer limited information.

Purpose of the Study:

  • To present a new data collection method utilizing Walsh functions as injection current patterns.
  • To demonstrate the method's ability to meet optimality and single-time measurement conditions.
  • To highlight the advantages of Walsh functions over traditional injection patterns.

Main Methods:

  • Employing Walsh functions, which require only two current levels (+1 and -1), for injection current patterns.
  • Comparing Walsh function injection with diagonal/neighboring pulse patterns and sinusoidal injection.

Related Experiment Videos

  • Analyzing the spatial frequency simulation capabilities of Walsh functions.

    • Main Results:

    • Walsh function injection simplifies current source design compared to sinusoidal methods.
    • This method provides richer information about the subject's interior by simulating low and high spatial frequencies.
    • It achieves better signal-to-noise ratio (SNR) and distinguishability than pulse methods, comparable to sinusoidal methods.

    Conclusions:

    • Walsh function injection offers a simplified yet effective approach for data collection in impedance imaging.
    • The method balances the ease of pulse injection with the superior data quality of sinusoidal injection.
    • This technique enhances the distinguishability and SNR, leading to better interior imaging.