Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Properties of Fourier Transform I

Properties of Fourier Transform I

The application of Fourier Transform properties in radio broadcasting is multifaceted, enabling significant advancements in the way signals are transmitted and received. Key areas where these properties are utilized include simultaneous multi-channel transmission, audio clip speed adjustments, live broadcast delays for different time zones, audio frequency adjustments, and signal demodulation.
In radio broadcasting, multiple audio signals often need to be transmitted simultaneously. The Fourier...

You might also read

Related Articles

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

Sort by

Same author

Optical imaging of mouse articular cartilage using the glycosaminoglycans binding property of fluorescent-labeled octaarginine.

Osteoarthritis and cartilage·2009

Same author

An effective combination of carbohydrases that enables reduction of dietary protein in broilers: importance of hemicellulase.

Poultry science·2008

Same author

Trichostatin A, a histone deacetylase inhibitor, suppresses synovial inflammation and subsequent cartilage destruction in a collagen antibody-induced arthritis mouse model.

Osteoarthritis and cartilage·2008

Same author

A mixture of pure cellulase, hemicellulase and pectinase improves broiler performance.

British poultry science·2005

Same author

Novel transdermal photodynamic therapy using ATX-S10.Na(II) induces apoptosis of synovial fibroblasts and ameliorates collagen antibody-induced arthritis in mice.

Rheumatology international·2005

Same author

Reduction of indoor formaldehyde concentrations and subjective symptoms in a gross anatomy laboratory.

Bulletin of environmental contamination and toxicology·2005

Search research articles

Related Experiment Video

Updated: Jul 8, 2026

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging

Published on: September 11, 2011

A simple method for determining the modulation transfer function in digital radiography.

H Fujita¹, D Y Tsai, T Itoh

¹Dept. of Electron. & Comput. Eng., Gifu Univ.

IEEE Transactions on Medical Imaging

|January 1, 1992

Summary

A new method accurately measures the presampling modulation transfer function (MTF) in digital radiography (DR) systems. This technique eliminates aliasing by using a finely sampled line spread function (LSF), enabling reliable MTF assessment.

More Related Videos

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition

Published on: March 11, 2021

Clinical Imaging of Microwave Mammography

Clinical Imaging of Microwave Mammography

Published on: November 14, 2025

Related Experiment Videos

Last Updated: Jul 8, 2026

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging

Published on: September 11, 2011

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition

Published on: March 11, 2021

Clinical Imaging of Microwave Mammography

Clinical Imaging of Microwave Mammography

Published on: November 14, 2025

Area of Science:

Medical Imaging Physics
Radiographic System Analysis
Digital Image Quality Assessment

Background:

Accurate measurement of the presampling modulation transfer function (MTF) is crucial for evaluating digital radiographic (DR) systems.
Existing methods may be affected by aliasing and detector unsharpness.
Understanding image quality components like unsharpness and glare is essential.

Purpose of the Study:

To develop a simple and accurate method for determining the presampling MTF in DR systems.
To eliminate aliasing artifacts in MTF calculations.
To assess the applicability of established analog system techniques to DR.

Main Methods:

Developed a method using the Fourier transform of a finely sampled line spread function (LSF).
Obtained the finely sampled LSF using a slightly angulated slit in a single exposure.
Eliminated aliasing by reducing the effective sampling distance compared to the DR system's original sampling distance.

Main Results:

The method successfully determined the presampling MTF, including detector unsharpness and sampling aperture effects.
Aliasing effects were eliminated due to the reduced effective sampling distance.
Techniques like multiple slit exposure and exponential extrapolation of the LSF tail proved applicable to DR systems.
Glare fraction was determined to estimate low-frequency drop due to glare.

Conclusions:

The proposed method provides a reliable way to measure presampling MTF in DR systems.
Established analog system measurement techniques can be adapted for DR.
The method allows for comprehensive analysis of image quality factors in digital radiography.