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

Imaging Studies II: Ultrasonography01:24

Imaging Studies II: Ultrasonography

34
IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...
34
Ultrasonography01:17

Ultrasonography

4.7K
Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called...
4.7K
Echo01:06

Echo

549
The human ear cannot distinguish between two sources of sound if they happen to reach within a specific time interval, typically 0.1 seconds apart. More than this, and they are perceived as separate sources.
Imagine the sound is reflected back to the ears. Assuming that the source is very close to the human, the difference between hearing the two sounds—the emitted sound and the reflected sound—may be more than the minimum time for perceiving distinct sounds. If this is the case,...
549
Sound Waves: Interference00:53

Sound Waves: Interference

3.8K
Sound waves can be modeled either as longitudinal waves, wherein the molecules of the medium oscillate around an equilibrium position, or as pressure waves. When two identical waves from the same source superimpose on each other, the combination of two crests or two troughs results in amplitude reinforcement known as constructive interference. If two identical waves, that are initially in phase, become out of phase because of different path lengths, the combination of crests with troughs...
3.8K
Phase Contrast and Differential Interference Contrast Microscopy01:26

Phase Contrast and Differential Interference Contrast Microscopy

8.3K
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...
8.3K

You might also read

Related Articles

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

Sort by
Same author

The regulatory activities of plant microRNAs: a more dynamic perspective.

Plant physiology·2011
Same author

Complete genome sequence of the type strain Pseudomonas stutzeri CGMCC 1.1803.

Journal of bacteriology·2011
Same author

MyBioNet: interactively visualize, edit and merge biological networks on the web.

Bioinformatics (Oxford, England)·2011
Same author

Understanding lignin-degrading reactions of ligninolytic enzymes: binding affinity and interactional profile.

PloS one·2011
Same author

[The expression and significance of Notch1 in the human kidney tubular cell transdifferentiation induced by TGF-β(1);].

Xi bao yu fen zi mian yi xue za zhi = Chinese journal of cellular and molecular immunology·2011
Same author

Construction of microRNA- and microRNA*-mediated regulatory networks in plants.

RNA biology·2011

Related Experiment Video

Updated: Aug 10, 2025

Echo Particle Image Velocimetry
16:31

Echo Particle Image Velocimetry

Published on: December 27, 2012

14.8K

Secondary Interface Echoes Suppression for Immersion Ultrasonic Imaging Based on Phase Circular Statistics Vector.

Ming Chen1, Zhenghui Xiong1, Yan Jing2

  • 1Key Laboratory of Non-Destructive Testing Technology, Ministry of Education, Nanchang Hangkong University, Nanchang 330063, China.

Sensors (Basel, Switzerland)
|February 11, 2023
PubMed
Summary

A new phase circular statistics vector (PCSV) weighting method effectively suppresses secondary interface echoes in immersion ultrasonic phased array imaging. This technique enhances total focusing method (TFM) images, improving signal-to-noise ratio and lateral resolution for industrial non-destructive testing (NDT).

Keywords:
immersionphase circular statistics vectorsecondary interface echoessuppresstotal focusing method

More Related Videos

Three-dimensional Optical-resolution Photoacoustic Microscopy
08:31

Three-dimensional Optical-resolution Photoacoustic Microscopy

Published on: May 3, 2011

18.3K
Multiplexing Focused Ultrasound Stimulation with Fluorescence Microscopy
08:39

Multiplexing Focused Ultrasound Stimulation with Fluorescence Microscopy

Published on: January 7, 2019

8.3K

Related Experiment Videos

Last Updated: Aug 10, 2025

Echo Particle Image Velocimetry
16:31

Echo Particle Image Velocimetry

Published on: December 27, 2012

14.8K
Three-dimensional Optical-resolution Photoacoustic Microscopy
08:31

Three-dimensional Optical-resolution Photoacoustic Microscopy

Published on: May 3, 2011

18.3K
Multiplexing Focused Ultrasound Stimulation with Fluorescence Microscopy
08:39

Multiplexing Focused Ultrasound Stimulation with Fluorescence Microscopy

Published on: January 7, 2019

8.3K

Area of Science:

  • Non-destructive Testing (NDT)
  • Ultrasonic Imaging
  • Signal Processing

Background:

  • Immersion ultrasonic phased array imaging is crucial for industrial NDT, offering advantages in coupling and automated detection.
  • Secondary interface echoes can degrade image quality in these systems.
  • Existing methods struggle to effectively suppress these unwanted echoes without compromising image fidelity.

Purpose of the Study:

  • To propose and evaluate a novel phase circular statistics vector (PCSV) weighting method for suppressing secondary interface echoes in immersion ultrasonic phased array imaging.
  • To enhance the image quality of total focusing method (TFM) images by reducing interference from secondary interface echoes.
  • To improve signal-to-noise ratio (SNR) and lateral resolution in NDT applications.

Main Methods:

  • Development of a phase circular statistics vector (PCSV) factor matrix based on echo signal phase consistency.
  • Application of the PCSV factor matrix to weight the total focusing method (TFM) image.
  • Evaluation of the PCSV weighting method's effectiveness in suppressing secondary interface echoes and improving image quality metrics.

Main Results:

  • The PCSV weighting method effectively suppressed secondary interface echoes within a 0-40 dB range in TFM images.
  • Comparison with traditional TFM showed significant reduction in secondary interface echoes.
  • PCSV weighting also led to improvements in image quality, specifically in SNR and lateral resolution.

Conclusions:

  • The proposed PCSV weighting method is a viable technique for suppressing secondary interface echoes in immersion ultrasonic phased array imaging.
  • This method offers a significant improvement over traditional TFM by enhancing image quality and reducing unwanted echo interference.
  • The PCSV method holds promise for advancing NDT applications requiring high-resolution ultrasonic imaging.