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

Retrospective dynamic transmit focusing

S Freeman1, P C Li, M O'Donnell

  • 1Electrical Engineering and Computer Science Department, University of Michigan, Ann Arbor 48109, USA.

Ultrasonic Imaging
|July 1, 1995
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

Anatomical and functional characteristics of symptomatic post-TB lung disease.

The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease·2025
Same author

Stakeholder attitudes to a potential national registry for interstitial lung disease.

Irish medical journal·2025
Same author

Safety and feasibility of a virtual exercise programme for pulmonary fibrosis.

Irish medical journal·2025
Same author

Experiences of key populations in multidrug-resistant TB and HIV.

The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease·2025
Same author

Canadian Surgery Forum: Abstracts of presentations to the Annual Meetings of the Canadian Association of Bariatric Physicians and Surgeons, Canadian Association of General Surgeons, Canadian Association of Thoracic Surgeons, Canadian Hepato-Pancreato-Biliary Association, Canadian Society of Surgical Oncology, Canadian Society of Colon and Rectal Surgeons, Vancouver, BC, Sept. 17-21, 2013.

Canadian journal of surgery. Journal canadien de chirurgie·2025
Same author

[Study on the mechanism of cross-linked hyaluronic acid-dexamethasone hydrogelin post-traumatic osteoarthritis].

Zhonghua yi xue za zhi·2024
Same journal

A Multi-Task Segmentation and Classification Network Based on Ultrasound Images for Predicting the Grading of Ascites in the Abdominal Cavity.

Ultrasonic imaging·2026
Same journal

Hybrid Physics-Driven Deep Learning for Enhanced Ultrasound Image Quality and Speckle Noise Suppression.

Ultrasonic imaging·2026
Same journal

Application of Super-Resolution Ultrasound Contrast Imaging in Differentiating Benign From Malignant Breast Tumors.

Ultrasonic imaging·2026
Same journal

A Novel Preprocessing Method for Common Carotid Artery Ultrasound Images Based on Phase Asymmetry Metric and Non-subsampled Shearlet Transform.

Ultrasonic imaging·2026
Same journal

Generalized Null Subtraction Factor: A Post-Filtering Framework for Contrast Enhancement in Ultrafast Ultrasound Imaging.

Ultrasonic imaging·2026
Same journal

Fourier Beamforming of Ultrasound Signals From Chirp Transmits Using the Chirp Scaling Algorithm.

Ultrasonic imaging·2026
See all related articles

This study introduces a new filtering method to improve real-time ultrasound array imaging. The technique corrects image degradation away from the focal zone, enhancing image quality for dynamic receive focusing systems.

Area of Science:

  • Ultrasound imaging
  • Medical imaging technology
  • Signal processing

Background:

  • Real-time array systems with dynamic receive focusing suffer from image degradation outside the focal zone.
  • This degradation is caused by the fixed transmit lens pattern.
  • Improving image quality in these systems is crucial for accurate diagnosis.

Purpose of the Study:

  • To present a retrospective filtering technique to reduce image degradation in dynamic receive focusing array systems.
  • To improve the in-focus quality of transmit/receive images.
  • To propose an architecture for implementing this filtering in real-time.

Main Methods:

  • A retrospective filter is designed to deconvolve the defocused transmit pattern.
  • Filter coefficients are determined using a least-squares method.

Related Experiment Videos

  • The technique is tested on a 128-channel array system.

    • Main Results:

    • The filtering method successfully reduces image degradation away from the focal zone.
    • An in-focus transmit/receive image is produced after applying the filter.
    • Experimental results demonstrate the method's effectiveness.

    Conclusions:

    • The presented retrospective filtering technique effectively corrects image artifacts in dynamic receive focusing array systems.
    • This method enhances image quality by deconvolution, leading to clearer images.
    • A real-time architecture is proposed for practical implementation.