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

You might also read

Related Articles

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

Sort by
Same author

Validating a point-of-care test for Toxoplasma gondii infection in southern sea otters (Enhydra lutris nereis).

Parasitology research·2026
Same author

Evaluating the feasibility of the CIPHER metadata framework towards building a conceptual phenotype standard.

JAMIA open·2026
Same author

Ten Years of Innovation: Transforming Research in Ageing Through the Melbourne Ageing Research Collaboration (MARC).

Australasian journal on ageing·2026
Same author

Short-Term Outcomes of Laparoscopic Hiatal Hernia Repair with Consecutive Transoral Incisionless Fundoplication: A Prospective Multicenter Cohort Study.

Journal of the American College of Surgeons·2026
Same author

Applying Lean Six Sigma to improve efficiency in outpatient iodine-131 therapy: reducing process time and material waste.

BMJ open quality·2026
Same author

Repurposing insulin for Alzheimer's disease treatment: intranasal delivery of a thermoresponsive nanocarrier-based insulin formulation to the brain.

Drug delivery and translational research·2026

Related Experiment Video

Updated: Jun 29, 2025

Automated 3D Optical Coherence Tomography to Elucidate Biofilm Morphogenesis Over Large Spatial Scales
00:09

Automated 3D Optical Coherence Tomography to Elucidate Biofilm Morphogenesis Over Large Spatial Scales

Published on: August 21, 2019

6.9K

PyDAP: Automated dental OPG beam area measurement using python and raspberry Pi camera.

Michael Murray1, Jackie McCavana2, Eamon Loughman3

  • 1University of Galway, Ireland.

Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)
|March 30, 2024
PubMed
Summary

This study demonstrates a low-cost method using computer vision and a repurposed X-ray phosphor screen to accurately measure dental X-ray beam shape and area. The open-source approach offers a viable alternative for quantitative beam assessment.

Keywords:
Computer VisionDose Area ProductOpen SourceOrthopantogram (OPG)

More Related Videos

A Novel Approach to Monitoring Graft Neovascularization in the Human Gingiva
07:51

A Novel Approach to Monitoring Graft Neovascularization in the Human Gingiva

Published on: January 12, 2019

6.8K
Semi-Automated Planimetric Quantification of Dental Plaque Using an Intraoral Fluorescence Camera
09:34

Semi-Automated Planimetric Quantification of Dental Plaque Using an Intraoral Fluorescence Camera

Published on: January 27, 2023

2.0K

Related Experiment Videos

Last Updated: Jun 29, 2025

Automated 3D Optical Coherence Tomography to Elucidate Biofilm Morphogenesis Over Large Spatial Scales
00:09

Automated 3D Optical Coherence Tomography to Elucidate Biofilm Morphogenesis Over Large Spatial Scales

Published on: August 21, 2019

6.9K
A Novel Approach to Monitoring Graft Neovascularization in the Human Gingiva
07:51

A Novel Approach to Monitoring Graft Neovascularization in the Human Gingiva

Published on: January 12, 2019

6.8K
Semi-Automated Planimetric Quantification of Dental Plaque Using an Intraoral Fluorescence Camera
09:34

Semi-Automated Planimetric Quantification of Dental Plaque Using an Intraoral Fluorescence Camera

Published on: January 27, 2023

2.0K

Area of Science:

  • Medical Imaging
  • Radiography
  • Computer Vision

Background:

  • Quantitative assessment of X-ray beam shape and area is crucial in radiography.
  • Traditional methods can be expensive and complex.

Purpose of the Study:

  • To investigate the feasibility of a low-cost system for quantitative X-ray beam assessment.
  • To utilize inexpensive computer hardware, open-source computer vision, and a phosphor screen from disused computed radiography (CR) cassettes.

Main Methods:

  • A phosphor screen was integrated with a dental OPG system, and a camera captured emissions during irradiation.
  • Chessboard patterns were used for perspective correction and pixel calibration.
  • K-Means clustering defined beam area, and results were compared to GAFChromic film.

Main Results:

  • The optimized methodology, particularly in dark conditions, yielded reproducible results.
  • Beam width measurements closely matched those obtained using GAFChromic film (6.41 ± 0.09 mm vs. 6.4 ± 0.1 mm).
  • Accurate measurements for height (126 ± 0.22 mm) and area (807 ± 11 mm²) were achieved.

Conclusions:

  • A low-cost, open-source method for quantitative X-ray beam area measurement using computer vision has been successfully demonstrated.
  • The technique shows potential for widespread application with adaptable digital cameras.