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

Changes in Skin Color: Clinical Perspectives01:14

Changes in Skin Color: Clinical Perspectives

2.9K
The first thing a clinician sees is the skin, so the examination of the skin should be part of any thorough physical examination. Most skin disorders are relatively benign, but a few, including melanomas, can be fatal if untreated. A couple of the more noticeable disorders, albinism and vitiligo, affect the appearance of the skin and its accessory organs.
Albinism
Albinism is a genetic disorder that affects (completely or partially) the coloring of skin, hair, and eyes. The defect is primarily...
2.9K
Assessment of Airway, Skin Color, and Use of Accessory Muscles01:30

Assessment of Airway, Skin Color, and Use of Accessory Muscles

1.3K
A thorough assessment of respiratory health is paramount in clinical settings to identify and manage respiratory distress and ensure adequate oxygenation. This article elaborates on the critical aspects of respiratory evaluation, including airway assessment, skin color examination, and the observation of accessory muscle use, which are integral to effectively diagnosing and managing patients with respiratory conditions.
Introduction
The initial evaluation of a patient's respiratory system...
1.3K
Instrument Calibration01:12

Instrument Calibration

501
Instrument calibration is essential for ensuring that instruments produce accurate and consistent results. It is vital in manufacturing, healthcare, testing laboratories, and scientific research. Calibration processes are specific to each instrument and help enhance data accuracy. Each instrument has a unique calibration process tailored to its design and function to improve data accuracy.
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
501
Glassware Calibration01:11

Glassware Calibration

1.0K
Accurate calibration of glassware, such as volumetric flasks, pipettes, and burettes, is essential to ensure accurate measurements in the analytical laboratory. Calibration helps maintain consistency across measurements and prevents errors arising from inaccurate volumes.
Volumetric flasks: Volumetric flasks are designed to prepare aqueous solutions of precise volumes accurately with a calibration line on the neck. To calibrate a volumetric flask, it is important to fill it with distilled...
1.0K
Color Vision01:24

Color Vision

1.1K
Color perception begins in the retina, the light-sensitive layer at the back of the eye. Two main theories explain how colors are seen: the trichromatic theory and the opponent-process theory. The trichromatic theory, proposed by Thomas Young in 1802 and extended by Hermann von Helmholtz in 1852, suggests that color vision is based on three types of cone receptors in the retina. These cones are sensitive to different but overlapping ranges of wavelengths corresponding to red, blue, and green.
1.1K
Pigmentation01:19

Pigmentation

3.7K
The color of the skin is influenced by a number of pigments, including melanin, carotene, and hemoglobin. Recall that melanin is produced by cells called melanocytes, which are found scattered throughout the stratum basale of the epidermis. The melanin is transferred to the keratinocytes via melanosomes.
Melanin occurs in two primary forms: eumelanin that provides black and brown pigment and pheomelanin that provides red color. Dark-skinned individuals produce more melanin than those with pale...
3.7K

You might also read

Related Articles

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

Sort by
Same author

Time of Flight Transmission Mode Ultrasound Computed Tomography With Expected Gradient and Boundary Optimization.

IEEE transactions on bio-medical engineering·2025
Same author

Guidewire path determination for intravascular applications.

Computer methods in biomechanics and biomedical engineering·2015
Same author

Compression of high-density EMG signals for trapezius and gastrocnemius muscles.

Biomedical engineering online·2014
Same author

Edge-preserving speckle texture removal by interference-based speckle filtering followed by anisotropic diffusion.

Ultrasound in medicine & biology·2012
Same author

Evaluation of plaque composition by intravascular ultrasound "virtual histology": the impact of dense calcium on the measurement of necrotic tissue.

EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology·2010
Same author

Medical Image distribution and visualization in a hospital using CORBA.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2009

Related Experiment Video

Updated: Nov 17, 2025

Medical-grade Sterilizable Target for Fluid-immersed Fetoscope Optical Distortion Calibration
07:03

Medical-grade Sterilizable Target for Fluid-immersed Fetoscope Optical Distortion Calibration

Published on: February 23, 2017

7.9K

Objective color calibration for manufacturing facial prostheses.

Yargo V Tessaro1, Sérgio S Furuie1, Denise M Nakamura2

  • 1University of São Paulo, School of Engineering, Biomedical Engineering Laboratory, São Paulo, Brazil.

Journal of Biomedical Optics
|February 14, 2021
PubMed
Summary

This study developed an improved color calibration method for facial prostheses, reducing costs and improving accuracy. The open-source solution enhances social reintegration and quality of life for patients needing facial reconstruction.

Keywords:
color correctionimage calibrationimage processingmaxillofacial prosthesisskin imaging

More Related Videos

Customizing a Cryolite Glass Prosthetic Eye
08:04

Customizing a Cryolite Glass Prosthetic Eye

Published on: October 31, 2019

11.1K
Multimodal 3D Printing of Phantoms to Simulate Biological Tissue
05:11

Multimodal 3D Printing of Phantoms to Simulate Biological Tissue

Published on: January 11, 2020

7.8K

Related Experiment Videos

Last Updated: Nov 17, 2025

Medical-grade Sterilizable Target for Fluid-immersed Fetoscope Optical Distortion Calibration
07:03

Medical-grade Sterilizable Target for Fluid-immersed Fetoscope Optical Distortion Calibration

Published on: February 23, 2017

7.9K
Customizing a Cryolite Glass Prosthetic Eye
08:04

Customizing a Cryolite Glass Prosthetic Eye

Published on: October 31, 2019

11.1K
Multimodal 3D Printing of Phantoms to Simulate Biological Tissue
05:11

Multimodal 3D Printing of Phantoms to Simulate Biological Tissue

Published on: January 11, 2020

7.8K

Area of Science:

  • Biomedical Engineering
  • Materials Science
  • Digital Imaging

Background:

  • Facial prostheses are crucial for social reintegration and quality of life.
  • Current methods in Brazil are limited by cost and accessibility.
  • Accurate skin color measurement is vital but challenging due to observer dependency and metamerism.

Purpose of the Study:

  • To develop a standardized and accurate skin color measurement methodology for facial prostheses.
  • To reduce the number of in-person consultations and associated costs.
  • To improve the overall fidelity and reliability of facial prosthesis color matching.

Main Methods:

  • Improved a physical device and computer program using the Thin-Plate Spline 3D algorithm for color calibration.
  • Implemented optional non-uniform illumination correction.
  • Integrated a colorimeter for enhanced accessibility and compared results against direct skin measurements and color references.

Main Results:

  • Reduced color difference (ΔEab*) between images from different cameras/lighting conditions from 18.81 ± 4.85 to 4.85 ± 1.72.
  • Minimized color difference with skin colorimetric readings from 14.93 ± 4.11 to 5.85 ± 1.61.
  • Confirmed that lower-cost devices do not compromise reading accuracy; the project is open-source.

Conclusions:

  • The developed methodology enables more reliable and accessible facial prosthesis manufacturing.
  • Significant reduction in color discrepancies improves final prosthesis aesthetics.
  • The open-source approach promotes wider adoption and further development in maxillofacial prosthetics.