Object Color Estimation Using Digital Camera for Noncontact Imaging Applications (Case Study: Teeth Color Estimation)

There has been a considerable effort in several fields, for objective color analysis and characterization. This paper study the problem of teeth color estimation using the most common color space in current use being the Commission International ed’ Eclairage L*a*b* parameters of the captured images...

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Main Authors: Sinan Majid Abdul satar, Mehdi Munshid shellal, Ahmed Chyad Kadhim, Zainab M. Abdul Ameer
Format: Article
Language:English
Published: Unviversity of Technology- Iraq 2013-04-01
Series:Engineering and Technology Journal
Subjects:
Online Access:https://etj.uotechnology.edu.iq/article_84168_7119c4fdc1dc243a2546f6fd9abc4585.pdf
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author Sinan Majid Abdul satar
Mehdi Munshid shellal
Ahmed Chyad Kadhim
Zainab M. Abdul Ameer
author_facet Sinan Majid Abdul satar
Mehdi Munshid shellal
Ahmed Chyad Kadhim
Zainab M. Abdul Ameer
author_sort Sinan Majid Abdul satar
collection DOAJ
description There has been a considerable effort in several fields, for objective color analysis and characterization. This paper study the problem of teeth color estimation using the most common color space in current use being the Commission International ed’ Eclairage L*a*b* parameters of the captured images were derived from Photoshop software and saved as digital shade guides. A set of ceramic teeth shade was used, Images were captured with high resolution digital camera with LED flash and the data obtained was used to calculate the L*a* and b* values, these values conventionally obtained directly from RGB space. This paper proposed a method to estimating teeth color information from acquired camera data by calculating the L*a*b*values from the device independent color space the CIEXYZ space using transformation matrix which is involve calibration and characterization parts. The results showed significant correlation between data obtained from the digital camera using calibration and characterization process with that obtained from spectrophotometer, also the result showed that the digital camera can be used for color measurements in dental clinic, where the digital imaging could be an alternative for using colorimetric or spectrophotometric methods.
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spelling doaj.art-5c63dbf4a4bd41f69e337af7d2641e492024-02-04T17:34:57ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582013-04-01314 B52953810.30684/etj.31.4B.1184168Object Color Estimation Using Digital Camera for Noncontact Imaging Applications (Case Study: Teeth Color Estimation)Sinan Majid Abdul satarMehdi Munshid shellalAhmed Chyad KadhimZainab M. Abdul AmeerThere has been a considerable effort in several fields, for objective color analysis and characterization. This paper study the problem of teeth color estimation using the most common color space in current use being the Commission International ed’ Eclairage L*a*b* parameters of the captured images were derived from Photoshop software and saved as digital shade guides. A set of ceramic teeth shade was used, Images were captured with high resolution digital camera with LED flash and the data obtained was used to calculate the L*a* and b* values, these values conventionally obtained directly from RGB space. This paper proposed a method to estimating teeth color information from acquired camera data by calculating the L*a*b*values from the device independent color space the CIEXYZ space using transformation matrix which is involve calibration and characterization parts. The results showed significant correlation between data obtained from the digital camera using calibration and characterization process with that obtained from spectrophotometer, also the result showed that the digital camera can be used for color measurements in dental clinic, where the digital imaging could be an alternative for using colorimetric or spectrophotometric methods.https://etj.uotechnology.edu.iq/article_84168_7119c4fdc1dc243a2546f6fd9abc4585.pdfdigital cameradigital shade guidecolorimeternoncontact imagingcamera calibration
spellingShingle Sinan Majid Abdul satar
Mehdi Munshid shellal
Ahmed Chyad Kadhim
Zainab M. Abdul Ameer
Object Color Estimation Using Digital Camera for Noncontact Imaging Applications (Case Study: Teeth Color Estimation)
Engineering and Technology Journal
digital camera
digital shade guide
colorimeter
noncontact imaging
camera calibration
title Object Color Estimation Using Digital Camera for Noncontact Imaging Applications (Case Study: Teeth Color Estimation)
title_full Object Color Estimation Using Digital Camera for Noncontact Imaging Applications (Case Study: Teeth Color Estimation)
title_fullStr Object Color Estimation Using Digital Camera for Noncontact Imaging Applications (Case Study: Teeth Color Estimation)
title_full_unstemmed Object Color Estimation Using Digital Camera for Noncontact Imaging Applications (Case Study: Teeth Color Estimation)
title_short Object Color Estimation Using Digital Camera for Noncontact Imaging Applications (Case Study: Teeth Color Estimation)
title_sort object color estimation using digital camera for noncontact imaging applications case study teeth color estimation
topic digital camera
digital shade guide
colorimeter
noncontact imaging
camera calibration
url https://etj.uotechnology.edu.iq/article_84168_7119c4fdc1dc243a2546f6fd9abc4585.pdf
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AT ahmedchyadkadhim objectcolorestimationusingdigitalcamerafornoncontactimagingapplicationscasestudyteethcolorestimation
AT zainabmabdulameer objectcolorestimationusingdigitalcamerafornoncontactimagingapplicationscasestudyteethcolorestimation