東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Development of an Optical Imaging Pl...

Minchala Remache, Meagan.

Linked to FindBook

Google Book

Amazon

博客來

Development of an Optical Imaging Platform for Assessment of Tooth Color and Whiteness.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Development of an Optical Imaging Platform for Assessment of Tooth Color and Whiteness./
Author:	Minchala Remache, Meagan.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2023,
Description:	71 p.
Notes:	Source: Masters Abstracts International, Volume: 84-12.
Contained By:	Masters Abstracts International84-12.
Subject:	Biomedical engineering. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30316844
ISBN:	9798379595920

Development of an Optical Imaging Platform for Assessment of Tooth Color and Whiteness.
Minchala Remache, Meagan.

Development of an Optical Imaging Platform for Assessment of Tooth Color and Whiteness. - Ann Arbor : ProQuest Dissertations & Theses, 2023 - 71 p.

Source: Masters Abstracts International, Volume: 84-12.

Thesis (M.S.)--Rutgers The State University of New Jersey, School of Graduate Studies, 2023.

The two most common devices to measure tooth color in dental applications are shade guides (a visual comparison) and colorimeters (a quantitative comparison). Shade guides are subjective, difficult to convert into a useful digital file type, and metrics cannot be easily converted to a standard color scale to quantify whiteness. Colorimeters can provide quantitative color measurements, but usually only at a single location on a sample. Digital color cameras offer the potential to achieve quantification of sample color mapped across an entire field of view but typically provide only three overlapping red / green / blue spectral channels. This project aims to create an optical imaging system using a new polarization-sensitive color camera to perform color and whiteness index measurements using the CIELAB color space. Values obtained from the camera setup were compared to measurements obtained from a commercial colorimeter (Optishade). The system was calibrated and validated using standard test objects (ColorChecker CG1 and VITA teeth), then tested using six bovine teeth which underwent staining and whitening. After the bovine teeth were stained by immersion in coffee, there was a mean decrease in whiteness of 3.80% and mean change in L*a*b* color of 3.16% (n = 6). After whitening with a 30% hydrogen peroxide solution, there was a mean increase in whiteness of 5.98% and mean change in L*a*b* color of 4.30%, relative to tooth color after the staining experiment. The polarization camera system gave a mean relative error of 4.91% in L* value, 30.95% in a* value, and 8.21% in b* value when comparing the staining experiment results to the Optishade values. The polarization camera system gave mean relative errors of 7.57% in L* value, 20.37% in a* value, and 6.67% in b* value when comparing the post-whitening color to the Optishade values. In summary, the methods developed in this project provide a foundation for using a new polarization-sensitive color camera for quantitative spatial mapping of tooth color and whiteness. Future studies may focus on decreasing errors in the measured L*a*b* values and using the camera's different polarization images, which can carry information about light returning from superficial and deep layers of the tooth.

ISBN: 9798379595920Subjects--Topical Terms:

535387
Biomedical engineering.
Subjects--Index Terms:

Optical imaging

Development of an Optical Imaging Platform for Assessment of Tooth Color and Whiteness.
LDR:03470nmm a2200397 4500 001 2401045
005 20241015112504.5
006 m o d
007 cr#unu||||||||
008 251215s2023 ||||||||||||||||| ||eng d
020 $a 9798379595920
035 $a (MiAaPQ)AAI30316844
035 $a AAI30316844
035 $a 2401045
040 $a MiAaPQ $c MiAaPQ
100 1 $a Minchala Remache, Meagan. $3 3771106
245 1 0 $a Development of an Optical Imaging Platform for Assessment of Tooth Color and Whiteness.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2023
300 $a 71 p.
500 $a Source: Masters Abstracts International, Volume: 84-12.
500 $a Advisor: Pierce, Mark C.
502 $a Thesis (M.S.)--Rutgers The State University of New Jersey, School of Graduate Studies, 2023.
520 $a The two most common devices to measure tooth color in dental applications are shade guides (a visual comparison) and colorimeters (a quantitative comparison). Shade guides are subjective, difficult to convert into a useful digital file type, and metrics cannot be easily converted to a standard color scale to quantify whiteness. Colorimeters can provide quantitative color measurements, but usually only at a single location on a sample. Digital color cameras offer the potential to achieve quantification of sample color mapped across an entire field of view but typically provide only three overlapping red / green / blue spectral channels. This project aims to create an optical imaging system using a new polarization-sensitive color camera to perform color and whiteness index measurements using the CIELAB color space. Values obtained from the camera setup were compared to measurements obtained from a commercial colorimeter (Optishade). The system was calibrated and validated using standard test objects (ColorChecker CG1 and VITA teeth), then tested using six bovine teeth which underwent staining and whitening. After the bovine teeth were stained by immersion in coffee, there was a mean decrease in whiteness of 3.80% and mean change in L*a*b* color of 3.16% (n = 6). After whitening with a 30% hydrogen peroxide solution, there was a mean increase in whiteness of 5.98% and mean change in L*a*b* color of 4.30%, relative to tooth color after the staining experiment. The polarization camera system gave a mean relative error of 4.91% in L* value, 30.95% in a* value, and 8.21% in b* value when comparing the staining experiment results to the Optishade values. The polarization camera system gave mean relative errors of 7.57% in L* value, 20.37% in a* value, and 6.67% in b* value when comparing the post-whitening color to the Optishade values. In summary, the methods developed in this project provide a foundation for using a new polarization-sensitive color camera for quantitative spatial mapping of tooth color and whiteness. Future studies may focus on decreasing errors in the measured L*a*b* values and using the camera's different polarization images, which can carry information about light returning from superficial and deep layers of the tooth.
590 $a School code: 0190.
650 4 $a Biomedical engineering. $3 535387
650 4 $a Dentistry. $3 828971
650 4 $a Medical imaging. $3 3172799
653 $a Optical imaging
653 $a Tooth color
653 $a Shade guides
653 $a Digital color cameras
653 $a Bovine teeth
690 $a 0541
690 $a 0574
690 $a 0567
710 2 $a Rutgers The State University of New Jersey, School of Graduate Studies. $b Biomedical Engineering. $3 3685162
773 0 $t Masters Abstracts International $g 84-12.
790 $a 0190
791 $a M.S.
792 $a 2023
793 $a English
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30316844