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Volume: 4 | Article ID: art00067
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Assessing Gloss of Tooth using Digital Imaging
Wen Luo
Stephen Westland
Roger Ellwood
Iain Pretty
  DOI :  10.2352/CGIV.2008.4.1.art00067  Published Online :  January 2008
Abstract

The aim of this study was to assess gloss of tooth by digital photography. A gonio-imaging system (gonio - being Greek for angle) was developed to measure the gloss of human teeth in a laboratorial stage. Polarised and non-polarised images were acquired around the specular angle. The gloss component was extracted and normalised to a theoretical standard; a BRDF curve was built to describe the gloss profile of the subject. Porcelain teeth were used to test the repeatability of the system and several human lateral teeth were etched to check the system's capability to detect gloss changes. In addition to the BRDF, the area under the curve was calculated to give a quantitative value of gloss. The comparison result between the original and etched teeth can prove the validation of the gonio-imaging system for measuring tooth-gloss changes.

Journal Title : Conference on Colour in Graphics, Imaging, and Vision
Publisher Name : Society of Imaging Science and Technology
Publisher Location : 7003 Kilworth Lane, Springfield, VA 22151, USA
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 DOI 10.2352/CGIV.2008.4.1.art00067
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Wen Luo, Stephen Westland, Roger Ellwood, Iain Pretty, "Assessing Gloss of Tooth using Digital Imaging"  in Proc. IS&T CGIV 2008/MCS'08 4th European Conf. on Colour in Graphics, Imaging, and Vision 10th Int'l Symp. on Multispectral Colour Science,  2008,  pp 307 - 311,  https://doi.org/10.2352/CGIV.2008.4.1.art00067

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Copyright © Society for Imaging Science and Technology 2008
72010351
Conference on Colour in Graphics, Imaging, and Vision
conf colour graph imag vis
2158-6330
Society of Imaging Science and Technology
7003 Kilworth Lane, Springfield, VA 22151, USA
2158-6330(20080101)2008:1L.307;1-
cgiv_v2008n1/splitsection67.xml
/ist/cgiv/2008/00002008/00000001/art00067
Articles
Assessing Gloss of Tooth using Digital Imaging
LuoWen
WestlandStephen
EllwoodRoger
PrettyIain
01012008
2008
1
307
311
2008
The aim of this study was to assess gloss of tooth by digital photography. A gonio-imaging system (gonio - being Greek for angle) was developed to measure the gloss of human teeth in a laboratorial stage. Polarised and non-polarised images were acquired around the specular angle. The gloss component was extracted and normalised to a theoretical standard; a BRDF curve was built to describe the gloss profile of the subject. Porcelain teeth were used to test the repeatability of the system and several human lateral teeth were etched to check the system's capability to detect gloss changes. In addition to the BRDF, the area under the curve was calculated to give a quantitative value of gloss. The comparison result between the original and etched teeth can prove the validation of the gonio-imaging system for measuring tooth-gloss changes.