VITA 3D-Master比色片数码颜色在Lab颜色空间的分布

›› 2019, Vol. 39 ›› Issue (12): 1099-1103.

VITA 3D-Master比色片数码颜色在Lab颜色空间的分布

包向军¹,²,贾爽²,王德芳²,叶荣荣²,周立英²,许小会³

1. 复旦大学附属口腔医院
2. 上海市口腔病防治院
3. 南京医科大学口腔疾病研究江苏省重点实验室，南京医科大学附属口腔医院第一门诊部

收稿日期:2019-04-29 修回日期:2019-07-03 出版日期:2019-12-28 发布日期:2019-12-31
通讯作者: 许小会 E-mail:xxhxxh1972@sina.com

Digital color distribution of VITA 3D-Master shade guide in Lab color space

Received:2019-04-29 Revised:2019-07-03 Online:2019-12-28 Published:2019-12-31
Contact: Xu Xiaohui E-mail:xxhxxh1972@sina.com

摘要/Abstract

摘要： 目的获得VITA 3D-Master比色板各色片的数码颜色在Lab颜色空间的色度分布情况。方法用Nikon D700单镜头反光数码相机在D50标准光源下，对VITA 3D-Master比色板进行拍摄，用Photoshop软件直方图读取每个比色片中1/3区域的R、G和B平均值，根据该值建立新的均匀颜色图像文件作为该比色片的平均颜色，在Eye-One Photo SG软件中建立相同颜色色块的文件，读取Lab数值，进行比较和分析。结果 VITA 3D-Master比色板的26个色片在三维Lab颜色空间中的色度分布，明度轴上呈5个层面分布；在2、3、4层面内，6个色片围绕中间色片呈非等距不规则分布。结论对VITA 3D-Master比色片的数码颜色在Lab颜色空间分布的分析，有助于提高临床工作中牙齿颜色的选择、交流和复制的准确性。

关键词: 颜色空间, 比色板, Lab, 数码颜色

Abstract: Objective To obtain the chromaticity distribution of the digital color of the VITA 3D-Master shade guide in the Lab color space. Methods The photos of a VITA 3D-Master shade guide were shot under the D50 standard light source with Nikon D700 single-lens reflex digital camera. A new uniform color image file was established according to the average value of R, G and B of the middle third area of each tab read with histogram in Photoshop software. The same uniform color file was created and the Lab values were read and analyzed in the Eye-One Photo SG software. Results The chromaticity distribution of the 26 tabs of the VITA 3D-Master shade guide in the three-dimensional Lab color space showed five levels of distribution on the brightness axis. In the 2, 3 and 4 level, the color of tabs was distributed irregularly and at different distances. Conclusion The study of digital color distribution of VITA 3D-Master shade guide in Lab color space can improve the selection, communication and replication of tooth color successfully in clinic.

Key words: Color space, Shade guide, Lab, Digital color

中图分类号:

R783.1

包向军贾爽王德芳叶荣荣周立英许小会. VITA 3D-Master比色片数码颜色在Lab颜色空间的分布[J]. , 2019, 39(12): 1099-1103.

参考文献 16

[1]	Satheesh B Haralur. Effect of Age on Tooth Shade, Skin Color and Skin-Tooth Color Interrelationship in Saudi Arabian Subpopulation[J]. Journal of International Oral Health,2015,7(8):33-36
[2]	Andres Baltzer, Vanik Kaufmann-Jinoian. The determination of the tooth colors [J]. Quintessenz Zahntech, 2004, 30(7):726–40.
[3]	Zenthofer A, Wiesberg S, Hildenbrandt A, Reinelt G, Rammelsberg P, Hassel AJ. Selecting VITA classical shades with the VITA 3D-master shade guide[J]. Int J Prosthodont. 2014, 27: 376-82.
[4]	Kuehni RG, Marcus RT. An experiment in visual scaling of small colour differences [J]. Color Res Appl, 1979, 4:83–91.
[5]	温宁, 王忠义, 施长溪, 等. Vitapan 3D-Master比色片的色空间位置测定 [J]. 实用口腔医学杂志, 2001, 17(4):322-4.
[6]	Analoui M, Papkosta E, Cochran M, Matis B. Designing visually optimal shade guides [J]. J Prosthet Dent, 2004, 92(4):371-6.
[7]	包向军, 李幸红, 高卫民, 等. 口腔修复临床比色技术的研究进展 [J]. 中国美容医学杂志, 2016, 25 (10):117-20.
[8]	Dozic A, Kleverlaan CJ, Aartman IH, et.al. Relation in color of three regions of vital human incisors [J]. Dent Mater, 2004, 20(9):832-8.
[9]	钱洁蕾, 黄婧, 陆尔奕. 牙体比色方法的现状 [J]. 国际口腔医学杂志, 2011, 38(1):87-90.
[10]	Carney MN, Johnston WM. A novel regression model from RGB image data to spectroradiometric correlates optimized for tooth colored shades [J]. J Dent, 2016, 51(8):45-8.
[11]	Jarad FD, Russell MD, Moss BW. The use of digital imaging for colour matching and communication in restorative dentistry[J]. Br Dent J, 2005, 199(1):43-9.
[12]	Hassel AJ, Zenthofer A, Corcodel N, Hildenbrandt A, Reinelt G, Wiesberg S. Determination of VITA Classical shades with the 3D-Master shade guide[J]. Acta Odontol Scand, 2013, 71: 721-6.
[13]	Tam WK, Lee HJ. Dental shade matching using a digital camera [J]. J Dent, 2012, 40 Suppl 2(12): e3-10.
[14]	Wee A, Lindsey D, Kuo S, et al. Color accuracy of commercial digital cameras for use in dentistry[J]. Dent Mater, 2006, 22(6):553-9.
[15]	Gurrea J, Gurrea M, Bruguera A, Sampaio CS, Janal M, Bonfante E, Coelho PG, Hirata R. Evaluation of Dental Shade Guide Variability Using Cross-Polarized Photography[J]. Int J Periodontics Restorative Dent. 2016, 36: e76-81.
[16]	Corciolani G, Vichi A, Louca C, Ferrari M. Color match of two different ceramic systems to selected shades of one shade guide [J]. J Prosthet Dent, 2011, 105(3):171-6.