Study On Illuminant Spectrum Qualifications for Collecting Tongue Condition
SONG Xian-jie1,XU Chen-jie1,LIU Xiao-gu2,ZHANG Zhi-feng2
1. Fudan University, Institute for Electric Light Sources, Shanghai 200433, China 2. College of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
Abstract:The traditional light sources in the diagnostic method of tongue collection such as daylight or even candles are easily affected by weather and environment. It isn’t favorable for doctors to obtain the accurate information of the tongue condition. The authors’ introduce the electric light sources to compensate or replace daylight to obtain stable and real tongue image and scientific results. Lighted by lamps with different radiation spectrum power distribution property, various color rendition and color temperature, the same object will indicate different colors. In this study, spectrum analysis is carried out on four fluorescent lamps and the research is based on iamge identification techniques of tongue color. Applying the methods of spectrum analysis, choose the best one in four illuminants with their specific spectrum by testing instruments and comparing with the results using several spectrum parameters and chromatic coordinates tolerance ellipses. Result showed PHILIPS YPZ220/18-3U.RR.D(with the correlative color temperature 6 500 K) lamp which has the most similar spectrum property with daylight can be used as standard lamp. The research provides the theoretic and experimental basis for choosing electric light sources to replace daylight.
[1] LI Bu-hong, XIE Shu-sen(李步洪,谢树森). Spectroscopy and Spectral Analysis(光谱学与光谱分析),2005,25(7):1083. [2] LI Jin, LI Yuan, et al(李 谨,李 媛,等). Journal of Shaanxi College of Traditional Chinese Medicine(陕西中医学院学报),2005, 25(7): 1083. [3] XU Jia-tuo, ZHANG Zhi-feng, SONG Xian-jie, et al(许家佗,张志枫,宋贤杰,等). Study on Collecting Tongue Condition Qualification in Tongue Examination Objectivity in Sinkiang(舌诊客观化研究中舌象采集条件的实验研究,第七次新疆全国中西医结合四诊研究学术会议),2004. 31. [4] XUE Jun-ao, et al(薛君敖,等). Principle and Method of the Radiation Measurement(光辐射测量原理和方法). Beijing: Measurement Press(北京:计量出版社),1981. 3. [5] Galo Corzo Luis,Penaranda Jose Antonio,Peer Peter. Machine Vision & Applications, 2005, 16(5):306. [6] ZHOU Tai-ming, et al(周太明,等). Principles and Design of Light Sources(光源原理与设计). Shanghai: Fudan University Press(上海:复旦大学出版社),2006. [7] LIU Yi-cheng(刘义成). Journal of Electron Devices(电子器件),2000, 23(1): 43. [8] Romonocoba(罗蒙诺索娃). Spectrum Analysis(光谱分析). Translated by TANG Guang-hai, TANG Guang-yu(唐光海, 唐光裕译). Beijing: China Industrial Press(北京:中国工业出版社),1963. 2. [9] WEI Bao-guo, SHEN Lan-sun, et al(卫保国, 沈兰荪,等). Chinese Journal of Medical Instrument(中国医疗器械杂志),2002,26(3):164. [10] CAI Yi-hang, SHEN Lan-sun, et al(蔡轶珩,沈兰荪,等). Electronic Science Transaction(电子学报),2006,34(4):713. [11] ZHANG Zhi-feng, WANG Zhi-guo, et al(张志枫,王志国,等). Medical Information Xi’an(医学信息(西安)),2005, 18(6): 550. [12] RUAN Qiu-yi, et al(阮秋漪, 等). Digital Image Processing(数字图像处理学). Beijing: Publishing House of Electronics Industry(北京:电子工业出版社),2001. [13] Kang K,Huang S H,Huang X W, et al. Journal of Luminescence, 2007, 122:804. [14] Srivastava Alok M,Sommerer Timothy J. Interface, 1998, 7:28. [15] JING Qi-cheng(荆其诚,等). Chroma(色度学). Beijing:Science Press(北京: 科学出版社),1979. 10. [16] Ravi J,Maya J. Journal of Applied Physics, 2000, 87(9):4107. [17] FU Dan, GUO Pei-min, et al(傅 丹,郭培民,等). China Light & Lighting(中国照明电器),2002,7:5. [18] Institute for Electric Light Sources, Fudan University(复旦大学电光源研究所). Principles and Technics of Fluorescent Lamps(荧光灯原理与工艺), 1976. 12.