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Journal of Chinese Integrative Medicine ›› 2011, Vol. 9 ›› Issue (12): 1333-1338.doi: 10.3736/jcim20111209

• Original Chinical Research • Previous Articles     Next Articles

Influence of brightness value of supranasal point and apex nasi on dominant wavelength and excitation purity in complexion inspection of healthy adults

Zhi-rong Zhu1, Chang-chun Zeng1(), Li Yang2, Han-ping Liu1, Song-hao Liu1,3   

  1. 1. Laboratory of Photonics Chinese Medicine, South China Normal University, Guangzhou 510631, Guangdong Province, China
    2. Department of Internal Medicine, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou 510120, Guangdong Province, China
    3. School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510631, Guangdong Province, China
  • Received:2011-07-28 Accepted:2011-09-28 Online:2011-12-20 Published:2011-12-15

Objective: In this study, to analyze the influence of the brightness value of the supranasal point and the apex nasi on their dominant wavelength and excitation purity according to the spectrocolorimetry data of the supranasal point and the apex nasi in healthy adults that were collected based on optical spectrum colorimetry.
Methods: A total of 516 healthy adults were taken as the research subjects. The brightness, dominant wavelength and excitation purity values of the supranasal point and the apex nasi during the complexion inspection of subjects were calculated. This was based on the visible reflection spectrum, and the linear correlation/regression analysis between the brightness Y value and the dominant wavelength or excitation purity value.
Results: There was no correlation between the brightness Y value and the dominant wavelength of the normal supranasal point and the apex nasi; however, there was negative correlation between the brightness Y value and the excitation purity of the normal supranasal point and apex nasi.
Conclusion: During the complexion inspection, the brightness Y value would not influence the dominant wavelength value, indicating that whiteness and/or blackness would not influence the normal individual complexion. However, the brightness Y value would influence the excitation purity of the supranasal point and the apex nasi, and the degree of saturation should be referred to as the brightness. This research provides a basic reference for diagnosing facial complexion in traditional Chinese medicine.

Key words: skin color inspection, colorimetry, brightness, spectrum analysis, diagnostics, traditional Chinese medicine

Figure 1

Scattergram of brightness Y value and dominant wavelength of normal supranasal point (A) and apex nasi (B)"

Figure 2

Scattergram of brightness Y value and excitation purity of normal supranasal point (A) and apex nasi (B)"

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