Int J Comput Assist Radiol Surg - Regional image analysis of the tongue color spectrum.

Tópicos

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Resumo

RPOSE: Kampo medicine (Japanese traditional herbal medicine) can identify "Mibyou" (disease-oriented state) based on visual tongue inspection by a trained physician. Surface colors of uncoated tongue provide essential features. A hyperspectral imaging system which performs regional image analysis of the tongue color spectrum was developed to automatically inspect the uncoated tongue.METHODS: Hyperspectral tongue surface images were acquired by a camera equipped with an integrating sphere. The color spectrum from 4 tongue areas--uncoated tongue, coated tongue, lip, and perioral areas--were quantified. The average spectrum of each area was determined and 4 images calculated by focusing on the differences between respective spectra; highlight, shadow, tongue coat, and lip-weighted images were calculated. The uncoated tongue area was extracted by subtraction.RESULTS: Reproducibility was evaluated by applying the camera and extraction algorithm to 44 images from human subjects. Eighty-two percentage were judged as acceptable by a Kampo medicine physician expert.CONCLUSIONS: Using a hyperspectral camera and extraction algorithm, the tongue color of the uncoated part was automatically extracted. This technique is suitable for tongue color analysis and may help non-trained users to identify "Mibyou".

Resumo Limpo

rpose kampo medicin japanes tradit herbal medicin can identifi mibyou diseaseori state base visual tongu inspect train physician surfac color uncoat tongu provid essenti featur hyperspectr imag system perform region imag analysi tongu color spectrum develop automat inspect uncoat tonguemethod hyperspectr tongu surfac imag acquir camera equip integr sphere color spectrum tongu areasunco tongu coat tongu lip perior areaswer quantifi averag spectrum area determin imag calcul focus differ respect spectra highlight shadow tongu coat lipweight imag calcul uncoat tongu area extract subtractionresult reproduc evalu appli camera extract algorithm imag human subject eightytwo percentag judg accept kampo medicin physician expertconclus use hyperspectr camera extract algorithm tongu color uncoat part automat extract techniqu suitabl tongu color analysi may help nontrain user identifi mibyou

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