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Urine color quantification method and classification standard

A technology of color quantification and classification standards, which is applied in the direction of analyzing materials through chemical reactions and observing the influence of chemical indicators to achieve accurate quantification, accurate quantification and classification, and contributes to objectification and The effect of modern applications

Pending Publication Date: 2022-03-04
BEIJING UNIV OF CHINESE MEDICINE
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Generally speaking, there is no simple and accurate method and classification standard for objectively quantifying urine color

Method used

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  • Urine color quantification method and classification standard
  • Urine color quantification method and classification standard
  • Urine color quantification method and classification standard

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Embodiment Construction

[0036] The present invention is a urine color quantification method and classification standard. The urine sample image is uniformly photographed in the same environment, and the CIE L*a*b* color space value of the urine sample is extracted using image analysis software to quantify the urine color. Calculate the range of all samples in the L*, a*, b* color space values, select b* as the main division basis, combine the actual situation of the urine sample color, and then establish the urine color space value b* value and urine color Correspondence between categories, determination of urine color classification criteria, and use of urine specific gravity information to determine optimal cut-off values ​​for urine color categories for assessment of hydration status. By taking urine images and image analysis software to quantify the urine color, and incorporating the above classification criteria, the color categories of each urine sample to be tested can be divided and the body h...

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Abstract

The invention relates to a urine color quantification method and a classification standard. The method comprises the following steps: collecting a urine image through general digital shooting equipment, extracting a color space value of the urine image by using image analysis software so as to quantify the urine color, calculating the range of a urine sample in each color space value, selecting a single color space value as a division basis, and establishing a corresponding relationship between a urine sample color category and the color space value; and determining a urine color classification standard, and determining an optimal cut-off value of a urine color category for evaluating the hydration state by using urine specific gravity information. The substitution of the color space values of the urine sample into classification criteria can determine the color category of the urine sample and roughly assess the body hydration status of the subject. The urine color evaluation method can be used for replacing sensory evaluation of the urine color, the urine color can be quantized and classified quickly, objectively and accurately by using general digital shooting equipment and image analysis software, and meanwhile, the body hydration state of a corresponding testee can be evaluated simply and roughly.

Description

technical field [0001] The invention relates to a urine color quantification method and classification standard. Collect urine images through general digital shooting equipment, use image analysis software to extract the CIE L*a*b* color space value of urine pictures to quantify the urine color, calculate the range of urine samples in each color space value, select b The * value is used as the main division basis to establish the correspondence between the urine sample color category and the b* value, determine the urine color classification standard, and use the urine specific gravity information to determine the optimal cut-off value of the urine color category for evaluating hydration status. It can quickly, objectively and accurately quantify and classify the urine color, and at the same time, it can simply and roughly evaluate the body hydration status of the corresponding tester. Background technique [0002] Urine is a body fluid widely used in biological and clinica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
CPCG01N21/78
Inventor 刘婧楠张紫娟程雅星庞小涵赵慧辉陈建新
Owner BEIJING UNIV OF CHINESE MEDICINE
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