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Curative effect evaluation method based on leucoderma chromaticity

A technology for curative effect evaluation and vitiligo, applied in the field of medical image processing, can solve the problems of cumbersome and time-consuming operation of VETFa and VASI, and inapplicability of small areas of leukoplakia

Pending Publication Date: 2021-02-26
中国医学科学院皮肤病医院 +1
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Problems solved by technology

[0002] Among the existing semi-objective evaluation indicators, the advantage of VETFa is that it can evaluate the stage of vitiligo, that is, whether the disease progresses; VASI is considered to be the most suitable tool for evaluating the severity of the disease, and it can evaluate the area of ​​leukoplakia and depigmentation at the same time; but VETFa VETFa and VASI use the rule of nines or palm units in the assessment of leukoplakia area, so they are not suitable for the assessment of small areas of leukoplakia; and VETFa and VASI are cumbersome and time-consuming, which is one of the reasons why they are not widely used by dermatologists in clinical work one

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  • Curative effect evaluation method based on leucoderma chromaticity
  • Curative effect evaluation method based on leucoderma chromaticity
  • Curative effect evaluation method based on leucoderma chromaticity

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[0020] The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are only appended The directions in the figure are only used to explain and illustrate the present invention, not to limit the protection scope of the present invention.

[0021] The invention discloses a curative effect evaluation method based on the chromaticity of vitiligo. Firstly, the vitiligo area of ​​the patient before treatment is photographed, and the target detection and segmentation algorithm is used to process the photo to obtain the vitiligo area, and then the average color of the image area is calculated by using the IWA value. Then take pictures of the same position of the patient after treatment, and calculate the transformation matrix of the two pictures, so as to obtain the vitiligo area of ​​the patient after treatment, and use the IWA value to calculate the average chromaticity of the image area. The di...

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Abstract

A curative effect evaluation method based on leucoderma chromaticity comprises the steps: firstly, photographing a leucoderma area of a patient before treatment, adopting a target detection and segmentation algorithm to process a picture to obtain the leucoderma area, and then adopting an IWA value to calculate the average chromaticity of the image area; and then photographing the same position ofthe treated patient, calculating and obtaining a transformation matrix of the two photos so as to obtain a leucoderma area of the treated patient, calculating the average chromaticity of the image area by adopting the IWA value, and evaluating the effect of the leucoderma treatment scheme by using the difference between the two chromaticity values of the leucoderma area before and after treatment. The method can well reflect the chromaticity change before and after leucoderma treatment, quickly evaluate the treatment effect of leucoderma, and is effectively applied to the clinical work of dermatologists.

Description

【Technical field】 [0001] The invention relates to the field of medical image processing, and has a curative effect evaluation method based on the chromaticity of vitiligo. 【Background technique】 [0002] Among the existing semi-objective evaluation indicators, the advantage of VETFa is that it can evaluate the stage of vitiligo, that is, whether the disease progresses; VASI is considered to be the most suitable tool for evaluating the severity of the disease, and it can evaluate the area of ​​leukoplakia and depigmentation at the same time; but VETFa VETFa and VASI use the rule of nines or palm units in the assessment of leukoplakia area, so they are not suitable for the assessment of small areas of leukoplakia; and VETFa and VASI are cumbersome and time-consuming, which is one of the reasons why they are not widely used by dermatologists in clinical work one. [0003] It can be seen that it is an urgent problem in this field to provide a method for evaluating the curative ...

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Application Information

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IPC IPC(8): G16H50/30G06K9/46G06N3/04G06N3/08G06T7/11G06T7/62
CPCG16H50/30G06T7/11G06T7/62G06N3/08G06T2207/10024G06T2207/20081G06T2207/30088G06V10/56G06N3/045
Inventor 林彤郭丽芳杨寅葛一平韩童童
Owner 中国医学科学院皮肤病医院