Skin light transparency analysis method and system based on blood vessel area grayscale and image number
A technology of blood vessel area and analysis method, applied in the field of skin light transparency analysis method and system, which can solve the problems of complex operation, difficult selection and positioning of sampling points, and high equipment cost
Active Publication Date: 2022-07-19
FUJIAN UNIV OF TECH
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[0002] During the use of skin light-transparency technology, the skin gradually turns from a turbid state to a transparent state, and the subcutaneous blood vessels gradually become clear. During this process, professional laser light sources, OCT, cameras and Spectrometer to analyze the skin image or the combination of reflected and transmitted light on the skin, the equipment is not only expensive but also difficult to implement
[0003] In order to solve the shortcomings of high equipment cost and complicated operation in the process of measuring the degree of skin light transparency, the invention patent "A method and device for analyzing the degree of skin light transparency based on image grayscale" establishes an image-based method under white light irradiation. Analysis method of the light transparency degree of the midpoint and its ROI area
However, this method has its shortcomings. It can only describe the change of skin transparency from the sampling point. The selection and positioning of the sampling point is not easy to determine at different times. At the same time, it cannot describe the skin transparency of the blood vessel area in the whole picture as a whole. exactly how
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[0048] like Figure 1-8 As shown in the first example, the present invention takes the skin where the blood vessel area is located as an analysis element, and analyzes the change of the skin transparency effect in this area from the change of the two characteristic parameters, the change of the gray mean value of the blood vessel area and the change of the number of pixels contained. like figure 1 As shown, the present invention discloses a skin light transparency analysis method based on the grayscale and image number of the blood vessel area, which includes the following steps:
[0049] Step 1, obtain a color image of the light-transparent skin sample in real time through an image acquisition device,
[0050] Step 2, select a region of interest from the color image and convert the color image into a grayscale image;
[0051] Select the ROI (Region of Interest) of the skin sample, the number of pixels is MxN, M and N are the number of pixels of the width and height of the R...
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The invention discloses a skin light transparency analysis method and system based on the gray level and image number of the blood vessel area. For skin images and similar situations, the change of the gray mean value of the blood vessel area is used to reflect the light transparency degree trend. For skin images and similar situations, after normalizing the gray value of the image, the change in the percentage (relative value) of the mean gray value of the blood vessel area was used to reflect the trend of light transparency. For skin images and similar situations, the change in the number of pixels in the blood vessel area is used to reflect the trend of light transparency. The invention takes the skin where the blood vessel area is located as an analysis element, and analyzes the change of the skin transparency effect in this area from the change of two characteristic parameters, the change of the gray mean value of the blood vessel area and the change of the number of pixels contained.
Description
technical field [0001] The invention relates to the technical field of image processing, in particular to a skin light transparency analysis method and system based on the grayscale and image number of a blood vessel area. Background technique [0002] During the use of the skin light-transparency technology, the skin gradually changes from a cloudy state to a transparent state, and the subcutaneous blood vessels gradually become clear. Spectrometers to analyze skin images or the combination of reflected and transmitted light on the skin are expensive and difficult to implement. [0003] In order to solve the shortcomings of high cost of equipment and complicated operation in the measurement of skin light transparency, the invention patent "A method and device for skin light transparency analysis based on image grayscale" establishes an image-based method under white light irradiation. Analysis method of the degree of light transparency of the midpoint and its ROI area. Ho...
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IPC IPC(8): G06T5/00G06T7/00G06T7/11G06T7/136G16H30/00
CPCG06T7/0012G06T7/11G06T7/136G16H30/00G06T2207/10024G06T2207/30101G06T5/73
Inventor 何华斌吴忠强
Owner FUJIAN UNIV OF TECH