Blood cell analysis method based on machine vision

A blood cell analysis and machine vision technology, applied in the fields of biochemical equipment and methods, biochemical instruments, material inspection products, etc., can solve the problems of inaccuracy, high cost, unstable work, etc., to overcome the high price, low cost and high work efficiency high effect

Inactive Publication Date: 2006-09-27
李奕
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Problems solved by technology

The disadvantages of this counting method are: expensive, inaccurate, unstable work

Method used

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  • Blood cell analysis method based on machine vision
  • Blood cell analysis method based on machine vision

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Embodiment Construction

[0026] The counting step of leukocyte among the present invention is as follows:

[0027] The drawn blood samples are fused and stained to dissolve the red blood cells, and only white blood cells can be seen under the microscope. Reduce the magnification or stitch multiple images so that the number of white blood cells in the picture is between 100-200. The image is converted into an 8-bit black-and-white image. If the collected image is a black-and-white image, this step can be ignored. If it is a color image, one layer of HSL or RGB elements can be extracted to convert it into a black-and-white image;

[0028] Calculate the brightness value of the whole image and calculate the average brightness, that is, add the values ​​of all pixels and divide by the number of pixels;

[0029] Convert the image to a BINARY image, that is, an image with only two values ​​of 0 and 1, based on the average brightness, and set the pixel greater than the brightness in the image to 1, otherwise ...

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Abstract

This invention relates to a blood cell analysis method based on machine vision. Inputting the blood sample into a computer by a camera to convert the color image into the black-and-white and then the binary one and scale the binary image; calculating the area and taking count of the scaled image to obtain the number of RBC, WBC and platelet. This invention has high efficiency and accuracy with low cost.

Description

technical field [0001] The invention relates to a blood cell analysis method based on machine vision. Background technique [0002] At present, blood cell counting methods mainly include microscope manual observation counting method, resistive blood cell counting method, and laser irradiation counting method. Microscopic manual observation and counting method is to use a microscope to observe the blood samples on the blood cell counting board, and then manually count various cells to obtain various parameters. The result is more accurate, but the efficiency is low and the speed is very slow. The resistive blood cell counting method was proposed by Coulter in the United States in 1953. According to the poor conductivity of blood cells and the principle of electrical impedance, the cells in the blood are counted, and the particle size is measured to calculate the data of the routine blood test. At present, this kind of blood cell analyzer is widely used in major hospitals. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/48
CPCC12M41/36
Inventor 李奕
Owner 李奕
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