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A white blood cell detection method for bronchoalveolar lavage fluid smear

A technology of bronchoalveolar lavage fluid and detection method, which is applied in the direction of trocar, image data processing, instrument, etc., can solve the problems of bronchoalveolar lavage fluid smear with many impurities, complex background conditions, and affecting detection effect, etc. Low, high detection efficiency, high precision effect

Active Publication Date: 2017-06-16
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Claims
  • Application Information

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Problems solved by technology

At this stage, for the white blood cells in the blood, the method of calculating the average gradient value, then performing edge extraction and threshold segmentation is generally used to detect the white blood cells in the blood. There are many impurities in the liquid smear, and the background conditions are complex, so it is easy to be interfered by impurities or other cells and affect the detection effect

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  • A white blood cell detection method for bronchoalveolar lavage fluid smear
  • A white blood cell detection method for bronchoalveolar lavage fluid smear

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Experimental program
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Embodiment Construction

[0047] Below in conjunction with accompanying drawing, the automatic detection process of leukocyte in a kind of bronchoalveolar lavage fluid smear of the present invention is described in detail:

[0048] Step 1: Use a microscope to collect microscopic images of the bronchoalveolar lavage fluid smear;

[0049] Step 2: Grayscale the image in step 1 and convert it into a grayscale image;

[0050] Step 3: convert the grayscale image in step 2 into a binarized image;

[0051] Step 3-1: Set the gray threshold in the binarization process to be the gray threshold obtained by using the maximum inter-class variance method for the gray image;

[0052] Step 3-2: Compare the grayscale value of each pixel in the grayscale image with the grayscale threshold. If it is greater than the grayscale threshold, the grayscale of the point is set to 0. If it is smaller than the grayscale threshold, the grayscale of the point is set to 0. The degree is set to 255 to obtain a binary image;

[0053...

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Abstract

The invention is a leukocyte detection method for bronchoalveolar lavage smears, an automatic detection method for leukocytes in bronchoalveolar lavage smears, especially related to the automatic detection of white blood cells in bronchoalveolar lavage smears based on digital image processing technology method. By grayscale and binarizing the microscopic images of bronchoalveolar lavage smears collected by the microscope, and at the same time using the appearance and internal characteristics of white blood cells to screen, white blood cells are finally identified, which has the advantages of simple operation, high detection efficiency, The effect of high precision, low missed detection rate and false detection rate, and low cost.

Description

technical field [0001] The invention relates to an automatic detection method for white blood cells in bronchoalveolar lavage fluid smears, in particular to an automatic detection method for white blood cells in bronchoalveolar lavage fluid smears based on digital image processing technology. Background technique [0002] A digital image refers to a digitized image obtained through a digital imaging device, and the digital image has the characteristics of high resolution and high grayscale value. Digital image processing is to use computers to extract noise, enhance, restore, segment, extract features and other processing methods and technologies on images to obtain the image processing process required by human vision or a certain receiving system. The automatic detection of white blood cells is to use digital image processing technology to analyze and locate the position of white blood cells in the microscope, and count the characteristics of the number of white blood cell...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/60A61B10/02
Inventor 刘娟秀王强谢煜张静刘霖杨先明雷皓婷袁阳叶玉堂刘永
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA