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Drug sensitivity paper inhibition zone size measuring method based on image

A measurement method and antibacterial zone technology, which can be used in measurement devices, image enhancement, image analysis, etc., can solve the problem of high price, achieve the effects of improving efficiency, reducing work burden, and high measurement accuracy

Active Publication Date: 2018-05-18
SOUTH CHINA AGRI UNIV
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Problems solved by technology

In recent years, some measuring instruments specially used to measure the inhibition zone have also appeared. Using these instruments is fast and accurate, but the problem is that the price is relatively high, generally more than 10,000 yuan, which is difficult for small laboratories or grassroots units with insufficient budget. , and requires a certain learning cost

Method used

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  • Drug sensitivity paper inhibition zone size measuring method based on image
  • Drug sensitivity paper inhibition zone size measuring method based on image
  • Drug sensitivity paper inhibition zone size measuring method based on image

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Embodiment Construction

[0060] The present invention will be further described below in conjunction with specific embodiment:

[0061] See attached figure 1 As shown, a kind of image-based method for measuring the size of the antibacterial zone of the drug-sensitive tablet described in the present embodiment comprises the following steps:

[0062] S1, taking the image of the plate for the drug susceptibility test under natural light;

[0063] S2, performing grayscale and Gaussian filtering on the image;

[0064] S3, determine the position of the plate and the drug-sensitive tablet;

[0065] Among them, such as image 3 As shown, the steps to determine the position of the plate are:

[0066] S3-1-1. Determine the parameters of the Hough transform:

[0067] Take the smaller of the length and width of the image as the maximum diameter of the circle where the dish is located, and then obtain the maximum radius maxRadius1, and the minimum radius minRadius1 is half of the maximum radius;

[0068] S3...

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Abstract

The invention relates to a drug sensitivity paper inhibition zone size measuring method based on images; the method uses a mobile phone or a digital camera to shoot a dish, more accurately identifiesthe inhibition zones in the image, and calculates the sizes of the inhibition zones; the process comprises the following steps: preprocessing the image, determining dish and drug sensitivity paper positions, finding candidate circles for the inhibition zones, screening the optical circle of the inhibition zones, and calculating the sizes of the inhibition zones. The method can greatly improve theinhibition zone measuring efficiency with a high measuring precision, and no large special equipment is needed, thus reducing work burdens of research personnel; the method can be promoted to basic units with incomplete equipment, thus providing conveniences for the work researches.

Description

technical field [0001] The invention relates to the technical field of image detection, in particular to an image-based method for measuring the size of the antibacterial zone of drug-sensitive tablets. Background technique [0002] Drug susceptibility test is referred to as drug susceptibility test (or drug resistance test). A microbiological test aimed at understanding the sensitivity (or tolerance) of pathogenic microorganisms to various antibiotics to guide the rational selection of antibiotics in clinical practice. If an antibiotic can inhibit and kill pathogenic bacteria in a very small dose, the pathogenic bacteria are said to be "sensitive" to the antibiotic. Otherwise, it is called "insensitive" or "drug resistant". In order to understand which antibiotics the pathogenic bacteria are sensitive to, in order to rationally use drugs and reduce blindness, drug sensitivity tests should often be carried out. The general method is: take a specimen containing pathogenic ...

Claims

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Application Information

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IPC IPC(8): G06T7/70G06T7/62G06T7/136G06T7/13G06T7/90G01N21/84
CPCG01N21/84G06T2207/20061G06T7/13G06T7/136G06T7/62G06T7/70G06T7/90
Inventor 孙坚李西明翁佳林刘雅红廖晓萍郭玉彬崔泽华
Owner SOUTH CHINA AGRI UNIV
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