CN112370044A - Pressure sore wound measuring method and device based on machine vision - Google Patents
Pressure sore wound measuring method and device based on machine vision Download PDFInfo
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- CN112370044A CN112370044A CN202010977173.4A CN202010977173A CN112370044A CN 112370044 A CN112370044 A CN 112370044A CN 202010977173 A CN202010977173 A CN 202010977173A CN 112370044 A CN112370044 A CN 112370044A
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- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
- A61B5/1079—Measuring physical dimensions, e.g. size of the entire body or parts thereof using optical or photographic means
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
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Abstract
The invention discloses a pressure sore wound measuring method and device based on machine vision, which comprises an illumination module, an image acquisition module, an information processing module and a display module, wherein the measuring method comprises the following steps: performing primary fixation on a wound of a patient; cleaning and disinfecting the outside of the pressure sore wound; illuminating the wound of the patient by an illumination module; acquiring a digital image of the pressure sore wound through an image acquisition module; importing the digital image into an information processing module, and accurately analyzing the image of the pressure sore wound through the information processing module; and the measurement result is visually displayed to medical staff through the display module. The invention provides a light source through the illuminating module, acquires the image information of the pressure sore wound through the image acquisition module, processes and analyzes the image information through the information processing module, and visually displays the analyzed result to medical staff through the display module.
Description
Technical Field
The invention relates to the field of pressure sore wound measurement, in particular to a pressure sore wound measurement method and device based on machine vision.
Background
Machine vision is a branch of the rapid development of artificial intelligence. In brief, machine vision is to use a machine to replace human eyes for measurement and judgment. The machine vision system converts the shot target into image signals through a machine vision product (namely an image shooting device which is divided into a CMOS (complementary metal oxide semiconductor) product and a CCD (charge coupled device), transmits the image signals to a special image processing system to obtain the form information of the shot target, and converts the form information into digital signals according to the information of pixel distribution, brightness, color and the like; the image system performs various calculations on these signals to extract the features of the target, and then controls the operation of the on-site equipment according to the result of the discrimination.
Machine vision is a comprehensive technology including image processing, mechanical engineering, control, electric light source illumination, optical imaging, sensors, analog and digital video technology, computer software and hardware technology. A typical machine vision application system comprises an image capture module, a light source system, an image digitization module, a digital image processing module, an intelligent judgment decision module and a mechanical control execution module. The most basic feature of machine vision systems is to increase the flexibility and automation of production. In some dangerous working environments which are not suitable for manual operation or occasions where manual vision is difficult to meet the requirements, machine vision is often used to replace the manual vision. Meanwhile, in the process of mass repetitive industrial production, the machine vision detection method can greatly improve the production efficiency and the automation degree.
Pressure sores, also known as pressure ulcers and bedsores, are caused by tissue ulceration and necrosis due to persistent ischemia, hypoxia and malnutrition caused by long-term local tissue compression. Skin pressure sores are a common problem in rehabilitation and care. According to the literature, about 6 million people die from pressure sore union symptom every year. The pressure sore wound is measured by manpower, so that higher requirements are imposed on experience and operation of measuring personnel, and the measurement precision is difficult to ensure. The treatment efficiency and treatment effect of the pressure sore wound are improved, and a pressure sore wound measuring method and device based on machine vision are provided.
Disclosure of Invention
In order to solve the technical problems, the invention provides the following technical scheme:
the invention provides a pressure sore wound measuring method and device based on machine vision, which comprises an illumination module for providing a light source, an image acquisition module for acquiring an image, an information processing module for analyzing the image and a display module for displaying a result, wherein the measuring method comprises the following steps:
s1, primarily fixing the wound of the patient to prevent the patient from moving during the examination and measurement process;
s2, cleaning and disinfecting the outside of the pressure sore wound to avoid wound infection;
s3, the wound of the patient is illuminated through the illumination module, and the image acquisition module is ensured to acquire the image smoothly and clearly;
s4, adjusting the shooting angle of the image acquisition module to enable the shooting equipment to be over against the pressure sore wound, and acquiring the digital image of the pressure sore wound through the image acquisition module;
s5, importing the digital image into an information processing module, and accurately analyzing the image of the pressure sore wound through the information processing module;
and S6, the information processing module obtains the analysis result and then the measurement result is visually displayed to medical staff through the display module.
As a preferable technical scheme of the invention, the lighting module consists of an LED light source, a high-frequency fluorescent lamp source and a flash lamp source.
As a preferred technical solution of the present invention, the lighting module further includes an auxiliary light source for making up a lighting dead angle.
As a preferred technical solution of the present invention, the image acquisition module is composed of an image camera, a camera capture card and an image acquisition card, and the image acquisition module is electrically connected to the information processing module.
As a preferred technical solution of the present invention, the information processing module is composed of a main computer and a PLC controller, and the PLC controller is electrically connected to the main computer.
As a preferred technical solution of the present invention, the display module includes a liquid crystal display, and the display module is electrically connected to the information processing module.
As a preferred technical scheme of the invention, the device further comprises a precision table, the illumination module is fixedly connected to the side surface of the precision table, the image acquisition module, the information processing module and the display module are all arranged at the top of the precision table, and the information processing module and the display module are all fixedly connected with the precision table.
As a preferred technical scheme of the invention, the device also comprises a servo motion machine table, wherein the servo motion machine table is fixedly connected to the top surface of the precision table, and the image acquisition module is fixedly connected with the servo motion machine table.
As a preferred technical solution of the present invention, in S4, the position of the image capturing module is adjusted by the servo motion stage, so as to ensure that the image capturing module can clearly capture the image information of the pressure sore wound.
The invention has the beneficial effects that:
according to the pressure sore wound measuring method and device based on machine vision, the light source is provided through the illuminating module, the image information of the pressure sore wound is collected through the image collecting module, the image information is processed and analyzed through the information processing module, the result obtained through analysis is visually displayed to medical staff through the display module, the whole system is reasonable in layout, the conception is ingenious, and the measuring efficiency and the measuring precision of the pressure sore wound are improved.
Secondly, the detected target is converted into an image signal through the image acquisition module and is transmitted to the information processing module, the image signal is converted into a digital signal according to the information of pixel distribution, brightness, color and the like, the information processing module performs various operations on the signals to extract the characteristics of the target, such as color, area, quantity, position and length, and the result is output according to the preset allowance and other conditions, so that the automatic identification function is realized, and the accurate measurement value is obtained.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the structure of a pressure sore wound measuring method and apparatus based on machine vision according to the present invention;
FIG. 2 is a control schematic diagram of a machine vision based pressure sore wound measurement method and apparatus of the present invention;
FIG. 3 is a schematic diagram of the structure of an illumination module in the pressure sore wound measuring method and apparatus based on machine vision according to the present invention;
FIG. 4 is a schematic structural diagram of an image acquisition module in the pressure sore wound measuring method and apparatus based on machine vision according to the present invention;
FIG. 5 is a schematic structural diagram of an information processing module in the method and apparatus for pressure sore wound measurement based on machine vision according to the present invention;
in the figure: 1. a lighting module; 11. an LED light source; 12. a high frequency fluorescent light source; 13. a flash light source; 14. an auxiliary light source; 2. an image acquisition module; 21. an image camera; 22. a camera capture card; 23. an image acquisition card; 3. an information processing module; 31. a main end computer; 32. A PLC controller; 4. a display module; 5. a precision table; 6. a servo motion machine.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in fig. 1 and 2, a pressure sore wound measuring method and device based on machine vision comprises an illumination module 1 for providing a light source, an image acquisition module 2 for acquiring images, an information processing module 3 for analyzing the images and a display module 4 for displaying the results. Still include accurate table 5 and servo motion board 6, lighting module 1 fixed connection is in the side of accurate table 5, image acquisition module 2, information processing module 3 and display module 4 all set up the top at accurate table 5, and wherein information processing module 3 and display module 4 all with accurate table 5 fixed connection. The servo motion machine table 6 is fixedly connected to the top surface of the precision table 5, and the image acquisition module 2 is fixedly connected with the servo motion machine table 6. The measurement method is as follows:
s1, primarily fixing the wound of the patient to prevent the patient from moving during the examination and measurement process;
s2, cleaning and disinfecting the outside of the pressure sore wound to avoid wound infection;
s3, the wound of the patient is illuminated through the illumination module 1, and the image acquisition module 2 is ensured to acquire the image smoothly and clearly;
s4, adjusting the shooting angle of the image acquisition module 2 to enable the shooting equipment to be over against the pressure sore wound, and acquiring the digital image of the pressure sore wound through the image acquisition module 2; in the step S4, the position of the image acquisition module 2 is adjusted by the servo motion machine 6, so as to ensure that the image acquisition module 2 can clearly acquire the image information of the pressure sore wound;
s5, importing the digital image into the information processing module 3, and accurately analyzing the image of the pressure sore wound through the information processing module 3;
s6, the information processing module 3 obtains the analysis result, and the measurement result is displayed to the medical staff visually through the display module 4.
As shown in fig. 3, the lighting module 1 is composed of an LED light source 11, a high-frequency fluorescent light source 12, and a flash light source 13. The lighting module 1 further comprises an auxiliary light source 14 for making up a lighting dead angle, wherein the auxiliary light source 14 is composed of a plurality of halogen lamps distributed at equal intervals, and therefore the situation that the lighting dead angle influences the measurement of medical staff on wounds of patients can be avoided.
As shown in fig. 4, the image capturing module 2 is composed of an image camera 21, a camera capture card 22 and an image capture card 23, and the image capturing module 2 is electrically connected to the information processing module 3. The image capture card 22 is the most important core component of the PC-based dvr system, and is like the CPU of the computer, which is dedicated to the operation and operation of the whole machine.
As shown in fig. 5, the information processing module 3 is composed of a main computer 31 and a PLC controller 32, and the PLC controller 32 is electrically connected to the main computer 31; the display module 4 comprises a liquid crystal display screen, and the display module 4 is electrically connected with the information processing module 3. The main computer 31 and the PLC 32 are the control core of the whole set of system, and the display module 4 provides convenience for medical staff to visually know the measurement result.
The working principle is as follows: the invention converts the detected target into image signal through the image acquisition module 2, and transmits to the information processing module 3, and converts into digital signal according to the information of pixel distribution, brightness and color, etc., the information processing module 3 performs various operations on the signals to extract the characteristics of the target, such as color, area, quantity, position, length, and outputs the result according to the preset allowance and other conditions, thus realizing automatic identification function and further obtaining accurate measurement value.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A pressure sore wound measuring method and device based on machine vision are characterized by comprising an illumination module (1) for providing a light source, an image acquisition module (2) for acquiring images, an information processing module (3) for analyzing the images and a display module (4) for displaying results, wherein the measuring method comprises the following steps:
s1, primarily fixing the wound of the patient to prevent the patient from moving during the examination and measurement process;
s2, cleaning and disinfecting the outside of the pressure sore wound to avoid wound infection;
s3, the wound of the patient is illuminated through the illumination module (1), and the image acquisition module (2) is ensured to smoothly and clearly acquire the image;
s4, adjusting the shooting angle of the image acquisition module (2) to enable the shooting equipment to be over against the pressure sore wound, and acquiring the digital image of the pressure sore wound through the image acquisition module (2);
s5, the digital image is led into an information processing module (3), and the image of the pressure sore wound is accurately analyzed through the information processing module (3);
and S6, the information processing module (3) obtains the analysis result, and the measurement result is visually displayed to medical staff through the display module (4).
2. A machine vision based pressure sore wound measurement method and apparatus as claimed in claim 1 characterised by:
the lighting module (1) is composed of an LED light source (11), a high-frequency fluorescent lamp source (12) and a flash lamp source (13).
3. A machine vision based pressure sore wound measurement method and apparatus as claimed in claim 1 characterised by:
the lighting module (1) further comprises an auxiliary light source (14) for making up dead angles of lighting.
4. A machine vision based pressure sore wound measurement method and apparatus as claimed in claim 1 characterised by:
the image acquisition module (2) consists of an image camera (21), a camera capture card (22) and an image acquisition card (23), and the image acquisition module (2) is electrically connected with the information processing module (3).
5. A machine vision based pressure sore wound measurement method and apparatus as claimed in claim 1 characterised by:
the information processing module (3) is composed of a main-end computer (31) and a PLC (programmable logic controller) (32), and the PLC (32) is electrically connected with the main-end computer (31).
6. A machine vision based pressure sore wound measurement method and apparatus as claimed in claim 1 characterised by:
the display module (4) comprises a liquid crystal display screen, and the display module (4) is electrically connected with the information processing module (3).
7. A machine vision based pressure sore wound measurement method and apparatus as claimed in claim 1 characterised by:
still include accurate table (5), lighting module (1) fixed connection is in the side of accurate table (5), image acquisition module (2), information processing module (3) and display module (4) all set up the top at accurate table (5), and wherein information processing module (3) and display module (4) all with accurate table (5) fixed connection.
8. A machine vision based pressure sore wound measurement method and apparatus as claimed in claim 1 characterised by:
still include servo motion board (6), servo motion board (6) fixed connection is at the top surface of accurate table (5), image acquisition module (2) and servo motion board (6) fixed connection.
9. A machine vision based pressure sore wound measurement method and apparatus as claimed in claim 8 characterised by:
in S4, the position of the image acquisition module (2) is adjusted through the servo motion machine (6), and the image acquisition module (2) can clearly acquire the image information of the pressure sore wound.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010977173.4A CN112370044A (en) | 2020-09-16 | 2020-09-16 | Pressure sore wound measuring method and device based on machine vision |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010977173.4A CN112370044A (en) | 2020-09-16 | 2020-09-16 | Pressure sore wound measuring method and device based on machine vision |
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| CN202010977173.4A Pending CN112370044A (en) | 2020-09-16 | 2020-09-16 | Pressure sore wound measuring method and device based on machine vision |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110037660A (en) * | 2019-05-05 | 2019-07-23 | 复旦大学附属中山医院 | Pressure sore detection system based on near-infrared spectrum technique |
| US20190304089A1 (en) * | 2016-06-28 | 2019-10-03 | Brett L MOORE | Semi-Automated System For Real-Time Wound Image Segmentation And Photogrammetry On A Mobile Platform |
| CN110349154A (en) * | 2019-07-26 | 2019-10-18 | 浙江医院 | A kind of pressure sore wound measurement methods and device based on machine vision |
| CN111528856A (en) * | 2020-06-12 | 2020-08-14 | 戚建武 | Novel portable chronic surface of a wound measuring apparatu |
-
2020
- 2020-09-16 CN CN202010977173.4A patent/CN112370044A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190304089A1 (en) * | 2016-06-28 | 2019-10-03 | Brett L MOORE | Semi-Automated System For Real-Time Wound Image Segmentation And Photogrammetry On A Mobile Platform |
| CN110037660A (en) * | 2019-05-05 | 2019-07-23 | 复旦大学附属中山医院 | Pressure sore detection system based on near-infrared spectrum technique |
| CN110349154A (en) * | 2019-07-26 | 2019-10-18 | 浙江医院 | A kind of pressure sore wound measurement methods and device based on machine vision |
| CN111528856A (en) * | 2020-06-12 | 2020-08-14 | 戚建武 | Novel portable chronic surface of a wound measuring apparatu |
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