CN112819770B - Iodine contrast agent allergy monitoring method and system - Google Patents

Iodine contrast agent allergy monitoring method and system Download PDF

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CN112819770B
CN112819770B CN202110105367.XA CN202110105367A CN112819770B CN 112819770 B CN112819770 B CN 112819770B CN 202110105367 A CN202110105367 A CN 202110105367A CN 112819770 B CN112819770 B CN 112819770B
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urticaria
monitoring
coordinates
monitored object
space
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CN112819770A (en
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胡晓飞
甄志铭
刘赫
郑雅兰
陈家飞
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First Affiliated Hospital of Army Medical University
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First Affiliated Hospital of Army Medical University
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00Image analysis
    • G06T7/0002Inspection of images, e.g. flaw detection
    • G06T7/0012Biomedical image inspection
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A61B5/0062Arrangements for scanning
    • A61B5/0064Body surface scanning
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A61B5/0077Devices for viewing the surface of the body, e.g. camera, magnifying lens
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/103Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/1032Determining colour for diagnostic purposes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/44Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
    • A61B5/441Skin evaluation, e.g. for skin disorder diagnosis
    • A61B5/445Evaluating skin irritation or skin trauma, e.g. rash, eczema, wound, bed sore
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/90Identification means for patients or instruments, e.g. tags
    • A61B90/98Identification means for patients or instruments, e.g. tags using electromagnetic means, e.g. transponders
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00Image analysis
    • G06T7/70Determining position or orientation of objects or cameras
    • G06T7/73Determining position or orientation of objects or cameras using feature-based methods
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00Arrangements for image or video recognition or understanding
    • G06V10/20Image preprocessing
    • G06V10/25Determination of region of interest [ROI] or a volume of interest [VOI]
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00Indexing scheme for image analysis or image enhancement
    • G06T2207/30Subject of image; Context of image processing
    • G06T2207/30004Biomedical image processing
    • G06T2207/30088Skin; Dermal

Abstract

The invention discloses an iodine contrast agent allergy monitoring method and system, wherein the system comprises an identification positioning system, a binocular vision positioning system and a processing terminal, firstly, a monitored object can be identified through the identification positioning system, and the space coordinates of each characteristic point on the body of the monitored object are positioned; then, acquiring monitoring images of corresponding areas through a binocular vision positioning system according to the space coordinates of all the characteristic points, and identifying and positioning position coordinates of urticaria caused by allergy of an iodine contrast agent in the monitoring images; and finally, the processing terminal can determine the position where the urticaria occurs through the position coordinates of the urticaria and the space coordinates of each characteristic point. According to the invention, the position coordinates of the monitored object can be rapidly identified and positioned through the identification positioning system, the binocular vision positioning system collects the monitoring images, the positioning result of the identification positioning system can be utilized to collect the monitoring images of the monitored object for positioning and identification of urticaria, and the anaphylactic reaction condition of the monitored object is determined.

Description

Iodine contrast agent allergy monitoring method and system
Technical Field
The invention relates to the technical field of other methods or instruments for diagnosis, in particular to an iodine contrast agent allergy monitoring method and system.
Background
The iodine contrast agent is widely applied to CT examination, angiography and the like in clinic, the usage amount of the iodine contrast agent is more than 7500 ten thousand every year all over the world, and the importance of the iodine contrast agent on clinic can be seen. However, adverse reactions are inevitable, and related allergic reactions are mild to moderate, and severe reactions and lethal reactions are rare. Nevertheless, the clinician must be familiar with the risk factors for allergy with iodine contrast agents, precautions, etc., to avoid as much harm as possible to the patient.
The clinical manifestations of mild anaphylaxis are mainly urticaria, pruritus, urticaria, nasal congestion, runny nose, nausea, vomiting, mild blood pressure rise, flushing skin, fever, chills, anxiety and self-limiting vasovagal reaction. The clinical manifestations of moderate anaphylaxis are mainly diffuse urticaria, pruritus, urticaria, facial/laryngeal edema, mild bronchospasm, severe nausea and vomiting, severe hypertension and easily controlled vaso-vagal nerve reaction.
At present, the iodine contrast agent anaphylactic reaction is mainly monitored in a manual mode clinically, the monitoring is inconvenient, and the tracking and monitoring are difficult to carry out, so that the optimal treatment period can be missed, and the patient is greatly injured. Therefore, there is a need for an intelligent monitoring technique for follow-up monitoring of patients injected with iodine contrast agents.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an iodine contrast agent allergy monitoring method and system, which can track the position coordinates of a monitored object in real time, identify and position the position of urticaria, caused by iodine contrast agent allergy, on the body of the monitored object, and facilitate a doctor to determine the anaphylactic reaction degree of the monitored object.
In a first aspect, there is provided a method for monitoring allergy to iodine contrast agent, comprising:
identifying a monitored object through an identification and positioning system, and positioning the space coordinates of each characteristic point on the body of the monitored object;
acquiring monitoring images of corresponding areas through a binocular vision positioning system according to the space coordinates of all the feature points, and identifying and positioning position coordinates of urticaria caused by allergy of an iodine contrast agent in the monitoring images;
and determining the position where the urticaria occurs according to the position coordinates of the urticaria and the space coordinates of each characteristic point.
With reference to the first aspect, in a first implementable manner of the first aspect, the identification positioning system includes a radio frequency identification positioning system.
With reference to the first aspect, in a second implementable manner of the first aspect, acquiring, by a binocular vision positioning system, a monitoring image of a corresponding region according to spatial coordinates of all the feature points includes:
determining the coordinates of the central point of the body of the monitored object according to the space coordinates of the characteristic points;
matching the coordinates of the central point with the coordinates of the monitoring area of each binocular camera in the binocular vision positioning system, and determining the binocular camera corresponding to the corresponding area;
and acquiring the monitoring image through a binocular camera corresponding to the corresponding area.
With reference to the first aspect, in a third implementable manner of the first aspect, the identifying all urticaria resulting from iodine contrast allergy in the monitored image comprises:
converting the monitoring image from an RGB space to an HSV space;
and identifying the urticaria through the corresponding HSV color interval.
With reference to the first aspect, in a fourth implementable manner of the first aspect, determining the location coordinates of the urticaria comprises:
extracting pixel images corresponding to the urticaria from the left image and the right image of the monitoring image respectively through the identification result;
converting the extracted pixel image into a gray image and extracting the outline to obtain the outlines of all the urticaria in the left image and the right image;
matching the corresponding contours of the left image and the right image to determine the contour corresponding to the same urticaria;
and determining the position coordinate of each urticaria through the coordinates of the central points of the corresponding contours respectively based on preset parameters of the binocular vision positioning system.
With reference to the first aspect, in a fifth implementable manner of the first aspect, the determining, by the position coordinates of the urticaria and the spatial coordinates of each feature point, a location where the urticaria occurs includes:
determining and monitoring the space range coordinates of each part of the corresponding body according to the space coordinates of each characteristic point;
and matching the position coordinates of the urticaria with the space range coordinates of each part to determine the part where the urticaria occurs.
In a second aspect, there is provided an iodine contrast agent allergy monitoring system comprising:
the identification positioning system is used for identifying the monitored object and positioning the space coordinates of each characteristic point on the body of the monitored object;
the binocular vision positioning system is used for acquiring monitoring images of corresponding areas according to the space coordinates of the characteristic points and identifying and positioning position coordinates of urticaria caused by allergy of an iodine contrast agent in the monitoring images;
and the processing terminal is used for determining the position where the urticaria occurs through the position coordinates of the urticaria and the space coordinates of each characteristic point.
With reference to the second aspect, in a first implementable manner of the second aspect, the processing terminal is further configured to count the total number of the sites where the urticaria arises, and determine the degree of iodine contrast agent allergy of the monitored subject according to the total number.
With reference to the second aspect, in a second implementable manner of the second aspect, the identification and location system includes:
the RFID tags are worn at various characteristic points on the body of the monitored object and send out corresponding identification signals;
the RFID readers are used for acquiring identification signals sent by all the RFID tags;
and the positioning terminal is used for identifying the monitored object according to the identification signal acquired by the RFID reader and positioning the space coordinates of each characteristic point on the body of the monitored object.
With reference to the second aspect, in a third implementable manner of the second aspect, the binocular vision positioning system comprises:
the binocular video cameras are used for acquiring monitoring images of corresponding monitoring areas;
and the monitoring terminal is arranged in the range coordinates of the monitoring areas of all the binocular cameras and used for acquiring the space coordinates of each characteristic point to determine the position coordinates of the monitored object and matching the coordinates of the central point with the range coordinates corresponding to each binocular camera so as to acquire the monitoring image of the area where the monitored object is located and identify and position the position coordinates of urticaria caused by iodine contrast agent allergy.
Has the beneficial effects that: the position coordinates of the monitoring object can be quickly identified and positioned through the identification and positioning system, the binocular vision positioning system can quickly track and acquire the monitoring image of the monitoring object through the positioning result of the identification and positioning system to carry out urticaria positioning identification, and the anaphylactic reaction condition of the monitoring object is determined.
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In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.
Fig. 1 is a flowchart of a monitoring method according to an embodiment of the present invention;
FIG. 2 is a flow chart of collecting a monitoring image according to an embodiment of the present invention;
fig. 3 is a flowchart of determining a position coordinate of urticaria according to an embodiment of the present invention;
fig. 4 is a system block diagram of a monitoring system according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
A flow chart of an iodine contrast agent allergy monitoring method as shown in fig. 1, the monitoring method comprising:
step 1, identifying a monitored object through an identification and positioning system, and positioning the space coordinates of each characteristic point on the body of the monitored object;
step 2, collecting monitoring images of corresponding areas through a binocular vision positioning system according to the space coordinates of all the feature points, and identifying and positioning position coordinates of urticaria caused by iodine contrast agent allergy in the monitoring images;
and 3, determining the position where the urticaria occurs according to the position coordinates of the urticaria and the space coordinates of each characteristic point.
Specifically, the degree of anaphylaxis of the monitored object can be determined by monitoring the number of distribution parts of the urticaria on the body because the anaphylaxis of the iodine contrast agent causes urticaria, the number of human body parts generating urticaria is small when the anaphylaxis is mild, and the number of human body parts generating urticaria when the anaphylaxis is moderate.
Urticaria can form red lumps on human skin, and can be identified by an image identification method. Because hospital staff is more and other symptoms can cause urticaria, if only urticaria is identified, other non-iodine contrast agent allergic patients can be introduced into identification data, and the efficiency and accuracy of monitoring the allergy to the iodine contrast agent are affected. In order to improve the accuracy and efficiency of the identification result, firstly, each characteristic point of the body of the monitored object can be identified and positioned in real time through an identification and positioning system so as to position the position area of the monitored object. The monitored object is a patient injected with iodine contrast agent, and can be identified by image identification or other identification methods.
Then, the monitoring image of the position area where the monitoring object is located can be collected through a binocular vision positioning system according to the positioning result, whether the urticaria occurs on the body of the monitoring object can be identified through an existing image identification algorithm, and when the urticaria occurs, the monitoring image can be analyzed through the existing binocular vision positioning algorithm, so that the position coordinate generated by the urticaria can be determined. And finally, determining the part where the urticaria occurs by combining the position coordinates and the position coordinates of each characteristic point of the body of the monitoring object.
In this embodiment, preferably, the identification and location system includes a radio frequency identification and location system. The identification positioning system can adopt the existing radio frequency identification positioning system. The RFID tags of the RFID positioning system may be worn at various characteristic points on the body of the monitored subject, such as the forehead, wrist, neck, chest, ankle, elbow, knee, etc. of the monitored subject. The RFID tags can send out identification signals corresponding to the characteristic points and the monitored object, a plurality of RFID readers arranged by a radio frequency identification positioning system can receive the identification signals and position the coordinates of all the RFID tags through the received identification signals, and the identification positioning system can determine the space coordinates of each characteristic point on the body of the monitored object by combining the coordinates of all the RFID tags corresponding to the monitored object. The radio frequency identification positioning system can not be influenced by sight lines, and is convenient for accurately positioning the space coordinates of each characteristic point under the condition of a complex terrain position of a hospital.
In this embodiment, preferably, as shown in fig. 2, acquiring the monitoring image of the corresponding area by the binocular vision positioning system according to the spatial coordinates of all the feature points includes:
step 1-1, determining the central coordinate of the body of the monitored object according to the space coordinate of each characteristic point;
step 1-2, matching the center coordinates with the monitoring area coordinates of each binocular camera in the binocular vision positioning system, and determining the binocular camera corresponding to the corresponding area;
and 1-3, acquiring the monitoring image through a binocular camera corresponding to the corresponding area.
Specifically, since the posture of the monitoring object is irregular, a large error may occur if the location area where the monitoring object is located by a single feature point, and therefore, first, the center coordinates of the area surrounded by these feature points, that is, the location coordinates of the monitoring object may be determined by the spatial coordinates of all the feature points. And then, matching the coordinates of the central point with the coordinates of a monitoring area preset by each binocular camera in the binocular vision positioning system, so as to determine the monitoring area corresponding to the central coordinates, namely the position area where the monitoring object is located, and determining the position area where the monitoring object is located through the space coordinates of all the characteristic points, so that the error can be reduced. And finally, acquiring the monitoring image of the monitored object by acquiring the binocular camera of the monitoring area corresponding to the central coordinate.
In this embodiment, preferably, the identifying all urticaria caused by allergy to iodine contrast agent in the monitored image includes:
converting the monitoring image from an RGB space to an HSV space;
and identifying the urticaria through corresponding HSV color intervals.
Specifically, the color of the urticaria is obviously different from the color of the skin of the human body, so that the monitoring image can be converted from an RGB space to an HSV space, then the converted monitoring image is identified according to a preset HSV color interval corresponding to the urticaria, and if the converted monitoring image has the color belonging to the HSV color interval, the fact that the urticaria appears on the body of the monitored object can be judged.
In this embodiment, preferably, as shown in fig. 3, the determining the position coordinates of the urticaria includes:
2-1, extracting pixel images corresponding to the urticaria from a left image and a right image of the monitored image respectively through the identification result;
2-2, converting the extracted pixel image into a gray image and extracting the outline to obtain the outlines of all the urticaria in the left image and the right image;
2-3, matching the corresponding contours of the left image and the right image to determine the contour corresponding to the same urticaria;
and 2-4, respectively determining the position coordinate of each urticaria through the center point coordinate of the corresponding contour based on the preset parameters of the binocular vision positioning system.
Specifically, firstly, the H value, S value and V value of each pixel point in the left image and the right image collected by the binocular camera may be compared with the HSV color interval, and if the H value, S value and V value of a pixel point are in the HSV color interval, the pixel point is extracted, and the above steps are repeated until all the pixel points are compared, and all the pixel points belonging to the HSV color interval are combined into the pixel image, that is, the pixel image corresponding to urticaria.
And then, converting the pixel image into a gray image, and extracting the outline after carrying out Gaussian noise reduction on the gray image to obtain the outlines corresponding to all the urticaria in the left image and the right image. In order to improve the accuracy of urticaria identification, the similarity between the extracted contour and the preset urticaria contour can be calculated, if the similarity is higher, the extracted contour can be determined to belong to urticaria, otherwise, the extracted contour does not belong to urticaria, and the contour which does not belong to urticaria can be removed.
Then, by calculating the similarity between each contour corresponding to the left image and each contour corresponding to the right image, if the similarity between the two contours is high, it can be determined that 2 contours belong to the same urticaria. When the similarity between the contours of the two contours is determined, the existing calculation function can be adopted to calculate the hu similarity of the two contours, so that the contours of all urticaria generated on the body of the monitored object in the left image and the right image can be extracted at one time.
And finally, fitting the 2 contours respectively to obtain the minimum fitting periphery, so that the coordinates of the central point of the 2 contours are determined respectively, and the three-dimensional space coordinates of the central point, namely the position coordinates of the urticaria can be determined by combining the preset internal parameters and external parameters of the binocular camera and adopting the existing binocular vision positioning algorithm.
In this embodiment, preferably, the determining the location where urticaria occurs through the position coordinates of the urticaria and the space coordinates of the feature points includes:
determining and monitoring the space range coordinates of each part of the corresponding body according to the space coordinates of each characteristic point;
and matching the position coordinates of the urticaria with the space range coordinates of each part to determine the part where the urticaria occurs.
Specifically, because the identification signal sent by the RFID tag includes data corresponding to a human body part, each part of the human body, such as a wrist, an elbow, a chest, etc., can be determined through the corresponding data, and the spatial range coordinates of the arm of the monitored object can be fitted by combining the spatial coordinates of these feature points of the wrist, the elbow, and the chest. And matching the position coordinates with the space range coordinates of each part of the monitored object, so as to determine the part where the urticaria occurs.
A system block diagram of an iodine contrast allergy monitoring system as shown in fig. 4, the monitoring system comprising:
the identification positioning system is used for identifying the monitored object and positioning the space coordinates of each characteristic point on the body of the monitored object;
the binocular vision positioning system is used for acquiring monitoring images of corresponding areas according to the space coordinates of the characteristic points and identifying and positioning position coordinates of urticaria caused by allergy of iodine contrast agents in the monitoring images;
and the processing terminal is used for determining the position where the urticaria occurs through the position coordinates of the urticaria and the space coordinates of each characteristic point.
Specifically, the identification and positioning system can identify and position the spatial coordinates of each characteristic point of the body of the monitored object in real time so as to position the position area of the monitored object. The binocular vision positioning system can acquire the monitoring image of the position area where the monitoring object is located through the binocular camera monitoring the position area according to the positioning result of the identification positioning system, and can identify whether urticaria occurs on the body of the monitoring object through the existing image identification algorithm. And the processing terminal can determine the part where the urticaria occurs by combining the position coordinates and the position coordinates of each characteristic point of the monitored object body.
In this embodiment, preferably, the processing terminal is further configured to count the total number of the parts generating the urticaria, and determine the degree of iodine contrast agent allergy of the monitored subject according to the total number.
The processing terminal can count the total number of the parts generating the urticaria, determine the allergy degree of the iodine contrast agent of the monitored object by comparing the change condition of the total number, and determine that the allergy degree of the iodine contrast agent of the monitored object is aggravated when the total number is increased.
In this embodiment, preferably, the identification and location system includes:
the RFID tags are worn at various characteristic points on the body of the monitored object and send out corresponding identification signals;
the RFID readers are used for acquiring identification signals sent by all the RFID tags;
and the positioning terminal is used for identifying the monitored object according to the identification signal acquired by the RFID reader and positioning the space coordinates of each characteristic point on the body of the monitored object.
Specifically, the corresponding RFID tags may be arranged at characteristic points of the wrist, chest, neck, forehead, ankle, etc., of the monitored subject, respectively, through the strap, and the RFID tags may emit identification signals corresponding to the arranged positions. The positioning terminal can collect RFID tags through RFID readers arranged at various places of a hospital, and determines the space coordinate of each RFID tag by adopting the existing radio frequency positioning algorithm, namely the space coordinate of each characteristic point on the monitored object.
In this embodiment, preferably, the binocular vision positioning system includes:
the binocular video cameras are used for acquiring monitoring images of corresponding monitoring areas;
and the monitoring terminal is arranged in the range coordinates of the monitoring areas of all the binocular cameras and used for acquiring the space coordinates of each characteristic point to determine the position coordinates of the monitored object and matching the coordinates of the central point with the range coordinates corresponding to each binocular camera so as to acquire the monitoring image of the area where the monitored object is located and identify and position the position coordinates of urticaria caused by iodine contrast agent allergy.
Specifically, binocular cameras may be arranged in each area of the hospital, and each binocular camera acquires monitoring images of different monitoring areas and transmits the monitoring images to the monitoring terminal. The monitoring terminal can determine the position coordinates of the monitored object according to the space coordinates of the characteristic points, matches the position coordinates with the range coordinates of the monitoring area of each binocular camera, determines the monitoring area where the monitored object is located, and collects the monitoring images sent by the corresponding binocular cameras to identify and position.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims (7)

1. An iodine contrast agent allergy monitoring method, comprising:
identifying a monitored object through an identification and positioning system, and positioning the space coordinates of each characteristic point on the body of the monitored object;
acquiring monitoring images of corresponding areas through a binocular vision positioning system according to the space coordinates of all the feature points, and identifying and positioning position coordinates of urticaria caused by allergy of iodine contrast agents in the monitoring images, wherein the method comprises the following steps:
extracting pixel images corresponding to the urticaria from the left image and the right image of the monitoring image respectively through the identification result;
converting the extracted pixel image into a gray image and extracting contours to obtain the contours of all urticaria in the left image and the right image;
matching the corresponding contours of the left image and the right image to determine the contour corresponding to the same urticaria;
determining the position coordinate of each urticaria through the center point coordinate of the corresponding contour based on the preset parameters of the binocular vision positioning system;
determining the positions where the urticaria occurs according to the position coordinates of the urticaria and the space coordinates of each characteristic point, and monitoring the number of the distributed positions of the urticaria on the body, wherein the method comprises the following steps:
determining and monitoring the space range coordinates of each part of the corresponding body according to the space coordinates of each characteristic point;
and matching the position coordinates of the urticaria with the space range coordinates of each part to determine the part where the urticaria occurs.
2. The iodine contrast agent allergy monitoring method of claim 1, wherein the identification and localization system comprises a radio frequency identification and localization system.
3. The method for monitoring allergy to iodine contrast agent as claimed in claim 1, wherein the step of acquiring the monitoring image of the corresponding area by means of a binocular vision positioning system according to the spatial coordinates of all the feature points comprises:
determining the coordinates of the central point of the body of the monitored object according to the space coordinates of the characteristic points;
matching the central point coordinates with the monitoring area coordinates of each binocular camera in the binocular vision positioning system, and determining the binocular camera corresponding to the corresponding area;
and acquiring the monitoring image through a binocular camera corresponding to the corresponding area.
4. The iodine contrast agent allergy monitoring method according to claim 1, wherein the identifying of all urticaria arising from iodine contrast agent allergy in the monitored image comprises:
converting the monitoring image from an RGB space to an HSV space;
and identifying the urticaria through corresponding HSV color intervals.
5. An iodine contrast allergy monitoring system, comprising:
the identification positioning system is used for identifying the monitored object and positioning the space coordinates of each characteristic point on the body of the monitored object;
the binocular vision positioning system is used for acquiring monitoring images of corresponding areas according to the space coordinates of the characteristic points and identifying and positioning position coordinates of urticaria caused by allergy of iodine contrast agents in the monitoring images;
the binocular vision positioning system comprises:
the binocular video cameras are used for acquiring monitoring images of corresponding monitoring areas;
the monitoring terminal is provided with range coordinates of monitoring areas of all the binocular cameras and is used for acquiring space coordinates of all the characteristic points to determine position coordinates of a monitored object and matching the coordinates of the central point with the range coordinates corresponding to all the binocular cameras so as to acquire monitoring images of the area where the monitored object is located and identify and position the position coordinates of urticaria caused by allergy of an iodine contrast agent;
the processing terminal is used for determining the positions where the urticaria occurs according to the position coordinates of the urticaria and the space coordinates of each characteristic point, and monitoring the number of the distributed positions of the urticaria on the body, and comprises the following steps:
determining and monitoring the space range coordinates of each part of the corresponding body according to the space coordinates of each characteristic point;
and matching the position coordinates of the urticaria with the space range coordinates of each part to determine the part where the urticaria occurs.
6. The iodine contrast allergy monitoring system of claim 5, wherein the processing terminal is further configured to count the total number of sites where the urticaria develops and determine the degree of iodine contrast allergy of the monitored subject based on the total number.
7. The iodine contrast agent allergy monitoring system of claim 5, wherein the identification and localization system comprises:
the RFID tags are worn at various characteristic points on the body of the monitored object and send out corresponding identification signals;
the RFID readers are used for acquiring identification signals sent by all the RFID tags;
and the positioning terminal is used for identifying the monitored object according to the identification signal acquired by the RFID reader and positioning the space coordinates of each characteristic point on the body of the monitored object.
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