TWI261110B - Fever screening method and system - Google Patents

Abstract

The present invention relates to a fever screening method and system (II). The method includes steps of: (a) using a thermal image system to detect an examinee in formation of dynamic/static thermal image data; (b) applying a camera operated in a visible light range to detect the examinee in formation of dynamic/static image data in visible light range; (c) analyzing if the temperature of the thermal image data exceeds certain blocks (A1-An) of setup value; (d) resuming step (a) if yes in step (c); (e) analyzing the image data in visible light range concerning the corresponding time spot to see if the blocks (A1-An) are fallen on the human skin portion of the image in visible light range if no in step (c); (f) resuming step (a) if the blocks are not for the human skin portion; and (g) issuing an alert signal to remind operator of possible entry of people with fever if no in step (e).

Description

1261110 V. INSTRUCTIONS (1) [Technical field to which the invention pertains] This: It is a kind of screening system, especially the image processing technology combined with the thermal imaging instrument fever screening system. And [previous technology] According to the 'a wide range of thermometers, including: mercury, electronic, ear temperature and thermometers, even infrared thermal imaging, measurement methods and identification, especially π body / dish The thermometer is a contact type body 14, and the etched field spit electricity is ten silver.-# ξ,Ι Τ ^ ^ ^ /m df must be in close contact with the human body when using it, only to the right body temperature, Jin, and witness Qiu Youshixi, Laguzhishe Na, Yuli/4 are mainly anal temperature, phlegm and mouth> JDL, direct contact with the temperature of 1 and the age of β is required to take a long time. However, the 疋 sensing element reacts two π k丄, ..., /2: as a fast fever screening station. The ear > dish grab type and the front temperature grab type 髀,, 呌 呌 non-contact measurement, mainly == infrared thermal imager belongs to Lu, measuring the door 4- ί external line sensor to feel the body surface temperature / Then there is a short time, but the gift of 矣,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Compared with the reading temperature, it also takes a certain time, day; the replacement of the earmuffs and the risk, the earmuffs consumables + ^, when there is a potential danger of close contact (4) doubts. Stomach .... & coping with the place where the large flow is placed and there is a need to reach the big /; IL, rapid screening and fever only depends on the 彡俜 彡俜 。 。. Therefore, in Xu Wei * Θ Θ Θ Θ Θ 疋 疋 疋 热 热 热 热 热 热 热 热 热 热 热 热 ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ Using infrared thermal imagery: measuring body-phenotype, because it observes the surface temperature of the skin of the whole body, because &, when: 疋-人头#, σ ¥ ts π々田攸 (8) f k to the outside When entering the room, the cover and even the taste clothes absorb more heat due to the sunlight.

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The amount of heat released in the room is also relatively high, which causes the subject to be misjudged as a fever due to the heat dissipation problem of other body parts. It is usually necessary to cooperate with a person to monitor the fever position and cannot be automated. The elimination of the error by the screen of the person is likely to lead to the exhaustion of the observer. Under the circumstance of a large number of people entering and exiting, a person who is in the test is not prolonged in the appearance of the thermal image monitor screen, and the inertia is misjudged, so that the real fever passes without further examination. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a fever screening test method and system (2) that can reduce false positive fever and achieve rapid and automated performance. Thus, a method of fever screening according to the present invention comprises: a) detecting a subject by using a thermal image unit to generate dynamic/static thermal image data, and b) detecting a subject in a visible range image unit. To form a dynamic/static visible range image data, C) to analyze whether the temperature of the thermal image data exceeds a certain set value (AfAn), ^ d ) If there is no block of step c, return to step a, e If there is a block of c steps, analyze the visible light range image data corresponding to the time point, whether the blocks (Ai~An) fall on the human skin part of the visible light range image, f) if not the human skin part, then Go to step a. g) If it is part of the human skin, a warning signal is issued to remind the manager that there may be a fever person entering.

Page 6 1261110 V. Inventive Description (3) A fever screening system of the present invention is for detecting the body surface temperature and state of a subject, the fever screening system comprising: a thermal image unit, a visible light Range image unit, a processing unit, and a display unit. ^ The thermal image unit is used to continuously capture the surface temperature of the environment and convert it into thermal image data. The visible light range image unit is a conventional camera or two (3) camera or other visible light range camera device for continuous capture. The visible light range image data of the same location as the thermal image; the processing unit is electrically connected to the thermal image unit and the visible light range image unit and is used for further analysis of the captured thermal image data and the visible range image data. Screening for suspected fever patients; the display unit displays the results of the analysis. The above and other technical contents, features and effects of the present invention will become apparent from the following detailed description of the preferred embodiments. τ 7ΓΓ 4 α The test method of fever is performed according to the following steps: ? phase: ft „ Place the thermal image unit 1 with the visible range image unit, solid 疋 ' and place a marker at an appropriate distance in front of it With u 士六丁° # ^ τ ^ and the positive image relationship between the two instruments, with coordinates (four), relationship. This; the mirror SHC effect of the image poor, can make the visible range camera unit 2 pure ί translation; that is, 1 = 1: Yes! So the formula is divided. But although not limited to the implementation of the present invention

1261110

^Execution = Step a, a thermal imager 1 continuously captures the ambient body surface temperature and replaces it with dynamic/sedative thermal image data. The original thermal image data generally presents a two-dimensional temperature distribution in grayscale mode. Performing a step b, the visible light range camera 2 continuously captures the visible range image of the same location as the thermal image into dynamic/static visible range image data, and the original visible range image data is generally RGB (Red one).

The format of the Green Blue color mode is captured and approximately one image per second is accessible.

Performing a step c, the processing unit 3 analyzes the thermal image data, and the processing unit 3 analyzes whether the temperature of the thermal image data exceeds a certain set value (Αι, An), and is marked with an easily recognizable color, such as orange-red. A step d is performed, and if it is not in the block, it returns to step a. A step e is performed. If there is a block in the c step, the visible light range image data corresponding to the time point is analyzed, and whether the blocks (Αι~,) fall on the human skin part of the visible light range image.

As to whether it is a part of the human skin, it is possible to analyze whether the image in the visible range is a part of the skin color by the technique of image processing. While the RGB color mode is susceptible to light, the RGB color mode can be converted to the YIQ color mode YUV or HSV color mode, and the color tone block (IQ, UV or SV) can be used to find the skin color block. If it is within a certain critical value range, it can be judged as a skin color block. Then, if the feature ratio is a part of the human body feature, for example, the face is close to an ellipse, the ellipse comparison can be used to determine whether the skin color portion is used. Whether it is part of the facial features. Perform a step f, if it is not a human skin part, return to step a.

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Sun and Moon (5) —------------- Interest _ Dry ^ 8 8 If the human skin is part of the body, then a warning message is issued. If the person is alan, there may be a fever person entering. As shown in FIG. 1 , the fever screening system of the present invention comprises: a thermal imaging unit, a visible range image unit 2, a processing unit 3, and an upper [q=4] unit and can be mounted. In a removable shelf - read the thermal shift. The shell image & image unit 1 ' can be an infrared thermal imager for continuously converting the body surface temperature of the subject to thermal image data. Ke or other, light range image unit 2, which can be a CCD or CMOS camera unit 1 and a visible light range camera device, can be used to continuously capture the visible light range image data from the thermal image to the location. The visible light fan ^3 can be a computer connected to the thermal image unit 1 and the life-rs^* image unit 2, and used to take the captured thermal image shirt as a negative material for further analysis and screening. The discovery personnel, the processing display - can be attached to a warning device 6 and a voice unit 7 (such as a speaker), g 俾 can send warning signals and voice information. The f is not a unit 4, which can be a screen for displaying the analysis result. , ^ Ping 疋 1, 2 and the details of the processing unit 3 technical content is a well-known technique, and db I ^ ^ is not an improvement focus of the present invention, and therefore will not be described again. ^ t , 糸 and screening methods are characterized by: using image processing technology to determine whether the part of the human body is part of the human body. Based on this kind of big fight, _ ...立工_万式' can avoid the situation of misjudgment without special supervision, but can achieve the effect of speed and automation. However, the above is only a preferred embodiment of the present invention, when not

Page 9 1261110 V. INSTRUCTIONS (6) The scope of the present invention can be limited thereto, that is, the simple equivalent changes and modifications made by the present invention in accordance with the scope of the invention and the contents of the description of the invention should still belong to the present invention. Within the scope of coverage.

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Claims (1)

l26Ul〇 Japanese repair (more) hair replacement page VI, the scope of application for patents: 1. A method of fever screening, including: a) detecting the subject by thermal imaging unit to become dynamic/static thermal image data; b) using a visible light The range image unit detects the subject's dynamic/static visible range image data, and C) analyzes whether the temperature of the thermal image data exceeds a certain set value < block (A^An); d) If there is no block of step c, return to step a ▲ e) If it is stored in the block of step c, analyze the visible light range image data corresponding to f time point, these blocks (A Guang An Whether it falls on the skin of the human eye in the visible range image; Ο If it is a non-human skin part, it is the same as step a; g) If it is a human skin part, a warning signal is issued, and the supervisor may have a fever person to enter. 2·-Fevering screening system (2), used to detect _ subject's body surface temperature status 'read fever screening system, including · · a thermal image unit for continuous extraction of the measured luxury body surface The temperature is converted into thermal image data; a visible light range image unit is used to continuously capture the image of the visible light range at the same location as the image unit; a processing unit is connected to the thermal image unit and the visible light range image unit, and the sub-use Use the thermal image data to be captured and the visible light range image data for further 12 丨 and month) daily repair (more) replacement page] 126111〇 analysis to screen suspected fever personnel; and a display unit for display Analysis results. Among them, a fever screening system as described in item 2 of the patent application scope can be an infrared imaging device. , (-) 4· As described in the second paragraph of the patent application scope, 'the visible light range image unit can be a camera · f "...(―)' 5. If the patent application scope is 2 In one of the items, the processing unit may be provided with a warning device, and the body may emit a green (2), which is a fever screening system (2) according to claim 2, wherein the processing unit is With a voice unit, you can correct voice information. ^ 7·=The range of the fever screening system (2) described in item 2 of the towel range, the y /", ~ image unit, visible light range image unit, processing unit and display unit can be set to - convertible On the shelf to facilitate displacement. 13