CN111811657B - Method and device for correcting human face temperature measurement and storage medium - Google Patents
Method and device for correcting human face temperature measurement and storage medium Download PDFInfo
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- CN111811657B CN111811657B CN202010644169.6A CN202010644169A CN111811657B CN 111811657 B CN111811657 B CN 111811657B CN 202010644169 A CN202010644169 A CN 202010644169A CN 111811657 B CN111811657 B CN 111811657B
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- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims abstract description 53
- 238000004590 computer program Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 238000012549 training Methods 0.000 claims description 4
- 238000004861 thermometry Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims 2
- 210000001061 forehead Anatomy 0.000 description 9
- 206010037660 Pyrexia Diseases 0.000 description 6
- 210000003128 head Anatomy 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001815 facial effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0022—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation of moving bodies
- G01J5/0025—Living bodies
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/06—Arrangements for eliminating effects of disturbing radiation; Arrangements for compensating changes in sensitivity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/80—Calibration
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/161—Detection; Localisation; Normalisation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/161—Detection; Localisation; Normalisation
- G06V40/166—Detection; Localisation; Normalisation using acquisition arrangements
Abstract
The invention provides a method, a device and a storage medium for correcting face temperature measurement, wherein the method comprises the following steps: carrying out face infrared temperature measurement on a measured person to determine the face temperature of the measured person; when the face temperature of the measured person is determined to exceed a preset temperature threshold, the following operations are executed: detecting a human face shielding part of a measured person; when the human face shielding part is detected, prompt information for releasing the shielding state of the human face shielding part is output, and after the shielding state of the human face shielding part of the measured person is released, human face infrared temperature measurement is performed on the measured person again. The invention can reduce the labor cost and reduce the personnel contact risk.
Description
Technical Field
The invention relates to the technical field of infrared temperature measurement, in particular to a method and a device for correcting human face temperature measurement and a storage medium.
Background
The existing face temperature measurement technology mainly obtains the temperature of the whole picture through an infrared temperature measurement algorithm, then carries out face region positioning through a face detection algorithm, finds the highest temperature of the face region and achieves the effect of human body temperature measurement.
The existing face temperature measurement method is easily influenced by a plurality of external factors, for example, the forehead temperature is easily higher when a measured person wears a hat or the forehead part has bang, and the face temperature is easily higher when the measured person wears a mask. When the temperature measurement result of the measured person exceeds the alarm limit value, an alarm can be given, under the condition, the measured person needs to be guided manually to take off a hat, a mask, arrange bang and the like, the temperature measurement is carried out again for verification and confirmation, the labor cost is greatly increased in the process, and meanwhile, the contact risk of people is increased.
Disclosure of Invention
In view of this, the present invention provides a method, an apparatus and a storage medium for correcting human face temperature measurement, which can reduce labor cost and reduce the risk of human contact.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for correcting human face temperature measurement comprises the following steps:
carrying out face temperature measurement on a measured person to determine the face temperature of the measured person;
when the face temperature of the measured person is determined to exceed a preset temperature threshold, the following operations are executed:
detecting a face shielding part of a measured person according to the acquired face image;
when the human face shielding part is detected, prompt information for releasing the shielding state of the human face shielding part is output, and after the shielding state of the human face shielding part of the measured person is released, human face infrared temperature measurement is performed on the measured person again.
An apparatus for correcting temperature measurement of a human face, comprising: the system comprises a temperature measurement sensor, an image collector, a processor and a non-transitory computer readable storage medium connected with the processor through a bus;
the non-transitory computer readable storage medium storing one or more computer programs executable by the processor;
the temperature measurement sensor is used for measuring the temperature of the face of the measured person and determining the face temperature of the measured person;
the image collector is used for collecting a face image of a measured person;
the processor, when executing the one or more computer programs, implements the steps of: when the face temperature of the measured person is determined to exceed a preset temperature threshold, the following operations are executed:
detecting a human face shielding part of the measured person according to the human face image acquired by the image acquisition device;
when the human face shielding part is detected, prompt information for releasing the shielding state of the human face shielding part is output, and after the shielding state of the human face shielding part of the measured person is released, human face temperature measurement is carried out on the measured person again.
A non-transitory computer readable storage medium storing instructions which, when executed by a processor, cause the processor to perform the steps in the method of correcting face thermometry as described above.
According to the technical scheme, when the face temperature of the measured person exceeds the preset temperature threshold value, the face shielding part of the measured person is detected and determined, and the prompt information for removing the shielding state of the face shielding part is output, so that the measured person can take away or adjust the shielding object according to the prompt information, interference factors of face temperature measurement can be eliminated when the face temperature of the measured person is measured again, and accurate face temperature is obtained through measurement. Therefore, the temperature measuring equipment is used for prompting the measured person to automatically correct the shielded state of the face during temperature measurement instead of manual prompting, so that the labor cost can be reduced, and the personnel contact risk can be reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
FIG. 1 is a flowchart of a method for correcting human face temperature measurement according to an embodiment of the present invention;
FIG. 2 is a flowchart of a method for measuring temperature of a corrected face according to a second embodiment of the present invention;
FIG. 3 is a flowchart of a method for correcting human face temperature measurement according to a third embodiment of the present invention;
FIG. 4 is a flowchart of a method for correcting human face temperature measurement according to a fourth embodiment of the present invention;
FIG. 5 is a flowchart of a method for correcting human face temperature measurement according to a fifth embodiment of the present invention;
FIG. 6 is a flowchart of a method for correcting human face temperature measurement according to a sixth embodiment of the present invention;
fig. 7 is a schematic structural diagram of a device for correcting human face temperature measurement according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the embodiment of the invention, when the face temperature is measured abnormally, the face temperature measurement is corrected by detecting the face shielding part and prompting the measured person to remove the shielding object of the face shielding part.
Referring to fig. 1, fig. 1 is a flowchart of a method for correcting human face temperature measurement according to an embodiment of the present invention, and as shown in fig. 1, the method includes the following steps:
In this embodiment, when the temperature of the face is measured, a non-contact face temperature measurement method, such as infrared temperature measurement, may be used.
the preset temperature threshold may be set according to specific requirements, for example, the temperature measurement of the face for detecting whether the subject has fever may be set to 37 degrees.
103, detecting a human face shielding part of the measured person according to the collected human face image of the measured person;
in this embodiment, when the face temperature measurement is performed on the measured person, the face image of the measured person is also collected at the same time, so as to be used for the face shielding part detection in this step.
And 104, outputting prompt information for removing the shielding state of the face shielding part when the face shielding part is detected, and performing face infrared temperature measurement on the measured person again after the shielding state of the face shielding part of the measured person is removed.
In this embodiment, the face shielding part may be a head (shielding by a cap), a forehead (shielding by bang), a mouth (shielding by a mask), or the like.
In this embodiment, after the face shielding part is detected and determined, the user may be reminded to take away the shielding object of the face shielding part (for example, take away a cap or a mask) or make an adjustment (for example, arrange bang) by outputting voice prompt information or text prompt information.
As can be seen from the method shown in fig. 1, in this embodiment, after it is detected and determined that the face temperature exceeds the preset temperature threshold, the face shielding part is detected and determined, and the measured person is prompted to remove the shielding state of the face shielding part, so that the measured person can independently take away the shielding object or adjust the shielding object according to the prompt, thereby performing face temperature measurement on the measured person again to eliminate interference and obtain an accurate face temperature, and no additional manual intervention is required in the process, so that the labor cost can be saved, and the risk of contact of people can be reduced.
Referring to fig. 2, fig. 2 is a flowchart of a method for correcting human face temperature measurement according to a second embodiment of the present invention, and as shown in fig. 2, the method includes the following steps:
In this embodiment, when the temperature of the face is measured, a non-contact face temperature measurement method, such as infrared temperature measurement, may be used.
the preset temperature threshold may be set according to specific requirements, for example, the temperature measurement of the face for detecting whether the subject has fever may be set to 37 degrees.
and 204, outputting prompt information for releasing the shielding state of the face shielding part when the face shielding part is detected, and performing face infrared temperature measurement on the measured person again after the shielding state of the face shielding part of the measured person is released.
In this embodiment, the face shielding part may be a head (shielding by a cap), a forehead (shielding by bang), a mouth (shielding by a mask), or the like.
In this embodiment, after the face shielding part is detected and determined, the user may be reminded to take away the shielding object of the face shielding part (for example, take away a cap or a mask) or make an adjustment (for example, arrange bang) by outputting voice prompt information or text prompt information.
And step 205, outputting the face temperature of the measured person when the face temperature of the measured person is determined not to exceed the preset temperature threshold.
In this embodiment, if the face temperature of the measured person does not exceed the preset temperature threshold, operations such as detecting and determining a face shielding part are not performed.
As can be seen from the method shown in fig. 2, in this embodiment, after it is detected and determined that the face temperature exceeds the preset temperature threshold, the face shielding part is detected and determined, and the measured person is prompted to remove the shielding state of the face shielding part, so that the measured person can independently take away the shielding object or adjust the shielding object according to the prompt, thereby performing face temperature measurement on the measured person again to eliminate interference and obtain an accurate face temperature, and no additional manual intervention is required in the process, so that the labor cost can be saved, and the risk of contact of people can be reduced. In addition, when the face temperature does not exceed the preset temperature threshold, operations such as detecting and determining a face shielding part are not executed, and unnecessary computing resource waste can be reduced.
Referring to fig. 3, fig. 3 is a flowchart of a method for correcting human face temperature measurement according to a third embodiment of the present invention, and as shown in fig. 3, the method includes the following steps:
In this embodiment, when the temperature of the face is measured, a non-contact face temperature measurement method, such as infrared temperature measurement, may be used.
the preset temperature threshold may be set according to specific requirements, for example, the temperature measurement of the face for detecting whether the subject has fever may be set to 37 degrees.
and step 304, outputting prompt information for releasing the shielding state of the face shielding part when the face shielding part is detected, and performing face infrared temperature measurement on the measured person again after the shielding state of the face shielding part of the measured person is released.
In this embodiment, the face shielding part may be a head (shielding by a cap), a forehead (shielding by bang), a mouth (shielding by a mask), or the like.
In this embodiment, after the face shielding part is detected and determined, the user may be reminded to take away the shielding object at the face shielding part (for example, take away a hat or a mask) or make an adjustment (for example, arrange bang) by outputting voice prompt information or text prompt information.
And 305, outputting alarm information with the face temperature of the measured person when the face shielding part is not detected.
In this embodiment, when the face temperature exceeds the preset temperature threshold and the face shielding part is not detected, it indicates that there is no factor interfering with the face temperature measurement during the face temperature measurement, and therefore, the measured face temperature is an accurate face problem, and at this time, alarm information can be output to indicate the face temperature abnormal condition, so that the working personnel can take measures.
As can be seen from the method shown in fig. 3, in this embodiment, after it is determined that the face temperature exceeds the preset temperature threshold value, when the face shielding part is detected, the measured person is prompted to remove the shielding state of the face shielding part, so as to eliminate the interference factor of the face temperature measurement, and thus, an accurate face temperature can be obtained when the face temperature measurement is performed on the measured person again. In addition, when the face shielding part is not detected, a warning can be directly sent out to remind the measured person of abnormal face temperature, so that a worker can take appropriate measures.
Referring to fig. 4, fig. 4 is a flowchart of a method for correcting human face temperature measurement according to a fourth embodiment of the present invention, and as shown in fig. 4, the method includes the following steps:
In this embodiment, when the temperature of the face is measured, a non-contact face temperature measurement method, such as infrared temperature measurement, may be used.
4031, detecting the collected face image of the measured person, and determining the face shielding area position and the face shielding proportion of the measured person;
4032, judging whether the face shielding area position and the face shielding proportion of the measured person are detected, if so, executing 4033, otherwise, executing 4034;
the preset temperature threshold may be set according to specific requirements, for example, the temperature measurement of the face for detecting whether the subject has fever may be set to 37 degrees.
4033, determining a face shielding part according to the face shielding area and the face shielding proportion of the measured person;
and step 4034, determining that the human face shielding part is not detected.
The above steps 4031 to 4034 are specific refinements of the step 103 shown in fig. 1.
And step 404, outputting prompt information for releasing the shielding state of the face shielding part when the face shielding part is detected, and performing face infrared temperature measurement on the measured person again after the shielding state of the face shielding part of the measured person is released.
In this embodiment, the face shielding part may be a head (shielding by a cap), a forehead (shielding by bang), a mouth (shielding by a mask), or the like.
In this embodiment, after the face shielding part is detected and determined, the user may be reminded to take away the shielding object of the face shielding part (for example, take away a cap or a mask) or make an adjustment (for example, arrange bang) by outputting voice prompt information or text prompt information.
As can be seen from the method shown in fig. 4, in this embodiment, after it is detected and determined that the face temperature exceeds the preset temperature threshold, the face shielding part is detected and determined, and the measured person is prompted to remove the shielding state of the face shielding part, so that the measured person can independently take away the shielding object or adjust the shielding object according to the prompt, thereby performing face temperature measurement on the measured person again to eliminate interference and obtain an accurate face temperature, and no additional manual intervention is required in the process, so that the labor cost can be saved, and the risk of contact of people can be reduced. In addition, in this embodiment, when the face shielding part is detected, the face shielding part is determined by detecting the face shielding area position and the face shielding ratio of the person to be measured.
Referring to fig. 5, fig. 5 is a flowchart of a method for correcting human face temperature measurement according to a fifth embodiment of the present invention, and as shown in fig. 5, the method includes the following steps:
In this embodiment, when the temperature of the face is measured, a non-contact face temperature measurement method, such as infrared temperature measurement, may be used.
the preset temperature threshold may be set according to specific requirements, for example, the temperature measurement of the face for detecting whether the subject has fever may be set to 37 degrees.
in this embodiment, the face occlusion region identification model is obtained by training according to a face image labeled with a face occlusion region position and a face occlusion ratio.
In this embodiment, when the pre-trained face occlusion region recognition model is used to recognize the face occlusion region of the measured person, if the output result is the face occlusion region position and the face occlusion ratio of the measured person, it may be determined that the face occlusion region position and the face occlusion ratio of the measured person are detected, and if there is no output result or an output result indicating a recognition failure is output, if the output result is empty, it may be determined that the face occlusion region position and the face occlusion ratio of the measured person are not detected.
step 5033, determining a face shielding part according to the face shielding area and the face shielding proportion of the measured person;
The above steps 5031 to 5034 are detailed refinements of the step 103 shown in fig. 1.
And step 504, outputting prompt information for releasing the shielding state of the face shielding part when the face shielding part is detected, and performing face infrared temperature measurement on the measured person again after the shielding state of the face shielding part of the measured person is released.
In this embodiment, the face shielding part may be a head (shielding by a cap), a forehead (shielding by bang), a mouth (shielding by a mask), or the like.
In this embodiment, after the face shielding part is detected and determined, the user may be reminded to take away the shielding object of the face shielding part (for example, take away a cap or a mask) or make an adjustment (for example, arrange bang) by outputting voice prompt information or text prompt information.
As can be seen from the method shown in fig. 5, in this embodiment, after it is detected and determined that the face temperature exceeds the preset temperature threshold, the face shielding part is detected and determined, and the measured person is prompted to remove the shielding state of the face shielding part, so that the measured person can independently take away the shielding object or adjust the shielding object according to the prompt, thereby performing face temperature measurement on the measured person again to eliminate interference and obtain an accurate face temperature, and no additional manual intervention is required in the process, so that the labor cost can be saved, and the risk of contact of people can be reduced. In addition, in this embodiment, when detecting the face shielding region position and the face shielding ratio of the measured person, the identification and determination are performed by using a pre-trained face shielding region identification model.
Referring to fig. 6, fig. 6 is a flowchart of a method for correcting human face temperature measurement according to a sixth embodiment of the present invention, and as shown in fig. 6, the method includes the following steps:
In this embodiment, when measuring the temperature of the face, a non-contact face temperature measurement method, such as infrared temperature measurement, may be used.
6032, judging whether the face shielding area position and the face shielding proportion of the measured person are detected, if so, executing 4033, otherwise, executing 4034;
the preset temperature threshold may be set according to specific requirements, for example, the temperature measurement of a human face for the purpose of detecting whether a subject has fever may be set to 37 degrees.
in this embodiment, the facial feature parts include a forehead, eyes, a nose, a mouth, and the like, and the facial feature parts are distributed in different position ranges of the face (i.e., different regions of the face, where one region can be represented by one position range). The face feature distribution information includes a position range of each face feature on the face.
In this embodiment, the face feature part to which the face shielding region of the measured person belongs is determined according to the preset face feature part distribution information, and the human feature part with the highest overlap ratio is used as the face feature part to which the face shielding region of the measured person belongs by comparing the position range covered by the face shielding region of the measured person with the position range of each human feature part on the face.
Step 6033b, if the face shielding ratio of the measured person is greater than the preset shielding ratio threshold corresponding to the face feature part, determining that the face feature part is the face shielding part, otherwise, determining that the face feature part is not the face shielding part.
In this embodiment, when the face feature parts to which all the face occlusion regions belong are determined not to belong to the face occlusion part, it may also be determined that the face occlusion part is not detected.
The above steps 6033a to 6033b are a specific refinement of the step 4033 shown in fig. 4.
And step 6034, determining that the human face shielding part is not detected.
The above steps 6031 to 6034 are specific refinements of step 103 shown in fig. 1.
And step 604, outputting prompt information for releasing the shielding state of the face shielding part when the face shielding part is detected, and performing face infrared temperature measurement on the measured person again after the shielding state of the face shielding part of the measured person is released.
In this embodiment, the face shielding part may be a head (shielding by a cap), a forehead (shielding by bang), a mouth (shielding by a mask), or the like.
In this embodiment, after the face shielding part is detected and determined, the user may be reminded to take away the shielding object of the face shielding part (for example, take away a cap or a mask) or make an adjustment (for example, arrange bang) by outputting voice prompt information or text prompt information.
As can be seen from the method shown in fig. 6, in this embodiment, after it is detected and determined that the face temperature exceeds the preset temperature threshold, the face shielding part is detected and determined, and the measured person is prompted to remove the shielding state of the face shielding part, so that the measured person can independently take away the shielding object or adjust the shielding object according to the prompt, and interference can be eliminated when face temperature measurement is performed on the measured person again, and an accurate face temperature is obtained. In addition, in this embodiment, when the face shielding portion is determined according to the face shielding region position and the face shielding ratio of the measured person, the face feature portion to which the face shielding region of the measured person belongs is determined according to the preset face feature portion distribution information, and then whether the face feature portion is the face shielding portion is determined according to the face shielding ratio of the person who carries out the measurement, so that the implementation is simple.
The method for correcting human face temperature measurement provided by the embodiment of the invention is described in detail above, and the embodiment of the invention also provides a device for correcting human face temperature measurement, which is described in detail below with reference to fig. 7.
Referring to fig. 7, fig. 7 is a structural entity diagram of a device for correcting human face temperature measurement according to an embodiment of the present invention, and as shown in fig. 7, the device includes: a temperature sensor 701, an image collector 702, a processor 703, and a non-transitory computer-readable storage medium 704 connected to the processor 703 through a bus;
the non-transitory computer readable storage medium 704 storing one or more computer programs executable by the processor 703;
the temperature measurement sensor 701 measures the temperature of the face of the measured person to determine the face temperature of the measured person;
the image collector 702 collects a face image of a person to be measured;
the processor 703, when executing the one or more computer programs, performs the steps of: when the face temperature of the measured person is determined to exceed a preset temperature threshold, the following operations are executed:
detecting a human face shielding part of a measured person according to the human face image acquired by the image acquirer 702;
when the human face shielding part is detected, prompt information for releasing the shielding state of the human face shielding part is output, and after the shielding state of the human face shielding part of the measured person is released, human face temperature measurement is carried out on the measured person again.
In the arrangement shown in figure 7 of the drawings,
the processor 703 is further configured to: and when the face temperature of the measured person is determined not to exceed the preset temperature threshold, outputting the face temperature of the measured person.
In the arrangement shown in figure 7 of the drawings,
the processor 703 is further configured to: when the face shielding part is not detected, the alarm information with the face temperature of the measured person is output.
In the arrangement shown in figure 7 of the drawings,
the processor 703, detecting a face shielding part of the measured person, includes:
detecting and determining the face shielding area position and the face shielding proportion of a measured person;
if the position of the face shielding area and the face shielding proportion of the measured person are determined by detection, determining a face shielding part according to the face shielding area and the face shielding proportion of the measured person;
and if the human face shielding area and the human face shielding proportion of the measured person are determined to be undetected, determining that the human face shielding part is undetected.
In the arrangement shown in figure 7 of the drawings,
the processor 703 detects the face shielding region position and the face shielding ratio of the measured person, and includes:
recognizing the face image of the measured person by using a pre-trained face shielding area recognition model to obtain the face shielding area position and the face shielding proportion of the measured person;
the face shielding area recognition model is obtained by training according to a face image marked with the face shielding area position and the face shielding proportion.
In the arrangement shown in figure 7 of the drawings,
the processor 703 is further configured to: presetting human face characteristic part distribution information and a shielding proportion threshold corresponding to each human face characteristic part;
the processor 703 determines a face shielding part according to the face shielding region and the face shielding ratio of the measured person, and includes:
determining the face characteristic part of a face shielding area of a measured person according to preset face characteristic part distribution information;
and if the face shielding proportion of the measured person is larger than a preset shielding proportion threshold corresponding to the face characteristic part, determining that the face characteristic part is the face shielding part, otherwise, determining that the face characteristic part is not the face shielding part.
Embodiments of the present invention also provide a non-transitory computer readable storage medium storing instructions, which when executed by a processor, cause the processor to perform the steps of the method for correcting face thermometry provided in any one of the embodiments shown in fig. 1-6.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. A method for correcting human face temperature measurement is characterized by comprising the following steps:
carrying out face temperature measurement on a measured person to determine the face temperature of the measured person;
when the face temperature of the measured person is determined to exceed a preset temperature threshold, the following operations are executed:
detecting a human face shielding part of the measured person according to the collected human face image of the measured person;
when the human face shielding part is detected, outputting prompt information for releasing the shielding state of the human face shielding part, and measuring the human face temperature of the measured person again after the shielding state of the human face shielding part of the measured person is released;
wherein the content of the first and second substances,
according to the face image of the person to be measured who gathers, detect person's face of being measured and shelter from the position, include:
detecting the face image, and determining the face shielding area position and the face shielding proportion of the measured person;
if the position of the face shielding area and the face shielding proportion of the measured person are determined by detection, determining a face shielding part according to the face shielding area and the face shielding proportion of the measured person;
if the human face shielding area and the human face shielding proportion of the measured person are determined to be not detected, determining that the human face shielding part is not detected;
presetting human face characteristic part distribution information and a shielding proportion threshold corresponding to each human face characteristic part;
determining a face shielding part according to a face shielding area and a face shielding ratio of a measured person, comprising:
determining the face characteristic part of a face shielding area of a measured person according to preset face characteristic part distribution information;
and if the face shielding proportion of the measured person is larger than a preset shielding proportion threshold corresponding to the face characteristic part, determining that the face characteristic part is the face shielding part, otherwise, determining that the face characteristic part is not the face shielding part.
2. The method of claim 1, further comprising:
and when the face temperature of the measured person is determined not to exceed the preset temperature threshold, outputting the face temperature of the measured person.
3. The method of claim 1, further comprising:
when the face shielding part is not detected, the alarm information with the face temperature of the measured person is output.
4. The method of claim 1,
detecting the face image, and determining the face shielding region position and the face shielding proportion of the measured person, wherein the steps comprise:
recognizing the face image of the measured person by using a pre-trained face shielding area recognition model to obtain the face shielding area position and the face shielding proportion of the measured person;
the face shielding area recognition model is obtained by training according to a face image marked with the face shielding area position and the face shielding proportion.
5. A device for correcting human face temperature measurement is characterized by comprising: the system comprises a temperature measurement sensor, an image collector, a processor and a non-transitory computer readable storage medium connected with the processor through a bus;
the non-transitory computer readable storage medium storing one or more computer programs executable by the processor;
the temperature measurement sensor is used for measuring the temperature of the face of the measured person and determining the face temperature of the measured person;
the image collector is used for collecting a face image of a measured person;
the processor, when executing the one or more computer programs, implements the steps of: when the face temperature of the measured person is determined to exceed a preset temperature threshold, the following operations are executed:
detecting a human face shielding part of the measured person according to the human face image acquired by the image acquisition device;
when the human face shielding part is detected, outputting prompt information for releasing the shielding state of the human face shielding part, and measuring the human face temperature of the measured person again after the shielding state of the human face shielding part of the measured person is released;
wherein the content of the first and second substances,
the processor detects the human face shielding part of the measured person according to the human face image collected by the image collector, and comprises:
detecting the face image, and determining the face shielding area position and the face shielding proportion of the measured person;
if the position of the face shielding area and the face shielding proportion of the measured person are determined by detection, determining a face shielding part according to the face shielding area and the face shielding proportion of the measured person;
if the human face shielding area and the human face shielding proportion of the measured person are determined to be not detected, determining that the human face shielding part is not detected;
the processor is configured to: presetting human face characteristic part distribution information and a shielding proportion threshold corresponding to each human face characteristic part;
the processor determines a face shielding part according to the face shielding area and the face shielding proportion of the person to be measured, and comprises:
determining a face characteristic part to which a face shielding region of a measured person belongs according to preset face characteristic part distribution information;
and if the face shielding proportion of the measured person is larger than a preset shielding proportion threshold corresponding to the face characteristic part, determining that the face characteristic part is the face shielding part, otherwise, determining that the face characteristic part is not the face shielding part.
6. The apparatus of claim 5,
the processor is configured to: and when the face temperature of the measured person is determined not to exceed the preset temperature threshold, outputting the face temperature of the measured person.
7. The apparatus of claim 5,
the processor is configured to: when the face shielding part is not detected, the alarm information with the face temperature of the measured person is output.
8. The apparatus of claim 5,
the processor detects the face image, determines the face shielding region position and the face shielding proportion of the measured person, and comprises the following steps:
recognizing the face image of the measured person by using a pre-trained face shielding area recognition model to obtain the face shielding area position and the face shielding proportion of the measured person;
the face shielding area recognition model is obtained by training according to a face image marked with the face shielding area position and the face shielding proportion.
9. A non-transitory computer readable storage medium storing instructions which, when executed by a processor, cause the processor to perform the steps in the method of correcting face thermometry as claimed in any one of claims 1 to 4.
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