WO2022141188A1 - Procédé et dispositif de mesure de températures basés sur un détecteur de rayonnement thermique et détecteur de rayonnement thermique - Google Patents

Procédé et dispositif de mesure de températures basés sur un détecteur de rayonnement thermique et détecteur de rayonnement thermique Download PDF

Info

Publication number
WO2022141188A1
WO2022141188A1 PCT/CN2020/141375 CN2020141375W WO2022141188A1 WO 2022141188 A1 WO2022141188 A1 WO 2022141188A1 CN 2020141375 W CN2020141375 W CN 2020141375W WO 2022141188 A1 WO2022141188 A1 WO 2022141188A1
Authority
WO
WIPO (PCT)
Prior art keywords
pixel value
thermal radiation
area
image area
pixel
Prior art date
Application number
PCT/CN2020/141375
Other languages
English (en)
Chinese (zh)
Inventor
陈超帅
江宝坦
李想
曹子晟
李琛
夏斌强
Original Assignee
深圳市大疆创新科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市大疆创新科技有限公司 filed Critical 深圳市大疆创新科技有限公司
Priority to PCT/CN2020/141375 priority Critical patent/WO2022141188A1/fr
Priority to CN202080074055.0A priority patent/CN114616445A/zh
Publication of WO2022141188A1 publication Critical patent/WO2022141188A1/fr

Links

Images

Classifications

    • 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
    • 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
    • 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
    • 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
    • G01J5/007—Radiation pyrometry, e.g. infrared or optical thermometry for earth observation
    • 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
    • G01J5/08—Optical arrangements
    • 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
    • G01J5/48—Thermography; Techniques using wholly visual means
    • 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
    • G01J2005/0077—Imaging

Definitions

  • the present application relates to the technical field of temperature measurement, and in particular, to a temperature measurement method and device based on a thermal radiation detector, and a thermal radiation detector.
  • thermal radiation temperature measurement As a non-contact temperature measurement method, thermal radiation temperature measurement has been widely used. For example, it can be applied in the fields of UAV power inspection, UAV railway inspection and other fields.
  • the photosensitive element of the thermal radiation detector not only receives the thermal radiation of the target object through the optical system, but also receives the inner mirror of the thermal radiation detector. heat radiation from the cylinder.
  • the solution is to set a shutter between the lens barrel and the photosensitive element, and consider that the shutter temperature is close to the lens barrel temperature, so the thermal radiation is also close; refer to the detection image obtained by detecting the thermal radiation of the shutter when the shutter is closed and the shutter
  • the temperature of the target object is determined according to the detection image obtained by detecting the thermal radiation of the target object and the lens barrel when the shutter is opened.
  • Embodiments of the present application provide a temperature measurement method and device based on a thermal radiation detector, and a thermal radiation detector, so as to solve the problem that the shutter needs to be frequently detected for thermal radiation in the prior art, thereby causing the shutter to be opened and closed too frequently .
  • an embodiment of the present application provides a temperature measurement method based on a thermal radiation detector, the method comprising:
  • the thermal radiation detector includes the shutter and a photosensitive element array, and when the shutter is in an open state, the photosensitive element array is The preset elements of the thermal radiation detector are partially shielded, so that the photosensitive element array includes photosensitive elements in a shielded area and photosensitive elements in a non-shielded area, and the photosensitive elements in the non-shielded area can receive thermal radiation from a target object;
  • the detection image includes a first image area corresponding to the occlusion area and a second image area corresponding to the non-occlusion area;
  • the temperature of the target object is determined with reference to the pixel values in the first image area and according to the pixel values in the second image area.
  • an embodiment of the present application provides a thermal radiation detector, comprising: a shutter, a photosensitive element array, and a controller; the controller is configured to open the shutter when the thermal radiation detector detects;
  • the photosensitive element array When the shutter is in the open state, the photosensitive element array is partially shielded by the preset elements of the thermal radiation detector, so that the photosensitive element array includes the photosensitive elements in the shielded area and the photosensitive element in the non-shielded area.
  • a photosensitive element, the photosensitive element in the function of the non-blocking area can receive thermal radiation from the target object;
  • the photosensitive element array is configured to receive thermal radiation when the shutter is in an open state to generate a detection image corresponding to the received thermal radiation, the detection image including a first image area corresponding to the shielded area and a corresponding detection image. in the second image area of the non-occlusion area.
  • embodiments of the present application provide a temperature measurement device based on a thermal radiation detector, the device comprising: a memory and a processor;
  • the memory for storing program codes
  • the processor calls the program code, and when the program code is executed, is configured to perform the following operations:
  • the thermal radiation detector includes the shutter and a photosensitive element array, and when the shutter is in an open state, the photosensitive element array is The preset elements of the thermal radiation detector are partially shielded, so that the photosensitive element array includes photosensitive elements in a shielded area and photosensitive elements in a non-shielded area, and the photosensitive elements in the non-shielded area can receive thermal radiation from a target object;
  • the detection image includes a first image area corresponding to the occlusion area and a second image area corresponding to the non-occlusion area;
  • the temperature of the target object is determined with reference to the pixel values in the first image area and according to the pixel values in the second image area.
  • an embodiment of the present application provides a movable platform, wherein a thermal radiation detector is provided on the movable platform, and the movable platform includes the thermal radiation detector based on any one of the third aspects. temperature measuring device.
  • an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program includes at least one piece of code, and the at least one piece of code can be executed by a computer , to control the computer to execute the method according to any one of the first aspects.
  • an embodiment of the present application provides a computer program, characterized in that, when the computer program is executed by a computer, it is used to implement the method described in any one of the first aspect.
  • the embodiments of the present application provide a temperature measurement method and device based on a thermal radiation detector, and a thermal radiation detector.
  • the pixel value in the first image area, and the temperature of the target object is determined according to the pixel value in the second image area corresponding to the non-occluded area in the detection image, so as to realize the reference to the pixel value in the first image area in the same detection image
  • To determine the temperature of the target object since the pixel value in the first image area can be obtained when the shutter is in the open state, it does not need to be obtained by closing the shutter, so the shutter opening and closing required to determine the temperature of the target object can be avoided, thereby solving the problem of It solves the problem of opening and closing the shutter too frequently in the traditional technology.
  • FIG. 1 is a schematic diagram of an application scenario of a temperature measurement method based on a thermal radiation detector provided by an embodiment of the present application;
  • FIG. 2 is a schematic flowchart of a temperature measurement method based on a thermal radiation detector provided by an embodiment of the present application
  • 3A is a schematic diagram of a preset element partially shielding a photosensitive element array according to an embodiment of the present application
  • 3B is a schematic diagram of partially blocking a photosensitive element array when a shutter is in an open state according to an embodiment of the present application
  • 3C is a schematic diagram of completely blocking the photosensitive element array when the shutter is in a closed state according to an embodiment of the present application
  • FIG. 4 is a schematic diagram of a first image area and a second image area provided by an embodiment of the present application
  • FIG. 5 is a schematic flowchart of a temperature measurement method based on a thermal radiation detector provided by another embodiment of the present application.
  • FIG. 6 is a schematic diagram of at least a part of a region corresponding to a target object in a detection image provided by an embodiment of the present application;
  • FIG. 7A is a schematic diagram of a photosensitive element in a shielded area receiving thermal radiation according to an embodiment of the present application
  • FIG. 7B is a schematic diagram of a photosensitive element in a non-blocking area receiving thermal radiation according to an embodiment of the present application
  • FIG. 8 is a schematic diagram of the radiation amount of thermal radiation received by a photosensitive element in a non-shielded area and a photosensitive element in a shielded area according to an embodiment of the present application;
  • FIG. 9 is a schematic structural diagram of a temperature measuring device based on a thermal radiation detector according to an embodiment of the present application.
  • the temperature measurement method based on the thermal radiation detector provided in the embodiment of the present application can be applied to the application scenario shown in FIG. 1 .
  • the application scenario may include a thermal radiation detector 11 and a temperature measuring device 12 for measuring temperature based on the thermal radiation detector 11 .
  • the thermal radiation detector 11 is an uncooled thermal radiation detector, that is, when detecting a target object such as a target human body, the photosensitive element of the thermal radiation detector 11 receives the thermal radiation of the target object through the optical system. In addition, the thermal radiation of the inner cavity of the thermal radiation detector 11 is also received. It should be noted that, since the thermal radiation of the internal cavity of the thermal radiation detector 11 is mainly the thermal radiation of the lens barrel inside the thermal radiation detector, the temperature measurement method in the embodiment of the present application mainly considers the thermal radiation detector 11 Influence of thermal radiation of the cavity inside on temperature measurement.
  • the thermal radiation detector 11 may be, for example, an infrared detector or other detector that uses the thermal effect of thermal radiation to collect detection images.
  • the thermal radiation detector 11 has a structure using the thermal radiation detector provided in the embodiment of the present application.
  • the temperature measuring device 12 can determine the temperature of the target object by using the method provided by the embodiment of the present application based on the detection image collected by the thermal radiation detector 11 .
  • the temperature measurement method based on a thermal radiation detector provided in the embodiment of the present application can be applied to a temperature measurement scenario that requires temperature measurement based on an uncooled thermal radiation detector, such as a movable platform.
  • the movable platform may include an unmanned aerial vehicle, an unmanned boat or an unmanned vehicle.
  • the thermal radiation detector 11 and the temperature measuring device 12 may be integrated into the same device, for example, the thermal radiation detector 11 and the temperature measuring device 12 may both be included in an unmanned aerial vehicle.
  • the thermal radiation detector 11 and the temperature measuring device 12 may be located in different equipment, for example, the thermal radiation detector 11 may be installed on a drone, and the temperature measuring device 12 may be included in the in the control terminal of the drone.
  • FIG. 2 is a schematic flowchart of a temperature measurement method based on a thermal radiation detector provided by an embodiment of the present application.
  • the execution body of this embodiment may be the temperature measurement device 12 in FIG. 1 , and specifically may be the processor of the temperature measurement device 12 .
  • the method of this embodiment may include:
  • Step 21 Acquire a detection image collected by the thermal radiation detector when the shutter is in an open state; wherein, the thermal radiation detector includes the shutter and a photosensitive element array, and when the shutter is in an open state, the photosensitive The element array is partially shaded by the preset elements of the thermal radiation detector, so that the photosensitive element array includes photosensitive elements in the shaded area and photosensitive elements in the non-shaded area, and the photosensitive elements in the non-shaded area
  • the element is capable of receiving thermal radiation from a target object; the detection image includes a first image area corresponding to the occluded area and a second image area corresponding to the non-occluded area.
  • the photosensitive element array when the shutter is in an open state, the photosensitive element array is partially shielded by the preset elements of the thermal radiation detector, and a schematic diagram of the shielding can be shown in FIG. 3A .
  • the photosensitive element array 31 since the photosensitive element array 31 is partially shielded by the preset element 32 of the thermal radiation detector, the photosensitive element array 31 includes the photosensitive element in the shielded area 31A and the photosensitive element in the non-shielded area 31B. Yuan.
  • the shape and size of the occlusion area shown in FIG. 3 are only examples, and the size and shape of the occlusion area can be flexibly realized according to requirements. Theoretically, it is guaranteed that the number of pixels in the corresponding first image area is at least 1 is enough.
  • the shape of the preset element 32 in FIG. 3A is only an example, and the preset element 32 may be a dedicated element dedicated to shielding the photosensitive element, or the preset element 32 may also be multiplexed with other functions Reuse components.
  • the preset element 32 may include the shutter, and when the preset element 32 is the shutter, a schematic diagram of forming the blocking area 31A and the non-blocking area 31B by the shutter 32A may be as shown in FIG. 3B . Further, when the shutter 32A in FIG. 3B changes from the open state to the closed state, it can be as shown in FIG. 3C .
  • the detection image 40 collected by the thermal radiation detector may include a first image area 41 corresponding to the shielded area and a second image area corresponding to the non-shielded area 42.
  • the pixel value of a pixel in the detection image 40 is used to represent the intensity of radiation received by the photosensitive element corresponding to the pixel.
  • the detection image may specifically be a grayscale image, and in this case, the pixel value of the detection image may be a grayscale value.
  • the thermal radiation of the photosensitive element in the blocking area 31A when the target object is photographed by the optical system will also be blocked.
  • the thermal radiation detector is of an uncooled type, the preset element 21 will radiate heat, so the photosensitive element in the shielding area 31A can receive the thermal radiation of the preset element 21 .
  • the heat of the preset element 21 received by the photosensitive element in the blocking area 31A can be Radiation, equivalent to the thermal radiation of the lens barrel.
  • the pixel values in the first image area 41 in FIG. 4 can be used to characterize the radiation intensity of the lens barrel inside the thermal radiation detector.
  • the preset range can be is ⁇ 0.1°
  • the photosensitive element in the non-blocking area 31B can receive thermal radiation from the target object.
  • the thermal radiation detector is of an uncooled type, the photosensitive element in the non-shielded area 31B can receive thermal radiation from the target object and thermal radiation from the lens barrel inside the thermal radiation detector. Therefore, the pixel values in the second image area 42 in Fig. 4 can be used to characterize the radiation intensity of the target object and the lens barrel inside the thermal radiation detector.
  • Step 22 Determine the temperature of the target object with reference to the pixel values in the first image area and according to the pixel values in the second image area.
  • the pixel values in the first image area can be used to characterize the radiation intensity of the lens barrel inside the thermal radiation detector
  • the pixel values in the second image area can be used to characterize the target object and
  • the radiation amount of the lens barrel inside the thermal radiation detector is strong or weak, so through the mathematical operation of the pixel value in the first image area and the pixel value in the second image area, the radiation amount that can be used to characterize the target object can be obtained.
  • the pixel values of the strong and weak points can be obtained by referring to the pixel values in the first image area, and according to the pixel values in the second image area, the temperature of the target object can be determined.
  • the specific method of performing mathematical operations on the pixel values in the first image area and in the second image area to obtain the pixel values used to characterize the radiation intensity of the target object can be determined according to requirements. Flexible implementation. Any specific method of determining the temperature of the target object with reference to the pixel values in the first image area in the same detection image falls within the protection scope of the present application.
  • the temperature of the target object is determined by referring to the pixel value in the first image area in the same detection image.
  • the shutter is opened and closed by determining the temperature of the target object.
  • the temperature of the target object is determined by referring to the detection image obtained by detecting the thermal radiation of the shutter when the shutter is closed. Since the thermal radiation of the shutter is constantly changing, the thermal radiation of the shutter needs to be detected frequently and the shutter needs to be opened and closed frequently.
  • the application can avoid opening and closing the shutter due to the need to determine the temperature of the target object, thereby solving the problem of opening and closing the shutter too frequently in the conventional technology.
  • the method provided by the embodiment of the present application by acquiring the detection image collected by the thermal radiation detector when the shutter is in the open state, referring to the pixel value in the first image area corresponding to the occlusion area in the detection image, and according to the corresponding pixel value in the detection image
  • the pixel value in the second image area of the non-occlusion area determines the temperature of the target object
  • the temperature of the target object is determined by referring to the pixel value in the first image area in the same detection image.
  • the value can be obtained when the shutter is in an open state without closing the shutter, so the shutter opening and closing required to determine the temperature of the target object can be avoided, thus solving the problem of too frequent opening and closing of the shutter in the traditional technology.
  • FIG. 5 is a schematic flowchart of a temperature measurement method based on a thermal radiation detector provided by another embodiment of the present application. Based on the embodiment shown in FIG. 2 , this embodiment mainly describes the determination of pixel values with reference to the first image area. An optional implementation of the temperature of the target object. As shown in FIG. 5 , the method provided by this embodiment of the present application may include:
  • Step 51 Acquire a detection image collected by the thermal radiation detector when the shutter is in an open state; the thermal radiation detector includes the shutter and a photosensitive element array, and when the shutter is in an open state, the photosensitive element array is The preset elements of the thermal radiation detector are partially shielded, so that the photosensitive element array includes photosensitive elements in a shielded area and photosensitive elements in a non-shielded area, and the photosensitive elements in the non-shielded area can receive Thermal radiation from a target object; the detection image includes a first image area corresponding to the occlusion area and a second image area corresponding to the non-occlusion area.
  • step 51 is similar to step 21, and details are not repeated here.
  • Step 52 Determine a first pixel value based on the pixel value in the first image area, where the first pixel value is used to represent the intensity of radiation of the lens barrel inside the thermal radiation detector.
  • step 51 may specifically include: determining a first pixel value based on pixel values of all pixels in the first image area. That is, the first pixel value used to characterize the intensity of radiation of the lens barrel inside the thermal radiation detector may be calculated based on the pixel values of all pixels in the first image area.
  • the determining the first pixel value based on the pixel values of all pixels in the first image area may specifically include: when the number of pixels in the first image area is one, determining the pixel value of the pixel. The pixel value is taken as the first pixel value. Therefore, when the number of pixels corresponding to the photosensitive element blocked by the preset element is one, the pixel value of the pixel can be used as the first pixel for characterizing the radiation intensity of the lens barrel inside the thermal radiation detector. value.
  • the determining the first pixel value based on the pixel values of all the pixels in the first image area may specifically include: when the number of pixels in the first image area is multiple, determining the first pixel value.
  • the pixel values of the plurality of pixels are subjected to a first mathematical operation to obtain the first pixel value. Therefore, when the number of pixels corresponding to the photosensitive elements blocked by the preset element is multiple, the mathematical operation result of the pixel values of the multiple pixels can be used as the radiation used to characterize the lens barrel inside the thermal radiation detector.
  • the first pixel value of the intensity may specifically include: when the number of pixels in the first image area is multiple, determining the first pixel value.
  • the pixel values of the plurality of pixels are subjected to a first mathematical operation to obtain the first pixel value. Therefore, when the number of pixels corresponding to the photosensitive elements blocked by the preset element is multiple, the mathematical operation result of the pixel values of the multiple pixels can be used as the radiation used to characterize the lens barrel inside the thermal radiation detector.
  • the first mathematical operation may be flexibly implemented according to requirements.
  • the first mathematical operation may be an average operation.
  • the performing a first mathematical operation on the pixel values of the plurality of pixels to obtain the first pixel value may specifically include: averaging the pixel values of the plurality of pixels to obtain the first pixel value.
  • the pixel values of the multiple pixels may be arithmetically averaged to obtain the first pixel value.
  • the weights of the first pixel values calculated by the plurality of pixels are different, the pixel values of the plurality of pixels may be weighted and averaged to obtain the first pixel value.
  • step 51 may specifically include: determining a first pixel value based on a pixel value of a target pixel in the first image area, where the target pixel is a partial pixel in the first image area. That is, the first pixel value used to characterize the intensity of radiation of the lens barrel inside the thermal radiation detector may be calculated based on pixel values of some pixels in the first image.
  • the determining the first pixel value based on the pixel value of the target pixel in the first image area may specifically include: when the number of the target pixels is one, converting the pixel value of the target pixel to one. as the first pixel value. Therefore, when the number of pixels corresponding to the photosensitive elements blocked by the preset element is multiple, the pixel value of one target pixel in the multiple pixels can be used as the radiation used to characterize the lens barrel inside the thermal radiation detector.
  • the first pixel value of the intensity may specifically include: when the number of the target pixels is one, converting the pixel value of the target pixel to one. as the first pixel value. Therefore, when the number of pixels corresponding to the photosensitive elements blocked by the preset element is multiple, the pixel value of one target pixel in the multiple pixels can be used as the radiation used to characterize the lens barrel inside the thermal radiation detector.
  • the first pixel value of the intensity when the number of pixels corresponding to the photosensitive elements blocked by the preset element is multiple, the pixel value of one target
  • the determining the first pixel value based on the pixel value of the target pixel in the first image area may specifically include: when the number of the target pixels is multiple, determining the first pixel value for a plurality of the target pixels.
  • the pixel value of the pixel is subjected to a second mathematical operation to obtain the first pixel value. Therefore, when the number of pixels corresponding to the photosensitive elements blocked by the preset element is multiple, the mathematical operation result of the pixel values of the multiple target pixels in the multiple pixels can be used to characterize the thermal radiation detector.
  • the first pixel value of the radiation intensity of the inner lens barrel may specifically include: when the number of the target pixels is multiple, determining the first pixel value for a plurality of the target pixels.
  • the pixel value of the pixel is subjected to a second mathematical operation to obtain the first pixel value. Therefore, when the number of pixels corresponding to the photosensitive elements blocked by the preset element is multiple, the mathematical operation result of the pixel values of the multiple target pixels in the multiple pixels can be
  • the second mathematical operation may be flexibly implemented according to requirements.
  • the second mathematical operation may be an average operation.
  • performing the second mathematical operation on the pixel values of the plurality of target pixels to obtain the first pixel value may specifically include: averaging the pixel values of the plurality of target pixels to obtain the first pixel value.
  • a pixel value when the weights of the plurality of target pixels in calculating the first pixel value are all the same, the pixel values of the plurality of target pixels may be arithmetically averaged to obtain the first pixel value. In another embodiment, when the weights of the first pixel values calculated by the plurality of target pixels are different, the pixel values of the plurality of target pixels may be weighted and averaged to obtain the first pixel value.
  • the target pixel may be a pixel corresponding to a photosensitive element located in a non-transition area in the occlusion area; the transition area is a preset determined at the junction between the occlusion area and the non-occlusion area. area.
  • the photosensitive element in the blocking area is blocked by the preset element, due to the existence of the gap, the photosensitive element in the blocking area is near the junction
  • the photosensitive element will still receive the thermal radiation of the target object incident from a certain angle, so that the pixel value of the corresponding pixel of the photosensitive element near the junction is affected by the thermal radiation of the target object, thus affecting the junction near the junction.
  • the pixel value of the corresponding pixel of the photosensitive element represents the accuracy of the radiation intensity of the lens barrel.
  • the target pixel is the pixel corresponding to the photosensitive element located in the non-transition area in the occlusion area, it is possible to avoid using the pixel value in the first image area affected by the thermal radiation of the target object as a reference for determining the temperature of the target object. It is beneficial to improve the temperature measurement accuracy.
  • the size of the transition area is positively related to the vertical distance between the preset element and the photosensitive element array when the shutter is in an open state. Since the greater the vertical distance between the photosensitive element array and the preset element, the more photosensitive elements in the occlusion area can receive the thermal radiation of the target object incident from certain angles, so the size of the transition area is related to the When the shutter is in the open state, the vertical distance between the preset element and the photosensitive element array is positively correlated, so that the range of the transition region can be appropriate.
  • the thermal radiation detector may comprise a metal encapsulated detector or a ceramic encapsulated detector.
  • the thermal radiation detector includes a wafer-level packaged detector or a pixel-level packaged detector.
  • the transition area can be smaller because the photosensitive element can be closer to the optical window of the thermal radiation detector on which the shutter can be located.
  • Step 53 Determine the temperature of the target object with reference to the first pixel value and according to the pixel value in the second image area.
  • step 53 may specifically include: calculating the difference between the pixel value of each pixel in at least a part of the second image area and the first pixel value to obtain the second pixel value of the pixel, and the at least part of the pixel value is obtained.
  • the area corresponds to the target object, and the second pixel value is used to represent the radiation intensity of the target object detected by the pixels in the at least part of the area; and, according to the second pixel value and different pixel values and temperatures The corresponding relationship of the target object is determined, and the temperature of the pixels in the at least part of the region corresponding to the target object is determined.
  • the difference between the pixel values of the pixels A1 to A10 in the detection image 40 and the first pixel value can be calculated respectively to obtain the first pixel values of the pixels A1 to A10 Two pixel values.
  • the pixel values from the pixel value A1 to the pixel value A10 in the detection image 40 can represent the radiation intensity of the target object and the lens barrel together, and the first pixel value is used to represent the radiation dose of the lens barrel Intensity, by calculating the difference between the pixel values of the pixels A1 to A10 in the detected image and the first pixel value, the obtained second pixel values of the pixels A1 to A10 can represent the radiation of the target object detected by the pixels in the area X Quantity strength.
  • the second pixel value of the pixel A1 can represent the radiation intensity of the target object detected by the pixel A1
  • the second pixel value of the pixel A2 can represent the radiation intensity of the target object detected by the pixel A2
  • the second pixel value of the pixel A10 can represent the radiation intensity of the target object detected by the pixel A10.
  • the temperature of the pixel A1 in the partial area X corresponding to the target object can be determined based on the second pixel value of the pixel A1 and the correspondence between different pixel values and temperatures; based on the second pixel value of the pixel A2 and the different pixel values and The corresponding relationship of the temperature, determine the temperature of the pixel A2 in the partial area X corresponding to the target object; ...; Based on the second pixel value of the pixel A10 and the corresponding relationship between different pixel values and temperatures, determine the partial area X corresponding to the target object The temperature of the medium pixel A10.
  • the temperature may be determined by taking the target object as a whole.
  • step 53 may specifically include: performing a third mathematical calculation (for example, averaging) on the pixels in at least part of the second image area to obtain a third pixel value, and the at least part of the area corresponds to the target object , the third pixel value is used to characterize the radiation intensity of the target object and the lens barrel together; the difference between the third pixel value and the first pixel value is calculated to obtain the fourth pixel value, so The fourth pixel value is used to characterize the radiation intensity of the target object; and the temperature of the target object is determined according to the fourth pixel value and the corresponding relationship between different pixel values and temperatures.
  • a third mathematical calculation for example, averaging
  • the pixel values of pixels A1 to A10 in the detection image 40 can be averaged to obtain the third pixel value, and then the third pixel value and the first pixel value can be calculated. The difference between the pixel values yields the fourth pixel value. Since the area X corresponds to the target object, the average of the pixel values from the pixel value A1 to the pixel value A10 in the detection image 40 can represent the radiation intensity of the target object and the lens barrel together, and the first pixel value is used to represent the radiation intensity of the lens barrel.
  • the radiation intensity by calculating the difference between the third pixel value and the first pixel value, the obtained fourth pixel value can represent the radiation intensity of the target object in the area X. Further, the temperature of the target object may be determined based on the fourth pixel value and the corresponding relationship between different pixel values and temperatures.
  • the above-mentioned correspondence between different pixel values and temperatures may be obtained by pre-calibration. It can be seen that the method of determining the temperature of the target object with reference to the first pixel value in the embodiment of the present application only needs to mark the corresponding relationship between a set of pixel values and the temperature, which is different from the traditional technology, which requires a set of calibrations for different shutter temperatures. Compared with the corresponding relationship between the pixel value and the temperature, the calibration workload can be reduced and labor costs can be saved.
  • the first pixel value is determined based on the pixel value in the first image area, and the first pixel value is used to characterize the radiation intensity of the lens barrel inside the thermal radiation detector.
  • Refer to the first pixel value. value and determine the temperature of the target object according to the pixel value in the second image area, so that the target object temperature is determined by referring to the pixel value in the first image area in the same detection image, because the pixel value in the first image area
  • the value can be obtained when the shutter is in an open state, without the need to close the shutter, thus solving the problem that the shutter is opened and closed too frequently in the traditional technology.
  • the temperature of the target object is determined by referring to the detection image obtained by detecting the thermal radiation of the shutter when the shutter is closed, and the detection image is detected at the i-th shutter closing time and the detection image is detected at the i+1-th shutter closing time. Between images, it is necessary to use the detection image detected by closing the shutter for the i-th time to determine the temperature of the target object, and the detection image referenced for determining the temperature of the target object has poor real-time performance.
  • the photosensitive element in the blocked area and the photosensitive element in the non-blocked area receive the same amount of radiation from the lens barrel. Therefore, the temperature measurement result of the temperature measurement method provided by the embodiment of the present application for the target object is not changed by the change of the ambient temperature, and has strong robustness and strong wind resistance.
  • the exposure parameters of the first image area and the second image area may be different.
  • the exposure parameter may be any type of parameter used to control the exposure of the detection image, and exemplarily, the exposure parameter may include exposure time or exposure gain. Because the exposure parameters of the first image area and the second image area are different, the exposure of the first image area and the second image area can be controlled respectively according to requirements, which is beneficial to improve the flexibility of exposure.
  • both the photosensitive element in the non-shielded area and the photosensitive element in the shielded area can receive the thermal radiation of the lens barrel, due to the influence of the occlusion of the preset element, the thermal radiation of the lens barrel is incident to the The angular magnitudes of the photosensitive cells in the non-blocked area and the photosensitive cells in the blocked area are different.
  • the radiation amount of the thermal radiation of the lens barrel received by the photosensitive element is proportional to the angle at which the thermal radiation of the lens barrel is incident on the photosensitive element
  • the photosensitive element in the non-shielded area and the photosensitive element in the shielded area are both proportional to each other. The radiation amount of the thermal radiation received by the lens tube for the same duration is different.
  • the exposure parameters of the first image area and the second image area may satisfy a preset ratio condition, so as to reduce the incidence of thermal radiation of the lens barrel to the photosensitive element in the shielded area
  • the difference in the amount of radiation caused by the angle of the photosensitive element in the non-blocking area is beneficial to improve the temperature measurement accuracy.
  • the characteristics of the photosensitive element in the non-blocked area and the photosensitive element in the blocked area to receive the thermal radiation of the lens barrel are analyzed respectively.
  • two-dimensional radiation is taken as an example for description in conjunction with FIG. 7A and FIG. 7B .
  • the angle at which the thermal radiation of the preset element 32 (equivalent to the thermal radiation of the lens barrel) is incident on the photosensitive element a in the shielding area is in the range of 180°.
  • the spatial solid angle of the photosensitive element in the occlusion area receiving the thermal radiation of the lens barrel is the hemispherical space 2 ⁇ solid angle.
  • the sum of the angles at which the thermal radiation of the lens barrel and the target object is incident on the photosensitive element b in the non-blocking area is 180°, wherein the angle at which the thermal radiation of the target object is incident on the photosensitive element b is ⁇ , The angle at which the thermal radiation of the lens barrel is incident on the photosensitive element b is (180°- ⁇ ).
  • the sum of the spatial solid angles of the photosensitive element in the non-blocking area receiving the thermal radiation of the lens barrel and the target object is the hemispherical space 2 ⁇ solid angle, and the photosensitive element in the non-blocking area receives the thermal radiation of the lens barrel.
  • the spatial solid angle of radiation is 2 ⁇ - ⁇ , wherein ⁇ represents the spatial solid angle of the thermal radiation of the target object entering the photosensitive element array. It should be noted that the spatial solid angle at which the thermal radiation of the target object enters the photosensitive element array is determined by the optical system of the thermal radiation detector, that is, after the optical system of the thermal radiation detector is determined, the photosensitive element array The solid angle of space receiving the thermal radiation of the target object has been determined.
  • the straight line with arrows in FIG. 7A represents the thermal radiation of the preset element
  • the thin line with arrows in FIG. 7B represents the thermal radiation of the lens barrel
  • the thick straight line with arrows in FIG. 7B represents the thermal radiation of the target object. radiation.
  • the preset scale condition is related to the spatial solid angle at which the thermal radiation of the target object enters the photosensitive element array. Therefore, it is beneficial to improve the rationality of the preset ratio condition.
  • the ratio of the angle of incidence of the thermal radiation of the lens barrel to the photosensitive element b is 180°/(180°- ⁇ ), so the ratio of the radiation amount of the thermal radiation of the lens barrel received by the photosensitive element a and the photosensitive element b for the same duration is 180°/(180°- ⁇ ).
  • the ratio of the radiation amount of the thermal radiation of the lens barrel received by the photosensitive element in the shielded area and the photosensitive element in the non-shielded area for the same duration is 2 ⁇ /(2 ⁇ - ⁇ ).
  • the preset ratio condition may include: the ratio of the exposure parameter of the first image area to the exposure parameter of the second image area is (2 ⁇ - ⁇ )/2 ⁇ ; wherein, 2 ⁇ represents Hemispherical space solid angle, ⁇ represents the space solid angle at which the thermal radiation of the target object enters the photosensitive element array. Therefore, under the exposure parameters, the radiation amount of the thermal radiation of the lens barrel received by the photosensitive elements in the shielded area and the non-shielded area can be equal, thereby improving the accuracy of temperature measurement.
  • the blank filled rectangular box in Figure 8 represents the radiation amount of the thermal radiation of the lens barrel received by the photosensitive element in the occluded area
  • the rectangular box filled with vertical stripes represents the light received by the photosensitive element in the non-shielded area.
  • the radiation amount of the thermal radiation of the target object, the rectangular box filled with horizontal stripes represents the radiation amount of the thermal radiation of the lens barrel received by the photosensitive element in the non-shielded area.
  • the pixel values in the detection image can be used to represent the actual amount of radiation.
  • the first pixel value can be used to characterize the radiation amount of the lens barrel inside the thermal radiation detector. Therefore, alternatively, in addition to reducing the incidence of the thermal radiation of the lens barrel from the angle that the exposure parameter satisfies the preset ratio condition, the angle of the photosensitive element in the shielded area and the photosensitive element in the non-shielded area is different due to the difference in angle. In addition to the difference in the amount of radiation brought about, the angle of the thermal radiation of the lens barrel can be reduced from the angle of correcting the first pixel value to the photosensitive element in the occlusion area and the photosensitive element in the non-shielded area. difference in the amount of radiation caused.
  • determining the temperature of the target object with reference to the first pixel value and according to the pixel value in the second image area may specifically include: correcting the first pixel value by using a preset scale factor to obtain The correction result of the first pixel value; the temperature of the target object is determined according to the pixel value in the second image area with reference to the correction result of the first pixel value.
  • the determining the temperature of the target object with reference to the correction result of the first pixel value and according to the pixel value in the second image area may specifically include: calculating at least a The difference between the pixel value of each pixel in the partial area and the correction result of the first pixel value is obtained to obtain the second pixel value of the pixel, the at least part of the area corresponds to the target object, and the second pixel value is characterizing the intensity of radiation of the target object detected by pixels in the at least part of the area; and, according to the second pixel value and the correspondence between different pixel values and temperature, determining the at least part of the target object corresponding to the The temperature of the pixels in the region.
  • the preset scale factor is related to the spatial solid angle of the thermal radiation of the target object entering the photosensitive element array. Therefore, it is beneficial to improve the rationality of the preset proportional coefficient.
  • the preset scale factor is equal to 2 ⁇ /(2 ⁇ - ⁇ ), where 2 ⁇ represents a hemispherical spatial solid angle, and ⁇ represents a spatial solid angle at which the thermal radiation of the target object enters the photosensitive element array.
  • the modifying the first pixel value by using a preset proportional coefficient to obtain a correction result of the first pixel value may specifically include: multiplying the first pixel value and the preset proportional coefficient, as the correction result of the first pixel value.
  • Embodiments of the present application further provide a thermal radiation detector, where the thermal radiation detector may include a shutter, a photosensitive element array, and a controller.
  • the controller is configured to open the shutter when detection is required; when the shutter is in an open state, the photosensitive element array is partially shielded by a preset element of the thermal radiation detector, so that the photosensitive element array It includes a photosensitive element located in a blocking area and a photosensitive element located in a non-blocking area, and the photosensitive element in the non-blocking area function can receive thermal radiation from a target object; the photosensitive element array is used when the shutter is opened.
  • thermal radiation is received to generate a detection image corresponding to the received thermal radiation, and the detection image includes a first image area corresponding to the shielded area and a second image area corresponding to the non-shielded area.
  • the preset element may be a multiplexed element multiplexed with other functions.
  • the preset element may include the shutter for realizing the function of controlling the time that the thermal radiation of the target object illuminates the photosensitive element, such as the shutter 32A in FIG. 3B .
  • the preset element may be a dedicated element for shielding the photosensitive element, and based on this, the thermal radiation detector may further include the preset element.
  • the preset element may be fixed in front of the receiving direction of the photosensitive element array, for example, fixed on the photosensitive element array or on the optical window of the thermal radiation detector.
  • the shutter needs to be closed, and the pixel value of the detection image of the detector is adjusted to a reasonable range through the uniform radiation given by the shutter, and the preset element is fixed.
  • the preset element will be between the shutter and the photosensitive element array when the shutter is closed. Therefore, considering the non-uniformity correction, it can be used in the photosensitive element array in the following two cases.
  • the way of fixing the preset element in front of the receiving direction the first one, when the shutter is closed, when the temperature of the preset element and the shutter are close; or, without the need for non-uniformity calibration case.
  • the thermal radiation detector may further include: a linkage mechanism connected with the shutter, configured to drive the preset element to move into the photosensitive element array while the shutter is opened the front of the receiving direction to form the blocking area. Therefore, when the shutter is opened, the photosensitive element array can be partially shielded by a preset element other than the shutter.
  • a linkage mechanism connected with the shutter, configured to drive the preset element to move into the photosensitive element array while the shutter is opened the front of the receiving direction to form the blocking area. Therefore, when the shutter is opened, the photosensitive element array can be partially shielded by a preset element other than the shutter.
  • the linkage mechanism may also be used to drive the preset element to move out from the front of the receiving direction of the photosensitive element array when the shutter is closed. Therefore, when the shutter is closed, the preset element is not interposed between the photosensitive element array and the shutter, and the influence of the preset element on the non-uniformity calibration of the photosensitive element array can be avoided.
  • the thermal conductivity of the preset element may be greater than the preset thermal conductivity.
  • the thermal conductivity of the preset element is greater than the preset thermal conductivity, so that the preset element can more easily obtain heat from the lens barrel, so that the temperature of the preset element can be as close to the temperature of the lens barrel as possible, which is beneficial to improve the accuracy of temperature measurement .
  • the preset element may be, for example, an aluminum structural member with high thermal conductivity.
  • the preset thermal conductivity can be determined experimentally, for example.
  • the preset element may be far away from other components in the thermal radiation detector except the lens barrel whose temperature is greater than the preset temperature.
  • the preset element can be prevented from obtaining heat from other components as much as possible, so that the temperature of the preset element can be prevented from being affected by other elements.
  • the influence of the device is beneficial to improve the accuracy of temperature measurement.
  • the preset temperature can be determined through experiments, for example.
  • the shielded area includes a non-transition area
  • the transition area is a preset area determined at the boundary between the shielded area and the non-shielded area .
  • the size of the transition area is positively correlated with the vertical distance between the preset element and the photosensitive element array when the door is in an open state.
  • the controller may also be configured to use different exposure parameters to control the exposure of the first image area and the second image area.
  • the exposure parameter includes exposure time or exposure gain. Therefore, the exposure of the first image area and the second image area can be controlled respectively according to requirements, which is beneficial to improve the flexibility of exposure.
  • the exposure parameters of the first image area and the second image area may satisfy a preset ratio condition.
  • the preset scale condition is related to the spatial solid angle at which the thermal radiation of the target object enters the photosensitive element array.
  • the preset ratio condition includes: the ratio of the exposure parameter of the first image area to the exposure parameter of the second image area is (2 ⁇ - ⁇ )/2 ⁇ ; wherein, 2 ⁇ represents the hemispherical spatial solid angle, and ⁇ represents the spatial solid angle at which the thermal radiation of the target object enters the photosensitive element array.
  • the temperature difference between the preset element and the inner barrel of the thermal radiation detector is within a preset range. Therefore, when the shutter is in the open state, the thermal radiation of the preset element can be close to the thermal radiation of the inner lens barrel of the thermal radiation detector, so as to improve the temperature measurement accuracy.
  • the preset range can be determined through experiments, for example.
  • the photosensitive elements in the shielded area and the non-shielded area receive the same amount of radiation from the lens barrel inside the thermal radiation detector.
  • the photosensitive element array when the shutter is in an open state, the photosensitive element array is partially shielded by the preset elements of the thermal radiation detector, so that the photosensitive element array includes the photosensitive element in the shielded area and the photosensitive element in the non-shielded area.
  • the photosensitive elements in the area, the photosensitive elements in the non-blocking area function can receive the thermal radiation from the target object, and the photosensitive element array is used to receive the thermal radiation when the shutter is in an open state to generate a corresponding thermal radiation.
  • a detection image includes a first image area corresponding to an occluded area and a second image area corresponding to a non-occluded area, so that the temperature of the target object can be determined with reference to the pixel values in the first image area in the same detection image, thereby solving the problem.
  • FIG. 9 is a schematic structural diagram of a temperature measurement device based on a thermal radiation detector provided by an embodiment of the present application.
  • the device 90 may include: a processor 91 and a memory 92 .
  • the memory 92 is used to store program codes
  • the processor 91 calls the program code, and when the program code is executed, is configured to perform the following operations:
  • the thermal radiation detector includes the shutter and a photosensitive element array, and when the shutter is in an open state, the photosensitive element array is heated by the thermal radiation.
  • the preset elements of the radiation detector are partially occluded, so that the photosensitive element array includes photosensitive elements in the occlusion area and photosensitive elements in the non-shielded area, and the photosensitive elements in the non-shielded area can receive information from the target object
  • the detection image includes a first image area corresponding to the shielded area and a second image area corresponding to the non-shielded area;
  • the temperature of the target object is determined with reference to the pixel values in the first image area and according to the pixel values in the second image area.
  • the temperature measurement device based on the thermal radiation detector provided in this embodiment can be used to implement the technical solutions of the foregoing method embodiments, and the implementation principles and technical effects thereof are similar to those of the method embodiments, which will not be repeated here.
  • an embodiment of the present application further provides a movable platform, a thermal radiation detector is provided on the movable platform, and the movable platform includes the temperature measurement device based on the thermal radiation detector shown in FIG. 9 .

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Radiation Pyrometers (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)

Abstract

L'invention concerne un procédé et un dispositif (12) de mesure de températures basés sur un détecteur (11) de rayonnement thermique et un détecteur (11) de rayonnement thermique. Ledit procédé consiste à : acquérir une image de détection (40) acquise par un détecteur (11) de rayonnement thermique lorsqu'un obturateur (32A) est en état ouvert, le détecteur (11) de rayonnement thermique comprenant l'obturateur (32A) et un réseau d'éléments photosensibles (31) et, lorsque l'obturateur (32A) est en état ouvert, le réseau d'éléments photosensibles (31) étant partiellement bloqué par un élément prédéfini (32) du détecteur (11) de rayonnement thermique, si bien que le réseau d'éléments photosensibles (31) comprend des éléments photosensibles d'une zone bloquée (31A) et des éléments photosensibles d'une zone non bloquée (31B) et que les éléments photosensibles de la zone non bloquée (31B) peuvent recevoir du rayonnement thermique d'un objet cible, tandis que l'image de détection (40) comprend une première zone d'image (41), correspondant à la zone bloquée (31A) et une seconde zone d'image (42), correspondant à la zone non bloquée (31B) (21) ; et déterminer la température de l'objet cible en référence à des valeurs de pixel de la première zone d'image (41) et selon des valeurs de pixels (A1 à A10) de la seconde zone d'image (42) (22). Ledit procédé peut réduire le nombre d'ouvertures/fermetures de l'obturateur (32A) et résout le problème de fréquence excessive d'ouverture/fermeture de l'obturateur (32A).
PCT/CN2020/141375 2020-12-30 2020-12-30 Procédé et dispositif de mesure de températures basés sur un détecteur de rayonnement thermique et détecteur de rayonnement thermique WO2022141188A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2020/141375 WO2022141188A1 (fr) 2020-12-30 2020-12-30 Procédé et dispositif de mesure de températures basés sur un détecteur de rayonnement thermique et détecteur de rayonnement thermique
CN202080074055.0A CN114616445A (zh) 2020-12-30 2020-12-30 基于热辐射探测器的测温方法、装置及热辐射探测器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/141375 WO2022141188A1 (fr) 2020-12-30 2020-12-30 Procédé et dispositif de mesure de températures basés sur un détecteur de rayonnement thermique et détecteur de rayonnement thermique

Publications (1)

Publication Number Publication Date
WO2022141188A1 true WO2022141188A1 (fr) 2022-07-07

Family

ID=81857962

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/141375 WO2022141188A1 (fr) 2020-12-30 2020-12-30 Procédé et dispositif de mesure de températures basés sur un détecteur de rayonnement thermique et détecteur de rayonnement thermique

Country Status (2)

Country Link
CN (1) CN114616445A (fr)
WO (1) WO2022141188A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4466748A (en) * 1981-06-05 1984-08-21 U.S. Philips Corporation Thermal imaging apparatus
US5760398A (en) * 1995-12-04 1998-06-02 Lockheed Martin Ir Imaging Systems, Inc. Infrared radiation detector having a reduced active area
CN1692627A (zh) * 2002-04-04 2005-11-02 海珀视像公司 使用具有室温光学系统的发射型显微镜的高灵敏度热辐射探测器
CN109282901A (zh) * 2018-11-16 2019-01-29 北京遥感设备研究所 一种非制冷红外系统的分置式挡片校正方法
CN111174916A (zh) * 2018-11-09 2020-05-19 施耐德电器工业公司 用于处理图像的方法
CN111637979A (zh) * 2020-06-17 2020-09-08 上海巨哥电子科技有限公司 基于多色测温的装置、方法及存储介质
CN111982305A (zh) * 2020-08-27 2020-11-24 杭州海康威视数字技术股份有限公司 温度测量方法、装置及计算机存储介质

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06137941A (ja) * 1992-10-27 1994-05-20 Matsushita Electric Works Ltd 赤外線検出素子
US6034371A (en) * 1996-12-20 2000-03-07 Raytheon Company Semi-opaque chopper for thermal imaging system and method
CN102519603A (zh) * 2012-01-10 2012-06-27 北京理工大学 一种可实时去背景的非制冷红外焦平面成像系统
DE102014226342B4 (de) * 2014-12-18 2020-02-20 Robert Bosch Gmbh Wärmebildkamera
DE102016218291A1 (de) * 2016-09-23 2018-03-29 Robert Bosch Gmbh Verfahren zur kontaktfreien Ermittlung einer zweidimensionalen Temperaturin-formation sowie Infrarot-Messsystem
CN110108364A (zh) * 2019-05-08 2019-08-09 武汉高德智感科技有限公司 一种基于黑体定时补偿的可移动人体温度筛选方法及系统
CN111339951A (zh) * 2020-02-26 2020-06-26 北京迈格威科技有限公司 体温测量方法、装置及系统
CN111307299A (zh) * 2020-04-17 2020-06-19 烟台艾睿光电科技有限公司 一种红外测温方法及红外测温热像仪
CN112050948B (zh) * 2020-08-05 2021-12-03 沈阳上博智像科技有限公司 基于探测器温度漂移模型的无挡片红外测温方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4466748A (en) * 1981-06-05 1984-08-21 U.S. Philips Corporation Thermal imaging apparatus
US5760398A (en) * 1995-12-04 1998-06-02 Lockheed Martin Ir Imaging Systems, Inc. Infrared radiation detector having a reduced active area
CN1692627A (zh) * 2002-04-04 2005-11-02 海珀视像公司 使用具有室温光学系统的发射型显微镜的高灵敏度热辐射探测器
CN111174916A (zh) * 2018-11-09 2020-05-19 施耐德电器工业公司 用于处理图像的方法
CN109282901A (zh) * 2018-11-16 2019-01-29 北京遥感设备研究所 一种非制冷红外系统的分置式挡片校正方法
CN111637979A (zh) * 2020-06-17 2020-09-08 上海巨哥电子科技有限公司 基于多色测温的装置、方法及存储介质
CN111982305A (zh) * 2020-08-27 2020-11-24 杭州海康威视数字技术股份有限公司 温度测量方法、装置及计算机存储介质

Also Published As

Publication number Publication date
CN114616445A (zh) 2022-06-10

Similar Documents

Publication Publication Date Title
US10504242B2 (en) Method and device for calibrating dual fisheye lens panoramic camera, and storage medium and terminal thereof
US20230075679A1 (en) Temperature measurement method, temperature measurement apparatus, electronic device and computer-readable storage medium
Budzier et al. Calibration of uncooled thermal infrared cameras
CN109870239B (zh) 非制冷红外焦平面探测器自适应定标方法
CN111751003B (zh) 一种热像仪温度修正系统、方法及热像仪
CN109903241A (zh) 一种tof相机系统的深度图像校准方法及系统
CN109813435B (zh) 静态光反射显微热成像方法、装置及终端设备
JP6540519B2 (ja) 赤外線撮像装置
WO2022037633A1 (fr) Procédé et appareil d'étalonnage destinés à un appareil de prise de vues binoculaire, procédé et appareil de correction d'image destinés à l'appareil de prise de vues binoculaire, support de stockage, terminal et dispositif intelligent
WO2021073069A1 (fr) Mise au point automatique basée sur une détection de profondeur active
EP2767093B1 (fr) Système d'étalonnage de flou pour capteurs électro-optiques et procédé utilisant une constellation à plusieurs cibles multifocale mobile
Chen et al. Corner detection and matching for infrared image based on double ring mask and adaptive SUSAN algorithm
CN103907342A (zh) 利用阻隔红外传感器确定绝对辐射值
CN110836634B (zh) 可适应多种光束的四象限探测器标定方法
CN110310245B (zh) 图像照明分布的修正方法、修正装置及终端
CN111457911A (zh) 一种基于偏振二维残差信息的仿生偏振罗盘标定方法
WO2022141188A1 (fr) Procédé et dispositif de mesure de températures basés sur un détecteur de rayonnement thermique et détecteur de rayonnement thermique
CN113096041A (zh) 图像校正方法及装置
CN112414680A (zh) 低温镜头中透镜的离焦灵敏度系数测试系统和方法
TWI712817B (zh) 在計量工具中藉由影像分級之直接聚焦
CN110673428B (zh) 一种结构光补偿方法、装置及设备
CN115734089A (zh) 半导体光电传感器暗电流的校正方法和系统
CN113039417B (zh) 温度估计装置、温度估计方法、计算机可读存储介质和计算机程序产品
CN113188664B (zh) 红外快速打快门方法、装置以及红外热像仪
WO2022061899A1 (fr) Procédé et dispositif de traitement d'images infrarouges, et caméra à infrarouges

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20967529

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20967529

Country of ref document: EP

Kind code of ref document: A1