Display method, display program and information processing device

Abstract

To provide a display method, a display program and an information processing device for facilitating visual recognition for a difference in temperature between before and after renovation work of an architectural structure.SOLUTION: A display method includes the steps of: acquiring a temperature image having a plurality of pixels indicating a temperature of a measuring target; setting a temperature display range; generating a thermal image by assigning a display color corresponding to each of at least two temperature range segments included in the temperature display range to each pixel of the thermal image; and displaying the thermal image. The measuring target is at least a part of an architectural structure to which renovation work is applied. The temperature display range is set as a range including at least part of the temperature of the architectural structure before the renovation work and at least part of the temperature of the architectural structure after the renovation work.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to a display method, a display program, and an information processing device. [Background technology]

[0002] As described in Patent Document 1, an infrared imaging device is known that displays captured temperature image data on a display unit in color by associating temperature values ​​with colors on a color palette. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-124516 A Summary of the Invention [Problem to be solved by the invention]

[0004] The color palette of the temperature image data displayed by the infrared imaging device corresponds to the range of temperatures from the maximum value to the minimum value included in the temperature image data. That is, the temperature range associated with the color palette differs for each type of temperature image data.

[0005] Here, in order to check the effect of renovation work on a building, temperature image data of the building may be acquired before and after the work. However, even if temperature image data of the building is acquired before and after the work using the above-mentioned infrared imaging device, it is difficult to visually recognize the difference in temperature of the building before and after the work because the temperature ranges associated with the color palettes are different.

[0006] Therefore, an object of the present disclosure is to provide a display method, a display program, and an information processing device that make it easy to visually recognize the difference in temperature before and after renovation work on a building. [Means for solving the problem]

[0007] (1) A display method according to one embodiment of the present disclosure is executed by an information processing device. The display method includes the steps of acquiring a temperature image having a plurality of pixels representing the temperature of a measurement object acquired by photographing the measurement object, setting a temperature display range, generating a thermal image by assigning display colors corresponding to at least two temperature range divisions included in the temperature display range to each pixel of the temperature image, and displaying the thermal image. The measurement object is at least a part of a building undergoing renovation work. The temperature display range is set as a range including the temperature of at least a part of the building before the renovation work is performed and the temperature of at least a part of the building after the renovation work is performed.

[0008] (2) In the step of generating the thermal image of the display method according to (1) above, each division of the temperature range included in the temperature display range may be linearly associated with a display color.

[0009] (3) In the step of generating the thermal image in the display method described in (1) or (2) above, a pre-construction image, which is the thermal image before the construction of the repair work, may be generated based on the temperature image acquired before the construction of the repair work. A post-construction image, which is the thermal image after the construction of the repair work, may be generated based on the temperature image acquired after the construction of the repair work. In the step of displaying the thermal image, the pre-construction image and the post-construction image may be displayed so as to be comparable.

[0010] (4) In the step of setting the temperature display range of the display method according to any one of (1) to (3) above, the temperature display range may be set to different ranges in summer and winter.

[0011] (5) In the step of acquiring the temperature image in the display method according to any one of (1) to (4) above, a visible image captured with visible light may be further acquired. In the step of displaying the thermal image, the visible image may be displayed next to the thermal image.

[0012] (6) In the step of acquiring the temperature image in the display method described in any one of (1) to (5) above, when acquiring the temperature image after the construction of the renovation work, the shooting range when the temperature image was acquired before the construction of the renovation work may be displayed.

[0013] (7) In the step of setting the temperature display range of the display method described in any one of (1) to (6) above, the temperature display range may be set before the renovation work is carried out based on the temperature of the building before the renovation work is carried out and the contents of the renovation work.

[0014] (8) A display program according to an embodiment of the present disclosure causes an information processing device to execute any one of the display methods described in (1) to (7) above.

[0015] (9) An information processing device according to an embodiment of the present disclosure executes the display method according to any one of (1) to (7) above. Effect of the Invention

[0016] According to a display method, a display program, and an information processing device according to an embodiment of the present disclosure, the difference in temperature before and after renovation work on a building can be easily visually recognized. [Brief description of the drawings]

[0017] [Figure 1] 1 is a block diagram showing a configuration example of an information processing system according to the present disclosure. [Figure 2A] 1 is a schematic diagram showing an example of the appearance of a surface on which an imaging unit of an information processing device and an imaging device is located; [Figure 2B] 1 is a schematic diagram showing an example of the appearance of an information processing device and an imaging device on a surface opposite to a surface on which an imaging unit is located; [Diagram 3] 1 is a flowchart illustrating an example of a procedure of a display method according to the present disclosure. [Figure 4A] FIG. 13 is a diagram showing an example of a pre-construction image. [Figure 4B] FIG. 13 is a diagram showing an example of a post-construction image. [Figure 5A] FIG. 13 is a diagram showing an example of a visible image before construction. [Figure 5B] FIG. 13 is a diagram showing an example of a visible image after construction. [Figure 6A] 13 is a pre-construction image generated by a method according to a comparative example. [Figure 6B] 13 is a post-construction image generated by a method according to a comparative example. [Figure 7A] 1 is a pre-construction image generated using the display method of the present disclosure. [Figure 7B] 11 is a post-construction image generated using the display method of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] (Overview of Information Processing System 1) As shown in FIG. 1, an information processing system 1 according to an embodiment of the present disclosure includes an information processing device 10, an imaging device 20, and a database 30.

[0019] The information processing system 1 measures the temperature of a measurement object, and generates and displays an image for visually recognizing the measurement result. In the present disclosure, the measurement object is at least a part of a building on which renovation work is being carried out. The measurement object may be, for example, at least a part of the interior of the building, or at least a part of the exterior of the building. The interior of the building may include a room, a corridor, a staircase, an entrance, etc. The interior of the building may include a ceiling, a floor, an interior wall, a window, etc. The exterior of the building may include a roof, an exterior wall, a window, etc.

[0020] The renovation work may include work to improve the thermal insulation performance of the building. The renovation work may include work to improve the airtightness of the building. The renovation work may include work to improve the air conditioning performance of the building. The renovation work is not limited to these examples and may include various types of work to improve the environment of the building.

[0021] In the information processing system 1, the image capturing device 20 captures infrared images of at least a part of a building as a measurement target before and after a renovation work is performed on the building, and generates a temperature image representing the temperature of the measurement target. The temperature image is an image having a plurality of pixels representing the temperature of the measurement target. As described below, each pixel of the temperature image is associated with a measured value of the intensity of infrared radiation emitted from each part of the measurement target, or the temperature of each part of the measurement target.

[0022] The information processing device 10 generates a thermal image for visually recognizing the temperature of the measurement object by assigning a display color to each pixel of the temperature image generated by the image capturing device 20. The thermal image is an image in which the display color of each pixel corresponds to the temperature of each part of the measurement object.

[0023] The information processing device 10 may generate a thermal image in which the temperature distribution of the object to be measured in the shooting range of the temperature image can be recognized as a distribution of display colors, for example, by assigning a display color to the temperature of each pixel of the temperature image based on a color table that associates temperatures with display colors. In the color table, at least two temperature range divisions included in a predetermined temperature range are each associated with a different display color. The temperature range to which the display colors are associated in the color table is also referred to as a temperature display range. The information processing device 10 can set the temperature display range and display colors as appropriate. Setting examples of the temperature display range and display colors will be described later.

[0024] The image capturing device 20 captures images of at least a portion of the building before and after the renovation work is performed to generate temperature images. The area captured before the renovation work and the area captured after the renovation work may overlap at least in part. The temperature image captured before the renovation work is also referred to as a pre-construction temperature image. The temperature image captured after the renovation work is also referred to as a post-construction temperature image.

[0025] The information processing device 10 generates thermal images based on the pre-application temperature image and the post-application temperature image. The thermal image generated based on the pre-application temperature image is also referred to as a pre-application image. The thermal image generated based on the post-application temperature image is also referred to as a post-application image. The information processing device 10 displays the pre-application image and the post-application image.

[0026] The information processing device 10 generates pre-construction images and post-construction images using the same color table so that a user can visually recognize the change in temperature from at least a part of the building before the renovation work is performed to at least a part of the building after the renovation work is performed as a change in color.

[0027] The information processing device 10 sets the temperature display range of the color table to a range that includes the temperature in at least a part of the overlapping area between the shooting range of the temperature image of the building before the repair work is performed and the shooting range of the temperature image of the building after the repair work is performed, so that the pre-construction image and the post-construction image can be generated using the same color table. In this way, the user can visually recognize the change in temperature before and after the repair work is performed as a change in the display color.

[0028] (Example of configuration of information processing system 1) A specific configuration example of the information processing system 1 will be described below.

[0029] <Information processing device 10> As shown in FIGS. 1, 2A, and 2B, the information processing device 10 includes a control unit 11, a storage unit 12, a communication unit 13, a display unit 14, an input unit 15, and an imaging unit 16.

[0030] The control unit 11 controls each component of the information processing device 10. The control unit 11 may include, but is not limited to, one or more general-purpose processors or a dedicated processor specialized for a specific process. At least a part of the functions of the control unit 11 may be replaced by one or more dedicated circuits. The dedicated circuits may include, for example, a field-programmable gate array (FPGA) or an application specific integrated circuit (ASIC).

[0031] The storage unit 12 stores various information or programs for operating each component of the information processing device 10. The storage unit 12 may store a system program or an application program. The storage unit 12 may include, for example, a semiconductor memory, a magnetic memory, or an optical memory. The storage unit 12 may include an electromagnetic storage medium such as a magnetic disk. The storage unit 12 may include a non-transitory computer-readable medium. The storage unit 12 may function as, for example, a main storage device, an auxiliary storage device, or a cache memory. The storage unit 12 may function as a work memory for the control unit 11. The storage unit 12 may be configured integrally with the control unit 11 or may be configured separately from the control unit 11.

[0032] The communication unit 13 is configured to be able to communicate with the photographing device 20. In this embodiment, the information processing device 10 and the photographing device 20 are directly connected to be able to communicate with each other via a connector. The information processing device 10 and the photographing device 20 may be connected to be able to communicate with each other via a cable. When the information processing device 10 and the photographing device 20 are connected to be able to communicate with each other via a connector or a cable, the communication unit 13 may be configured to include a communication module compatible with various wired communication standards. The communication module may be compatible with various communication standards such as RS-232C, RS-485, or LAN (Local Area Network).

[0033] The information processing device 10 and the photographing device 20 may be connected to be able to communicate wirelessly. When the information processing device 10 and the photographing device 20 are connected to be able to communicate wirelessly, the communication unit 13 may be configured to include a communication module compatible with various wireless communication standards. The communication module may be compatible with various wireless communication standards such as wireless LAN or Bluetooth (registered trademark). The communication module may be compatible with various mobile communication standards such as 4G (4th Generation) or 5G (5th Generation).

[0034] The information processing device 10 and the photographing device 20 may be connected to each other so as to be able to communicate with each other via a network, or may be connected to each other so as to be able to communicate with each other via P2P (Peer to Peer) without the use of a network.

[0035] The communication unit 13 may be configured to be able to communicate with other devices such as the database 30. The communication unit 13 of the information processing device 10 and the database 30 may be connected via a network, or may be connected by P2P without via a network.

[0036] The display unit 14 may include various displays such as a liquid crystal display, an organic EL (Electro-Luminescence) or inorganic EL display, or an LED (Light Emitting Diode) display so as to display various data or information such as images or text. In this embodiment, the display unit 14 is configured as a touch display integrated with an input unit 15 described later. The information processing device 10 may not include the display unit 14. When the information processing device 10 does not include the display unit 14, the data or information may be displayed on an external display device.

[0037] The input unit 15 may include an input device that accepts user input. The input device may include, for example, a touch sensor or a pointing device such as a mouse. The input device may be configured as a touch display integrated with a display. The input device may include physical keys. The input device may include a voice input device such as a microphone. In this embodiment, the input unit 15 is configured as a touch display integrated with the above-mentioned display unit 14. The information processing device 10 may not include the input unit 15. When the information processing device 10 does not include the input unit 15, it may accept user input from an external input device.

[0038] The photographing unit 16 includes a camera or an image sensor that photographs a subject with visible light to generate a visible image. The photographing unit 16 may be attached to the housing of the information processing device 10. In this embodiment, the photographing unit 16 may be installed on the side opposite to the display unit 14 of the smartphone or tablet that is the information processing device 10, i.e., on the back side, as exemplified in FIG. 2A. The photographing unit 16 may also be installed on the same side as the display unit 14, i.e., on the front side. The information processing device 10 does not need to include the photographing unit 16.

[0039] In this embodiment, the information processing device 10 is realized as a mobile terminal such as a smartphone or a tablet. The information processing device 10 may be realized as a computer such as a desktop PC (Personal Computer), a notebook PC, or a tablet PC. The information processing device 10 may be configured to include at least one server. The information processing device 10 is not limited to these examples and may be configured to include various devices.

[0040] The information processing device 10 may be realized using a cloud service, or may be realized in an on-premise environment. The information processing device 10 may be realized in a form in which the cloud service and the on-premise environment are mixed.

[0041] <Photographing Device 20> The photographing device 20 includes an infrared light photographing section 21, a visible light photographing section 22, and a communication section .

[0042] The infrared light photographing unit 21 photographs infrared light radiated from a temperature measurement target to generate a temperature image. The infrared light photographing unit 21 may include a plurality of infrared sensors arranged two-dimensionally. The infrared light photographing unit 21 may further include an optical system that forms an image of infrared light radiated from the measurement target on the array surface of the infrared sensors. Each infrared sensor receives infrared light and measures the intensity of the infrared light radiated from each part of the measurement target.

[0043] The infrared light photographing unit 21 may generate a temperature image by associating the measured values ​​of the infrared intensity by each infrared sensor with each pixel of the temperature image. In other words, each pixel of the temperature image may represent the measured value of the infrared intensity received by each sensor included in the infrared sensor.

[0044] The infrared light photographing unit 21 may convert the measured value of the infrared intensity into the temperature of the part that radiated the infrared light. The infrared light photographing unit 21 may generate a temperature image by associating the temperature converted from the measured value of the infrared intensity by each infrared sensor with each pixel of the temperature image. In other words, each pixel of the temperature image may represent a temperature converted from the measured value of the infrared intensity received by each sensor. In this embodiment, the temperature image is generated so that each pixel represents the temperature of each part of the measurement target.

[0045] The infrared light photographing unit 21 is not limited to the above example, and may be configured in various other ways. For example, when the number of infrared sensors is smaller than the number of pixels of the temperature image, the infrared light photographing unit 21 may be provided with an optical system that regards the measurement object as being divided into a plurality of regions and causes infrared rays emitted from each region of the measurement object to enter the infrared sensor in a time-division manner. Also, the number of infrared sensors may be greater than the number of pixels of the temperature image.

[0046] The visible light imaging section 22 captures an image of an object to be measured for temperature with visible light to generate a visible image. The visible light imaging section 22 may be configured similarly to the imaging section 16 of the information processing device 10.

[0047] 2A , when the photographing device 20 is attached to the information processing device 10, the infrared light photographing unit 21 and the visible light photographing unit 22 may be installed on the rear side of the information processing device 10. The infrared light photographing unit 21 and the visible light photographing unit 22 may be installed on the front side of the information processing device 10.

[0048] The communication unit 23 is communicably connected to the communication unit 13 of the information processing device 10. The communication unit 23 may be configured in accordance with the communication method of the communication unit 13 of the information processing device 10.

[0049] The communication unit 23 outputs the temperature image captured by the infrared light imaging unit 21 or the visible image captured by the visible light imaging unit 22 to the information processing device 10.

[0050] The communication unit 23 may obtain an instruction to shoot from the information processing device 10. In this case, the information processing device 10 executes, for example, a shooting application to accept an input instructing to shoot and outputs the instruction to the shooting device 20.

[0051] The image capturing apparatus 20 may include an operation unit that receives an input of an instruction to capture an image, and may obtain the instruction to capture an image based on the input to the operation unit.

[0052] The photographing device 20 may include a storage unit that stores the temperature image photographed by the infrared light photographing unit 21 or the visible image photographed by the visible light photographing unit 22. The storage unit of the photographing device 20 may be configured similarly to the storage unit 12 of the information processing device 10.

[0053] The photographing device 20 may include a control unit that controls each component of the photographing device 20. The control unit of the photographing device 20 may be configured similarly to the control unit 11 of the information processing device 10.

[0054] At least a part of the functions of the image capturing device 20 may be realized by the information processing device 10. In other words, the information processing device 10 may be configured integrally with at least a part of the image capturing device 20.

[0055] The information processing system 1 does not need to include the imaging device 20. When the information processing system 1 does not include the imaging device 20, the information processing device 10 may obtain a temperature image from outside the information processing system 1.

[0056] <Database 30> The database 30 may be configured to include at least one server. The database 30 may be configured to include, for example, a semiconductor memory, a magnetic memory, an optical memory, or the like. The database 30 may be configured to include an electromagnetic storage medium such as a magnetic disk. The database 30 may be configured to include a communication module configured to be able to communicate with other devices such as the information processing device 10.

[0057] The database 30 may be realized using a cloud service, or may be realized in an on-premise environment. The database 30 may be realized in a form in which the cloud service and the on-premise environment are mixed.

[0058] At least a part of the functions of the database 30 may be realized by the information processing device 10. In other words, the information processing device 10 may be configured integrally with at least a part of the database 30.

[0059] The information processing system 1 may not include the database 30. When the information processing system 1 does not include the database 30, the function of the database 30 may be realized by the storage unit 12 of the information processing device 10. In other words, the database 30 may be included in the information processing device 10. The database 30 or the storage unit 12 is also collectively referred to as a storage device.

[0060] (Example of operation of information processing system 1) In the information processing system 1 according to the present disclosure, the information processing device 10 generates a thermal image representing the temperature of at least a part of a building to be measured as a pre-construction image before construction of a renovation work on the building, and generates a post-construction image after construction. The information processing device 10 displays the pre-construction image and the post-construction image so that the user can visually recognize the change in temperature before and after construction.

[0061] <Example of how to display the procedure> Hereinafter, an operation will be described in which the control unit 11 of the information processing device 10 executes a display method including the steps of the flowchart exemplified in Fig. 3 to display a pre-construction image and a post-construction image so that a user can visually recognize a change in temperature before and after the construction of a building renovation work. The display method may be realized as a display program executed by the control unit 11. The display program may be stored in a non-transitory computer-readable medium.

[0062] The control unit 11 sets the temperature display range (step S1). As described above, the before-construction image and the after-construction image are displayed so that the user can visually recognize the change in temperature before and after the construction of the building renovation work as a change in display color. To achieve this, the control unit 11 matches the color table used when generating a before-construction image from the before-construction temperature image with the color table used when generating a after-construction image from the after-construction temperature image. In other words, the control unit 11 generates the before-construction image and the after-construction image using the same color table.

[0063] The control unit 11 sets the temperature display range of the color table as a range including the temperature of at least a part of the building before the repair work is performed and the temperature of at least a part of the building after the repair work is performed so that the pre-construction image and the post-construction image can be generated using the same color table. The control unit 11 may set the temperature display range as a range including the temperature of a part included in the shooting range of the temperature image of the building before the repair work is performed and the temperature of a part included in the shooting range of the temperature image of the building after the repair work is performed. The control unit 11 may set the temperature display range as a range including the temperature of a part that overlaps between the shooting range of the temperature image of the building before the repair work is performed and the shooting range of the temperature image of the building after the repair work is performed.

[0064] The control unit 11 specifies whether the measurement target for which a temperature image is to be acquired in the procedure of step S2 described below is the building before the repair work is performed or the building after the repair work is performed. The control unit 11 may accept an input from the user at the input unit 15 and specify whether the measurement target is the building before the repair work is performed or the building after the repair work is performed.

[0065] When the measurement target is a building after repair work is performed, the control unit 11 sets the temperature display range to the same as when the temperature image was acquired before the repair work was performed on the building. When the measurement target is a building before repair work is performed, the control unit 11 sets the temperature display range as described below.

[0066] The control unit 11 may set the temperature display range based on the statistical values ​​of temperatures in the area where the building to be measured is located so that the temperatures before and after the repair work are included in the temperature display range. The control unit 11 may set the temperature display range based on the time when a pre-construction temperature image and a post-construction temperature image, which are temperature images before and after construction, are generated. The control unit 11 may set the temperature display range when a temperature image is generated in hot season or summer to a different range from the temperature display range when a temperature image is generated in cold season or winter. In other words, the control unit 11 may set the temperature display range to a different range between summer and winter.

[0067] When the temperature measurement target is a building, the temperature inside the building is different from the temperature outside. The external environment of the building, such as sunlight or air temperature, affects the temperature of the building. For example, when the temperature inside the building in summer is the measurement target, the control unit 11 may set the temperature display range to a range from 10°C to 40°C. For example, when the temperature inside the building in winter is the measurement target, the control unit 11 may set the temperature display range to a range from 5°C to 35°C.

[0068] The control unit 11 may set the temperature display range based on the shape of the building to be measured. The building shape may be classified as wooden or reinforced concrete, etc. The building shape may be classified as one-story, two-story, three or more stories, etc. The control unit 11 may set the temperature display range based on the location of the building to be measured. The location of the building to be measured may be classified as the exterior or interior of the building. The exterior of the building may be classified as the roof or walls, etc. The interior of the building may be classified as the living room, bathroom, toilet, kitchen, hallway, entrance, etc. of the building. The interior of the building may be classified as the ceiling, walls, floor, etc.

[0069] The control unit 11 may set the temperature display range based on the contents of the renovation work carried out on the measurement target. The renovation work may include work to improve the thermal insulation performance of the building. The renovation work may include work to improve the airtightness of the building. The renovation work may include work to improve the air conditioning performance of the building. The renovation work is not limited to these examples and may include various types of work to improve the environment of the building.

[0070] The control unit 11 may set the temperature display range based on the type of air conditioning equipment installed in the building to be measured. The type of air conditioning equipment may be classified, for example, into air conditioners, underfloor heating and cooling, etc.

[0071] The control unit 11 may set the temperature display range based on various factors, not limited to the above-mentioned examples.

[0072] The control unit 11 may estimate the temperature of the building after the renovation work is performed before the renovation work is performed on the building to be measured. For example, the control unit 11 may estimate the temperature of the building after the renovation work is performed based on the measured value of the temperature of the building before the renovation work and the details of the renovation work before the renovation work is performed on the building to be measured. The control unit 11 may set the temperature display range to include the measured value of the temperature of the building before the renovation work and the estimated value of the temperature of the building after the renovation work is performed. In other words, the control unit 11 may set the temperature display range based on the temperature of the building before the renovation work and the details of the renovation work before the renovation work is performed.

[0073] By setting the temperature display range to include the temperatures before and after the renovation work is carried out, and by associating a display color with the temperature included in the temperature display range, the user can visually recognize the change in temperature before and after the renovation work is carried out as a change in display color.

[0074] The correspondence between the temperatures included in the temperature display range and the display colors is set by a color table. The color table may be set so as to divide the temperature display range into at least two temperature ranges and to associate different display colors with the respective temperature range divisions.

[0075] The temperature display range may be divided according to the temperature measurement resolution of the image capturing device 20. The temperature measurement resolution of the image capturing device 20 is a numerical value that is the smallest unit when the image capturing device 20 converts the intensity of infrared rays into temperature. The temperature measurement resolution of the image capturing device 20 may be determined by the specifications of the image capturing device 20.

[0076] The temperature display range may be divided, for example, based on the measurement resolution of the temperature in the temperature image. That is, the temperature display range may be divided into a plurality of measurement values ​​that are discretely determined based on the measurement resolution of the temperature in the temperature image. For example, if the measurement resolution of the temperature is 0.1°C, the temperature display range may be divided in increments of 0.1°C.

[0077] The temperature display range may be divided to include a plurality of measurement values ​​that are discretely determined based on the measurement resolution of the temperature in the temperature image. If the measurement resolution of the temperature is 0.1°C, the temperature display range may be divided into ranges including, for example, five measurement values, so that the temperature display range is divided in increments of 0.5°C.

[0078] In this embodiment, the temperature display range is divided based on the measurement resolution of the temperature in the temperature image. The control unit 11 sets a color table so that different display colors are associated with each division of the temperature display range. The display colors associated with each division of the temperature display range in the color table may be colors of each wavelength included in the wavelength range of visible light. For example, the display colors associated with each division of the temperature display range may be colors of shorter wavelengths for lower temperatures and colors of longer wavelengths for higher temperatures. If the temperature display range is divided into six temperature ranges, the display colors associated with each of the six divisions may be indigo, blue, green, yellow, orange, and red, in order from the division with the lowest temperature. A temperature lower than the lower limit of the temperature display range may be associated with black. A temperature higher than the upper limit of the temperature display range may be associated with white.

[0079] The temperature display range may be divided so that each section corresponds to a display color that changes continuously to the extent that the boundaries are not discernible to the naked eye. The display colors may be gradually changed from a temperature corresponding to indigo blue in the temperature display range to a lower limit temperature of the temperature display range, and the display colors may be gradually changed from a temperature corresponding to red in the temperature display range to a temperature corresponding to an upper limit temperature of the temperature display range, and the display colors may be gradually changed to white.

[0080] In the color table, each temperature included in the temperature display range may be associated with a grayscale display color. For example, the lower limit temperature of the temperature display range may be associated with black. The upper limit temperature of the temperature display range may be associated with white. The display color associated with each division of the temperature display range may be set to gradually change from black to white from low to high temperatures. In other words, the higher the temperature of the division of the temperature display range, the higher the brightness of the display associated with each division may be set.

[0081] The control unit 11 may linearly correspond the temperature range divisions included in the temperature display range to the display colors in the color table. When the display colors are expressed in grayscale, the linear correspondence between the temperature range divisions and the display colors means that the relationship between the temperature value and the grayscale brightness of the display colors is expressed as a linear function. In other words, it means that the value obtained by subtracting the lower limit of the temperature display range from the temperature value and the grayscale brightness of the display colors are proportional, that is, linear. When the display colors are colors of each wavelength included in the wavelength range of visible light, and the lower the temperature, the shorter the wavelength of the color, and the higher the temperature, the longer the wavelength of the color, the linear correspondence between the temperature range divisions and the display colors means that the relationship between the temperature value and the wavelength of the display colors is expressed as a linear function. In other words, it means that the value obtained by subtracting the lower limit of the temperature display range from the temperature value and the wavelength of the display colors are proportional, that is, linear. By linearly corresponding the temperature range divisions and the display colors, the user can easily understand the relationship between the display colors and the temperature.

[0082] The control unit 11 may associate the temperature range divisions included in the temperature display range with the display colors in a non-linear relationship, i.e., non-linear, in the color table. The control unit 11 may make the amount of change in the brightness of the grayscale in adjacent divisions of the temperature display range different for at least some divisions. The control unit 11 may make the amount of change in the wavelength of the display color in adjacent divisions of the temperature display range different for at least some divisions. The control unit 11 may make the width of the temperature range division in one part of the temperature display range different from the width of the division in the other part, thereby making the temperature range divisions and the display colors correspond non-linearly. For example, the control unit 11 may increase the amount of change in the brightness of the grayscale or the wavelength of the display color in adjacent divisions in a range where it is desired to emphasize the difference in temperature, and decrease the amount of change in the brightness of the grayscale or the wavelength of the display color in adjacent divisions in other ranges.

[0083] The above describes an example of the operation of setting the temperature display range when the measurement target is a building before renovation work is performed. When the measurement target is a building after renovation work is performed, the control unit 11 may set the temperature display range to the same as when the temperature image was acquired before the renovation work of the building.

[0084] The control unit 11 may store the set temperature display range and color table in the storage unit 12 or the database 30.

[0085] The control unit 11 acquires a temperature image (step S2). Specifically, the control unit 11 acquires the temperature image from the photographing device 20 by the communication unit 13. The control unit 11 may output a photographing instruction to the photographing device 20 via the communication unit 13. In this case, the photographing device 20 may photograph the measurement target in response to the photographing instruction, generate a temperature image, and output it to the information processing device 10. When a user inputs a photographing instruction to an operation unit of the photographing device 20, the photographing device 20 may photograph the measurement target, generate a temperature image, and output it to the information processing device 10. The control unit 11 acquires the temperature image generated by the photographing device 20.

[0086] The control unit 11 generates a thermal image (step S3). The control unit 11 generates a thermal image by assigning a display color to the temperature of each pixel of the temperature image using the color table set in the procedure of step S1.

[0087] The control unit 11 executes the procedure from step S1 to S3 to determine whether the measurement target for which a thermal image has been generated is a building before the repair work is executed (step S4). A building before the repair work is executed is also called a pre-construction building. If the measurement target is a pre-construction building (step S4: YES), the control unit 11 stores the thermal image generated in the procedure of step S3 as a pre-construction image in the database 30 or the storage unit 12 of the information processing device 10 (step S5). In summary, the procedures of steps S3 and S5 are that the control unit 11 generates a pre-construction image, which is a thermal image before the repair work is executed, based on a temperature image acquired before the repair work is executed, i.e., a pre-construction temperature image, and stores the image in a storage device such as the database 30 or the storage unit 12. After executing the procedure of step S5, the control unit 11 ends the execution of the procedure of the flowchart in FIG. 3. After executing the procedure of step S5, the control unit 11 may return to the procedure of step S1. In the procedure of step S5, the control unit 11 may display the pre-construction image on the display unit 14.

[0088] If the measurement target is not a pre-construction building (step S4: NO), the control unit 11 determines whether the measurement target for which the procedure from steps S1 to S3 has been performed is a building after repair work has been performed (step S6). A building after repair work has been performed is also called a post-construction building. If the measurement target is not a post-construction building (step S6: NO), the control unit 11 ends the execution of the procedure in the flowchart of Fig. 3. If the measurement target is not a post-construction building (step S6: NO), the control unit 11 may return to the procedure of step S1.

[0089] If the measurement target is a post-construction building (step S6: YES), the control unit 11 displays the thermal image generated in the procedure of step S3 as a post-construction image on the display unit 14 (step S7). The control unit 11 reads out the pre-construction image stored in the database 30 or the storage unit 12 in the procedure of step S5 and displays it on the display unit 14 (step S8). In summary, the procedures of steps S3, S7, and S8 are that the control unit 11 generates a post-construction image, which is a thermal image after the construction of the repair work, based on the temperature image acquired after the construction of the repair work, i.e., the post-construction temperature image, and displays the pre-construction image and the post-construction image generated in the procedures of steps S3 and S5 so as to be comparable. After executing the procedure of step S8, the control unit 11 ends the execution of the procedure of the flowchart in FIG. 3.

[0090] As described above, the control unit 11 can execute the steps of the flowchart illustrated in Figure 3 to display pre-construction images and post-construction images so that the user can visually recognize the change in temperature of at least a part of the building before and after the renovation work is performed.

[0091] The control unit 11 may execute the procedure of acquiring a temperature image in step S2 before executing the procedure of setting the temperature display range in step S1. In this case, the control unit 11 may specify whether the measurement target of the temperature image is a pre-construction building or a post-construction building when acquiring the temperature image or after acquiring the temperature image. When the control unit 11 specifies that the measurement target of the temperature image is a pre-construction building, it recognizes the acquired temperature image as a pre-construction temperature image, and generates a pre-construction thermal image in the procedure of step S3. When the control unit 11 specifies that the measurement target of the temperature image is a post-construction building, it recognizes the acquired temperature image as a post-construction temperature image, and generates a post-construction thermal image in the procedure of step S3.

[0092] In the procedure of step S7, the control unit 11 may not immediately display the post-construction image on the display unit 14, but may temporarily store the post-construction image in the database 30 or the storage unit 12, and later read the post-construction image from the database 30 or the storage unit 12 and display it on the display unit 14. For example, when an operation input instructing the display of a thermal image is received at the input unit 15, the control unit 11 may read the pre-construction image and the post-construction image from the database 30 or the storage unit 12 and display them on the display unit 14.

[0093] When the control unit 11 reads out and displays the pre-construction image in step S8, it selects and reads out the pre-construction image corresponding to the post-construction image displayed in step S7. The pre-construction image and the post-construction image may be associated with each other such that the measurement target of the pre-construction image and the measurement target of the post-construction image match each other.

[0094] The control unit 11 may acquire information for identifying the respective measurement targets of the pre-construction image and the post-construction image in order to determine whether the measurement target of the pre-construction image and the measurement target of the post-construction image match. The information for identifying the measurement target may include information for identifying the building of the measurement target. The information for identifying the building may include the name, address, or location data by satellite positioning of the building. The information for identifying the measurement target may include information for identifying the shooting location of the building of the measurement target. The shooting location of the building may be divided into the exterior or interior of the building. The exterior of the building may be divided into the roof, walls, etc. The interior of the building may be divided into the living room, bathroom, toilet, kitchen, corridor, entrance, etc. of the building. The interior of the building may be divided into the ceiling, walls, floor, etc.

[0095] The information for identifying the measurement target may include the position of the photographing device 20 when photographing the measurement target, or the photographing direction or the photographing magnification of the photographing device 20. The control unit 11 may determine that the measurement target of the pre-construction image and the measurement target of the post-construction image match when the deviation between the position of the photographing device 20 when photographing the pre-construction temperature image and the position of the photographing device 20 when photographing the post-construction temperature image is within a predetermined distance. The control unit 11 may determine that the measurement target of the pre-construction image and the measurement target of the post-construction image match when the deviation between the photographing direction of the photographing device 20 when photographing the pre-construction temperature image and the photographing direction of the photographing device 20 when photographing the post-construction temperature image is within a predetermined angle. The control unit 11 may determine that the measurement target of the pre-construction image and the measurement target of the post-construction image match when the deviation between the photographing magnification of the photographing device 20 when photographing the pre-construction temperature image and the photographing magnification of the photographing device 20 when photographing the post-construction temperature image is within a predetermined value.

[0096] The position of the photographing device 20 when the user photographs the measurement target, or the photographing direction or the photographing magnification of the photographing device 20, is determined by the user. In order to match the measurement target in the pre-construction image with the measurement target in the post-construction image, the user needs to reproduce the position of the photographing device 20, or the photographing direction or the photographing magnification of the photographing device 20 before construction in the photographing after construction.

[0097] When the user photographs the measurement target after the repair work is performed, the control unit 11 may display on the display unit 14 the photographing range of the measurement target before the repair work is performed. In other words, when acquiring a temperature image of the measurement target after the repair work is performed, the control unit 11 may display on the display unit 14 the photographing range when the temperature image of the measurement target was acquired before the repair work is performed.

[0098] The control unit 11 may display a pre-measurement image as the shooting range of the measurement target before construction. The control unit 11 may display a visible image captured with visible light before construction as the shooting range of the measurement target before construction. The control unit 11 may generate a wireframe image from the pre-measurement image or the visible image before construction and display it as the shooting range of the measurement target before construction. The control unit 11 may display points or lines representing characteristic points of the measurement target as the shooting range of the measurement target before construction.

[0099] The control unit 11 may display the measurement target after construction on the display unit 14 so that it can be compared with the shooting range of the measurement target before construction. The control unit 11 may display the shooting range of the measurement target before construction and the measurement target after construction in an overlapping manner. The control unit 11 may display the shooting range of the measurement target before construction as a transparent image, thereby superimposing it on the measurement target after construction. The control unit 11 may display the measurement target after construction as a transparent image, thereby superimposing it on the shooting range of the measurement target before construction. The control unit 11 may display the shooting range of the measurement target before construction and the measurement target after construction side by side. The user can easily match the shooting range of the measurement target after construction to the shooting range of the measurement target before construction by comparing the shooting range of the measurement target before construction and the measurement target after construction.

[0100] The control unit 11 may relax the conditions for the shift in the position of the photographing device 20, the shift in the photographing direction of the photographing device 20, or the shift in the photographing magnification of the photographing device 20, so as to make it easier to determine that the measurement object photographed before and after construction is the same.

[0101] The control unit 11 may execute, for example, the following procedure in order to read out and display the pre-construction image corresponding to the post-construction image in the procedure of step S8. When storing the pre-construction image in step S5, the control unit 11 may store information for identifying the measurement target of the pre-construction image in the database 30 or the storage unit 12 together with the pre-construction image. When displaying the post-construction image in step S7, the control unit 11 may acquire information for identifying the measurement target of the post-construction image. In step S8, the control unit 11 may compare the information for identifying the measurement target of the pre-construction image stored in the database 30 or the storage unit 12 with the information for identifying the measurement target of the post-construction image displayed in step S7. The control unit 11 may identify the pre-construction image corresponding to the post-construction image displayed in step S7 and read it out from the database 30 or the storage unit 12.

[0102] The control unit 11 may acquire at least one of a pre-construction image and a post-construction image from outside, and display the pre-construction image and the post-construction image on the display unit 14.

[0103] <Examples of before and after images> As described above, the control unit 11 can display the pre-construction image and the post-construction image on the display unit 14 by executing the display method including the procedure example illustrated in FIG. 3. FIG. 4A shows a first thermal image 100 as an example of the pre-construction image. FIG. 4B shows a second thermal image 200 as an example of the post-construction image. The measurement object of the pre-construction image of FIG. 4A and the post-construction image of FIG. 4B is a room of a house. FIG. 5A shows a first visible image 150 as a visible image of the measurement object before the repair work is performed, that is, the room of the house from which the pre-construction image of FIG. 4A was taken. FIG. 5B shows a second visible image 250 as a visible image of the measurement object after the repair work is performed, that is, the room of the house from which the post-construction image of FIG. 4B was taken.

[0104] Corresponding parts of the first thermal image 100 of Figure 4A and the first visible image 150 of Figure 5A are commonly labeled. Common labeling includes the floor 110, walls 112, ceiling 114, occupant 120, and heat source 122. Heat source 122 is a stove.

[0105] Corresponding parts in the second thermal image 200 of Figure 4B and the second visible image 250 of Figure 5B are labeled with common reference numbers, including a floor 210, walls 212, a ceiling 214, an occupant 220, and a heat source 222. The heat source 222 is an air outlet for an air conditioner.

[0106] A color table that associates the temperature of the first thermal image 100 and the second thermal image 200 with the display color is displayed as a temperature scale on the right edge of each thermal image. The temperature display range of the color table in Figures 4A and 4B is set to a range from 5°C to 35°C.

[0107] The thermal images shown in Figures 4A and 4B are images obtained by converting a full-color thermal image into a grayscale thermal image, and are converted so that the longer the wavelength of the display color, the higher the luminance. In Figures 4A and 4B, in order to clarify the correspondence between the full-color display colors before conversion and the grayscale display colors after conversion, general names of the full-color display colors corresponding to some divisions of the color table are displayed. Specifically, the names of the full-color display colors are displayed in order from the lowest temperature division, as follows: black, indigo, blue, green, yellow, orange, red, and white.

[0108] In the first thermal image 100 of FIG. 4A, i.e., the image before construction, the display color of the floor 110 and the wall 112 is blue. The display color of the ceiling 114 is green. The display color of the occupant 120 is red. The display color of the heat source 122 is white. On the other hand, in the second thermal image 200 of FIG. 4B, i.e., the image after construction, the display color of the floor 210 is green. The display colors of the walls 212 and the ceiling 214 are yellow. The display colors of the occupant 220 and the heat source 222 are red. Comparing the image before construction of FIG. 4A with the image after construction of FIG. 4B, it can be seen that the temperature of the measurement target changes before and after the construction of the renovation work.

[0109] The control unit 11 may display the pre-construction image of FIG. 4A and the post-construction image of FIG. 4B on the display unit 14 so that the user can visually compare them. The control unit 11 may simultaneously display the pre-construction image of FIG. 4A and the post-construction image of FIG. 4B on the display unit 14. The control unit 11 may display the pre-construction image of FIG. 4A and the post-construction image of FIG. 4B side-by-side or vertically on the display unit 14. The control unit 11 may switch between displaying the pre-construction image of FIG. 4A and the pre-construction image of FIG. 4B in the same range of the display unit 14 in a time-division manner.

[0110] The control unit 11 displays the pre-construction image and the post-construction image so that the user can compare them, and the user can easily visually recognize that a room in a house after renovation work has been carried out is warmer than a room in the house before the renovation work was carried out.

[0111] <Comparison with Comparative Examples> As a comparative example, a temperature display range may be set from the minimum to maximum temperatures of each pixel included in the temperature image. An example of generating a thermal image of the entrance and corridor of a residence as the measurement target will be described below.

[0112] FIG 6A shows a thermal image generated by a method according to a comparative example, with the entrance and hallway of a dwelling unit before renovation work is performed as the measurement objects. The thermal image before construction generated by the method according to the comparative example is also referred to as a comparative image before construction. FIG 6B shows a thermal image generated by a method according to a comparative example, with the entrance and hallway of a dwelling unit after renovation work is performed as the measurement objects. The thermal image after construction generated by the method according to the comparative example is also referred to as a comparative image after construction. The comparative image before construction and the comparative image after construction are generated so that their respective shooting ranges are the same.

[0113] The temperature display range of the color table used to generate the before-renovation comparison image is set to a range of 10°C to 16°C. The temperature display range of the color table used to generate the after-renovation comparison image is set to a range of 16°C to 20°C. In other words, the temperature display range after the renovation work is performed is higher than the temperature display range before the renovation work is performed, because the renovation work has warmed the entire dwelling unit.

[0114] However, because the temperature display ranges of the pre-construction comparative image in Fig. 6A and the post-construction comparative image in Fig. 6B are different, the difference in display color between the pre-construction comparative image and the post-construction comparative image is small. In other words, even though the temperature of the dwelling unit after construction is higher than the temperature of the dwelling unit before construction, this temperature change does not appear as a difference in display color between the pre-construction comparative image and the post-construction comparative image. Therefore, if a user visually compares the pre-construction comparative image in Fig. 6A and the post-construction comparative image in Fig. 6B without recognizing the temperature display range, the user will have difficulty visually recognizing the change in temperature before and after the renovation work.

[0115] On the other hand, FIG. 7A shows a pre-construction image generated by the display method according to the present disclosure for the same measurement object as the comparative example. FIG. 7B shows a post-construction image generated by the display method according to the present disclosure for the same measurement object as the comparative example. The temperature display range of the color table used to generate the pre-construction image of FIG. 7A and the post-construction image of FIG. 7B is set to a range from 5°C to 35°C as a range common to both. By setting a temperature display range common to both the pre-construction image and the post-construction image, the temperature change of the dwelling before and after construction appears as a difference between the display color of the pre-construction image and the display color of the post-construction image. Therefore, when a user visually checks and compares the pre-construction image of FIG. 7A and the post-construction image of FIG. 7B, the user can easily visually recognize the change in temperature before and after the construction of the renovation work.

[0116] <Summary> As described above, according to the information processing system 1, the display method, and the display program of the present embodiment, when generating thermal images before and after the construction of a renovation work with at least a part of a building as a measurement target, a common temperature display range is set. By setting a common temperature display range, the difference in temperature appears in the thermal image as a difference in display color. As a result, the difference in temperature before and after the construction of the renovation work of the building can be visually recognized easily. In addition, the user can check the difference in temperature before and after the construction of the renovation work without worrying about the temperature display range.

[0117] (Other embodiments) Other embodiments of the information processing system 1, the display method, and the display program will be described below.

[0118] <Display mode of visible image> As described above, the photographing device 20 photographs the measurement target with infrared light using the infrared light photographing section 21 to generate a temperature image. The photographing device 20 also photographs the measurement target with visible light using the visible light photographing section 22 to generate a visible image. The photographing device 20 may simultaneously perform photographing using the infrared light photographing section 21 and photographing using the visible light photographing section 22. The photographing device 20 may be configured such that the photographing range of the temperature image and the photographing range of the visible image coincide with each other when photographing using the infrared light photographing section 21 and photographing using the visible light photographing section 22 are simultaneously performed.

[0119] The control unit 11 may acquire both a visible image and a temperature image from the photographing device 20. The control unit 11 generates a thermal image from the temperature image. The control unit 11 may display the visible image acquired together with the temperature image on the display unit 14 alongside the thermal image generated from the temperature image.

[0120] The control unit 11 may display a visible image of the measurement target taken with visible light before construction and a thermal image of the measurement target before construction, i.e., a pre-construction image, side by side on the display unit 14. The control unit 11 may display a visible image of the measurement target taken with visible light after construction and a thermal image of the measurement target after construction, i.e., a post-construction image, side by side on the display unit 14.

[0121] Since the control unit 11 can acquire both the visible image and the temperature image, it is easy to display the thermal image generated from the temperature image in association with the visible image. If the visible image is acquired separately from the thermal image, the user needs to search for and display the visible image corresponding to the thermal image, or search for and display the thermal image corresponding to the visible image. According to the present disclosure, the user does not need to search for the visible image or thermal image, improving user convenience.

[0122] By displaying the visible image alongside the thermal image, the user can easily recognize which part of the object is represented by the temperature in the thermal image. For example, in the second thermal image 200 of FIG. 4B, it is difficult to distinguish the boundary between the wall 212 and the ceiling 214. However, by displaying the second visible image 250 of FIG. 5B alongside the second thermal image 200, the user can easily recognize the structure of the object that is difficult to recognize in the second thermal image 200.

[0123] When the temperature display range is made common before and after construction, the temperature difference in each part of the shooting range of the temperature image becomes small relative to the temperature display range. The small temperature difference results in a small change in display color in the thermal image generated from the temperature image. The small change in display color in the thermal image makes it difficult for a user to recognize the structure of the measurement target by just looking at the thermal image. Therefore, when the temperature display range is made common before and after construction, displaying a visible image alongside a thermal image is even more useful for a user to recognize the structure of the measurement target.

[0124] The control unit 11 may obtain at least one of a thermal image and a visible image from outside, and display the thermal image and the visible image side by side.

[0125] <Another example of setting the temperature display range> As described above, when generating a pre-application image, the control unit 11 may estimate the temperature of the object to be measured after application, and set a single temperature display range to include the measured temperature value before application and the estimated temperature value after application.

[0126] As another example, when generating a pre-construction image, the control unit 11 may set a plurality of temperature display ranges and generate a thermal image using a color table in which a display color is associated with each temperature display range. That is, the control unit 11 may generate a pre-construction image with a plurality of temperature display ranges. When generating a post-construction image, the control unit 11 may obtain the measured value of the temperature after construction from the post-construction temperature image. The control unit 11 may set the temperature display range so as to include the measured value of the temperature after construction. In this case, the control unit 11 may appropriately select a temperature display range that includes both the measured value of the temperature before construction and the measured value of the temperature after construction by selecting a temperature display range that includes the measured value of the temperature after construction from the plurality of temperature display ranges used when generating the pre-construction image.

[0127] By generating a pre-construction image with multiple temperature display ranges, the control unit 11 can set a temperature display range that includes both the temperature before construction and the temperature after construction without widening the temperature display range too much. In this way, the display color changes appropriately in response to the change in temperature. As a result, the user can easily visually recognize the change in temperature before and after the construction of the renovation work.

[0128] <Other configuration examples of information processing system 1> In the information processing system 1, the information processing device 10 may acquire a temperature image from the photographing device 20, generate a thermal image from the acquired temperature image, and display the thermal image on the display unit 14 or an external display device. In other words, the information processing device 10 may realize only the function of generating and outputting a thermal image.

[0129] The functions of the information processing device 10 may be realized by being divided into two or more devices. That is, the information processing device 10 may be configured to include two or more devices. For example, the information processing device 10 may be configured to include a mobile terminal such as a smartphone and a server. In this case, the information processing device 10 may capture a temperature image or a visible image with the mobile terminal, generate a thermal image with the server, and display the thermal image on the mobile terminal.

[0130] <Other application examples of information processing system 1> As described above, the information processing system 1 of the present disclosure takes a building undergoing renovation work as a measurement target, and generates and displays a thermal image of at least a portion of the building before the renovation work is performed and a thermal image of at least a portion of the building after the renovation work is performed using a color table with a common temperature display range, thereby enabling a user to easily visually recognize the change in temperature before and after the renovation work is performed.

[0131] The information processing system 1 may be applied not only to the temperature of a building before and after renovation work is performed as a measurement target, but also to various other temperatures as a measurement target. For example, the information processing system 1 may be applied to the temperature of a construction site as a measurement target. The information processing system 1 may be applied to the temperature of equipment or devices used at a construction site as a measurement target. The information processing system 1 is not limited to these examples and may be applied to various other measurement targets.

[0132] Although the embodiments according to the present disclosure have been described based on the drawings and examples, it should be noted that a person skilled in the art can make various modifications or alterations based on the present disclosure. Therefore, it should be noted that these modifications or alterations are included in the scope of the present disclosure. For example, the functions included in each component or each step can be rearranged so as not to be logically inconsistent, and multiple components or steps can be combined into one or divided. Although the embodiments according to the present disclosure have been described mainly with respect to the device, the embodiments according to the present disclosure can also be realized as a method including steps executed by each component of the device. The embodiments according to the present disclosure can also be realized as a method, a program, or a storage medium on which a program is recorded, executed by a processor included in the device. It should be understood that these are also included in the scope of the present disclosure. [Explanation of symbols]

[0133] 1. Information Processing Systems 10 Information processing device (11: control unit, 12: storage unit, 13: communication unit, 14: display unit, 15: input unit, 16: imaging unit) 20 imaging device (21: infrared light imaging unit, 22: visible light imaging unit, 23: communication unit) 30 Databases 100 First thermal image (110: floor, 112: wall, 114: ceiling, 120: occupant, 122: heat source) 150 First visible image 200 Second thermal image (210: floor, 212: wall, 214: ceiling, 220: occupant, 222: heat source) 250 Second visible image

Claims

1. A display method executed by an information processing device, acquiring a temperature image having a plurality of pixels representing a temperature of a measurement object, the temperature image being acquired by photographing the measurement object; setting a temperature display range; generating a thermal image by assigning display colors corresponding to at least two temperature range sections included in the temperature display range to each pixel of the temperature image; displaying the thermal image; Including, The measurement target is at least a part of a building to be renovated, A display method, wherein the temperature display range is set as a range including the temperature of at least a part of the building before the renovation work is performed and the temperature of at least a part of the building after the renovation work is performed.

2. The display method according to claim 1 , wherein in the step of generating the thermal image, each section of the temperature range included in the temperature display range is linearly associated with a display color.

3. In the step of generating the thermal image, a pre-construction image is generated based on the temperature image acquired before the construction of the repair work, which is the thermal image before the construction of the repair work, and a post-construction image is generated based on the temperature image acquired after the construction of the repair work, which is the thermal image after the construction of the repair work, The display method according to claim 1 , wherein in the step of displaying the thermal images, the pre-construction image and the post-construction image are displayed in a comparative manner.

4. 2. The display method according to claim 1, wherein in the step of setting the temperature display range, the temperature display range is set to a different range in summer and in winter.

5. In the step of acquiring the temperature image, a visible image captured with visible light is further acquired; The display method according to claim 1 , wherein in the step of displaying the thermal image, the visible image is displayed alongside the thermal image.

6. The display method according to claim 1 , wherein, in the step of acquiring the temperature image, when the temperature image is acquired after the renovation work is performed, the shooting range when the temperature image was acquired before the renovation work is performed is displayed.

7. The display method according to claim 1 , wherein in the step of setting the temperature display range, the temperature display range is set before the renovation work is performed based on the temperature of the building before the renovation work is performed and the contents of the renovation work.

8. A display program that causes an information processing device to execute the display method according to any one of claims 1 to 7.

9. An information processing device that executes the display method according to any one of claims 1 to 7.

Images