Reinforcement Inspection Support Method

Abstract

This invention provides a method to support reinforcement inspections that can reduce the burden on engineers performing reinforcement inspections. [Solution] The reinforcement inspection support method comprises: a reinforcement imaging step in which a 360-degree camera capable of simultaneously capturing images in all directions while acquiring position information is moved at a construction site where reinforcement work has been carried out, and images of the reinforcement at the construction site are captured by the 360-degree camera; and an imaging trajectory creation step in which the image information of the reinforcement at the construction site captured by the 360-degree camera is associated with position information, and imaging trajectories are created that include corresponding image information for each position.

Description

Technical Field

[0001] The present disclosure relates to a reinforcement arrangement inspection support method.

Background Art

[0002] Conventionally, efforts have been made to reduce the burden of reinforcement arrangement inspection in building construction. For example, Patent Document 1 describes that on-site workers capture images of reinforcement arrangements section by section in accordance with work instructions automatically created based on reinforcement arrangement drawing data, and that inspection results and photographs input on site to a computer are transmitted to automatically create a report.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] At a construction site where reinforcement arrangement work has been performed, an engineer conducts a visual reinforcement arrangement inspection before concrete placing to confirm whether the reinforcement arrangement has been constructed as designed. For this reason, engineers are required to travel to the construction site, and the number of engineers is limited. Accordingly, it is required to reduce the burden on engineers in reinforcement arrangement inspection.

[0005] The present disclosure has been made in view of the above problems, and an object thereof is to provide a reinforcement arrangement inspection support method capable of reducing the burden of reinforcement arrangement inspection on engineers.

Means for Solving the Problems

[0006] To achieve the above objective, the reinforcement inspection support method relating to this disclosure comprises: a reinforcement imaging step in which a 360-degree camera capable of simultaneously capturing images in all directions while acquiring position information is moved at a construction site where reinforcement work has been carried out, and the 360-degree camera is used to capture images of the reinforcement at the construction site; and an imaging trajectory creation step in which the image information of the reinforcement at the construction site captured by the 360-degree camera is associated with the position information, and an imaging trajectory is created that includes the corresponding image information for each piece of position information. [Effects of the Invention]

[0007] The reinforcement inspection support method described herein can reduce the burden on engineers performing reinforcement inspections. [Brief explanation of the drawing]

[0008] [Figure 1] This figure schematically shows the configuration of a rebar inspection support system for implementing a rebar inspection support method according to one embodiment. [Figure 2] This is a flowchart of a reinforcement bar inspection support method according to one embodiment. [Figure 3] This is a perspective view showing an example of the reinforcement bar arrangement for columns at a construction site. [Figure 4] This diagram illustrates an example of an imaging route according to one embodiment. [Figure 5] This is a diagram illustrating an example of the inspection status of column reinforcement. [Figure 6] This is a diagram illustrating an imaging map according to one embodiment. [Modes for carrying out the invention]

[0009] The reinforcement inspection support method according to the embodiments of this disclosure will be described below with reference to the drawings. The embodiments described below represent one aspect of this disclosure and are not limiting, and can be modified at will within the scope of the technical idea of ​​this disclosure.

[0010] The reinforcement inspection support method described herein is a method for supporting reinforcement inspections by engineers during the construction of buildings. The engineers referred to here include, for example, the architect, the contractor, or an inspector belonging to a nationally designated inspection agency.

[0011] Figure 1 is a schematic diagram showing the configuration of a rebar inspection support system 1 for implementing a rebar inspection support method according to one embodiment. Figure 2 is a flowchart of the rebar inspection support method according to one embodiment.

[0012] As illustrated in Figure 1, the rebar inspection support system 1 includes a server 2. Server 2 is a computer, which may be a stationary terminal such as a desktop computer terminal, or a mobile terminal such as a smartphone or tablet terminal. Server 2 includes a processor such as a CPU or GPU (not shown), memory such as ROM or RAM, and an I / O interface. Server 2 realizes its various functional units by having the processor operate (calculate, etc.) according to the instructions of a program loaded into memory. In some embodiments, server 2 is a cloud server located in a cloud environment.

[0013] As illustrated in Figure 1, Server 2 is configured to connect to terminals such as a 360-degree camera 4 capable of simultaneously capturing images in all directions and a personal computer 6 with a monitor via the Internet 3, which is one of the communication networks. This allows Server 2 to acquire information from the 360-degree camera 4 (location information X of the 360-degree camera 4 and image information Y of the reinforcement bar arrangement at the construction site Q1) and supply the information (image trajectory Z) to the personal computer 6. The 360-degree camera 4 is transported to the construction site Q1 where the reinforcement bar installation is performed and used by a worker P1 at this site. The personal computer 6 is placed in or transported to any location and used by a technician P2. In one embodiment, the personal computer 6 is located at the technician P2's workplace Q2, which is a different location from the construction site Q1. Note that this disclosure does not limit the communication network to the Internet 3.

[0014] In one embodiment, the reinforcement of the construction site Q1 includes the reinforcement of columns, beams, and slabs. Figure 3 is a perspective view showing an example of the column reinforcement (hereinafter referred to as column reinforcement 10) at the construction site Q1. As illustrated in Figure 3, the column reinforcement 10 is composed of multiple reinforcing bars 8. The multiple reinforcing bars 8 include multiple main reinforcing bars 8A(8) extending along the longitudinal direction of the column, and stirrups 8B(8) arranged to surround the multiple main reinforcing bars 8A. The column reinforcement 10 includes an internal space 11 defined by the multiple main reinforcing bars 8A and the multiple stirrups 8B. Although not explained in detail, the beam reinforcement and slab reinforcement are also composed of multiple reinforcing bars 8 (beam reinforcement: main reinforcing bars + stirrups, slab reinforcement: main reinforcing bars + distribution bars), and include an internal space 11 defined by the multiple reinforcing bars 8. Furthermore, this disclosure is not limited to the reinforcement of construction site Q1 including the reinforcement of columns, beams, and slabs. In some embodiments, the reinforcement of construction site Q1 includes at least one of the reinforcement of columns, beams, and slabs. In some embodiments, it includes the reinforcement of structural elements of the building other than columns, beams, and slabs.

[0015] As shown in Figure 2, the reinforcement inspection support method includes a reinforcement imaging step S1, an imaging trajectory creation step S2, and an overlay step S3.

[0016] In the rebar imaging step S1, the 360-degree camera 4 is moved at the construction site Q1 while acquiring position information X, and the rebar at the construction site Q1 is imaged by this 360-degree camera 4. In one embodiment, the 360-degree camera 4 moves within the construction site Q1 as worker P1 moves while holding the 360-degree camera 4. Furthermore, worker P1 is equipped with a GPS sensor 12 (GPS: Global Positioning System) (see Figure 4). This GPS sensor 12 transmits the acquired position information of worker P1 while moving to the server 2 via the internet 3. In other words, the server 2 acquires the position information X of the 360-degree camera 4 when worker P1 is imaging the rebar at the construction site Q1. The position information X has the horizontal coordinates of the 360-degree camera 4 within the construction site Q1. In some embodiments, the position information X further has the vertical coordinates of the 360-degree camera 4 within the construction site Q1. In some embodiments, engineer P2 views the rebar arrangement at construction site Q1 being imaged by worker P1 in rebar arrangement imaging step S1 in real time via PC 6 from a location different from the construction site Q1. This disclosure is not limited to moving the 360-degree camera 4 in accordance with the movement of worker P1. In some embodiments, the 360-degree camera 4 is mounted on a self-propelled robot or drone, and the 360-degree camera 4 moves in accordance with the movement of the self-propelled robot or drone. Location information X may be acquired by methods other than the GPS sensor 12.

[0017] The 360-degree camera 4 supplies image information Y (hereinafter referred to as image information Y) of the rebar arrangement at the construction site Q1, which it has captured, to the server 2 via the internet 3. In other words, the server 2 acquires the image information Y. The image information Y is a video file that can be played back by a general video playback program. In one embodiment, the 360-degree camera 4 supplies the captured video of the rebar arrangement at the construction site Q1 to the server 2 in real time. In some embodiments, the image information Y includes still images. This disclosure is not limited to the real-time supply of video files to the server 2. For example, the video file may be supplied to the server 2 after the capture of the video of the rebar arrangement at the construction site Q1 is completed. The 360-degree camera 4 may also be configured to acquire distance information to the subject in addition to the normal visible light image. For example, the 360-degree camera 4 may be equipped with a LiDAR (Light Detection and Ranging) sensor, a ToF (Time of Flight) sensor, or a stereo camera, and may be configured to acquire 3D shape data of the construction site Q1 simultaneously with image capture.

[0018] In one embodiment, an imaging route R along which a worker P1 holds a 360-degree camera 4 and moves through a construction site Q1 is set in advance. The imaging route R is set such that each of the reinforcement arrangement of columns, the reinforcement arrangement of beams, and the reinforcement arrangement of slabs can be imaged by the 360-degree camera 4. Figure 4 is a diagram for explaining an example of the imaging route R according to one embodiment. In Figure 4, the region where the reinforcement arrangement construction for columns is performed is defined as a column region A1, the region where the reinforcement arrangement construction for beams is performed is defined as a beam region A2, and the region where the reinforcement arrangement construction for slabs is performed is defined as a slab region A3. As illustrated in Figure 4, the imaging route R is set to pass near all of the column regions A1. The imaging route R is set to extend near the beam region A2 along the beam region A2. The imaging route R is set to pass through at least a part of the slab region A3. Therefore, as the worker P1 moves from the start point B1 to the end point B2 of the imaging route R, all of the reinforcement arrangement of columns, the reinforcement arrangement of beams, and the reinforcement arrangement of slabs are imaged. The start point B1 of the imaging route R is the point where imaging by the 360-degree camera 4 starts, and the end point B2 of the imaging route R is the point where imaging by the 360-degree camera 4 ends.

[0019] In one embodiment, as illustrated in Figure 4, the imaging route R includes a preset set point C. The set point C includes a column set point C1(C) set near the column region A1, and a beam set point C2(C) set near the beam region A2. In the reinforcement arrangement imaging step S1, when the worker P1 reaches the column set point C1, the 360-degree camera 4 is placed in the internal space 11 of the column reinforcement arrangement 10 before imaging is performed. Similarly, in the reinforcement arrangement imaging step S1, when the worker P1 reaches the beam set point C2, the 360-degree camera 4 is placed in the internal space 11 of the beam reinforcement arrangement before imaging is performed. In one embodiment, a plurality of beam set points C2 are set for the reinforcement arrangement in one beam that connects one column and another column. In some embodiments, the set point C includes a slab set point set within the slab region A3. In this case, in the reinforcement arrangement imaging step S1, when the worker P1 reaches the slab set point, the 360-degree camera 4 is placed in the internal space 11 of the slab reinforcement arrangement before imaging is performed.

[0020] In one embodiment, as illustrated in Figure 4, the imaging route R includes a preset second set point D. The second set point D is set in the vicinity of the column region A1. In the reinforcement imaging step S1, when the worker P1 reaches the second set point D, the column reinforcement 10 is inspected by the inspection jig 14, and the inspection state of this column reinforcement 10 is imaged. Note that the second set point D may be set at the same position as the set point C.

[0021] Figure 5 is a diagram for explaining an example (360-degree still image IM) of the inspection state of the column reinforcement 10. As illustrated in Figure 5, the worker P1 brings the inspection jig 14 into contact with the main reinforcement 8A to measure the diameter of the main reinforcement 8A. Such an inspection jig 14 is a gauge. Then, the worker P1 uses the 360-degree camera 4 to capture an image of the state where the gauge is in contact with the main reinforcement 8A. In some embodiments, the worker P1 uses the 360-degree camera 4 to capture an image of the standard information (for example, the material and strength class of the reinforcing bar 8) displayed on the surface of the reinforcing bar 8.

[0022] Note that, in the embodiment illustrated in Figure 5, the case where the worker P1 captures an image of the state of inspecting the reinforcing bar diameter of the column reinforcement 10 has been described as an example, but the present disclosure is not limited to this embodiment. The worker P1 may capture an image of a state in which an item other than the reinforcing bar diameter is inspected by the inspection jig 14. For example, the worker P1 uses the 360-degree camera 4 to capture images of a state where the cover thickness is secured by a spacer and a state where the cover thickness is measured by a cover thickness gauge.

[0023] In some embodiments, the second set point D is set in the vicinity of the beam region A2. In some embodiments, the second set point D is set within the slab region A3. Then, in the reinforcement imaging step S1, the worker P1 captures an image of a state in which the beam reinforcement and the slab reinforcement are inspected by the inspection jig 14.

[0024] By the way, there are no particular limitations on how worker P1 can confirm the imaging route R. Worker P1 can confirm the imaging route R by referring to the imaging route R electronically displayed on a mobile device such as a tablet, or by referring to the imaging route R printed on paper.

[0025] In the imaging trajectory creation step S2, image information Y and position information X are associated, and an imaging trajectory Z is created that includes the corresponding image information Y for each position information X. In one embodiment, for each position information X, the server 2 creates a 360-degree still image IM that is synchronized with the position information X based on a video file captured by the 360-degree camera 4, and creates an imaging trajectory Z by sequentially combining these position information Xs. The 360-degree still image IM is displayed as a virtual viewpoint image that allows viewing of the surroundings in all directions from the position determined by the position information X. The 360-degree still image IM is rotatable and zoomable, and a rotation tool 16 and a zoom tool 18 are displayed (see Figure 5). When an arbitrary first point 30 and second point 32 are specified, the 360-degree still image IM calculates and displays the distance 34 between the specified first point 30 and second point 32.

[0026] Here, we will explain an example of a method for calculating distance. Based on the acquired image information Y (video file), Server 2 uses image analysis techniques such as SfM (Structure from Motion) and Multi-View Stereo (MVS) to reconstruct a 3D model of the construction site Q1 (for example, 3D point cloud data). Server 2 then saves the reconstructed 3D model in association with the 360-degree still image IM. As a result, when engineer P2 specifies any two points (first point 30 and second point 32) on the 360-degree still image IM, Server 2 can derive the distance 34 (dimension) between the two points in real space by calculating the Euclidean distance between the coordinates on the 3D model corresponding to these two points.

[0027] In the superposition step S3, the imaging trajectory Z is superimposed onto a map of the construction site Q1. In one embodiment, the server 2 has pre-stored a plan view of the construction site Q1 that shows the arrangement ranges A11 of columns, A12 of beams, and A13 of slabs that constitute the structural members of the building. By superimposing the imaging trajectory Z onto this plan view of the construction site Q1, an imaging map M is created. The imaging map M is stored in the server 2.

[0028] The imaging map M will now be described. Figure 6 is a diagram illustrating the imaging map M according to one embodiment. As illustrated in Figure 6, the imaging map M shows the column placement area A11, the beam placement area A12, and the slab placement area A13 as a plan view of the construction site Q1. The imaging map M also shows the imaging trajectory Z superimposed on the plan view of the construction site Q1.

[0029] The imaging trajectory Z is configured to provide a 360-degree still image IM that can be viewed from any selected position on the imaging trajectory Z once an arbitrary position is selected. Specifically, technician P2 operates the PC 6 to retrieve the imaging map M stored on the server 2 and displays this imaging map M on the monitor of the PC 6. Then, when technician P2 clicks on the inspection position E on the imaging trajectory Z using the mouse on the PC 6, a 360-degree still image IM synchronized with the inspection position E is displayed on the monitor of the PC 6.

[0030] In one embodiment, when any position other than the imaging trajectory Z is selected, the imaging map M is configured to provide a 360-degree still image IM that can be viewed from the position of the imaging trajectory Z closest to the selected position other than the imaging trajectory Z. Specifically, when engineer P2 clicks on a confirmation position F1 other than the imaging trajectory Z on the imaging map M using the mouse of the personal computer 6, a 360-degree still image IM synchronized with the position of the imaging trajectory Z closest to confirmation position F1 (referred to as the nearest confirmation position F2) is displayed on the monitor of the personal computer 6.

[0031] (Effects / Actions) The operation and effects of a rebar inspection support method according to one embodiment will be described. When the rebar inspection support method according to one embodiment is performed, the server 2 creates an imaging map M representing the imaging trajectory Z and saves this imaging map M. Therefore, a technician P2 located at the workplace Q2 can acquire the imaging map M using a personal computer 6 and, by checking a 360-degree camera still image IM synchronized to any position on the imaging trajectory Z via the monitor of the personal computer 6, can perform a rebar inspection as if they were physically present at the construction site Q1. This reduces the burden on the technician P2 to perform the rebar inspection.

[0032] According to one embodiment, an image map M is automatically created simply by worker P1 moving around the construction site Q1 while holding a 360-degree camera. Then, engineer P2 can view a 360-degree camera still image IM synchronized to any position on the image trajectory Z of the automatically created image map M. In other words, engineer P2 does not need to go to the site and perform a visual inspection of the rebar. This makes the rebar inspection by engineer P2 more efficient and reduces the number of people required. Furthermore, the 360-degree camera 4 also captures video of areas other than those subject to the rebar inspection. Therefore, even if it becomes necessary to check areas other than those subject to the rebar inspection at a later date, these areas can be checked without going to the construction site Q1.

[0033] According to one embodiment, an imaging map M is created by superimposing the imaging trajectory Z onto the plan view of the construction site Q1, so that the engineer P2 viewing the imaging map M can easily select the object to be inspected for reinforcement work.

[0034] According to one embodiment, since the imaging route R that worker P1 moves along is predetermined, even if worker P1 does not possess specialized know-how regarding reinforcement inspection, worker P1 can image the reinforcement at the construction site Q1 to a degree that allows for reinforcement inspection by engineer P2. Furthermore, it is possible to suppress instances where worker P1 forgets to take pictures or overlooks something.

[0035] According to one embodiment, in the rebar imaging step S1, worker P1 moves from the starting point B1 to the ending point B2 of the imaging route R, thereby imaging all of the rebar for columns, beams, and slabs. As a result, engineer P2 located at workplace Q2 can perform rebar inspections for each of the column, beam, and slab rebars as if they were present at the construction site Q1. Furthermore, even after concrete pouring, the construction status of each of the column, beam, and slab rebars can be accurately confirmed.

[0036] According to one embodiment, in the rebar imaging step S1, when worker P1 reaches the column setting point C1, a 360-degree camera 4 is placed in the internal space 11 of the column rebar 10 before imaging. Therefore, an engineer P2 located at the workplace Q2 can view the internal space 11 of the column rebar 10 without having to be physically present at the construction site Q1.

[0037] According to one embodiment, in the rebar imaging step S1, when worker P1 reaches the second designated point D, he inspects the column rebar 10 with an inspection jig 14 and images the inspection state of the column rebar 10. Therefore, engineer P2 located at the workplace Q2 can view the column rebar 10 being inspected by the inspection jig 14 without having to be present at the construction site Q1.

[0038] The contents described in each of the above embodiments can be understood, for example, as follows:

[0039] [1] The reinforcement inspection support method relating to this disclosure is In a construction site (Q1) where rebar work has been carried out, a 360-degree camera (4) capable of simultaneously capturing images in all directions while acquiring positional information (X) is moved, and the rebar imaging step (S1) is performed in which the 360-degree camera is used to image the rebar at the construction site. The system includes an imaging trajectory creation step (S2) which associates image information (Y) of the reinforcement bar arrangement at the construction site captured by the 360-degree camera with the position information, and creates an imaging trajectory (Z) that includes the corresponding image information for each position.

[0040] According to the method described in [1] above, an engineer located in a different location from the construction site can access the imaging trajectory and, by reviewing the image information of the reinforcement at the construction site captured by the 360-degree camera from the accessed imaging trajectory, can perform a reinforcement inspection as if they were present at the construction site. Furthermore, since the imaging trajectory contains image information corresponding to each location information of the construction site, the engineer can perform a reinforcement inspection at any location on the construction site. This reduces the burden on engineers performing reinforcement inspections.

[0041] [2] In some embodiments, the method described in [1] above, The system further includes an overlay step (S3) for superimposing the aforementioned imaging trajectory onto a map of the construction site.

[0042] According to the method described in [2] above, engineers can easily select the objects to be inspected for reinforcement.

[0043] [3] In some embodiments, in the method described in [1] or [2] above, In the reinforcement imaging step, the 360-degree camera is moved along a predetermined imaging route (R).

[0044] According to the method described in [3] above, since the imaging route is set in advance, the rebar at the construction site can be properly imaged even if the imager or the imaging object does not have specialized know-how regarding rebar inspection.

[0045] [4] In some embodiments, the method described in [3] above, The reinforcement arrangement at the aforementioned construction site includes the reinforcement of columns, beams, and slabs. The imaging route is set up so that the reinforcement of the columns, the reinforcement of the beams, and the reinforcement of the slabs can each be imaged by the 360-degree camera.

[0046] According to the method described in [4] above, engineers can perform reinforcement inspections of columns, beams, and slabs as if they were present at the construction site.

[0047] [5] In some embodiments, the method described in [3] or [4] above, In the reinforcement imaging step, the 360-degree camera is positioned at a predetermined point on the imaging route within the internal space (11) defined by the multiple reinforcing bars (8) that constitute the reinforcement of the construction site, and then imaging is performed.

[0048] According to the method described in [5] above, engineers can view the internal space of the reinforcement at a construction site without having to be physically present at the construction site.

[0049] [6] In some embodiments, the method described in any one of [3] to [5] above, In the reinforcement imaging step, images are taken at a predetermined point along the imaging route, showing the reinforcement at the construction site being inspected by an inspection jig (14).

[0050] According to the method described in [6] above, engineers can view the reinforcement at a construction site as it is being inspected using an inspection jig, without having to be physically present at the construction site.

[0051] [7] In some embodiments, the method described in any one of [1] to [6] above, In the imaging trajectory creation step, for each position information, a 360-degree still image (IM) synchronized with the position information is created based on the image information captured by the 360-degree camera. When an arbitrary first point (30) and second point (32) are specified on the 360-degree still image, the distance (34) between the specified first point and second point is calculated and displayed.

[0052] According to the method described in [7] above, an engineer can quantitatively determine the distance between two points by specifying any first and second points in a 360-degree still image, without having to be physically present at the construction site. [Explanation of symbols]

[0053] 1. Rebar Inspection Support System 2 servers 3. Internet 6. Personal computer 8 Reinforcement bars 8A Main reinforcement 8B Muscles of the tibia 10 Column reinforcement 11 Interior space 12 GPS sensors 14. Inspection fixtures 30 1st point 32 Second point 34 distance A1 pillar area A2 beam area A3 Slab area A11 Pillar placement range A12 Beam placement range A13 Slab placement range B1 Starting point B2 End Point C Setting point C1 Pillar setting point C2 beam setting point D Second setting point E. Inspection location F1 Confirmation position F2 Nearest confirmation location IM 360 degree still image M Image Map P1 worker P2 Engineer Q1 Construction site Q2 Workplace R imaging route S1 Reinforcement Imaging Step S2 Imaging trajectory creation step S3 Overlapping Steps X Location information Y Image Information Z imaging trajectory

Claims

1. In a construction site where rebar work has been carried out, a 360-degree camera capable of simultaneously capturing images in all directions is moved while acquiring the position information of the 360-degree camera, and the rebar is captured by the 360-degree camera in a rebar imaging step, A step to create an imaging trajectory, which involves associating image information of the reinforcement bar arrangement at the construction site captured by the 360-degree camera with the position information, and creating an imaging trajectory that includes the corresponding image information for each position information, wherein for each position information, an imaging trajectory creation step is made to create a 360-degree still image that is synchronized with the position information based on the image information captured by the 360-degree camera, A superposition step involves superimposing the aforementioned imaging trajectory onto a map of the construction site to create an imaging map in which the imaging trajectory is represented. The system includes a display step that enables the display of the 360-degree still image corresponding to any position selected in the imaging trajectory of the imaging map. Reinforcement bar placement inspection support method.

2. In the reinforcement imaging step, the 360-degree camera is moved along a predetermined imaging route. The reinforcement bar inspection support method according to claim 1.

3. The reinforcement arrangement at the aforementioned construction site includes the reinforcement of columns, beams, and slabs. The imaging route is set up so that the reinforcement of the columns, the reinforcement of the beams, and the reinforcement of the slabs can each be imaged by the 360-degree camera. The reinforcement bar inspection support method according to claim 2.

4. In the reinforcement imaging step, the 360-degree camera is positioned at a predetermined point on the imaging route within the internal space defined by multiple reinforcing bars constituting the reinforcement of the construction site, and then imaging is performed. The reinforcement bar inspection support method according to claim 2.

5. In the reinforcement imaging step, images are taken at a predetermined point along the imaging route, showing the state in which the reinforcement at the construction site is being inspected using an inspection jig. The reinforcement bar inspection support method according to claim 2.

6. When an arbitrary first point and second point are specified on the 360-degree still image, the distance between the specified first point and second point is calculated and displayed. A method for supporting reinforcement inspection according to any one of claims 1 to 5.

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