JP2019169078A - House change reading support system, house change reading support method and house change reading program - Google Patents

Abstract

To provide a house transfer interpretation support device capable of improving the efficiency of interpretation work. A house change interpretation support device (server 5) for assisting in interpreting a house change between different periods, the first and second figures showing the shape of a house from above in both periods. (2) a determination image generation unit that generates a determination target image as determination target data; a mesh setting unit that sets a predetermined mesh in the determination regions of the generated first and second determination target images; A first extraction unit that extracts, as a first candidate region, a mesh in which house change has been detected between the two periods, out of the predetermined meshes set by the setting unit, and a mesh setting unit that is set by a second worker. A second extraction unit that extracts, as a second candidate area, a mesh in which a house change between the two periods is detected, among the extracted predetermined meshes, and a mesh that is extracted as the first and second candidate areas. Based on Interview comprises a combining unit that displays the composite synthetic judgment object data. [Selection] Figure 2

Description

  The present disclosure relates to a house change interpretation support system, and relates to a house shape change interpretation support.

  The fixed asset change interpretation survey refers to comparing color aerial photographs taken in the previous year with color aerial photographs taken in the current year and interpreting changes in fixed assets based on the difference. Here, the transfer interpretation of fixed assets refers to land use such as expansion and renovation of houses, new construction of houses in lands (new construction of lands), destruction of houses, construction of new houses after the destruction of houses (destruction and construction). A change in the situation.

  In this regard, various devices for automating the interpretation of house changes using these methods have been proposed (Patent Documents 1 to 3).

However, improvement of the accuracy is a problem.
Therefore, when accuracy is required as in the case of grasping fixed assets, an operation for confirming the detection result of the changed part by these devices by visual interpretation is performed.

JP-A-9-61164 Japanese Patent Laid-Open No. 2007-3244 JP 2006-99316 A

However, the efficiency of work is a problem in human visual interpretation.
In this regard, aerial photographs taken at different times basically have different shooting conditions, which results in differences in image color, contrast, shadow position / size, and vegetation according to the season. .

  Interpretation is generally conducted during a three-month period from January to March immediately after the color aerial photographs are taken, and image changes caused by these factors are limited during that limited period. From the inside, it is necessary to discriminate changes in the image due to house changes. Therefore, it is important to improve the efficiency of interpretation work.

  The present disclosure has been made to solve the above-described problems, and an object thereof is to provide a house change interpretation support system, a house change interpretation support method, and a house change interpretation support program capable of improving the efficiency of interpretation work. And

  According to one embodiment, the house change interpretation support system that supports the work of reading the house change between the two periods based on the determination target data indicating the shape of the house in the target area in the first and second periods. Is provided. The apparatus includes a determination image generation unit that generates, as determination target data, first and second determination target images in which a shape of a house from above in a target region is shown based on spatial information measurement data in both periods. Among the predetermined mesh set by the mesh setting unit in the first work process, a mesh setting unit that sets a predetermined mesh in the determination region of the first and second determination target images generated by the determination image generation unit The first extraction unit that extracts the mesh in which the house change between the two periods is detected as the first candidate region, and both of the predetermined meshes set by the mesh setting unit in the second work process Based on a second extraction unit that extracts a mesh in which a house change between periods is detected as a second candidate region, and a mesh extracted as the first and second candidate regions And a combining unit for outputting the synthesized composite determination target data.

  Preferably, the synthesis unit displays the first color for the meshes extracted as the first and second candidate regions among the predetermined meshes of the first and second determination target images as the combination determination target data. And output so that the second color is displayed on the meshes other than the first and second candidate regions among the predetermined meshes of the first and second determination target images.

  Preferably, the synthesizing unit performs the first operation on the meshes included in both of the meshes extracted as the first and second candidate regions among the predetermined meshes of the first and second determination target images as the synthesis determination target data. Output to display one color, and the second of the meshes included in only one of the meshes extracted as the first and second candidate regions among the predetermined meshes of the first and second determination target images. Is output so that the third color is displayed for the meshes other than the first and second candidate regions among the predetermined meshes of the first and second determination target images.

  According to another embodiment, the house change interpretation support that supports the work of interpreting the house change between the two periods based on the determination target data indicating the shape of the house in the target area in the first and second periods. A method is provided. The method includes generating a first and a second determination target image showing a shape of a house from above in the target region as determination target data based on the spatial information measurement data in both periods, and A step of setting a predetermined mesh in the determination region of the first and second determination target images; and a house between the two periods based on the determination target data of the predetermined mesh set in the first work process In the step of detecting the change, in the second work process, in the step of detecting the house change between the two periods based on the determination target data among the set predetermined mesh, and in the first work process, the change is A step of extracting the detected mesh as the first candidate region, and a step of extracting the mesh from which the change is detected as the second candidate region in the second work process. Comprising a flop, based on the mesh is extracted as the first and second candidate areas, and outputting the synthesized composite determination target data.

  According to another embodiment, the computer supports the work for reading the house change between the two periods based on the determination target data indicating the shape of the house in the target area in the first and second periods. A program for functioning as a transfer interpretation support device is provided. This program generates a determination image for generating, as determination target data, a first determination target image and a second determination target image showing the shape of a house from above in the target region based on spatial information measurement data at both times A mesh setting unit that sets a predetermined mesh in the determination region of the first and second determination target images generated by the determination image generation unit, and a predetermined set by the mesh setting unit in the first work process Among the meshes, the first extraction unit that extracts the mesh in which the house change between the two periods is detected as the first candidate region, and the predetermined mesh set by the mesh setting unit in the second work process A second extraction unit that extracts a mesh in which a house change between the two periods is detected as a second candidate area; and a mesh extracted as the first and second candidate areas Based on Mesh, as a synthetic unit for displaying the synthesized synthetic judgment object data, to function.

  The house change interpretation support apparatus, the house change interpretation support method, and the house change interpretation support program of the present disclosure can improve the efficiency of the interpretation work.

It is a conceptual diagram of the house change interpretation support system 1 according to the first embodiment. It is a figure explaining the structure of the server 5 according to Embodiment 1. FIG. It is a figure explaining the structure of the terminal 10 according to Embodiment 1. FIG. It is a figure explaining the screen 100 displayed on the display part 44 of the terminal 10A of the worker A based on Embodiment 1. FIG. It is a figure explaining the determination object data from which the house change was detected by the worker A based on Embodiment 1. FIG. It is a figure explaining the determination object data from which house change is not detected by the worker A based on Embodiment 1. FIG. It is a figure explaining the screen displayed on the display part 44 of the terminal 10B of the worker B based on Embodiment 1. FIG. It is a figure explaining the determination object data from which the house transfer was detected by the worker B based on Embodiment 1. FIG. It is a figure explaining the determination object data by which the mesh selected by the worker B based on Embodiment 1 and the other mesh were displayed. It is a figure explaining the synthetic | combination determination object data displayed and output on the display part 44 of terminal 10D based on Embodiment 1. FIG. It is a flowchart explaining the process of the server 5 based on Embodiment 1. FIG. It is a flowchart explaining the production | generation of the synthesis | combination determination object data in the server 5 based on Embodiment 1. It is a figure explaining the synthetic | combination determination object data displayed and output on the display part 44 of terminal 10D based on the modification 1 of Embodiment 1. FIG. It is a figure explaining the synthetic | combination determination object data displayed and output on the display part 44 of terminal 10D based on the modification 2 of Embodiment 1. FIG. It is a figure explaining the structure of the server 5A according to Embodiment 2. FIG. It is a figure explaining the determination object data from which house change was detected by CPU based on Embodiment 2. FIG.

  Embodiments will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and description thereof will not be repeated.

(Embodiment 1)
(Entire system configuration)
FIG. 1 is a conceptual diagram of a house change interpretation support system 1 according to the first embodiment.

  With reference to FIG. 1, the house change interpretation support system 1 includes a plurality of terminals 10 </ b> A to 10 </ b> D, a network 2, and a server 5.

  Terminals 10 </ b> A to 10 </ b> D (also collectively referred to as terminals 10) are provided so as to be accessible to the server 5 via the network 2. The network 2 includes at least one of a wired network and a wireless network.

  Terminals 10A to 10D are arranged in different places. The terminals 10A to 10D may be fixed terminals or mobile terminals.

  As an example, workers are associated with the terminals 10A to 10C, respectively. The terminal 10D is associated with an administrator.

  As an example, the workers A to C operate the terminals 10A to 10C, respectively. The administrator operates the terminal 10D.

(Configuration of server 5)
FIG. 2 is a diagram illustrating the configuration of the server 5 according to the first embodiment.

  Referring to FIG. 2, server 5 includes a CPU (Central Processing Unit) 20, a memory 16, and a communication unit 18.

The CPU 20 controls the entire server 5.
The CPU 20 implements various functional blocks by executing a program stored in the memory 16. Specifically, the CPU 20 includes a determination image generation unit 22, a mesh setting unit 24, a determination work processing unit 25, a first extraction unit 26, a second extraction unit 28, and a synthesis unit 30.

  The memory 16 is a storage device such as a ROM (Read Only Memory), a RAM (Random Access Memory), or a hard disk built in the computer. The memory 16 stores various programs and various data including processing programs of the determination image generation unit 22, the mesh setting unit 24, the determination work processing unit 25, the first extraction unit 26, the second extraction unit 28, and the synthesis unit 30. The CPU 20 inputs and outputs these pieces of information.

  The communication unit 18 is connected to the network 2 and communicates with other devices (terminals 10A to 10D) connected to the network 2.

(Configuration of terminal 10)
FIG. 3 is a diagram illustrating the configuration of terminal 10 according to the first embodiment.

  Referring to FIG. 3, terminal 10 includes a CPU (Central Processing Unit) 40, an operation unit 42, a display unit 44, a memory 46, and a communication unit 48.

The CPU 40 controls the entire terminal 10.
The CPU 40 implements various functions by executing programs stored in the memory 46.

  The memory 46 is a storage device such as a ROM (Read Only Memory), a RAM (Random Access Memory), or a hard disk built in the computer. The memory 46 stores various programs and various data, and inputs / outputs such information to / from the CPU 40.

The display unit 44 is an image display device such as a liquid crystal monitor.
The operation unit 42 includes a keyboard, a mouse, and the like.

  The communication unit 48 is connected to the network 2 and communicates with other devices (server 5 and terminal 10) connected to the network 2.

  The house change interpretation support system 1 is a system that supports the work of reading house changes at two periods via the terminal 10.

Data for interpreting the house change is stored in the memory 16 of the server 5.
Specifically, the memory 16 of the server 5 stores ground information images taken from an aircraft, an artificial satellite, or the like at two periods, and spatial information measurement data such as these images or DSM data acquired by aviation laser measurement. Stored.

  The server 5 generates the determination target images for the two periods based on the spatial information measurement data.

  The worker performs an operation of reading a house change between both periods using the two determination target images generated by the server 5 via the terminal 10 as determination target data.

  Here, the previous period of the two periods is represented as “previous year”, and the later period is represented as “new year”. As the ground image used for the change detection, an ortho image obtained by correcting (ortho correction) distortion generated in the original aerial photograph or satellite image due to the topography is used. Topographic data is required for ortho correction.

  Even if ground images based on aeronautical measurements or DSM (Digital Surface Model) data can be obtained only for one period of the "previous year" and "new year" (generally the new year), the other period If the house shape data in the determination target area already exists in the memory 16 of the server 5, it is possible to detect a house change by comparing the data of these two periods.

  In this example, the house change interpretation support system 1 executes a work (a plurality of work steps) for reading a house change during two periods for the same determination target data a plurality of times.

  As an example, as a plurality of work steps, a work of reading a house change between two periods for the same determination target data by a plurality of workers is executed.

  The house change interpretation support system 1 according to the first embodiment outputs combined determination target data obtained by combining determination results of interpretation work (a plurality of work processes) on the same determination target data by a plurality of workers.

  By outputting the combination determination target data, it is possible to improve the accuracy of the work of reading the house change.

  For example, when an administrator interprets a house change, it is possible to improve the work efficiency of the house change interpretation by using the composition determination target data.

  Further, the house transfer interpretation support system 1 is provided with a plurality of terminals 10 accessible to the server 5 via the network 2, so that the efficiency of the interpretation work on the determination target data generated by the server 5 can be improved. Is possible.

Hereinafter, the process of the server 5 will be described.
The determination image generation unit 22 includes two determination target images in which the shape of the house from above in the target region is indicated based on the numerical surface layer model data (DSM data) or the spatial information measurement data including the aerial captured image in both periods. Is generated as determination target data.

  As an example, a determination target image of “previous year” is a first determination target image, and a determination target image of “new year” is a second determination target image.

  Specifically, the determination image generation unit 22 generates an ortho image as a planar view image from an image such as an aerial photograph of the target region, orientation elements such as the shooting position / direction thereof, and DSM data.

  The mesh setting unit 24 sets a predetermined mesh in the determination area. As an example, the size of the mesh is set in a range of 5 m × 5 m with respect to the measurement data.

  The determination work processing unit 25 receives the worker's determination work for the determination target data and executes various processes.

  The 1st extraction part 26 makes the 1st candidate the mesh by which the house change between the said two periods was detected among the predetermined | prescribed mesh set by the mesh setting part 24 by the 1st worker as a 1st work process. Extract as a region.

  The second extraction unit 28 selects, as a second candidate, a mesh in which a house change is detected between the two periods among the predetermined meshes set by the mesh setting unit 24 by the second worker as the second work step. Extract as a region.

  The synthesizing unit 30 generates and outputs synthesized synthesis determination target data based on the mesh extracted as the first and second candidate regions.

  FIG. 4 is a diagram illustrating the screen 100 displayed on the display unit 44 of the terminal 10A of the worker A based on the first embodiment.

  A screen 100 shown in FIG. 4 is a two-view screen example having two image display areas 102 and 104 having the same shape and size side by side on the left and right.

  The determination target data is generated by the determination image generation unit 22 of the server 5. The determination work processing unit 25 of the server 5 transmits the determination target data generated by the determination image generation unit 22 to the communication unit 48 of the terminal 10 via the communication unit 18. The communication unit 48 of the terminal 10 receives the determination target data transmitted from the determination work processing unit 25 of the server 5 via the communication unit 18. The CPU 40 of the terminal 10 displays the screen on the display unit 44 based on the received determination target data.

  Here, the left image display area 102 is set as the display area for the previous year image, and the right image display area 104 is set as the display area for the new year image.

  In the image display areas 102 and 104, ortho images corresponding to the target areas can be displayed.

  In the image display areas 102 and 104, mesh areas 106 and 108 to be superimposed on the ortho image are set as determination areas.

  The mesh areas 106 and 108 are set by the mesh setting unit 24. The determination work processing unit 25 of the server 5 transmits data regarding the mesh regions 106 and 108 to the communication unit 48 of the terminal 10 via the communication unit 18. The communication unit 48 of the terminal 10 receives data relating to the mesh regions 106 and 108 transmitted from the determination work processing unit 25 of the server 5 via the communication unit 18. The CPU 40 of the terminal 10 displays the mesh area on the display unit 44 based on the received data regarding the mesh areas 106 and 108.

  The position coordinates of the image display areas 102 and 104 are the same position coordinates on the left and right. Further, the mesh areas 106 and 108 have the same position coordinates on the left and right.

  In this example, the mesh areas 106 and 108 set as determination areas are provided so as to be selectable by the operation unit 42. As an example, when the operation area 42 is selected for the mesh areas 106 and 108, the corresponding mesh is selected and displayed.

Operation information is shown above the image display areas 102 and 104.
As operation information, determination target data for the worker A is shown as information on the worker. In addition, the message regarding the operation content is “Select the mesh displayed on the map. The mesh state will be switched.”

In addition, a “with change” button BT1 and a “no change” button BT2 are provided.
When the worker A operates the operation unit 42 of the terminal 10A and selects the “changed” button BT1, the worker A can perform the determination on the determination target data indicating the shape of the house in the target area. It is possible to select a mesh in which a change is detected. For example, the operator A compares the previous year and new year images displayed in the image display areas 102 and 104, respectively, and selects a mesh from which a house change is detected by the operation unit 42.

  When the worker A operates the operation unit 42 of the terminal 10A and selects the “no change” button BT2, the worker A can make a decision on the determination target data indicating the shape of the house in the target area. It is possible to select a mesh in which no change is detected. For example, the operator A compares the previous year and new year images displayed in the image display areas 102 and 104, respectively, and selects a mesh in which no house change is detected by the operation unit 42.

  An operation instruction from the operation unit 42 of the worker A is transmitted to the communication unit 18 of the server 5 via the communication unit 48. The determination work processing unit 25 receives an operation instruction from the operation unit 42 of the worker A via the communication unit 48 and executes various processes of the determination work. Specifically, the determination work processing unit 25 executes processing for enabling a first hatched area and a second hatched area, which will be described later.

  FIG. 5 is a diagram illustrating determination target data in which a house change is detected by the worker A based on the first embodiment.

  The screen 110 shown in FIG. 5 is an example of a two-view screen having two image display areas 102 and 104 having the same shape and size side by side on the left and right.

A case where the “changed” button BT1 is selected by the operation unit 42 is shown.
And in this example, the case where the mesh from which the house change was detected by the operation part 42 is selected as a 1st hatching area | region is shown.

  In addition, since the meshes of the previous year and the new year have a correspondence relationship, the mesh hatching area designated for one of the meshes by the operation unit 42 is effective for the other mesh.

As a result, it is possible to select a place where there is a possibility of a house change by a simple method.
FIG. 6 is a diagram for explaining determination target data in which a house change is not detected by the worker A based on the first embodiment.

  A screen 120 shown in FIG. 6 is a two-view screen example having two image display areas 102 and 104 having the same shape and size side by side on the left and right.

A case where the “no change” button BT2 is selected by the operation unit 42 is shown.
And in this example, the case where the mesh from which a house change is not detected by the operation part 42 is selected as a 2nd hatching area | region is shown.

  In addition, since the meshes of the previous year and the new year are in a correspondence relationship, the mesh hatching area designated by the operation unit 42 for one is effective for the other mesh.

  The meshes with the possibility of house change selected from the determination areas of the previous year and the new year and the meshes with a low possibility of house change are displayed as different first and second hatching areas, respectively.

As a result, it is possible to determine whether there is a possibility of a house change by a simple method.
In addition, it is possible to easily indicate to the worker A which area has been read by displaying the second hatched area as a mesh with a low possibility of house change. Thereby, it is possible to improve the work efficiency of reading.

  In this example, a description will be given of a method of selecting a mesh in which a house change is detected and a mesh in which a house change is not detected by selecting and operating the “with change” button BT1 and the “no change” button BT2, but this method is an example. It is. Any method may be adopted as long as it is possible to select a mesh in which a house change is detected and a mesh that is not detected by a predetermined operation. The same applies to the following.

  In addition, in this example, although the case where it displays as a hatching area | region has been demonstrated, it is not restricted to this in particular, You may make it distinguish by changing a color (blue, yellow, etc.), and other systems You may make it highlight based on. For example, a colored area may be blinked.

  In this example, after selecting the “changed” button BT1 and selecting the mesh in which the house change was detected, selecting the “no change” button BT2 and selecting the mesh in which the house change was not detected. As described above, the order is not particularly limited. After selecting the “no change” button BT2 and selecting a mesh in which house change is not detected, the mesh in which the house change is detected by selecting the “with change” button BT1. May be selected.

  FIG. 7 is a diagram illustrating a screen displayed on the display unit 44 of the terminal 10B of the worker B based on the first embodiment.

  Since screen 130 shown in FIG. 7 is basically the same as that described in FIG. 2, detailed description thereof will not be repeated.

  In this example, in order to require accuracy like grasping of fixed assets, a house change between two periods is detected by a plurality of workers. A determination area similar to that of the worker A is also displayed for the worker B.

The process in the server 5 executes the same process as described with reference to FIGS.
FIG. 8 is a diagram illustrating determination target data in which a house change is detected by the worker B based on the first embodiment.

  The screen 140 shown in FIG. 8 shows a two-view screen example having two image display areas 102 and 104 having the same shape and size side by side on the left and right.

  The case where the operator B selects the “changed” button BT1 by operating the operation unit 42 of the terminal 10B is shown.

  And in this example, the case where the mesh from which the house change was detected by the operation part 42 is selected as a 1st hatching area | region is shown.

  In this example, the case where the mesh selected by the worker A is different from the mesh selected by the worker B is shown.

  FIG. 9 is a diagram illustrating determination target data on which a mesh selected by the worker B based on the first embodiment and other meshes are displayed.

  A screen 150 shown in FIG. 9 is an example of a two-view screen having two image display areas 102 and 104 having the same shape and size side by side on the left and right.

  The case where the worker B selects the “no change” button BT2 by operating the operation unit 42 of the terminal 10B is shown.

  And in this example, the case where the mesh from which a house change is not detected by the operation part 42 is selected as a 2nd hatching area | region is shown.

  In addition, since the meshes of the previous year and the new year are in a correspondence relationship, the mesh hatching area designated by the operation unit 42 for one is effective for the other mesh.

  The meshes with the possibility of house change selected from the determination areas of the previous year and the new year and the meshes with a low possibility of house change are displayed as different first and second hatching areas, respectively.

As a result, it is possible to determine whether there is a possibility of a house change by a simple method.
In addition, it is possible to easily indicate to the worker B which area has been read by displaying the second hatched area as a mesh having a low possibility of house change. Thereby, it is possible to improve the work efficiency of reading.

  In this example, after selecting the “changed” button BT1 and selecting the mesh in which the house change was detected, selecting the “no change” button BT2 and selecting the mesh in which the house change was not detected. As described above, the order is not particularly limited. After selecting a “no change” button BT2 and selecting a mesh in which house change is not detected, a mesh in which house change is detected by selecting “with change” button BT1. May be selected.

  FIG. 10 is a diagram for explaining the combination determination target data displayed and output on the display unit 44 of the terminal 10D based on the first embodiment. The terminal 10D is an administrator's terminal.

  The administrator can check the synthesis determination target data created by the server 5 by operating the terminal 10D.

  A screen 160 shown in FIG. 10 shows synthesis determination target data obtained by synthesizing meshes selected by the workers A and B.

  In this example, in order to require accuracy like grasping of fixed assets, a house change between two periods is detected by a plurality of workers. The meshes selected by the worker A and the worker B are combined and displayed as a hatched area.

  As a result, the mesh selected by the worker A as a location where there is a possibility of house change and the mesh selected by the worker B as a location where there is a possibility of house change are combined and displayed.

  The administrator can reconfirm the presence or absence of a house change by paying attention to the location, and can improve the efficiency of the interpretation work.

FIG. 11 is a flowchart illustrating the processing of the server 5 based on the first embodiment.
Referring to FIG. 11, CPU 20 of server 5 generates determination target data (step S2).

  Specifically, the determination image generation unit 22 indicates the shape of the house from above in the target area based on the spatial information measurement data composed of the numerical surface model data (DSM data) and the aerial captured image in two periods. A determination target image is generated as determination target data.

Next, the CPU 20 sets a mesh (step S4).
Specifically, the mesh setting unit 24 sets a predetermined mesh in the determination area.

Next, the CPU 20 outputs a determination work screen (step S5).
Specifically, the determination work processing unit 25 outputs the determination target data generated as described with reference to FIG. 4 and data related to the set mesh area as a determination work screen.

Next, the CPU 20 determines whether or not there is a change selection (step S6).
Specifically, as described with reference to FIG. 5, the CPU 20 determines whether or not there is a selection for the presence of a change in the mesh in which the change in the house is detected by the operation of the operation unit 42 of the first worker (worker A). To do.

  If the CPU 20 determines that there is a change selection (YES in step S6), it sets that there is a house change corresponding to the mesh (step S8).

Then, the CPU 20 determines whether or not the determination work has been completed (step S10).
Specifically, it is determined whether or not an instruction to end the work is received by an end button (not shown in FIG. 5) by operating the operation unit 42 of the first worker (worker A).

  On the other hand, when the CPU 20 determines in step S10 that the determination work is not completed (NO in step S10), the CPU 20 returns to step S6 and repeats the above processing.

  On the other hand, if it is determined in step S6 that there is no selection with a change (NO in step S6), it is determined whether there is a selection without a change (step S12).

  Specifically, as described with reference to FIG. 6, the CPU 20 determines whether or not there is a selection of no change with respect to the mesh in which the house change is not detected by the operation of the operation unit 42 of the first worker (worker A). .

  When CPU 20 determines that there is no change selection (YES in step S12), it sets that there is no house change corresponding to the mesh (step S14).

Then, the CPU 20 determines whether or not the determination work has been completed (step S10).
On the other hand, when CPU 20 determines in step S12 that there is no selection of no change (NO in step S12), the process proceeds to step S10.

  If the CPU 20 determines in step S10 that the determination work has been completed (YES in step S10), the CPU 20 stores it in the memory 16 (step S16).

Then, the process ends (END).
Specifically, the CPU 20 stores in the memory 16 data relating to the mesh (first hatching area) set as having house changes and the mesh (second hatching area) set as having no house changes in association with the determination target data. To do.

  FIG. 12 is a flowchart illustrating the generation of synthesis determination target data in the server 5 based on the first embodiment.

  Referring to FIG. 12, CPU 20 determines whether or not there is a combination instruction (step S20). For example, the server 5 receives an instruction for a synthesis process on the target determination target data from the administrator's terminal 10D.

  In step S20, the CPU 20 stands by in step S20 until it is determined that there is a combination instruction. If CPU 20 determines that there is a compositing instruction (YES in step S20), CPU 20 acquires the saved first and second candidate areas (step S22).

  Specifically, the synthesis unit 30 instructs the first extraction unit 26 and the second extraction unit 28 to execute the extraction process.

  The first extraction unit 26 extracts a mesh (first hatched area) set as having house change selected by the worker A stored in the memory 16.

  The second extraction unit 28 extracts a mesh (first hatched area) set as having house change selected by the worker B stored in the memory 16.

  The first extraction unit 26 and the second extraction unit 28 output the extracted mesh to the synthesis unit 30 as first and second candidate regions, respectively.

Next, the CPU 20 performs a composite output (step S24).
Specifically, the synthesizing unit 30 synthesizes and outputs the mesh extracted as the first and second candidate regions. Specifically, the composition unit 30 outputs the composition determination target data to the administrator's terminal 10D.

  As described with reference to FIG. 10, the administrator terminal 10 </ b> D displays the synthesis determination target data on the display unit 44.

Next, the CPU 20 determines whether or not there is a change change (step S26).
Specifically, the composition unit 30 determines whether or not there is an instruction to change the mesh displayed by the operation of the operation unit 42 of the administrator's terminal 10D. For example, the administrator selects a mesh that is determined to be further changed by the operation of the operation unit 42. Alternatively, the selection of the mesh determined that there is no change is canceled.

  CPU20 performs a change process, when it is judged that there exists a change change (in step S26 YES) (step S28).

  Specifically, the synthesis unit 30 performs re-synthesis output based on the contents changed by the operation of the operation unit 42 by the operator. For example, a mesh determined to be further changed by the operator's operation of the operation unit 42 is added and displayed. Alternatively, the selection of the mesh that is determined not to be changed by the operation of the operation unit 42 by the operator is canceled and synthesized.

Then, the process ends (END).
On the other hand, when CPU 20 determines that there is no change in change (NO in step S26), it ends the process (end).

  By combining and displaying information related to house changes detected by multiple workers, the administrator can reconfirm the presence or absence of house changes by paying attention to the location, improving the efficiency of interpretation work. It is possible.

(Modification)
In the first embodiment, the method of combining and displaying the meshes extracted as the first candidate region and the second candidate region has been described as the combining process. However, the present invention is not limited to this, and other combining processes are executed. You may do it.

  FIG. 13 is a diagram illustrating the combination determination target data displayed and output on the display unit 44 of the terminal 10D based on the first modification of the first embodiment.

  A screen 200 shown in FIG. 13 shows synthesis determination target data obtained by synthesizing meshes selected by the workers A and B.

  In this example, in order to require accuracy like grasping of fixed assets, a house change between two periods is detected by a plurality of workers. The meshes selected by the worker A and the worker B are combined and displayed as a hatched area.

  In particular, in this example, the mesh selected by both the worker A and the worker B and the mesh selected by only one of the worker and the worker B are combined and displayed in different display forms.

  As an example, a mesh selected by both the worker A and the worker B is displayed based on the first color, and a mesh selected by only one of the worker A and the worker B is displayed based on the second color. You may do it. Moreover, you may make it display the mesh which was not selected based on a 3rd color.

  It is possible to determine whether or not there is a possibility of a house change by a simple method by the composite display.

  The manager can detect the degree of possibility of house change by color, thereby enabling highly accurate detection and improving the efficiency of the interpretation work.

  FIG. 14 is a diagram illustrating the combination determination target data displayed and output on the display unit 44 of the terminal 10D based on the second modification of the first embodiment.

  A screen 210 shown in FIG. 14 shows synthesis determination target data obtained by synthesizing meshes selected by the workers A and B.

  In this example, in order to require accuracy like grasping of fixed assets, a house change between two periods is detected by a plurality of workers. The meshes selected by the worker A and the worker B are combined and displayed as a hatched area.

  In particular, in this example, a mesh selected by only one of the worker and the worker B is synthesized and displayed.

  It is possible to determine whether or not there is a possibility of a house change by a simple method by the composite display.

  The mesh selected by only one of the worker A and the worker B has a low probability of having a house change, so by displaying only the mesh, it can be reconfirmed to enable highly accurate detection and management. It is possible to improve the efficiency of interpretation work by a person.

  Note that there are various methods of combining, and the method of combining output may be switched respectively.

(Embodiment 2)
In the first embodiment described above, a method has been described in which a plurality of workers detect the presence or absence of a house change by the operation unit 42 as a plurality of work processes, but the CPU executes at least a part of the work processes. You may do it.

FIG. 15 is a diagram illustrating a configuration of server 5A according to the second embodiment.
Referring to FIG. 15, server 5A is different from server 5 in that CPU 20 is replaced with CPU 20A.

  The CPU 20A implements various functional blocks by executing programs stored in the memory 16.

  The CPU 20A is different from the CPU 20 in that the function of the automatic determination unit 23 is further added. Since other configurations are the same, detailed description thereof will not be repeated.

  The house change interpretation support system 1 according to the second embodiment performs a work (a plurality of work processes) for reading a house change between two periods for the same determination target data a plurality of times.

  As an example, as a plurality of work processes, an operation of reading a house change between two periods for determination target data according to CPU automatic determination and a house change between two periods for the same determination target data by a certain worker are performed. Perform reading work.

  The house change interpretation support system 1 according to the second embodiment includes a house change determination result between two periods for the determination target data according to the automatic determination of the CPU and a house change between the two periods for the determination target data according to the worker. The combination determination target data obtained by combining the determination results is output.

  By outputting the combination determination target data, it is possible to improve the accuracy of the work of reading the house change.

  It is possible to further improve the work efficiency by including a work process according to the automatic determination of the CPU.

  FIG. 16 is a diagram for explaining determination target data in which a house change is detected by the CPU based on the second embodiment.

  A screen 300 shown in FIG. 16 is an example of a two-view screen having two image display areas 102 and 104 having the same shape and size side by side on the left and right.

  In this example, the case where the area | region 310 where the house determination was detected by the automatic determination part 23 is displayed is shown. For example, the mesh included in the region 310 can be set as the first hatched region.

  Various detection methods can be employed, and house changes can be detected by comparing images such as pattern matching.

  Further, the present invention is not limited to comparison between images, and it is also possible to detect house changes by comparing height data using DSM data or the like. Or it is also possible to detect a house change by texture analysis.

  In this example, the case where the area 310 in which the house change is detected is displayed has been described. However, the area 310 may not be displayed, and only the determination result may be stored in the memory 16.

  Hereinafter, the process of the server 5 will be described. The processing of the server 5 is the same as the processing described with reference to FIG.

  The first extraction unit 26 selects a mesh in which a house change is detected between the two periods among the predetermined meshes set by the mesh setting unit 24 by the automatic determination unit 23 of the CPU as a first work process. Extracted as one candidate area.

  The second extraction unit 28 uses, as a second candidate region, a mesh in which a house change is detected between the two periods among the predetermined meshes set by the mesh setting unit 24 by the worker as the second work step. Extract.

  The synthesizing unit 30 generates and outputs synthesized synthesis determination target data based on the mesh extracted as the first and second candidate regions.

  Thereby, by performing a part of detection of a house change by an automatic process, the mesh extracted as a location with the possibility of a house change is synthesize | combined and displayed.

  Therefore, the administrator can pay attention to the part and confirm it, and can improve the efficiency of the interpretation work.

  An application that can be executed by a personal computer may be provided as the program in the present embodiment. At this time, the program according to the present embodiment may be incorporated as a partial function of various applications executed on the personal computer.

  In the first and second embodiments, the case where the house change interpretation support system 1 includes a server and a plurality of terminals connected via a network has been described. However, various functions are included in one device. It is also possible to provide a stand-alone house transfer interpretation support device.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present disclosure is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  10, 10A House change interpretation support device, 14 display unit, 16 memory, 18 operation unit, 22, 22A determination image generation unit, 24 mesh setting unit, 26, 26A first extraction unit, 28, 28A second extraction unit, 30 Compositing unit, 102, 104 image display area, 106, 108 mesh area.

Claims (5)

A house change interpretation support system that supports the work of deciphering house changes between both periods based on determination target data indicating the shape of the house in the target area in the first and second periods,
A determination image generation unit that generates, as the determination target data, first and second determination target images in which the shape of the house from above in the target region is shown based on the spatial information measurement data in both periods;
A mesh setting unit that sets a predetermined mesh in a determination region of the first and second determination target images generated by the determination image generation unit;
A first extraction unit that extracts, as a first candidate region, a mesh in which a house change between the two periods of the predetermined mesh set by the mesh setting unit in the first work process is detected;
A second extraction unit for extracting, as a second candidate region, a mesh in which a house change between the two periods of the predetermined mesh set by the mesh setting unit in the second work process is detected;
A house change interpretation support system comprising: a synthesis unit that outputs synthesized synthesis target data based on the meshes extracted as the first and second candidate areas. The synthesis unit is
As the synthesis determination target data,
Outputting the first color to the mesh extracted as the first and second candidate regions of the predetermined mesh of the first and second determination target images,
The house change interpretation according to claim 1, wherein the second color is output so as to be displayed with respect to a mesh other than the first and second candidate areas among the predetermined meshes of the first and second determination target images. Support system. The synthesis unit is
As the synthesis determination target data,
The first and second determination target images are output so that the first color is displayed for the meshes included in both of the predetermined meshes extracted as the first and second candidate regions. ,
Output so that the second color is displayed for meshes included in only one of the meshes extracted as the first and second candidate regions among the predetermined meshes of the first and second determination target images. And
2. The house change interpretation according to claim 1, wherein output is performed so that a third color is displayed for a mesh other than the first and second candidate areas among the predetermined meshes of the first and second determination target images. Support system. A house change interpretation support method for supporting the work of interpreting house changes between both periods based on determination target data indicating the shape of the house in the target area in the first and second periods,
Generating, as the determination target data, first and second determination target images showing the shape of the house from above in the target region based on the spatial information measurement data in both periods;
Setting a predetermined mesh in a determination area of the generated first and second determination target images;
In the first work process, detecting a house change between the two periods based on the determination target data among the set predetermined mesh;
In the second work process, a step of detecting a house change between the two periods based on the determination target data among the set predetermined mesh;
Extracting the mesh in which the change is detected as the first candidate area in the first work process;
Extracting the mesh in which the change is detected as the second candidate area in the second work step;
A house change interpretation support method comprising: outputting synthesized synthesis target data based on the meshes extracted as the first and second candidate areas. The computer is caused to function as a house movement interpretation support device that supports the work of interpreting the house movement between the two periods based on the determination target data indicating the shape of the house in the target area in the first and second periods. A program for
The program is stored in the computer.
A determination image generation unit that generates, as the determination target data, first and second determination target images in which the shape of the house from above in the target region is shown based on the spatial information measurement data in both periods;
A mesh setting unit that sets a predetermined mesh in a determination region of the first and second determination target images generated by the determination image generation unit;
A first extraction unit that extracts, as a first candidate region, a mesh in which a house change between the two periods of the predetermined mesh set by the mesh setting unit in the first work process is detected;
A second extraction unit for extracting, as a second candidate region, a mesh in which a house change between the two periods of the predetermined mesh set by the mesh setting unit in the second work process is detected;
A house change interpretation support program that functions as a synthesis unit that outputs synthesized synthesis target data based on the meshes extracted as the first and second candidate areas.

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