Information processing device, information processing method, and program

Abstract

The objective is to provide technology that uses computers to efficiently determine the degree of land deformation. [Solution] One aspect of the present disclosure relates to an information processing device comprising: an acquisition unit that acquires a land polygon representing a land subject to determination; a determination unit that determines the degree of deformation of the land subject to determination based on the outer perimeter and area of ​​the land polygon; and an output unit that outputs the degree of deformation.

Description

Technical Field

[0001] The present disclosure relates to an information processing apparatus, an information processing method, and a program.

Background Art

[0002] The use of information and communication technologies has spread to various industrial fields. For example, the introduction of information and communication technologies has also spread to the real estate industry, and such real estate-related information and communication technologies are called proptech. Currently, the use of information and communication technologies is also progressing in the mediation of real estate properties and remote property viewings.

[0003] A Geographic Information System (GIS) enables a user to utilize geospatial information on a computer. In a geographic information system, polygon data that represents geographic regions and features as polygons is used. The polygon data indicates land divisions, building shapes, etc., and is associated with attribute information such as the purpose of use and owner information of the features, and topology data indicating spatial relationships (connection, adjacency, inclusion, etc.) between the features.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the evaluation of land value, in addition to the location, area, floor area ratio, length of access road to the public road, etc. of the land, the shape of the land is also recognized as one of the important factors. When the shape of the land to be evaluated is regular, the value of the land is highly evaluated, and when the shape of the land is deformed, the value of the land tends to be evaluated low.

[0006] The objective of this disclosure is to provide a technology for efficiently determining the degree of land deformation using a computer. [Means for solving the problem]

[0007] One aspect of the present disclosure relates to an information processing device comprising: an acquisition unit that acquires a land polygon representing a land subject to determination; a determination unit that determines the degree of deformation of the land subject to determination based on the outer perimeter and area of ​​the land polygon; and an output unit that outputs the degree of deformation. [Effects of the Invention]

[0008] According to this disclosure, a technology can be provided for efficiently determining the degree of land deformation using a computer. [Brief explanation of the drawing]

[0009] [Figure 1] Figures 1A to 1C are schematic diagrams showing various shapes of land according to one embodiment of the present disclosure. [Figure 2] Figure 2 is a block diagram showing the hardware configuration of an information processing device according to one embodiment of the present disclosure. [Figure 3] Figure 3 is a block diagram showing the functional configuration of an information processing device according to one embodiment of the present disclosure. [Figure 4] Figure 4 is an image diagram of a screen display according to one embodiment of the present disclosure. [Figure 5] Figure 5 is a flowchart showing the map information display process according to one embodiment of the present disclosure. [Modes for carrying out the invention]

[0010] Embodiments of this disclosure will be described below with reference to the drawings.

[0011] The following embodiment discloses an information processing device for determining the degree of land deformation.

[0012] [overview] An information processing device 100 according to one embodiment of the present disclosure acquires a land polygon representing the land to be determined, and determines and outputs the degree of deformation of the land to be determined based on the perimeter and area of ​​the acquired land polygon. Land polygons can be obtained from government agencies such as the relevant government agencies, local governments, and various public institutions, and can be used on geographic information systems. Typically, a land polygon may include geographic data showing location information such as latitude and longitude of the land, geographic data showing the land's shape information, attribute data such as the land's use, owner, place name, and area, and topology data showing spatial relationships with other polygons (e.g., connection, adjacency, inclusion, etc.).

[0013] The degree of deformation according to one embodiment of this disclosure is an indicator of how much the land has deformed, for example, perimeter [m] / area [m] 2 It may also be calculated by [ ]. In this case, a smaller calculated value indicates a lower degree of deformation, and a larger calculated value indicates a higher degree of deformation. For example, Figures 1A to 1C show plots of land of the same area but different shapes. The degree of deformation of the square plot of land shown in Figure 1A is 40 / 100 = 0.40, which is judged to be the lowest degree of deformation, i.e., the highest degree of regularity. The degrees of deformation of the plots of land shown in Figures 1B and 1C are 58 / 100 = 0.58 and 46 / 100 = 0.46, respectively.

[0014] Although the land areas shown in Figures 1A to 1C are equal, the degree of deformation of the land shown in Figures 1B and 1C is determined to be higher than that of the land shown in Figure 1A, according to the above calculation.

[0015] In the following embodiment, for example, when a user specifies a geographic area in map information displayed on a display, the information processing device 100 acquires land polygons representing each piece of land included in the specified geographic area, and calculates the degree of deformation of each piece of land based on the shape information of the geographic data of the acquired land polygons. The information processing device 100 may then display the calculated degree of deformation for each piece of land on the map information, or it may display on the map information only land that has a calculated degree of deformation below a predetermined threshold.

[0016] According to such an information processing apparatus 100, the user can easily confirm the whole land (land with leveling) existing within the geographical area by designating a desired geographical area in the map information displayed on the display.

[0017] Here, the information processing apparatus 100 may have, for example, a hardware configuration as shown in FIG. 2. That is, the information processing apparatus 100 includes a storage device 101, a memory device 102, a processor 103, and a communication device 104 that are interconnected via a bus B.

[0018] Programs and / or data for realizing various functions and processes in the information processing apparatus 100 are downloaded from an external device and / or network via the communication device 104 to the storage device 101 or the memory device 102.

[0019] The storage device 101 is realized by a non-volatile memory or the like, and stores installed or downloaded programs or data (for example, files, etc.).

[0020] The memory device 102 is realized by a random access memory, a static memory, etc. When a program or instruction is activated, the memory device 102 reads and stores programs, instructions, data, etc. from the storage device 101. The storage device 101, the memory device 102, and the removable storage medium may be collectively referred to as a non-transitory storage medium.

[0021] The processor 103 may be realized by one or more CPUs (Central Processing Units), GPUs (Graphics Processing Units), processing circuits, etc. that may be composed of one or more processor cores, and executes various functions and processes of the information processing apparatus 100 according to programs, instructions, data such as parameters necessary for executing the programs or instructions, etc. stored in the memory device 102.

[0022] The communication device 104 is implemented by various communication circuits that perform wired and / or wireless communication processing with external devices, the Internet, LAN (Local Area Network), cellular networks, and other communication networks.

[0023] However, the hardware configuration described above is merely an example, and the information processing device 100 according to this disclosure may be implemented by any other suitable hardware configuration.

[0024] [Information Processing Device] Next, an information processing device 100 according to one embodiment of the present disclosure will be described. Figure 3 is a block diagram showing the functional configuration of the information processing device 100 according to one embodiment of the present disclosure. As shown in Figure 3, the information processing device 100 has an acquisition unit 110, a determination unit 120, and an output unit 130. Each of the functional units of the acquisition unit 110, the determination unit 120, and the output unit 130 can be realized by the processor 103 of the information processing device 100 executing a program stored in the memory device 102.

[0025] The acquisition unit 110 acquires land polygons representing the land to be determined. For example, if a user specifies a desired geographic area on map information displayed on a screen provided by a geographic information system, the acquisition unit 110 acquires land polygons for each piece of land included in the specified geographic area. In other words, the land to be determined can be specified on the map information.

[0026] Land polygons are available from government agencies such as the relevant government ministries, local authorities, and various public institutions, and are usable on geographic information systems. Typically, land polygons may include geographic data indicating the location and shape of the land, such as latitude and longitude; attribute data indicating the land's use, owner, place name, and area; and topology data indicating spatial relationships with other polygons (e.g., connection, adjacency, inclusion, etc.). The shape information of a land polygon typically represents a polygonal shape such as a quadrilateral.

[0027] The acquisition unit 110 provides the acquired land polygons to the determination unit 120.

[0028] The determination unit 120 determines the degree of deformation of the land to be determined based on the perimeter and area of ​​the land polygon. For example, the determination unit 120 determines the perimeter and area of ​​each land polygon from its geographical data, and calculates the degree of deformation = perimeter [m] / area [m] from the determined perimeter and area. 2 The degree of deformation may also be calculated according to the formula shown below. That is, the higher the ratio of the perimeter to the area, the higher the degree of deformation (i.e., the lower the degree of shape), and the lower the ratio of the perimeter to the area, the lower the degree of deformation (i.e., the higher the degree of shape).

[0029] Furthermore, the degree of land deformation is not necessarily limited to the calculation formula described above. For example, it may be determined by other ratios of perimeter to area, or by other calculation formulas using perimeter and area.

[0030] For example, another calculation formula using perimeter and area is to calculate the degree of deformation by using the ratio (multiple) of the degree of deformation of different shaped plots of the same area to the degree of deformation of a normalized figure for a given area. Here, the normalized figure may be a square or a circle. By comparing the ratio of the degree of deformation of plots of the same area when the degree of deformation of a square or a circle is set to 1, plots of different areas can also be compared.

[0031] The determination unit 120 provides the determined degree of deformation to the output unit 130.

[0032] The output unit 130 outputs the degree of deformation. Specifically, the output unit 130 may display the degree of deformation calculated in association with the land subject to judgment on the map information. Alternatively, the output unit 130 may display land with a degree of deformation below a predetermined threshold (i.e., land with a high degree of regularity) in a geographic area specified on the map information.

[0033] For example, as shown in Figure 4, when a user wants to search for land with a deformation degree of 0.5 or less in a geographic area specified on the map information, the output unit 130 may highlight the land with a deformation degree of 0.5 or less specified by the user on the map information. For example, the output unit 130 may color-code the land with a deformation degree of 0.5 or less with a different color from other land, make it blink, or mark it with a marker or the like. This allows the user to easily identify land with a deformation degree of 0.5 or less specified on the map information they are viewing.

[0034] Of course, the user's specification of the degree of deformation is not limited to "X or less," but may also be done by specifying other conditions such as "X or greater" or "less than X."

[0035] According to the information processing device 100 described above, the user can visually grasp land with a deformation degree below a predetermined level within a desired geographic area by specifying that geographic area on the map information.

[0036] [Map information display processing] Next, a map information display process according to one embodiment of the present disclosure will be described. This map information display process can be implemented by the information processing device 100, more specifically by the processor 103 of the information processing device 100 executing a program stored in the memory device 102. Figure 5 is a flowchart of the map information display process according to one embodiment of the present disclosure.

[0037] As shown in Figure 5, in step S101, the information processing device 100 acquires land polygons representing the land to be determined. For example, the information processing device 100 may acquire land polygons for each piece of land included in the geographic area on the map information being viewed by the user. Alternatively, the information processing device 100 may acquire land polygons included in a geographic area specified by the user (e.g., a specified address, a specified range from a specified station, etc.). These land polygons may be acquired from one or more data sources, such as a geographic information system.

[0038] In step S102, the information processing device 100 determines the degree of deformation of the land to be judged based on the perimeter and area of ​​the land polygon. For example, the information processing device 100 determines the length of the perimeter and the size of the area of ​​each land polygon based on the shape information of the geographic data acquired for each land polygon. The perimeter and / or area of ​​the land polygon can be calculated using any known image processing technique.

[0039] Once the perimeter and area are obtained, the information processing device 100 can determine the degree of deformation of the land based on the ratio of the perimeter to the area (for example, perimeter / area). For example, if the degree of deformation is calculated by perimeter / area, the information processing device 100 may determine that the greater the calculated value, the greater the degree of deformation, and that the smaller the calculated value, the less the degree of deformation.

[0040] The above-mentioned formula for calculating the degree of deformation is merely an example, and any other appropriate formula derived from the perimeter and area may be used.

[0041] In step S103, the information processing device 100 outputs the degree of deformation. For example, the information processing device 100 may display the degree of deformation of each plot of land on the map information being viewed by the user, and / or may highlight plots of land with a degree of deformation less than or equal to that specified by the user.

[0042] According to the map information display process described above, users can visually understand land with a deformation degree below a predetermined level within a desired geographical area by specifying that area on the map information.

[0043] Although embodiments of this disclosure have been described in detail above, this disclosure is not limited to the specific embodiments described above, and various modifications and changes are possible within the scope of the gist of this disclosure as described in the claims. [Explanation of symbols]

[0044] 100 Information Processing Devices 110 Acquisition Department 120 Judgment section 130 Output section

Claims

1. An acquisition unit that acquires land polygons representing the land to be judged, A determination unit that determines the degree of deformation of the land to be determined based on the perimeter and area of ​​the land polygon, An output unit that outputs the degree of deformation, An information processing device having

2. The information processing apparatus according to claim 1, wherein the determination unit determines the degree of deformation based on the ratio of the outer circumference to the area.

3. The higher the ratio of the outer circumference to the area, the higher the degree of deformation, and the lower the ratio of the outer circumference to the area, the lower the degree of deformation, according to claim 2.

4. The information processing device according to claim 1, wherein the land subject to determination is specified on map information.

5. The information processing device according to claim 1, wherein the output unit displays the degree of deformation in relation to the land subject to determination on the map information.

6. The information processing apparatus according to claim 1, wherein the output unit displays land in a geographic area specified on the map information where the degree of deformation is less than or equal to a predetermined threshold.

7. Obtaining a land polygon that represents the land to be judged, Based on the perimeter and area of ​​the aforementioned land polygon, the degree of deformation of the land subject to determination is determined. Outputting the degree of deformation, An information processing method in which one or more computers perform the processing.

8. Obtaining a land polygon that represents the land to be judged, Based on the perimeter and area of ​​the aforementioned land polygon, the degree of deformation of the land subject to determination is determined. Outputting the degree of deformation, A program that causes one or more computers to execute a command.

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