JP2023091828A - Image generation device, image generation method and computer program - Google Patents

Abstract

To provide a technique enabling setting of a ground line and generation of an accurate image in generating an image of constructing a building on a land.SOLUTION: An image generation device 1 comprises a building information storage part 1A for storing a building image relating to a three-dimensional image of a prescribed building, a land information storage part 1B for storing a land image relating to the three-dimensional image of the prescribed land, reception means for receiving designation of a prescribed point as a GL reference point, the reference of a ground line in the prescribed land, and a synthesis processing part 13 for synthesizing the building image on the land image to generate a synthesized image. The synthesis processing part 13 synthesizes the building image on the land image, with coordinates in the vertical direction of the designated prescribed point used as the ground line.SELECTED DRAWING: Figure 1

Description

The present invention relates to a technique for synthesizing a building image with a land image.

When planning to purchase a building and purchasing land, or when constructing a building on land that is owned, the building is designed and ordered based on the architectural image of the building. It is difficult for human beings to accurately recognize the actual image. In addition, it is difficult for traders to present the actual image to consumers and others to get them to grasp the specific image. Therefore, there is a demand to be able to accurately recognize a specific image when a predetermined building is constructed on a predetermined land.

In this respect, for example, in Patent Document 1, information on real estate that is a candidate for purchase is displayed on the terminal of the prospective purchaser, which is connected to a terminal of the prospective purchaser used by the prospective purchaser in response to a request from the terminal of the prospective purchaser. an input unit for inputting real estate search information output from the purchase consideration terminal, and learning information about real estate based on the real estate search information input by the input unit. Using the learning results, the land information of the candidate land for purchase is extracted from the land information of multiple candidate lands, and the building information of the building that can be built on the land specified by the extracted land information is acquired. an extraction unit for extracting from building information of a plurality of buildings that can be candidates; and a building specified by the building information extracted by the extraction unit is built on land specified by the land information extracted by the extraction unit. A real estate information output device has been proposed that includes an output control unit that displays an image that looks like a real estate as information of the real estate that is a candidate for purchase on the terminal of the prospective purchaser.

Japanese Patent Application Laid-Open No. 2019-145100

However, since there are undulations in the actual land, it is necessary to construct retaining walls, develop land, or excavate the land when building a building on the land. The content and finish of such construction will change depending on how the construction is installed. As a result, even if the image of the building is simply combined with the image of the land, there is a lack of accuracy in the actual image.

SUMMARY OF THE INVENTION Accordingly, one of the objects of the present invention is to provide a technique that enables the setting of a ground line in generating an image of a building built on land, thereby generating an accurate image.

In order to achieve the above object, an image generation apparatus according to one aspect of the present invention includes building information storage means for storing a building image related to a three-dimensional image of a predetermined building; Land information storage means for storing an image; Receiving means for receiving designation of a predetermined point as a GL reference point that serves as a ground line reference on the predetermined land; , wherein the synthesis processing means synthesizes the building image with the land image using the vertical coordinate of the designated point as a ground line.

The apparatus may further include output means for outputting, as an edited image, the synthesized image in which gaps and/or overlaps occurring between the land image and the building image are edited in the synthesized image.

The apparatus may further include editing means for editing gaps and/or overlapping portions between the land image and the building image in the composite image.

The apparatus may further include determination means for determining whether or not architectural restrictions can be cleared when the building is built on the land with the vertical coordinate of the designated point as the ground line.

The judging means judges whether or not a height limit peculiar to the land can be cleared when the building is built on the land with the vertical coordinate of the designated point as the ground line, and the building information The storage means may store information relating to the height of the building, and the land information storage means may store information relating to height restrictions specific to the land.

The judging means judges whether or not a shadow limit for the surroundings can be cleared when the building is built on the land with the vertical coordinate of the designated point as the ground line, and stores the may store information relating to the shade restriction for the surroundings of the land.

The land image may include an image around the land.

The synthesizing means may synthesize the building image with the land image on the basis of a value obtained by adding or subtracting a predetermined value to the vertical coordinate of the designated point.

The land image may further include recommendation means for displaying a point to be recommended as the predetermined point.

An image generation method according to another aspect of the present invention includes building information storage means for storing a building image related to a three-dimensional image of a predetermined building, and land information storage for storing a land image related to a three-dimensional image of predetermined land. a receiving process for accepting designation of a predetermined point as a GL reference point that serves as a ground line reference on the predetermined land; and synthesizing the building image with the land image to generate a composite image. and a synthesizing process for synthesizing the building image with the land image using the vertical coordinate of the designated point as a ground line.

A computer program according to another aspect of the present invention includes building information storage means for storing a building image related to a three-dimensional image of a predetermined building, and land information storage means for storing a land image related to a three-dimensional image of a predetermined land. and a receiving process for accepting designation of a predetermined point as a GL reference point that serves as a ground line reference on the predetermined land; and synthesizing the building image with the land image to generate a composite image. and a synthesizing process for synthesizing the building image with the land image using the vertical coordinate of the designated point as a ground line.

The computer program can be provided by downloading via a network such as the Internet, or can be provided by being recorded on various computer-readable recording media such as a CD-ROM.

According to the present invention, it is possible to set a ground line in generating an image of a building built on land, and as a result, it is possible to generate an accurate image.

1 is a functional block diagram showing functions provided in an image generation device according to an embodiment of the present invention; FIG. FIG. 4 is a diagram showing an example of data stored in a building information storage unit in the image generation device according to the embodiment; FIG. 3 is a diagram showing an example of data stored in a land information storage unit in the image generation device according to the embodiment; FIG. 2 is a diagram showing an example of data stored in a restriction information storage unit in the image generation device according to the embodiment; 4 is a processing flow diagram showing the flow of processing by the image generation device according to the embodiment; FIG. It is a figure showing an example of an output screen by an image generation device concerning this embodiment. It is a figure showing an example of an output screen by an image generation device concerning this embodiment. It is a figure showing an example of an output screen by an image generation device concerning this embodiment. It is a figure showing an example of an output screen by an image generation device concerning this embodiment. It is a figure showing an example of an output screen by an image generation device concerning this embodiment. It is a figure showing an example of an output screen by an image generation device concerning this embodiment. It is a figure showing an example of an output screen by an image generation device concerning this embodiment. It is a figure showing an example of an output screen by an image generation device concerning this embodiment. It is a figure showing an example of an output screen by an image generation device concerning this embodiment. It is a figure showing an example of an output screen by an image generation device concerning this embodiment.

Outline The image generation device 1 according to the embodiment of the present invention shown in FIG. It is a device that enables you to grasp the image concretely. Using this image generating apparatus 1, a user can concretely express what kind of building is to be built on a predetermined land and in what form, or whether a desired building can be built on a predetermined land in a way that he/she thinks. It can be understood with an image.

In particular, in this embodiment, it is possible to set a ground line in generating an image of a building built on land. The ground line is also known as “ground surface (planned height of the ground)” or “GL”. Based on the setting of this ground line, the vertical position of the building is determined. When a building is constructed on top, the height of the building relative to the surrounding ground will change. The user can specify an arbitrary point on the land as the GL reference point that serves as the reference of the ground line, and the image generation device 1 creates an image of a building constructed with the point specified by the user as the GL reference point. to generate

● Functional configuration As shown in FIG. 1, an image generating apparatus 1 according to the embodiment of the present invention is implemented by a so-called computer or the like, and includes a CPU (Central Processing Unit), RAM (Random Access Memory), ROM (Read Only Memory). ), hardware resources such as a hard disk drive, and software resources such as a computer program executed by a CPU, a building information storage unit 1A, a land information storage unit 1B, a restriction information storage unit 1C, a map information storage unit 1D, and an optional parts storage unit 1E. , an extraction processing unit 11 , a determination processing unit 12 , a synthesis processing unit 13 , an editing processing unit 14 and an input/output unit 15 .

The building information storage unit 1A is a storage unit that stores building information about buildings. A building whose information is stored in the building information storage unit 1A is a building that can be constructed by a construction company regardless of whether it is an actually constructed building.

For example, as shown in FIG. 2, the building information storage unit 1A stores basic information, a floor plan, and a building image for each building ID that identifies a building. However, all of these pieces of information are examples, and information such as the assessed price and type of the building that can be used to evaluate and understand the building can be included as appropriate.

The basic information consists of information related to building specifications such as total floor area, building area, and height. Necessary or useful information, etc., when making judgments, etc., are included as appropriate.

The floor plan is stored, for example, as a floor plan consisting of a two-dimensional image in a predetermined data format, and by referring to it, the layout and size of each room can be grasped.
A building image is a three-dimensional image of a building, and by synthesizing it with a three-dimensional image of land (land image), it is possible to intuitively and stereoscopically grasp an image of a building built on land. By synthesizing this building image with a land image of a predetermined land and a 3D image representing the surrounding environment included in the land image, a 3D image of the predetermined land and buildings constructed thereon is generated. .
The three-dimensional building image may include not only the exterior of the building but also the interior of the building. can grasp.

The land information storage unit 1B is a storage unit that stores land information related to land on which buildings are constructed. This land information is registered or updated by real estate owners, real estate agents, and the like.

For example, as shown in FIG. 3, the land information storage unit 1B stores basic information, coordinates, and land images for each land ID that identifies the land. However, all of this information is just an example, and information that can be used to understand the land, such as land access conditions, appraisal prices, population and age groups of residents in the surrounding area, and surrounding information such as nearby commercial facilities. can be included as appropriate.

The basic information consists of information such as the location and size of the land, such as the address and site area. Information that is necessary or useful when
The land information is composed of land-related information such as building coverage ratio, floor area ratio, site area, and land shape.

The coordinates are information indicating the coordinates of each predetermined position on the land. These coordinates are configured as three-dimensional coordinates, and by referring to the information of these coordinates, it is possible to grasp the height (elevation) of a predetermined position on the land and to grasp the boundary line or shape of the land.
The land image is a three-dimensional image of the land, and by synthesizing it with the three-dimensional image of the building, it is possible to three-dimensionally and intuitively grasp the image of a building built on the land.

The land information stores a two-dimensional land image corresponding to the land image made up of a three-dimensional image. A two-dimensional land image is configured, for example, as an image that allows a two-dimensional grasp of the shape and size of a given piece of land on a map.
Moreover, in addition to the three-dimensional image of the predetermined land identified by the land ID, the peripheral image may include a three-dimensional image around the predetermined land or surroundings. This peripheral image may be constructed separately from the predetermined land image, or may constitute a part of the land image. As a result, it is possible to accurately grasp the situation around the building when the building is built in the composite image obtained by combining the images of the building and the land. Further, when there is a building such as a neighboring house around or around a predetermined piece of land, the peripheral image may include an image of the inside of the neighboring house, a window, and the like.

The restriction information storage unit 1C is a storage unit that stores restriction information relating to legal or physical restrictions when constructing a predetermined building on a predetermined land. By definition, it is information that is specific to each land or region in which it resides.

For example, as shown in FIG. 4, this restriction information storage unit 1C stores building coverage ratio, floor area ratio, height restriction, road slanting restriction, adjacent land slanting line, north slanting line, shade regulation, etc. for each land ID that identifies the land. Reference information for judging the reason for the restriction of is stored. However, all of these pieces of information are examples, and it is possible to appropriately include information that serves as criteria for judging reasons for restrictions when constructing a building on a given piece of land.

By referring to this restriction information storage unit 1C, it is possible to determine whether or not there are legal or physical restrictions in constructing a given building on a given piece of land.

The map information storage unit 1D is a storage unit that stores a map that allows visually recognizing the location and shape of the land stored in the land information storage unit 1B. This map is composed of, for example, a two-dimensional map image, and in this land image, it is possible to comprehend the division of a predetermined land, the boundary with neighboring land, and the planar shape of the land.

By referring to this map information storage unit 1D, it is possible to grasp the location and surroundings of a predetermined piece of land. In addition, as will be described later, by superimposing a floor plan, which is a two-dimensional image of a building on a scaled map, on a map image showing the divisions and planar shape of a given piece of land, it is possible to determine whether or not the building fits on the given piece of land. In addition, it is possible to grasp in what direction the building fits or not.

The optional parts storage unit 1E is a storage unit that stores optional parts consisting of a three-dimensional image to be displayed in a synthesized image obtained by synthesizing a building image with a land image.
Optional parts are anything that helps you get a realistic image of what a building will look like when you build it on land, such as plants, gateposts, retaining walls, fences, warehouses, and cars. Various types or designs may be prepared.
In addition to the three-dimensional image, the optional parts storage unit 1E also registers a two-dimensional image corresponding to the three-dimensional image, and arranges the optional parts made up of the two-dimensional image on the land displayed two-dimensionally. and the placement of optional parts can be determined.

The extraction processing unit 11 refers to each information storage unit and executes processing for extracting predetermined information. For example, at the time of processing by the determination processing unit 12, predetermined information is extracted from the building information storage unit 1A, the land information storage unit 1B, and the restriction information storage unit 1C, and provided to the determination processing unit 12.

The judgment processing unit 12 executes judgment processing for judging whether or not a given building can be constructed on a given piece of land selected by the user regardless of laws or physical restrictions, that is, whether or not restrictions on construction can be cleared. . In the determination process, the user selects a predetermined land and a predetermined building that the user desires to construct on the predetermined land, the location and orientation of the building on the predetermined land, and the predetermined building. Designation of the ground line (ground surface) when building is received, and this information is used for determination processing.

In the specific process, necessary information is extracted from the building information storage unit 1A, the land information storage unit 1B, and the restriction information storage unit 1C for each item to be determined, and , Neighboring Land Slant Line, North Slant Line, Shade Regulation, etc.
For example, when executing the determination process for the height limit of a building, first, based on the selection of a predetermined land and a predetermined building by the user, the height of the predetermined building and the height limit on the predetermined land Get information. Then, it is determined whether or not the height limit specific to the predetermined land can be cleared when the predetermined building is built on the predetermined land.
In addition, when executing judgment processing for sunshade regulation, for the synthetic image, the shadow generated by setting the starting point of sunshine at the position stipulated by law, the time of sunshine due to the time change of sunshine, etc. is calculated, and it is determined whether or not the predetermined regulation can be cleared.
Note that the determination processing by the determination processing unit 12 may be performed for all items registered in the restriction information storage unit 1C, or may be performed for any arbitrary item.

The synthesizing unit 13 synthesizes the building image with the land image to generate a synthesized image.
In the image synthesis processing by the synthesis processing unit 13, the vertical and horizontal positions of the building image with respect to the land image are adjusted.

As for the vertical direction, the building image is combined with the land image using the vertical coordinates of a predetermined point specified by the user as the GL reference point on the predetermined land as the ground line. In other words, the actual land may have undulations, and in such cases, the actual height of the building, the necessity of construction or retaining wall construction, and the content of the building change depending on where the ground line is. In this respect, by receiving designation of a point that will be the GL reference point on a predetermined piece of land, it is possible to grasp how the building will be built if that point is any point. Note that the vertical coordinates of the predetermined point can be obtained by referring to the land information storage unit 1B.

As for the horizontal direction, information about the position and orientation of a given building on a given plot of land is acquired in advance from the user, and this information is reflected. The information on the position and orientation of the building with respect to the land, for example, shows the user a two-dimensional image of the layout of the building and the land, and allows the user to display the two-dimensional image of the floor plan of the building at an arbitrary position and orientation of the land. It can be acquired by having it placed on the image.

The composite image generated in this way is output on the screen using Ajax or the like, and the user can check the composite image from various angles by performing appropriate operations to see how the building will look on the land. It is possible to grasp whether it will be built in

The editing processing unit 14 executes processing for editing gaps and/or overlapped portions between the land image and the image of the other store in the synthesized image. That is, when a building image is combined with a land image using a predetermined point on a predetermined land as a ground line, if the land has undulations, gaps may occur between the foundation of the building and the land, or the building image may be distorted. There may be overlapping portions where the foundations of the buildings inside are sunk into the land in the land image. The editing processing unit 14 edits such gaps and overlapping portions so as to fit images of retaining walls and construction in the gaps, and excavates the land portion of the overlapping portions, so that the composite image is actually reproduced. It is an edited image in the state where the construction or construction is done.
It should be noted that images for retaining walls and construction used in the synthesis process are stored in the optional parts storage unit 1E, for example, and the user can select a desired type. The unit 14 may be configured to select and use what is set in advance.

The input/output unit 15 is a functional unit that enables data input/output, and includes data input means such as a keyboard, mouse, and microphone, output means such as a display and a speaker, or a touch panel that integrates the input means and the output means. It is realized by a display or the like.

Regardless of the present embodiment, the image generating apparatus 1 may be configured to be able to communicate with a predetermined terminal such as another personal computer or a portable data communication terminal via a network such as the Internet, and only data input/output can be performed by the predetermined terminal. You can also run it on your terminal.

A flow of processing executed by the image generating apparatus 1 according to the first embodiment and an example of a screen will be described with reference to FIGS. 5 to 11. FIG.
First, the image generation device 1 refers to the map information storage unit 1D and displays a map of a predetermined land for which a composite image is to be generated (S101).
FIG. 6 is an example of a screen displaying a map of a given piece of land. A section of predetermined land is displayed in the center by a section display frame G10 (indicated by a dashed line in this example), and roads and land around the predetermined land are also displayed.

The user arranges a floor plan image of a predetermined building on a predetermined land indicated on the map (S102).
FIG. 7 is an example of a screen in which a floor plan image G20 of a predetermined building is laid out on predetermined land. On the screen, a predetermined building floor plan image G20 is prepared as an object that can be operated by the user, and can be moved up, down, left, right, or rotated according to the user's operation. ing. Thereby, the user can grasp in which direction each living room or the like faces, or whether it faces the road, based on the floor plan.

Note that if the floor plan image G20 of the predetermined building is placed in a state where construction is impossible, such as the floor plan image G20 protruding from the predetermined land section (section display frame G10), an error message or the like is notified according to the user's operation. can be
Further, the floor plan image G20 of the predetermined building may be selected by the user from among a plurality of floor plan images presented in a list based on the information stored in the building information storage unit 1A. In this case, the floor plan image of the building presented to the user may be composed only of buildings that can be constructed on the predetermined land. Further, a search form may be provided so that the user can narrow down the desired floor plan according to cost and floor plan configuration.

When arranging the floor plan image G20, optional parts can be arranged as appropriate (S103).
The image generation device 1, for example, refers to the option parts storage unit 1E and presents the option parts to the user in a selectable manner. FIG. 11 shows a state in which the optional parts G21 are arranged. That is, the user can arrange the desired optional parts G21 at any position on the predetermined land in the same manner as the floor plan image G20, and thereby, for example, place the car in an empty space beside the building arranged as the floor plan image G20. You can place an object of the house or place a tree object between neighboring houses.

Also, as the option part G21, a retaining wall appropriately provided between the building and the land may be selected. That is, as will be described later with reference to FIG. 9, when a gap G41 is generated as a result of combining the land image and the building image by the combining processing unit 13, a retaining wall that fills the gap G41 is selected as the optional part G21. You may be able to do so.

When the layout of the floor plan is determined, the user designates a predetermined point as the GL reference point on the predetermined land (S104).
FIG. 8 is an example of a screen when the user designates a point to be the GL reference point on a predetermined piece of land. On this screen, a land image G30 of a predetermined land and the surrounding environment of the predetermined land are displayed three-dimensionally based on the data stored in the building information storage section 1A and the land information storage section 1B.

The user operates the cursor G31 for designating the GL reference point to designate an arbitrary position on the predetermined land as the point P that will be the GL reference point.
Regarding the operation of the cursor G31 by the user, the land information storage unit 1B is referred to for an arbitrary point on the land image G30 where the cursor G31 is placed by the user, and a numerical value indicating the height of the point is displayed. can be

When the user designates the point P as the GL reference point, the image generation device 1 generates a composite image by the composition processing unit 13 (S105).
FIG. 9 shows an example of a screen in which a composite image obtained by combining a land image G30 of a predetermined land with a building image G40 of a predetermined building is displayed.
In generating the composite image, a building image G40 of a predetermined building corresponding to the floor plan image G20 and a land image G30 of predetermined land corresponding to the division display frame G10 are obtained from the building information storage unit 1A and the land information storage unit 1B. extracted. Then, the vertical position of the extracted building image G40 is set using the point P specified by the user as the GL reference point. Also, the horizontal position and orientation of the building image G40 on the land image G30 are set according to the position and orientation of the floor plan image G20 arranged by the user.

In the example of FIG. 9, if a point P specified by the user is used as the GL reference point as a result of the undulations on the predetermined land, a gap G41 is generated between the foundation of the predetermined building and the land, and the foundation of the predetermined building It can be seen that there is an overlapped portion G42 in which is cut into the land. Note that the gap G41 and the overlapped portion G42 may be provided with an identification effect such as shadow, color, broken line, etc., which facilitates identification of the portion.

The editing processing unit 14 edits the gap G41 and the overlapping part G42 that have occurred in the composite image (S106).
FIG. 10 is an example of a composite image edited by the editing processing unit 14. As shown in FIG. On the edited image obtained by editing the composite image, a retaining wall G43 is provided in the gap G41 between the land image G30 and the building image G40, and the land in the overlapping portion G42 is excavated.
Note that the retaining wall G43 is extracted from the optional parts storage unit 1E, but it may be extracted and used by the editing processing unit 14, or may be selected by the user. It may be one that is selected when arranging the floor plan image G20.

Note that the editing processing by the editing processing unit 14 can be executed based on a subsequent instruction from the user after the synthesized image generated by the synthesis processing unit 13 is once output to the user. It can also run without outputting the image to the user. Selection of the retaining wall G43 as an optional part to fill the gap G41 and selection of whether to excavate the overlapping portion G42 may be accepted from the user once the composite image is output to the user. .

FIG. 12 shows another example of the edited image. The edited image shown in FIG. 12 is generated based on the two-dimensional image shown in FIG.
In this example, a retaining wall G43, which is taller than the retaining wall G43 described above, is arranged with respect to the building image, and a tree G44, which is a three-dimensional option part G21, is arranged. This reflects what the user has selectively arranged in the process of S103. Note that when the three-dimensional image of the optional part G21 such as the tree G44 is displayed as a three-dimensional image by the synthesis processing unit 13, the point P specified by the user is used as the GL reference point, and the three-dimensional image of the optional part G21 is used as the GL reference point. Sets the vertical position of the original image.

When the user sets the GL reference point in the process S104 described above, the GL reference point may be set at a position higher or lower than the point designated by the user by a predetermined height. . For example, it may be possible to set by inputting a specific numerical value, such as making the point 1 m higher than the specified point.

FIG. 13 shows the flow of processing executed by the image generation device 1 according to the second embodiment.
In this embodiment, the image generating apparatus 1 uses the determination processing unit 12 to determine whether or not there are architectural restrictions when a building is built using a point on the land specified by the user as the GL reference point.
In the description of FIG. 13, the same reference numerals are assigned to the same processes as those described in FIG. 5, and the description thereof will be omitted as appropriate.

In this embodiment, when the user designates a predetermined point as a GL reference point on a predetermined land (S104), determination processing is performed by the determination processing unit 12 (S201).
In the determination process, when a user-specified point is used as a GL reference point to construct a predetermined building on a predetermined land, whether or not construction is possible regardless of laws and physical restrictions, that is, whether or not restrictions on construction can be cleared. It is decided whether In this determination process, the determination processing unit 12 acquires the building and land information necessary for determination from the building information storage unit 1A and the land information storage unit 1B, and also acquires the determination information stored in the restriction information storage unit 1C. Contrast with information that serves as a basis for the content to be provided.

As a result, if the restriction in construction can be cleared, the process proceeds to the above-described S105 and subsequent steps. In this case, a message to the effect that the restriction can be cleared may be presented to the user.

On the other hand, as a result of the determination, if the architectural restrictions cannot be cleared, the user is requested to re-specify the GL reference point (S202).
As a result, when the specification of the GL reference point is accepted again from the user, the determination processing by the determination processing unit 12 is executed again.

In this example, the determination by the determination processing unit 12 may be performed for all the items stored in the restriction information storage unit 1C, some of them, or items arbitrarily specified by the user. may be performed for

In addition, regardless of the result of the determination processing by the determination processing unit 12, it is also possible to proceed to the generation of the composite image (S105) and further to the processing of editing the composite image (S106). In this case, on the output screen of the composite image or the edited image, a message indicating that the architectural restrictions have not been cleared may be notified. Also, if there are a plurality of items for which determination processing is to be performed, it is preferable to make it clear which item is to be restricted.

Further, regarding the execution timing of the determination processing by the determination processing unit 12, after executing the generation of the synthetic image (S105) or after executing the editing of the synthetic image (S106), it is executed automatically or according to the user's instruction. It may be

According to the image generating apparatus 1 according to the present embodiment described above, it is possible to set a ground line in generating an image of a building built on land, and as a result, it is possible to generate an accurate image.

●Other Modifications The image generating apparatus 1 according to the present embodiment described above can be configured as the following modifications, for example.

<Presentation of selectable points>
As an example, when the user designates a point to be the GL reference point on the land image, the point may be presented to the user in a selectable manner.
FIG. 14 shows an example of a screen when presenting selectable points to be set as GL reference points. In this example, the user can select points P1-P5, numbered 1-5, as GL reference points. Each point given as an option here is configured to be a point that is not subject to architectural restrictions even if a building is constructed using that point as the GL reference point as a result of the processing by the determination processing unit 12 that has been executed in advance. can be

<Recommendation of points>
In another example, when the user designates a point to be the GL reference point on the land image, a suitable point may be recommended.
FIG. 15 shows an example of a screen for recommending such points. On the screen, a point P6 indicated by an asterisk is shown on the land image G30 to be recommended to the user as a GL reference point.

Here, the criteria for recommendation are, for example, evaluation based on the cost of land preparation and excavation, and evaluation based on the line of sight or the line of sight from the neighbor's house. Since the points to be recommended may change depending on the content of the evaluation, the specification of the type of evaluation that the user places importance on may be accepted, and the points to be recommended according to the specified type of evaluation may be presented to the user. Further, the evaluation on the predetermined land may be registered in advance in the land information storage unit 1B as information for each point, or may be calculated according to a predetermined algorithm according to the selection of the land by the user. It may be For example, when a predetermined point is set as the GL reference point, the amount of work such as necessary land preparation, excavation, generation of surplus soil, etc. is calculated, and the cost can be calculated by multiplying the amount by the unit price.

Further, in the point recommendation, a proposal may be received from a contractor who specializes in land development, excavation, or other construction work, and may be presented to the user. That is, information on a predetermined building and predetermined land is provided as data to a terminal used by such a trader, and information related to a point recommendation as a result of examination based on the data is received from the trader terminal, This is presented to the user. At this time, not only recommendations of points but also information such as proposals and estimates of construction details, delivery dates, construction periods, construction start schedules, and completion schedules may be received from the contractor terminal and presented to the user.

<Confirmation of line of sight from the building and neighbors>
In a composite image obtained by synthesizing a building image with a land image using a predetermined point on a predetermined land as a GL reference point, the state of the surroundings including a neighboring house, etc., viewed from a window of a predetermined building, or the state of a predetermined building viewed from a neighboring house, etc. etc. can be grasped.
Specifically, information relating to the layout of windows for a given building is stored, and when a building is constructed on a given piece of land, a virtual viewpoint is set as a standing point from which a line of sight is directed to the building. By doing so, it is possible to grasp the direction and angle of the line of sight that is assumed to reach the building.
The direction and angle of the line of sight and the distance from the viewpoint to the window may be evaluated numerically, and the evaluation may be presented to the user.

If the result of processing by the image generating apparatus 1 as described above can be output on a website, such a website can realize a platform in which various players involved in real estate participate. In addition, on such platform sites, it is possible to accumulate various data such as information on the actual supply and demand of real estate, utilization methods based on specialized knowledge, etc. The accumulated data is also useful in terms of data science. be. In other words, through compound data analysis based on accumulated data, it is possible to find new or difficult-to-notice ways to utilize real estate, and it is also beneficial not only to players involved in specific real estate but also to society as a whole. An approach that draws out knowledge can also be expected.

1: Image generation device 1A: Building information storage unit 1B: Land information storage unit 1C: Restriction information storage unit 1D: Map information storage unit 1E: Option parts storage unit 11: Extraction processing unit 12: Judgment processing unit 13: Synthesis processing unit 14: Edit processing unit 15: Input/output unit G20: Floor plan image G30: Land image G40: Building image G41: Gap G42: Overlapping part P: Point

Claims (11)

building information storage means for storing a building image related to a three-dimensional image of a predetermined building;
land information storage means for storing a land image related to a three-dimensional image of a predetermined land;
receiving means for receiving designation of a predetermined point as a GL reference point that serves as a reference for a ground line on the predetermined land;
synthesis processing means for synthesizing the building image with the land image to generate a synthesized image;
The synthesis processing means is
Synthesizing the building image with the land image using the vertical coordinate of the designated point as a ground line;
Image production device.
output means for outputting, as an edited image, the synthesized image in which gaps and/or overlaps occurring between the land image and the building image are edited in the synthesized image;
2. The image generation device of claim 1.
Editing means for editing gaps and/or overlapping portions between the land image and the building image in the composite image,
3. The image generation device according to claim 2.
Determining means for determining whether or not architectural restrictions can be cleared when the building is built on the land with the vertical coordinates of the designated point as the ground line,
4. The image generation device according to any one of claims 1 to 3.
The determination means determines whether or not a height limit specific to the land can be cleared when the building is built on the land with the vertical coordinates of the designated point as the ground line,
The building information storage means stores information relating to the height of the building,
The land information storage means stores information relating to height restrictions specific to the land.
5. The image generation device according to claim 4.
The judging means judges whether or not the shadow limit for the surroundings can be cleared when the building is built on the land with the vertical coordinate of the designated point as the ground line,
In the land information storage means, information relating to the shade limitation for the surroundings of the land is stored.
6. The image generation device according to claim 4 or 5.
the land image includes an image of the land surroundings;
7. The image generation device according to any one of claims 1 to 6.
The synthesis processing means is
synthesizing the building image with the land image on the basis of a value obtained by adding or subtracting a predetermined value to the vertical coordinate of the designated point;
8. The image generation device according to any one of claims 1 to 7.
further comprising recommendation means for displaying a point to be recommended as the predetermined point in the land image;
9. The image generation device according to any one of claims 1 to 8.
building information storage means for storing a building image related to a three-dimensional image of a predetermined building;
A computer having land information storage means for storing a land image related to a three-dimensional image of a predetermined land,
a receiving process for receiving designation of a predetermined point as a GL reference point that serves as a reference for a ground line on the predetermined land;
a synthesizing process of synthesizing the building image with the land image to generate a synthetic image;
The synthesis process includes
Synthesizing the building image with the land image using the vertical coordinate of the designated point as a ground line;
Image generation method.
building information storage means for storing a building image related to a three-dimensional image of a predetermined building;
a land information storage means for storing a land image related to a three-dimensional image of a predetermined land;
a receiving process for receiving designation of a predetermined point as a GL reference point that serves as a reference for a ground line on the predetermined land;
synthesizing the land image with the building image to generate a synthetic image;
The synthesis process includes
Synthesizing the building image with the land image using the vertical coordinate of the designated point as a ground line;
computer program.

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