JP2023174766A - Real estate information processing device, real estate information search device, method, and computer program - Google Patents

Abstract

To efficiently search for a building suitable to be built on a predetermined land or a land suitable for building a predetermined building on the basis of a concrete image when building a building on the land, considering a line of sight that reaches the inside of the building from the outside of the building.SOLUTION: A real estate information search device 1 includes: a land information storage unit 1A that stores information on predetermined land; a surrounding environment information storage unit 1B that stores information related to a surrounding environment of the predetermined land; a building information storage unit 1C that stores at least window information related to a layout of windows in a building as information on the building to be built on the land; and a search processing unit 11 that searches for candidate buildings to be built on the predetermined land. The search processing unit 11 includes: a viewpoint setting function unit 111 that sets a virtual viewpoint from which a line of sight is cast on the building when the building is built on the predetermined land; and a first determination function unit 112 that determines suitability of building construction by comparison with a predetermined threshold value, based on a direction and an angle of the line of sight that reaches the inside of the building from the virtual viewpoint through the windows of the building when the building is built on the predetermined land.SELECTED DRAWING: Figure 1

Description

The present invention relates to a technique for searching for a building that can be constructed on a predetermined piece of land or a piece of land that can be used to construct a predetermined building.

In recent years, the construction industry has faced negative factors such as the consumption tax hike and soaring material costs due to the weak yen, but sales of single-family homes and land for residential use have declined due to various subsidies and record-low mortgage interest rates. However, it is being supported.

Generally, when a housing builder sells a house to a customer, the customer specifies a desired floor plan from among the floor plans proposed by the housing builder and searches for land on which a building with the specified floor plan can be built. is common. However, since each land has its own building conditions, such as building coverage ratio and floor area ratio, it is difficult for customers who are not accustomed to such things to find land on which a building with a specified floor plan can be built. On the other hand, even when a housing builder searches for land, it is time-consuming to do so while understanding the customer's detailed wishes, such as the surrounding environment of the land.

Furthermore, when purchasing a building or land, an image of the architecture of the building after purchase is assumed in advance, but it is difficult for an inexperienced individual purchaser to accurately recognize the actual image. In particular, after a building is constructed, it is difficult to visualize the line of sight and sunlight that will reach inside the building from outside the building, and it is often difficult to imagine how much sunlight will reach inside the building, and it is often difficult to imagine this until you actually live in the building.
Therefore, when purchasing a building or land, if the buyer can accurately recognize the image of the building being constructed on the land, the purchaser can conclude a purchase contract for real estate such as a building or land with peace of mind. Furthermore, if it is possible to search for real estate that can be comfortably lived in, taking into account the view from outside the building, which is difficult to imagine, such a search system will be highly convenient for those looking for real estate.

Japanese Patent Application Publication No. 2007-316819 Japanese Patent Application Publication No. 2001-325321 Japanese Patent Application Publication No. 2003-216976 Japanese Patent Application Publication No. 2018-092503

The above patent document proposes a system that determines whether a building with a predetermined floor plan can be built on a predetermined piece of land based on information such as the floor area ratio and building coverage ratio of the house, and evaluates the building based on sunlight, etc. has been done.
However, based on the specific image of when a building is constructed on the land, and considering the line of sight from outside the building to the inside of the building, it is necessary to decide which building is best to build on the specified land, or to build the specified building. There is no provision for efficiently searching for suitable land.

Therefore, the present invention takes into account the line of sight reaching into the building from outside the building, based on a specific image of when a building is constructed on the land, and identifies buildings that are suitable to be constructed on a given land, or It is an object of the present invention to provide a device that efficiently searches for land suitable for constructing a building.

In order to achieve the above object, a real estate information retrieval device according to one aspect of the present invention is a device that proposes buildings that can be constructed on a predetermined land, and includes a land information storage that stores information regarding the predetermined land. means, a surrounding environment information storage means that stores information regarding the surrounding environment of the predetermined land, and a building information storage means that stores at least window information regarding the layout of windows in the building as information about a building to be constructed on the land. and search processing means for searching for a building that is a candidate for construction on the predetermined land, the search processing means for searching for a building on the predetermined land by referring to the surrounding environment information storage means. a viewpoint setting function unit that sets a virtual viewpoint as a standing point from which to direct the line of sight toward the building when the building is constructed; and a viewpoint setting function unit that sets a virtual viewpoint as a standing point from which to direct the line of sight toward the building; and a first determination function unit that determines whether or not the construction of the building is appropriate by comparing it with a predetermined threshold value based on the direction and angle of the line of sight that reaches the inside of the building from the viewpoint through the window of the building.

Further, the building information storage means stores change permission information relating to a changeable range with respect to the layout of the windows of the building, and the first determination function unit constituting the search processing means With reference to this, it may be determined whether or not the architecture of the building is suitable within the range of layouts that can be changed for the windows.

Further, the building information storage means stores information related to the layout of the building that can be adjusted according to the conditions of the land when the building is constructed on the land, and the search processing means further stores information related to the layout of the building that can be adjusted according to the conditions of the land when the building is constructed on the land. Referring to the above, the second determination function unit may be included as a component for determining whether or not a building can be constructed within a range of adjustable layout of buildings according to the conditions of the predetermined land.

Moreover, it may further include order setting means for setting a recommendation order for the search results of the buildings according to the amount of line of sight that reaches the inside of the buildings.

Moreover, it may further include a composition processing means for generating a composite image by combining the three-dimensional image of the building with the three-dimensional image of the surrounding environment of the predetermined land.

Moreover, it may further include a generation processing means for generating a three-dimensional image of the surrounding environment of the predetermined land from a captured image of the surrounding environment of the predetermined land.

In addition, based on the composite image, when the building is constructed on a predetermined land, the direction and angle of the line of sight reaching into the building through the windows of the building from a virtual standing point outside the building can be determined. It may further include a specific processing means for specifying.

Further, the viewpoint setting function unit further identifies a predetermined object included in the three-dimensional image of the surrounding environment of the predetermined land, and sends a line of sight toward the building to a position where the predetermined object is present. A virtual viewpoint may be set as a standing point.

The composite image may further include first display processing means for displaying an image with a predetermined standing point as a virtual viewpoint.

The composite image may further include a second display processing means for displaying an image of sunlight entering the building through the window.

Further, a real estate information retrieval method according to another aspect of the present invention is a method of proposing buildings that can be constructed on a predetermined land, the method comprising: land information storage means storing information regarding the predetermined land; A computer comprising: surrounding environment information storage means that stores information about the surrounding environment of the land; and building information storage means that stores at least window information about the layout of windows in the building as information about a building to be constructed on the land. executes a search process for searching for a building that is a candidate to be constructed on the predetermined land, and the search process refers to the surrounding environment information storage means to construct a building on the predetermined land. a viewpoint setting process that sets a virtual viewpoint as a standing point that directs the line of sight toward the building; and when a building is constructed on the predetermined land, from the viewpoint as a virtual standing point outside the building, It is comprised of a determination process that determines whether or not the construction of the building is appropriate by comparing it with a predetermined threshold value based on the direction and angle of the line of sight that reaches the inside of the building through the building's windows.

Further, a computer program according to another aspect of the present invention is a computer program for proposing a building that can be constructed on a predetermined piece of land, the computer program comprising: land information storage means storing information regarding the predetermined piece of land; A surrounding environment information storage means that stores information about the surrounding environment of a predetermined land, and a building information storage means that stores at least window information about the layout of windows in the building as information about a building to be constructed on the land. A computer is caused to execute a search process for searching for a building that is a candidate for construction on the predetermined land, and the search process refers to the surrounding environment information storage means to construct a building on the predetermined land. A viewpoint setting process that sets a virtual viewpoint as a standing point to direct the line of sight toward the building when , a determination process that determines whether or not the construction of the building is appropriate by comparing it with a predetermined threshold based on the direction and angle of the line of sight that reaches the inside of the building through the building's windows.

Further, a real estate information retrieval device according to another aspect of the present invention is a device that proposes land on which a predetermined building can be constructed, and includes a land information storage means that stores information regarding the land, and a surrounding environment of the land. surrounding environment information storage means storing information relating to the building; building information storage means storing at least window information relating to the layout of windows in the building as information on the predetermined building; and land on which the predetermined building can be constructed. a search processing means for searching, and the search processing means refers to the surrounding environment information storage means to determine a position from which to direct the line of sight toward the building when the predetermined building is constructed on the land. a viewpoint setting function unit that sets a virtual viewpoint of the building, and when the predetermined building is constructed on land, reaching into the building through the window of the building from a viewpoint as a virtual standing point outside the building; It is comprised of a determination function unit that determines whether construction is possible or not by comparing it with a predetermined threshold value based on the direction and angle of the line of sight.

Further, a real estate information retrieval method according to another aspect of the present invention is a method of proposing a land on which a predetermined building can be constructed, comprising: land information storage means storing information regarding the land; and a surrounding environment of the land. A computer having a surrounding environment information storage means that stores information regarding the predetermined building, and a building information storage means that stores at least window information regarding the layout of windows in the building as information about the predetermined building. A search process for searching land that can be built is executed, and the search process refers to the surrounding environment information storage means, and when the predetermined building is built on the land, directs a line of sight toward the building. A viewpoint setting process that sets a virtual viewpoint as a standing point, and when the predetermined building is constructed on land, a viewpoint setting process that sets a virtual viewpoint as a standing point, and when the predetermined building is constructed on land, from the viewpoint as a virtual standing point outside the building, it is possible to enter the building through the window of the building. It is comprised of a determination process that determines whether construction is possible or not by comparing it with a predetermined threshold value based on the direction and angle of the line of sight.

Further, a computer program according to another aspect of the present invention is a computer program for proposing a land on which a predetermined building can be constructed, the computer program comprising land information storage means storing information regarding the land, and surrounding areas of the land. The predetermined method is applied to a computer having a surrounding environment information storage device that stores information related to the environment, and a building information storage device that stores at least window information related to the layout of windows in the building as information about the predetermined building. A search process for searching land on which a building can be constructed is executed, and the search process refers to the surrounding environment information storage means to determine the line of sight to the building when the predetermined building is built on the land. A viewpoint setting process that sets a virtual viewpoint as a standing point for transmitting information, and when the predetermined building is constructed on land, the building is viewed from the viewpoint as a virtual standing point outside the building through the window of the building. It is comprised of a determination process that determines whether construction is possible or not by comparing it with a predetermined threshold value based on the direction and angle of the line of sight that reaches the inside.

According to the present invention, a building that can be realistically constructed on a predetermined land is searched for, taking into account the north, south, east, west, and direction of the building and the direction in which the road should face, and the building information as the search result is searched for. can be proposed all at once.
In addition, we search for land on which the building can be realistically built, taking into account the north, south, east, west, and direction of the building and the direction the road should face, and then collectively propose land information as a result of the search. can do.
Furthermore, in either case, a concrete image of the building constructed on the land can be displayed in an easy-to-understand manner.

FIG. 2 is a functional block diagram showing functions provided in the real estate information search device according to the first embodiment of the present invention. FIG. 2 is a diagram showing an example of data stored in a land information storage unit in the real estate information search device according to the present embodiment. FIG. 3 is a diagram showing an example of data stored in a building information storage unit in the real estate information search device according to the present embodiment. FIG. 2 is a schematic diagram illustrating the concept of a set direction and a land direction in the real estate information search device according to the present embodiment. FIG. 2 is a schematic diagram illustrating the concept of a road direction and a road access direction in the real estate information search device according to the present embodiment. FIG. 2 is a schematic diagram schematically showing the concept of processing for determining whether a building shape and a land shape match in the real estate information search device according to the present embodiment. FIG. 2 is a schematic diagram schematically showing the concept of processing for determining whether a building shape and a land shape match in the real estate information search device according to the present embodiment. FIG. 2 is a schematic diagram schematically showing the concept of processing for determining whether a building shape and a land shape match in the real estate information search device according to the present embodiment. FIG. 2 is a schematic diagram schematically showing the concept of processing for determining whether a building shape and a land shape match in the real estate information search device according to the present embodiment. FIG. 2 is a schematic diagram illustrating a three-dimensional image of the surrounding environment around a predetermined piece of land in the real estate information search device according to the present embodiment. FIG. 2 is a schematic diagram illustrating a state in which a three-dimensional image of a building is synthesized with a three-dimensional image of the surrounding environment around a predetermined piece of land in the real estate information search device according to the present embodiment. FIG. 2 is a schematic diagram illustrating a state in which a three-dimensional image of a building is synthesized with a three-dimensional image of the surrounding environment around a predetermined piece of land in the real estate information search device according to the present embodiment. It is a processing flow diagram showing the overall flow of processing by the real estate information search device according to the present embodiment. It is a processing flow diagram showing the flow of search processing by a second discrimination function unit among the processing by the real estate information search device according to the present embodiment. It is a processing flow diagram showing the flow of search processing by a first discrimination function unit among the processing by the real estate information search device according to the present embodiment. FIG. 3 is a diagram showing an example of a screen displayed on a terminal when a searcher specifies land in the real estate information search device according to the present embodiment. FIG. 3 is a diagram showing an example of a screen showing search results in the real estate information search device according to the present embodiment. FIG. 3 is a diagram showing an example of a screen showing search results in the real estate information search device according to the present embodiment. FIG. 7 is a processing flow diagram showing the overall flow of processing by the real estate information search device according to the second embodiment of the present invention. It is a processing flow diagram showing the flow of search processing by a second discrimination function unit among the processing by the real estate information search device according to the present embodiment. It is a processing flow diagram showing the flow of search processing by a first discrimination function unit among the processing by the real estate information search device according to the present embodiment.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A real estate information search device according to an embodiment of the present invention will be described below with reference to the drawings.
The real estate information search device according to the present embodiment is a device for searching for a building to be constructed on a predetermined piece of land or a piece of land for constructing a predetermined building. Specifically, it is used by house builders who sell buildings, especially custom-built houses, and real estate businesses who sell land, to propose buildings and land to customers, and when people are considering purchasing real estate. It is envisaged that individuals will use the system to search for real estate that meets their wishes.

●Functional configuration The real estate information search device 1 according to the first embodiment shown in FIG. 1 searches for a suitable building that can be constructed on a predetermined piece of land.
The real estate information search device 1 is realized by a so-called server computer, etc., and includes hardware resources such as a CPU (Central Processing Unit), RAM (Random Access Memory), ROM (Read Only Memory), hard disk drive, computer programs executed by the CPU, etc. The software resources include a land information storage section 1A, a surrounding environment information storage section 1B, a building information storage section 1C, a search processing section 11, a generation processing section 12, a composition processing section 13, a specific processing section 14, an order setting section 15, and It constitutes a functional block consisting of the display processing section 16.

・Land information storage unit 1A
The land information storage unit 1A is a storage unit that stores land information regarding land on which a building can be constructed, such as land owned by a customer or land sold to the customer by a real estate agent.
For example, as shown in FIG. 2, the land information storage unit 1A stores at least basic information and information related to land conditions in association with each land ID that can individually identify a parcel of land.

The basic information is information about the land itself, and includes information such as the address and price of the land. In addition, neighborhood information such as the distance from the nearest station to the predetermined land and whether there is a supermarket or the like nearby may also be included.
Land conditions are information required when constructing a building on land, and are comprised of, for example, building coverage ratio, floor area ratio, site area, land shape, land direction, road access direction, and the like. These land conditions include information that can be used to determine whether or not the construction of a building on the land is subject to physical or legal restrictions or regulations.

The land shape is information related to the shape of the land, and with this information, it is possible to understand what shape of building can fit within the site.
The land direction is information related to the direction of the land, and with this information, it is possible to grasp which part of the land shape is facing in which direction, north, south, east, or west.
The road direction is information about the direction of the road that the land faces.

- Surrounding environment information storage section 1B
The surrounding environment information storage unit 1B is a storage unit that stores information related to the surrounding environment of the land.
The surrounding environment information storage unit 1B includes information such as buildings and adjacent roads around a predetermined piece of land, and stores a three-dimensional image of the surrounding area centered on the predetermined piece of land. .
The three-dimensional image of the surrounding area centered on a predetermined piece of land may be registered in advance in the surrounding environment information storage unit 1B, or may be generated from captured images of the area around the predetermined piece of land by a generation processing unit 12, which will be described later. It may also be one that has been registered.

Note that the surrounding environment information may include a two-dimensional or three-dimensional map around the land. A three-dimensional map is a map in which each piece of land or building that makes up the map has a three-dimensional image, and it is a map that allows you to observe a given place three-dimensionally. A map originally observed. A map that is a three-dimensional view of a predetermined place from a predetermined angle is, for example, a map by STREET VIEW (registered trademark) provided by Google Inc., which is a photograph taken by an observer of the land from a road, etc. Alternatively, it is composed of an image or the like.

・Building information storage unit 1C
The building information storage unit 1C is a storage unit that stores building information regarding buildings.
For example, as shown in FIG. 3, the building information storage unit 1C stores basic building information, building conditions, a three-dimensional image of the building, and window information for each building ID that can individually identify the building. remembered.

The basic information is information about the building itself, and includes information such as the manufacturer, price, and floor plan of the building.
Building conditions are information required when constructing a building on land, and are composed of building area, total floor area, external shape, setting direction, setting direction tolerance, road direction, road direction tolerance, etc. be done. The building conditions include information that can be used to determine whether or not the construction of a building on the land is subject to physical or legal restrictions or regulations.

The set direction is information related to the north, south, east, west, and east directions set for the building, and is set in advance based on the direction from the center of the building's floor plan. This setting direction is actually determined by the position of the water area, the direction of the windows in the living room, etc.
The setting direction tolerance is information regarding the angle at which tilting or shifting is permissible in the north, south, east, west, and east directions set for the building. In other words, as shown in Figure 4, the set direction tolerance is the angle at which it is permissible to tilt the set direction (north, east, west, south, and south) set for each building with respect to the land direction (north, south, east, west, and east) of the land. ).
When constructing a predetermined building on land, the north, south, east, west, and east directions set on the building do not need to strictly match the actual north, south, east, west, and deviations within a predetermined allowable angle range are allowed.

The road direction is information related to the direction in which a building should face the road, and is set in advance based on the direction from the center of the building's floor plan. This road direction is actually determined by the location of the entrance, etc.
The road direction tolerance is information regarding the angle at which it is permissible to shift the direction of the road set for the building. That is, as shown in FIG. 5, the road direction tolerance is an angle (permissible angle) at which the road direction set for each building is allowed to be tilted with respect to the road direction on the land.

By comparing these building conditions with the land conditions of the land, it is possible to understand whether or not physical or legal restrictions can be met when constructing a given building on a given piece of land.

A three-dimensional image is data showing the three-dimensional shape of a building. By combining this three-dimensional image of the building with a three-dimensional image representing the surrounding environment of the predetermined land, a three-dimensional image of the predetermined land and the buildings built there is generated.
Further, the three-dimensional image includes not only the exterior of the building but also the interior of the building, and by referring to the three-dimensional image of the interior, it is possible to understand the interior floor plan of the building in three dimensions.

The window information is information related to the windows of a building, and includes information related to the window layout and change permission information.
Layout is information that allows you to understand where and what size windows are provided in a building. By understanding the layout of windows, you can determine where lines of sight from outside the building enter the building.
Note that the layout may include information such as the standard or manufacturer of windows installed in the building.

The change permission information is information regarding the changeable range of the window layout. That is, it is information related to the position and size of windows that are provided by default in a building, which can be changed, or the standard of windows that can be replaced. By referring to this change permission information, you can see how the default windows in a building can be changed, and how changing them will change the line of sight from outside the building into the building. It is possible to understand what is happening.

・Search processing unit 11
The search processing unit 11 executes a process of searching for a building that is a candidate to be constructed on a predetermined piece of land.
This search processing unit 11 is composed of a viewpoint setting function unit 111, a first discrimination function unit 112, and a second discrimination function unit 113, and searches buildings in response to a search request from a searcher or a search request from a predetermined system. do.

The viewpoint setting function section 111 refers to the surrounding environment information storage section 1B and sets a virtual viewpoint as a standing point from which to look toward the building when a building is constructed on a predetermined piece of land. More specifically, a predetermined object included in a three-dimensional image of the surrounding environment of a predetermined land is identified, and a virtual viewpoint is set at the position of the predetermined object. Furthermore, a virtual viewpoint is set at a predetermined location in a three-dimensional image of the surrounding environment of a predetermined land.

Predetermined objects include, for example, windows and balconies of buildings built around a predetermined piece of land, external stairs and passageways in condominiums, etc., where people may be present, and where it is reasonably possible to have a viewpoint. Refers to things and places that can be considered. The predetermined object is identified, for example, from a three-dimensional image or from a flattened three-dimensional image based on a reference image held in advance.
Further, the predetermined location is, for example, a location on a road around a predetermined piece of land that is at a certain height from the ground, that is, a location that corresponds to the height of a person's line of sight.
By setting a virtual viewpoint on a predetermined object or a predetermined location that can reasonably be assumed to have a human viewpoint, it is assumed that when a building is constructed on a predetermined piece of land, it will reach inside the building. You can grasp the direction and angle of the line of sight.

When a building is constructed on a predetermined piece of land, the first determination function unit 112 determines a predetermined direction and angle of the line of sight reaching into the building through the windows of the building from a virtual standing point outside the building. The suitability of the building's construction is determined by comparing it with the threshold value.
That is, the specific processing unit 14, which will be described later, uses the building window from the virtual viewpoint set by the viewpoint setting function unit 111 based on the layout information of the window of the building stored in the building information storage unit 1C. How the line of sight travels into the building is determined. Based on this line-of-sight information, the first determination function unit 112 compares the direction and angle of the line of sight reaching into the building through the window with a predetermined threshold. For example, the threshold value may disallow the line of sight from entering the building from directly in front of the window to an angle that is tilted at a certain angle, or allow the line of sight to enter from vertically downward while allowing the line of sight to enter the building from vertically downward. , the angle of line of sight entering from the vertical direction information is set to be prohibited. If the architecture of the building is acceptable in comparison with such a threshold value, the architecture of the building is determined to be appropriate.
Note that a predetermined threshold can be set not only for the direction and angle of the line of sight but also for the distance from the viewpoint to the window, and may be set to allow viewpoints that are farther than a certain distance.

Further, the first determination function unit 112 refers to the building information storage unit 1C and determines whether or not the construction of the building is appropriate within the range of layouts that can be changed regarding windows.
That is, the specific processing unit 14, which will be described later, determines how the angle and direction of the line of sight reaching the building from a virtual viewpoint will change when the default window positions and sizes of the building are changed within the changeable range. can be identified. Even if the default window position and size of the building does not allow the line of sight in comparison with the predetermined threshold, based on the information regarding the angle and direction of the line of sight after the change, If the angle or orientation is acceptable, the first determination function unit 112 determines that the architecture of the building is appropriate.

The second determination function unit 113 determines whether the building stored in the building information storage unit 1C has basic information that matches the search conditions arbitrarily specified by the searcher or a predetermined system. It is determined whether a predetermined land specified by a predetermined system has building conditions that match the land conditions.

When searching for a building that matches the land conditions of a predetermined piece of land, the second discrimination function unit 113 searches for a building stored in the building information storage unit 1C based on the external shape of the building and the land shape of the predetermined piece of land. After matching the land direction of the predetermined land with the set direction set for the building, it is determined whether or not it fits within the predetermined land. Furthermore, when determining whether or not a building will fit on a predetermined piece of land, it can be determined whether or not the building will fit within a predetermined orientation of the building tilted within an allowable angle range.

This process will be explained with reference to FIGS. 6 and 7. In this example, first, as shown in FIG. 6(a) or FIG. 7(a), for the land shape of a predetermined land, the external shape of the building stored in the building information storage unit 1C is set in advance to the building. The set direction and the land direction of the land are matched and applied. At this time, if the external shape of the building fits within the land shape with the land direction of the land and the set direction of the building matching, the building is treated as satisfying the search condition in the process.

On the other hand, if the external shape of the building does not fit within the land shape when the land direction of the land and the building direction are matched, then the shape shown in FIG. 6(b) or FIG. 7(b) will be added. With the set direction tilted within the allowable angle range, it is determined whether the external shape of the building fits within the land shape. As a result, if the external shape of the building fits within the land shape as shown in FIG. 7(b), the building is treated as satisfying the search conditions in this process. On the other hand, as shown in FIG. 6(b), if the external shape of the building still does not fit within the land shape, the building is treated as not meeting the search conditions.

The second determination function unit 113 also determines whether or not the building stored in the building information storage unit 1C fits within the predetermined land, with the road direction of the building matching the road direction of the predetermined land. to judge. When determining whether the building will fit on the predetermined land, it is also possible to determine whether the building can be tilted in the direction of the road within an allowable angle range.

This process will be explained with reference to FIGS. 8 and 9. In this example, first, as shown in FIG. 8(a) or FIG. 9(a), for the land shape of a predetermined land, the external shape of the building stored in the building information storage unit 1C is set in advance to the building. The set road direction and the road direction of a predetermined land are matched and applied. At this time, if the external shape of the building fits within the land shape with the road direction of the predetermined land matched with the road direction of the building, the building is deemed to satisfy the search conditions in this process. be treated.

On the other hand, if the external shape of the building does not fit within the land shape while matching the direction of the road to the land and the road direction of the building, the shape shown in FIG. 8(b) or FIG. 9(b) will be further changed. With the building tilted in the direction of the road within the permissible angle range, it is determined whether the external shape of the building fits within the land shape. As a result, if the external shape of the building fits within the land shape as shown in FIG. 9(b), the building is treated as satisfying the search conditions in this process. On the other hand, as shown in FIG. 8(b), if the exterior shape of the building still does not fit within the land shape, the building is treated as not satisfying the search conditions.

・Generation processing unit 12
The generation processing unit 12 generates a three-dimensional image of the surrounding environment of a predetermined land from a photographed image of the surrounding environment of the predetermined land.
The method of generating a three-dimensional image by the generation processing unit 12 is not particularly limited, but for example, a drone equipped with an omnidirectional photographic camera may be flown to take photographs at a certain height in or around a predetermined land. , a three-dimensional image can be generated by combining the captured images. Furthermore, a three-dimensional image can also be generated by combining two-dimensional images taken from multiple points according to information about the coordinates of the points where the images were taken and information about the shooting direction. .

・Synthesis processing unit 13
The synthesis processing unit 13 performs a process of synthesizing a three-dimensional image of a building with a three-dimensional image of the surrounding environment of a predetermined land to generate a three-dimensional composite image in which the predetermined land and building are integrally represented. Execute.
A specific example of this process is shown in FIGS. 10 and 11. FIG. 10 shows a three-dimensional image of a predetermined land and its surrounding environment. In addition, in the figure, the part represented as vacant land is the "predetermined land".
Here, the synthesis processing section 13 refers to the building information storage section 1C and synthesizes the three-dimensional image of the building with the photographed image or image of the predetermined land. FIG. 11 shows a three-dimensional image generated in this way, in which buildings are three-dimensionally superimposed on a predetermined piece of land.

Note that the three-dimensional image is generated in such a state that the road direction of the land matches the land direction, and the road direction of the building matches the set direction. By changing the road direction or setting direction of the building within the permissible angle range, if the building fits on the land, the angle of the building relative to the land will be changed within the permissible angle range, and the building will be placed on the land. A three-dimensional image containing the building is generated.

Furthermore, this three-dimensional image may be viewable from various angles based on the user's operations on the user terminal 2. In this case, the screen output on the user terminal 2 is specifically realized by Ajax or the like.
Additionally, in this three-dimensional image, as shown in Figure 12, optional parts such as cars (in addition to cars, things attached to buildings such as plants and fences) can be freely selected and placed. It may be possible to do so.

・Specific processing unit 14
Based on the composite image generated by the composite processing unit 13, when a building is constructed on a predetermined land, the specific processing unit 14 identifies the building from a virtual standing point outside the building through the windows of the building. Identify the direction and angle of the line of sight reaching inside. For example, by connecting a virtual viewpoint and the outer edge of a window with a certain area with a straight line, find the angle that the straight line forms with the window, or with the virtual straight line that is perpendicular to the window. This specifies the direction and angle of the line of sight.
In addition, the specific processing unit 14 determines how the direction and angle of the line of sight reaching the building from a virtual viewpoint will change when the default window positions and sizes of the building are changed within the changeable range. It can also be specified.

Furthermore, the identification processing unit 14 can set the origin of sunlight entering the building through the window at a predetermined position, and specify the direction and angle of the sunlight entering the building from the predetermined position. can. By identifying the direction and angle of sunlight, it is possible to understand what kind of sunlight is coming into the building through the windows.
Note that the position of the starting point of sunlight can be set according to information such as the season, time of day, and the location of a predetermined piece of land.

・Order setting section 15
The order setting unit 15 can set the recommendation order of buildings for each predetermined item or based on a qualitative evaluation that comprehensively takes into account the predetermined items for the search results for buildings on a predetermined piece of land.
For example, based on the direction and angle of the line of sight that reaches the inside of the building through the window from the virtual viewpoint specified by the identification processing unit 14, the range inside the building that is visible from outside the building is quantified as the amount of line of sight. The recommendation order according to the amount of gaze can be reflected in the search results. In addition, the search results also show the recommendation order based on, for example, the amount of change when changing the position or size of a window within the allowable range, or the amount of change when changing the direction of a building relative to a given land within an allowable range. It can also be reflected in

・Display processing unit 16
The display processing unit 16 can generate an image with a predetermined point as a virtual viewpoint in a three-dimensional composite image, and display this on a predetermined display device such as a display. The virtual viewpoint is arbitrarily set, for example, by a searcher, a user of the real estate information search device 1, or the like. By referring to the image from the virtual viewpoint set arbitrarily by the user, if a building is constructed on a predetermined piece of land, where and how the line of sight will enter the building, or how the line of sight will enter the building. You can intuitively understand what the building looks like from outside the building.

Furthermore, the display processing unit 16 can also display an image of sunlight entering the building through the window in the three-dimensional composite image. The angle and direction of sunlight can be specified by the identification processing unit 14, and based on the specified angle and direction of sunlight and the window information of the building, the range within which sunlight can reach inside the building is reflected on the composite image. It can also be displayed.

In addition, in the real estate information search device 1 that constitutes the functional unit described above, a predetermined terminal configured to be able to communicate via a network such as the Internet is provided, and the functions provided in the real estate information search device 1 are performed by the predetermined terminal. You can also get the execution results. Such a predetermined terminal is, for example, a so-called personal computer, a tablet type or mobile terminal capable of transmitting and receiving data, etc., and includes a communication processing unit such as a web browser that executes data transmission and reception processing, and a data input/output terminal. It has an input/output processing unit such as a display, a touch panel, or a keyboard to perform the functions.

●Processing Flow Next, a series of processes executed by the real estate information search device 1 according to the present embodiment will be described.
First, FIG. 13 shows the entire process flow of searching for a building that can be constructed on a predetermined piece of land.
The real estate information search device 1 receives a designation of a predetermined piece of land and a search request for a building that can be constructed on the predetermined piece of land (S101).
In response, the search processing unit 11 uses the second determination function unit 113 to refer to the land information storage unit 1A and the building information storage unit 1C, and based on the basic information and conditions of the predetermined land and building, determines the predetermined information. A search is made for a building that can be constructed on the land (S102).
Furthermore, for the buildings narrowed down by the second discrimination function section 113, the search processing section 11 uses the first discrimination function section 112 to refer to the land information storage section 1A and the building information storage section 1C, A search is made for a building whose architecture can be determined to be appropriate based on the line of sight (S103).
As a result of the above search processing by the search processing unit 11, buildings whose architecture has been determined to be appropriate are presented as search results (S104).

In the above search process, after the second discrimination function section 113 narrowed down the buildings to be searched, the first discrimination function section 112 further narrowed down the buildings. 113, after the first discrimination function section 112 narrows down the buildings to be searched, the second discrimination function section 113 may further narrow down the buildings.

Further, the designation of a predetermined piece of land can be done by, for example, using the land information stored in the land information storage unit 1A or the map information around the land (a map information storage unit may be provided to hold the land information), as shown in FIG. A map in which land is divided into sections may be displayed as a reference, and the user may be able to specify a predetermined piece of land from the map. In another example, it is also possible to accept input of an address from a predetermined input form, and thereby designate the land specified by the address. At this time, in addition to specifying the land, it is also possible to optionally accept the specification of conditions based on basic building information, so that the user can narrow down buildings based on the price range, building manufacturer, etc. desired by the user. Further, as the price as the search condition, the total price of the land specified by the user and the construction cost of the building may be selected.
In addition, the designation of a predetermined land is not limited to the user, but the real estate information search device designates a predetermined building on a predetermined website, etc. in order to suggest buildings to the user as an advertisement. It may also request a search for a building that can be constructed on the building.

Next, details of the process of S102 mentioned above will be explained with reference to FIG. 14.
First, the second determination function unit 113 of the search processing unit 11 determines whether or not the building stored in the building information storage unit 1C has basic conditions that match the basic information of a predetermined land (S201 ). Furthermore, buildings with building conditions that match the land conditions are narrowed down (S202). Here, information such as the building coverage ratio and floor area ratio determined for each land is compared with information such as the site area and construction area of each building, and the designated land is The buildings that can be constructed are narrowed down.

Then, for the buildings narrowed down as described above, the second determination function unit 113 further determines whether the shape of the building fits within the shape of the land in a state where the land direction of the predetermined land and the set direction of the building match. (S203).
In addition, if the shape of the building does not fit within the land shape when the land direction of the land matches the set direction of the building, the building will be built within the allowable angle range for the set direction set for the building. It is determined whether the shape of the building fits into the shape of the land by tilting the land (S204).

As a result, if the building shape of the building does not fit within the land shape even within the range of allowable angles set for the building, the building is treated as not meeting the search conditions.
On the other hand, in the process of S203, if the building shape of the building fits within the land shape with the land direction of the land and the set direction of the building matching, and in the process of S204, the set direction of the building is changed to the allowable angle. If the building shape of the building fits within the land shape when the building is tilted within the range of , it is determined that the building satisfies the search conditions in the processing by the second determination function unit 113.

Then, for the buildings narrowed down as described above, the second discrimination function unit 113 determines that the building of the building fits into the shape of the land in a state where the road direction of the land specified by the user matches the road direction of the building. It is determined whether the shape fits (S205).
Furthermore, if the shape of the building does not fit within the land shape when the land access direction and the building's road direction are aligned, the road direction of the building is tilted within the allowable angle range. , it is determined whether the shape of the building fits within the land shape (S206).

As a result, if the building shape of the building does not fit within the land shape even within the range of allowable angles set for the building, the building is treated as not meeting the search conditions.
On the other hand, in the process of S205, if the building shape of the building fits within the land shape with the land access direction and the building's road direction matching, and in the process of S206, the building's road direction is adjusted to an allowable angle. If the building shape of the building fits within the land shape when the building is tilted within the range of , it is determined that the building satisfies the search conditions in the processing by the second determination function unit 113.

The order of processing based on basic conditions in S201, processing based on land conditions and building conditions in S202, processing based on the set direction of the building in S203 and S204, and processing based on the road direction of the building in S205 and S206 is different. The order is not limited to that described in this example, and may be executed in a different order from this example. Furthermore, only one or a portion of these processes may be executed.

Next, details of the process of S103 mentioned above will be explained with reference to FIG. 15.
The generation processing unit 12 generates a three-dimensional image of the surrounding environment of a predetermined land from the captured image of the surrounding environment of the predetermined land with reference to the surrounding environment information storage unit 1B (S301).
In response to this, the synthesis processing unit 13 synthesizes the three-dimensional image of the building with the three-dimensional image of the surrounding environment of the predetermined land, and creates a three-dimensional composite image in which the predetermined land and the building are integrally represented. Generate (S302). As a result, a three-dimensional image in which buildings are three-dimensionally superimposed on a predetermined piece of land is generated.

The viewpoint setting function unit 111 identifies a predetermined object included in a three-dimensional image of the surrounding environment of a predetermined land (S303). In other words, identifying a given object, such as a window or an outside staircase of a building built around a given piece of land, where people may be present and which can reasonably be considered to have a viewpoint. .
The viewpoint setting function unit 111 sets a virtual viewpoint at a predetermined location including the predetermined object (S304). These virtual viewpoints are things and places that can reasonably be considered to have a human viewpoint, and by setting such virtual viewpoints, when a building is constructed on a designated piece of land, it is possible to reach inside the building. It is possible to grasp the expected direction and angle of the line of sight.

Based on the window layout stored in the building information storage unit 1C, the first determination function unit 112 determines the window of the building from the viewpoint of a virtual standing point outside the building when a building is constructed on a predetermined land. The direction and angle of the line of sight that reaches the inside of the building are compared with a predetermined threshold value to determine whether or not they are within an allowable range (S305).
As a result, if the direction and angle of the line of sight from the virtual viewpoint are within the allowable range, it is treated as satisfying the search condition.

On the other hand, in S305, if the direction and angle of the line of sight from the virtual viewpoint are not within the permissible range, the first determination function unit 112 uses the window change permissible information stored in the building information storage unit 1C. As a result of changing the window layout within the permissible range by referring to It is determined (S306).
As a result, if the window layout is changed within the permissible range, and the direction and angle of the line of sight from the virtual viewpoint are within the permissible range, the search condition is considered to be satisfied. On the other hand, if the direction and angle of the line of sight from the virtual viewpoint do not fall within the allowable range even if the window layout is changed within the allowable range, the search condition is treated as not being satisfied.

●Display of search processing results The results of the above search processing are presented, for example, in the example shown in FIG. 17. Note that the example in FIG. 17 shows the results of a search on a predetermined website or terminal for a building that can be constructed on a predetermined piece of land designated by the user.
In this example, the top three buildings that can be constructed on the predetermined land are listed in accordance with the recommendation order set by the order setting unit 15. The three buildings are displayed as three-dimensional images 101, 102, and 103, respectively, placed on a predetermined piece of land, and it is possible to select one of the three-dimensional images 101, 102, and 103 shown in a list. The image can be displayed in a larger size in the enlarged display field 104 by . Note that the example in FIG. 17 shows a case where the three-dimensional image 101 is enlarged and displayed in the enlarged display field 104, and the three-dimensional image 101 shown in the list is displayed with a dotted line to indicate that it has been selected. It has become.

Each of the three-dimensional images 101, 102, 103 is a buildable building as a result of changing the orientation of the building and the road direction within the permissible range, and/or as a result of changing the window layout of the building within the permissible range. In the case of a three-dimensional image of a recognized building, a three-dimensional image synthesized with the set direction, road direction, and window layout changed may be displayed.
Further, the three-dimensional image 101 in the enlarged display field 104 can be rotated, enlarged or reduced by a predetermined operation, and can be viewed from various angles.

Building evaluation information 101a, 102a, 103a divided into predetermined items is attached to each three-dimensional image 101, 102, 103. The predetermined items include, for example, budget, sunlight, visibility, floor plan, area, openness, and other items that influence the purchase by a prospective purchaser of a predetermined land or building. The person item allows you to understand the amount of line of sight and how many viewpoints such as windows and balconies of other buildings exist in the surrounding area, and the openness item allows you to understand things such as the fact that there are not too many nearby residences. I can understand it.
In this example, the qualitative evaluation of each item is shown by the number of stars. For example, the evaluation criteria may be, in the case of a budget, the lower the price than the market price, the higher the evaluation, or in the case of sunlight, the larger the area on the building that can secure sunlight, the higher the evaluation. Additionally, based on the direction and angle of the line of sight based on a virtual viewpoint, the smaller the amount of line of sight reaching into the building through the building's windows, the higher the rating.

Note that the recommendation order by the order setting unit 15 can be determined by the overall evaluation of each item, or can be determined by the evaluation of any one or more of the items. Therefore, the search results can be displayed in a recommendation order based only on the number of people watching, that is, the amount of line of sight reaching into the building.
Further, the stars forming the evaluation information 101a, 102a, and 103a shown in the example of FIG. 17 are just one example, and may be formed by a bar graph, a numerical value, or a pattern or mark that can identify the evaluation contents.

In addition, in this example, a car object 105 is prepared, and as shown in FIG. 18, it is assumed that this object 105 is appropriately placed on a predetermined piece of land and the car is parked on the site. be able to. In this case, by holding a three-dimensional image of the object 105 in advance, the composition processing unit 13 can compose the object 105 consisting of a three-dimensional image into a three-dimensional image composed of a predetermined land and buildings.

By pressing the download button 106, the three-dimensional image 101 displayed in the enlarged display field 104 can be extracted as data in a predetermined format.
Furthermore, when the "Display more search results" button 107 is pressed, the buildings searched by the search processing unit 11 are newly displayed based on a predetermined priority order.

Note that, regardless of this example, the synthesis processing unit 13 generates a three-dimensional image in which a building is built on a predetermined piece of land and the surrounding environment around the predetermined piece of land is integrally reflected, and also By performing predetermined operations, the image can be viewed from any position, regardless of whether it is inside or outside the building. Furthermore, the virtual viewpoint set by the viewpoint setting function unit 111 can be identifiably displayed on the three-dimensional image, so that the appearance from the virtual viewpoint can be confirmed in the three-dimensional image. . In addition, in order to make it possible to check the sunlight from a predetermined position, the starting point of the sunlight is set at a predetermined position, and a distinguishing effect is given to the sunlight from the starting point, such as by color-coding the areas that are exposed to sunlight and those that are not. It is also possible to check the sunlight.

According to the real estate information search device 1 according to the present embodiment described above, it is possible to understand what kind of building can be built on a predetermined piece of land using a concrete three-dimensional image. In addition, if a building is built on a given piece of land, it is possible to understand how the line of sight will reach the inside of the building from outside the building, and based on the line of sight, it is possible to determine which building is best built on a given piece of land. can be searched.

In a second embodiment of the present invention, a search is made for land where a predetermined building can be constructed and is suitable.
This second embodiment is realized by a real estate information search device 1 having functional units similar to those of the first embodiment. That is, in this example as well, the real estate information search device 1 includes a land information storage section 1A, a surrounding environment information storage section 1B, a building information storage section 1C, a search processing section 11, a generation processing section 12, a composition processing section 13, and a specific processing section. A functional block includes a section 14, an order setting section 15, and a display processing section 16. Note that, in this example, among the functions executed by each functional unit, the description of the functions described in the first embodiment will be omitted.

・Search processing unit 11
The search processing unit 11 executes a process of searching for land that is a candidate for constructing a predetermined building.
This search processing unit 11 is composed of a viewpoint setting function unit 111, a first discrimination function unit 112, and a second discrimination function unit 113, and searches buildings in response to a search request from a searcher or a search request from a predetermined system. do.

The viewpoint setting function section 111 refers to the surrounding environment information storage section 1B and sets a virtual viewpoint as a standing point from which to direct the line of sight toward a predetermined building when the predetermined building is constructed on the land. . Note that the setting of the virtual viewpoint is the same as described above.

The first determination function unit 112 determines, when a predetermined building is constructed on land, the direction and angle of the line of sight reaching into the building through the windows of the predetermined building from a virtual standing point outside the building. is compared with a predetermined threshold value to determine whether the land is suitable for constructing the predetermined building.

Further, the first determination function section 112 refers to the building information storage section 1C and determines whether or not the land on which a predetermined building is constructed is suitable within the range of layouts that can be changed regarding windows.
That is, the specific processing unit 14, which will be described later, determines how the angle and direction of the line of sight reaching the building from a virtual viewpoint will be when the default window position and size of a predetermined building are changed within the changeable range. You can identify what changes. Even if the default window position or size of a given building is not permissible in comparison with the predetermined threshold, the position or size of the window is not allowed in comparison with the predetermined threshold based on the information regarding the angle and direction of the line of sight after this change. If the angle and direction of the line of sight are acceptable, the first determination function unit 112 determines that the land is suitable for constructing the predetermined building.

The second determination function unit 113 determines whether or not the land stored in the land information storage unit 1A has basic information that matches the search conditions arbitrarily specified by the searcher or a predetermined system. It is determined whether the land conditions match the building conditions of a predetermined building specified by a predetermined system.

When searching for land that matches the building conditions of a predetermined building, the second discrimination function section 113 searches for land stored in the land information storage section 1A based on the external shape of the land and the building shape of the predetermined building. , it is determined whether or not the predetermined building will fit on the land, with the land direction of the land and the set direction set for the predetermined building being matched. Furthermore, when determining whether a predetermined building will fit on the land, it is possible to determine whether the building can be accommodated with the set direction of the building tilted within an allowable angle range.

The second determination function unit 113 also determines whether or not a predetermined building can fit in the land stored in the land information storage unit 1A with the road direction of the predetermined land and the road direction of the building matching. to judge. When determining whether the predetermined building will fit on the land, it is also possible to determine whether the building can be tilted in the direction of the road within an allowable angle range.

・Synthesis processing unit 13
The composition processing unit 13 performs a process of synthesizing a three-dimensional image of a predetermined building with a three-dimensional image of the surrounding environment of the land to generate a three-dimensional composite image in which the land and the predetermined building are integrally represented. Execute.

・Specific processing unit 14
Based on the composite image generated by the composite processing unit 13, when a predetermined building is constructed on the land, the specific processing unit 14 is configured to determine whether a predetermined building can be viewed from a virtual standing point outside the building through the window of the predetermined building. to identify the direction and angle of the line of sight reaching into the building.
The specific processing unit 14 also determines how the direction and angle of the line of sight reaching the building from a virtual viewpoint changes when the default window position and size of a predetermined building is changed within the changeable range. It is also possible to specify
In this example as well, the specific processing unit 14 sets the origin of sunlight entering the building through the window at a predetermined position, and determines the direction of the sunlight entering the predetermined building from the predetermined position. and angles can be specified.

・Order setting section 15
The order setting unit 15 can set the recommendation order of land based on a qualitative evaluation that comprehensively takes into account each predetermined item or the predetermined items regarding the search results for land on which a predetermined building can be constructed.

In this embodiment as well, a predetermined terminal configured to be able to communicate via a network such as the Internet is provided, and the execution results of the functions included in the real estate information search device 1 can be obtained using the predetermined terminal.

●Processing Flow Next, a series of processes executed by the real estate information search device 1 according to the present embodiment will be described.
First, FIG. 19 shows the entire flow of processing for searching for land on which a predetermined building can be constructed.
The real estate information search device 1 receives a designation of a predetermined building and a search request for land on which the predetermined building can be constructed (S401).
In response, the search processing unit 11 uses the second determination function unit 113 to refer to the land information storage unit 1A and the building information storage unit 1C, and determines the predetermined information based on the basic information and conditions of the predetermined building and land. Search for land on which a building can be constructed (S402).
Furthermore, regarding the land narrowed down by the second discrimination function section 113, the search processing section 11 uses the first discrimination function section 112 to refer to the land information storage section 1A and the building information storage section 1C, A search is made for land on which it can be determined that a predetermined building can be appropriately constructed based on the line of sight that can be reached (S403).
As a result of the above search processing by the search processing unit 11, land on which it has been determined that the construction of a predetermined building is appropriate is presented as a search result (S404).

In the above search process, after the second discrimination function section 113 narrowed down the land to be searched, the first discrimination function section 112 further narrowed down the lands. 113, after the first discrimination function section 112 has narrowed down the lands to be searched for, the second discrimination function section 113 may further narrow down the lands.
In addition, the designation of a predetermined building is not limited to the user's designation, and the real estate information search device designates the predetermined building and uses the predetermined information on a predetermined website etc. in order to propose land to the user as an advertisement. It may also request a search for land on which a building can be constructed.

Next, details of the process of S402 mentioned above will be explained with reference to FIG. 20.
First, the second determination function unit 113 of the search processing unit 11 determines whether or not the land stored in the land information storage unit 1A has basic conditions that match the basic information of a predetermined building (S501 ). Furthermore, lands with land conditions that match the building conditions of a predetermined building are narrowed down (S502). Here, information such as building coverage ratio and floor area ratio determined for each piece of land is compared with information such as the site area and construction area of each building. Land on which buildings can be constructed will be narrowed down.

Then, the second discrimination function unit 113 further determines that, for the land narrowed down as described above, the building shape of the predetermined building fits within the land shape, in a state where the land direction of the land matches the set direction of the predetermined building. It is determined whether or not (S503).
In addition, if the building shape of the predetermined building does not fit within the land shape when the land direction of the land matches the set direction of a predetermined building, the set direction set for the predetermined building will be allowed. By tilting the building within a possible range of angles, it is determined whether the shape of the predetermined building fits within the shape of the land (S504).

As a result, if the building shape of the predetermined building does not fit within the land shape even within the allowable angle range set for the predetermined building, the land is treated as not meeting the search conditions.
On the other hand, in the process of S503, if the building shape of the predetermined building fits within the land shape with the land direction of the land and the set direction of the predetermined building matching, and in the process of S254, the predetermined building If the building shape of the predetermined building fits within the land shape with the set direction tilted within the allowable angle range, the land is deemed to satisfy the search conditions in the processing by the second discrimination function unit 113. be judged.

Then, the second discrimination function unit 113 continues by determining that, for the land narrowed down as described above, in a state where the road direction of the land and the road direction of the predetermined building match, the building shape of the predetermined building corresponds to the land shape. It is determined whether or not it fits (S505).
Furthermore, if the building shape of the predetermined building does not fit within the land shape with the land access direction and the road direction of the predetermined building aligned, the road direction of the predetermined building should be adjusted to the allowable angle. It is determined whether the shape of the predetermined building fits within the shape of the land in a tilted state within the range (S506).

As a result, if the building shape of the predetermined building does not fit within the land shape even within the allowable angle range set for the predetermined building, the land is treated as not meeting the search conditions.
On the other hand, in the process of S505, if the building shape of the predetermined building fits within the land shape with the road direction of the land and the road direction of the predetermined building matching, and in the process of S506, the predetermined building If the building shape of the predetermined building fits within the land shape with the road direction tilted within the allowable angle range, the land is deemed to satisfy the search conditions in the processing by the second discrimination function unit 113. be judged.

In addition, processing based on basic conditions in S501, processing based on land conditions and building conditions in S502, processing based on the set direction of the building and the land direction of the land in S503 and S504, and processing based on the road direction of the building and the land in S505 and S506. The order of processing based on the road direction is not limited to the order described in this example, and may be executed in a different order from this example. Furthermore, only one or a portion of these processes may be executed.

Next, details of the process of S503 mentioned above will be explained with reference to FIG. 21.
The generation processing unit 12 refers to the surrounding environment information storage unit 1B and generates a three-dimensional image of the surrounding environment of the land from the photographed image of the surrounding environment of the land that is the search target (S601).
In response to this, the synthesis processing unit 13 synthesizes the three-dimensional image of the predetermined building with the three-dimensional image of the surrounding environment of the land, and creates a three-dimensional composite image in which the land and the predetermined building are integrally represented. Generate (S602). As a result, a three-dimensional image in which a predetermined building is three-dimensionally superimposed on the land is generated.

The viewpoint setting function unit 111 identifies a predetermined object included in the three-dimensional image of the surrounding environment of the land (S603). That is, a predetermined object is identified, such as a window of a building built around the land or an external staircase, where there is a possibility that people may be present and that can reasonably be considered to have a viewpoint.
The viewpoint setting function unit 111 sets a virtual viewpoint at a predetermined location including the predetermined object (S604). These virtual viewpoints are things and places that can reasonably be considered to have a human viewpoint, and by setting such virtual viewpoints, when a predetermined building is constructed on land, it is possible to reach inside the building. It is possible to grasp the expected direction and angle of the line of sight.

Based on the window layout stored in the building information storage unit 1C, the first determination function unit 112 determines the window of the building from the viewpoint of a virtual standing point outside the building when a predetermined building is constructed on land. The direction and angle of the line of sight that reaches the inside of the building are compared with a predetermined threshold value to determine whether or not they are within an allowable range (S605).
As a result, if the direction and angle of the line of sight from the virtual viewpoint are within the allowable range, it is treated as satisfying the search condition.

On the other hand, in S605, if the direction and angle of the line of sight from the virtual viewpoint are not within the permissible range, the first determination function unit 112 uses the window change permissible information stored in the building information storage unit 1C. As a result of changing the window layout within the permissible range by referring to It is determined (S606).
As a result, if the window layout is changed within the permissible range, and the direction and angle of the line of sight from the virtual viewpoint are within the permissible range, the search condition is considered to be satisfied. On the other hand, if the direction and angle of the line of sight from the virtual viewpoint do not fall within the allowable range even if the window layout is changed within the allowable range, the search condition is treated as not being satisfied.

According to the real estate information search device 1 according to the present embodiment described above, it is possible to understand on what kind of land a predetermined building is built based on a specific three-dimensional image. In addition, if a specified building is built on land, it is possible to understand how the line of sight will reach the inside of the building from outside the building, and based on the line of sight, it is possible to determine which land is suitable for building a specified building. can be searched.

Note that in this embodiment as well, search processing results and three-dimensional images can be displayed as in the first embodiment.

In addition, in the process of searching for a building or land according to the embodiment of the present invention, if the land is large and there is a degree of freedom in the arrangement of buildings, the first determination function unit 112 may search for land conditions, building conditions, and As long as changes in the window layout are allowed, various layouts of the building may be simulated to determine whether the line of sight falls within the allowable range.

In addition, in the above embodiments of the present invention, line-of-sight obstructing objects such as louvers, fences, walls, plantings, exteriors, and garages that can avoid the line of sight are included in the three-dimensional image of buildings on the premises, and It may also be possible to simulate how the line of sight of the user can be avoided.
Further, the first determination function unit 112 may be configured to be able to determine whether the direction and angle of the line of sight reaching into the building falls within an allowable range when such a line of sight blocker is provided.

Further, in the search results, etc., information may be provided so that information on buildings, commercial facilities, etc. in the vicinity of a predetermined land can be grasped.

Furthermore, the evaluations (sunlight, visibility, sense of openness, etc.) shown as the search results of the real estate information search device 1 according to the embodiment of the present invention may be reflected in the real estate price assessment. That is, the above-mentioned evaluation is added as a calculation standard to the price of real estate, which is calculated from real estate market prices, profit forecasts, and actual demand based on information on actual buying and selling wishes. As a result, for example, indicators directly connected to livability, such as sunlight, visibility, and a sense of openness, are reflected in the price, making it possible to present a more appropriate appraisal.

1 Real Estate Information Search Device 1A Land Information Storage Unit 1B Surrounding Environment Information Storage Unit 1C Building Information Storage Unit 11 Search Processing Unit 111 Viewpoint Setting Function Unit 112 First Discrimination Function Unit 113 Second Discrimination Function Unit 12 Generation Processing Unit 13 Composition Processing Unit 14 Specific processing section 15 Order setting section 16 Display processing section

Claims (10)

Surrounding environment information related to the surrounding environment of a predetermined land,
As an input, information about a predetermined building, which includes at least window information related to the layout of windows in the predetermined building;
The output is the suitability of construction of the predetermined building on the predetermined land based on the line of sight and angle reaching into the building through the window of the predetermined building;
The surrounding environment information includes information on a predetermined object that can be reasonably considered to have a viewpoint;
Real estate information processing equipment. The suitability of the construction of the predetermined building is determined by comparing the angle of the line of sight reaching into the building with a predetermined threshold.
The real estate information processing device according to claim 1. The building information includes change permission information regarding a changeable range for the window layout of the predetermined building,
The suitability of the architecture of the predetermined building is based on the line of sight and angle reaching into the building through the windows of the predetermined building within a range of layouts that can be changed for the windows.
The real estate information processing device according to claim 1 or 2. The information related to the surrounding environment of the predetermined land is a photographed image of the surrounding environment of the predetermined land.
A real estate information processing device according to any one of claims 1 to 3. further outputting a composite image that combines the surrounding environment of the predetermined land and the three-dimensional image of the predetermined building;
A real estate information processing device according to any one of claims 1 to 4. Surrounding environment information related to the surrounding environment of a predetermined land,
inputting information about a predetermined building, including at least window information related to the layout of windows in the predetermined building;
A computer executes the step of outputting the suitability of constructing the predetermined building on the predetermined land based on the line of sight and angle reaching into the building through the windows of the predetermined building;
The surrounding environment information includes information on a predetermined object that can be reasonably and intellectually considered to have a viewpoint.
Real estate information processing method. Surrounding environment information related to the surrounding environment of a predetermined land,
inputting information about a predetermined building, including at least window information related to the layout of windows in the predetermined building;
causing a computer to execute the step of outputting the suitability of constructing the predetermined building on the predetermined land based on the line of sight and angle reaching into the building through the windows of the predetermined building;
The surrounding environment information includes information on a predetermined object that can be reasonably and intellectually considered to have a viewpoint.
computer program. Surrounding environment information related to the surrounding environment of a predetermined land,
Building information including at least window information related to the layout of windows in the building is input;
Based on the line of sight and angle reaching into the building through the windows of the predetermined building, outputting a search result of a building whose construction on the predetermined land is determined to be appropriate;
The surrounding environment information includes information on a predetermined object that can be reasonably and intellectually considered to have a viewpoint.
Real estate information search device. Surrounding environment information related to the surrounding environment of a predetermined land,
inputting building information that includes at least window information related to the layout of windows in the building;
A computer executes the step of outputting a search result of a building whose construction is determined to be appropriate on the predetermined land based on the line of sight and angle reaching into the building through the window of the predetermined building;
The surrounding environment information includes information on a predetermined object that can be reasonably and intellectually considered to have a viewpoint.
How to search for real estate information. Surrounding environment information related to the surrounding environment of a predetermined land,
inputting building information that includes at least window information related to the layout of windows in the building;
causing a computer to execute the step of outputting a search result of a building whose construction on the predetermined land is determined to be appropriate based on the line of sight and angle reaching into the building through the window of the predetermined building;
The surrounding environment information includes information on a predetermined object that can be reasonably and intellectually considered to have a viewpoint.
computer program.

Images