JP7085222B2 - Real estate information retrieval equipment, methods, and computer programs - Google Patents

Description

The present invention relates to a technique for searching a building that can be built on a predetermined land or a land that can be built by a predetermined building.

Recently, in the construction industry, despite negative factors such as consumption tax hike and soaring material costs due to the depreciation of the yen, sales of detached houses and residential land such as various subsidies and mortgage interest rates that record the lowest level ever Is still being boosted.

Generally, when a home maker sells a house to a customer, in a custom-built house, the customer specifies the desired floor plan from the floor plans proposed by the home maker, and searches for land on which the building with the specified floor plan can be built. Is common. However, since there are building conditions for each land such as building coverage ratio and floor area ratio, it is difficult for customers who are not accustomed to such conditions to find land where a building with a predetermined floor plan can be built. On the other hand, even if the housing maker searches for land, it is troublesome to search while grasping the detailed customer's wishes such as the surrounding environment of the land.

In addition, when purchasing a building or land, the architectural image of the building after purchase is assumed in advance, but it is difficult for an unfamiliar individual purchaser or the like to accurately recognize the actual image. In particular, after building a building, it is difficult to imagine the line of sight and sunshine that reach the inside of the building from outside the building, and it is not uncommon for people to be confused for the first time when they actually live in the building.
Therefore, when purchasing a building or land, if the image of the building built on the land can be accurately recognized, the purchaser can conclude a real estate purchase contract such as the building or land with peace of mind. In addition, if it is possible to search for real estate that can be comfortably lived based on the line of sight from outside the building, which is difficult to imagine, such a search system is highly convenient for those who are looking for real estate.

Japanese Unexamined Patent Publication No. 2007-31681819 Japanese Unexamined Patent Publication No. 2001-325321 Japanese Patent Application Laid-Open No. 2003-216976 JP-A-2018-092503

In the above patent document, a system is proposed that determines whether a building having a predetermined floor plan can be built on a predetermined land based on information such as the floor area ratio and the building coverage ratio of the house, and evaluates the building by sunshine or the like. Has been done.
However, based on the concrete image when building a building on the land, considering the line of sight that reaches the inside of the building from the outside of the building, it is preferable to build on the specified land, or to build the specified building. There is no efficient search for suitable land.

Therefore, the present invention is based on a concrete image when a building is built on land, and in consideration of the line of sight reaching the inside of the building from outside the building, it is preferable to build the building on a predetermined land, or a predetermined building. It is an object of the present invention to provide a device for efficiently searching for land where it is suitable to build a building.

In order to achieve the above object, the real estate information search device according to one aspect of the present invention is a device that proposes a building that can be built on a predetermined land, and stores information about the predetermined land. Means, peripheral environment information storage means that stores information related to the surrounding environment of the predetermined land, and building information storage means that stores at least window information related to the layout of windows in the building as information of the building to be built on the land. And a search processing means for searching for a candidate building to be built on the predetermined land, and the search processing means refers to the surrounding environment information storage means to place a building on the predetermined land. A viewpoint setting function unit that sets a virtual viewpoint as a stance point to send a line of sight to a building when it is built, and a virtual stance point outside the building when a building is built on the predetermined land. From the viewpoint, it is composed of a first discrimination function unit that determines the suitability of building construction by comparing with a predetermined threshold value based on the direction and angle of the line of sight reaching the inside of the building through the window of the building.

Further, the building information storage means stores change permissible information relating to a changeable range for the layout of the windows of the building, and the first determination function unit constituting the search processing means stores the building information storage means. With reference to this, the suitability of the building may be determined within the range of the layout that can be changed for the window.

Further, the building information storage means stores information related to the arrangement of buildings that can be adjusted according to the conditions of the land when the building is built on the land, and the search processing means further stores the building information storage means. The second discriminant function unit for determining whether or not the building can be built may be included as a component within the range of the arrangement that can be adjusted for the building according to the predetermined land condition.

Further, the search result of the building may further include an order setting means for setting a recommended order according to the amount of the line of sight reaching the inside of the building.

Further, it may further have a composition processing means for generating a composite image by synthesizing the three-dimensional image of the building with respect to the three-dimensional image of the surrounding environment of the predetermined land.

Further, it may further have a generation processing means for generating a three-dimensional image of the surrounding environment of the predetermined land from the photographed image of the surrounding environment of the predetermined land.

In addition, based on the composite image, when the building is built on a predetermined land, the direction and angle of the line of sight that reaches the inside of the building through the window of the building from the viewpoint as a virtual stance point outside the building. It may further have 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 to the building at the position where the predetermined object exists. A virtual viewpoint as a stance point may be set.

Further, the composite image may further include a first display processing means for displaying an image with a predetermined stance point as a virtual viewpoint.

Further, in the composite image, a second display processing means for displaying an image in the building of sunshine incident on the building through the window may be further provided.

Further, the real estate information search method according to another aspect of the present invention is a method of proposing a building that can be built on a predetermined land, and is a land information storage means that stores information on the predetermined land and the predetermined land. A computer having a peripheral environment information storage means for storing information related to the surrounding environment of the land and a building information storage means for storing at least window information related to the layout of windows in the building as information on the building to be built on the land. However, when a search process for searching for a candidate building to be built on the predetermined land is executed, and the search process refers to the surrounding environment information storage means and the building is constructed on the predetermined land. From the viewpoint setting process for setting a virtual viewpoint as a stance point to send a line of sight to the building, and from the viewpoint as a virtual stance point outside the building when the building is built on the predetermined land. It is composed of a discrimination process for determining the suitability of a building's construction by comparing it with a predetermined threshold value based on the direction and angle of the line of sight reaching the inside of the building through the window of the building.

Further, the computer program according to another aspect of the present invention is a computer program for proposing a building that can be built on a predetermined land, and is a land information storage means that stores information about the predetermined land and the above-mentioned. It has a peripheral environment information storage means that stores information related to the surrounding environment of a predetermined land, and a building information storage means that stores at least window information related to the layout of windows in the building as information of a building to be built on the land. A computer is made to execute a search process for searching for a candidate building to be built on the predetermined land, and the search process refers to the surrounding environment information storage means to build a building on the predetermined land. From the viewpoint setting process that sets a virtual viewpoint as a stance point to send a line of sight to the building, and from the viewpoint as a virtual stance point outside the building when the building is built on the predetermined land. Based on the direction and angle of the line of sight that reaches the inside of the building through the window of the building, it is composed of a discrimination process for determining the suitability of the building by comparing with a predetermined threshold value.

Further, the real estate information search device according to another aspect of the present invention is a device that proposes a land on which a predetermined building can be constructed, and is a land information storage means that stores information about the land and a surrounding environment of the land. The surrounding environment information storage means that stores the information related to the above, the building information storage means that stores at least the window information related to the layout of the windows in the building as the information of the predetermined building, and the land on which the predetermined building can be built. The search processing means has a search processing means for searching, and the search processing means serves as a stance point for sending a line of sight to the building when the predetermined building is constructed on the land with reference to the surrounding environment information storage means. When the predetermined building is built on the land, it reaches the inside of the building through the window of the building from the viewpoint as a virtual stance point outside the building. It is composed of a discrimination function unit that determines whether or not a building is possible by comparing it with a predetermined threshold value based on the direction and angle of the line of sight.

Further, the real estate information search method according to another aspect of the present invention is a method of proposing a land on which a predetermined building can be constructed, and is a land information storage means for storing information about the land and a surrounding environment of the land. A computer having a peripheral environment information storage means for storing information related to the above and a building information storage means for storing at least window information related to the layout of windows in the building as the information of the predetermined building shall store the predetermined building. A search process for searching for buildable land is executed, and the search process sends a line of sight to the building when the predetermined building is built on the land with reference to the surrounding environment information storage means. The viewpoint setting process for setting a virtual viewpoint as a stance point, and when the predetermined building is built on the land, from the viewpoint as a virtual stance point outside the building, inside the building through the window of the building. It is composed of a discrimination process for determining whether or not a building is possible by comparing it with a predetermined threshold value based on the direction and angle of the line of sight that reaches the building.

Further, the 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, and is a land information storage means for storing information about the land and a peripheral area of the land. The predetermined computer having a peripheral environment information storage means for storing information related to the environment and a building information storage means for storing at least window information related to the layout of windows in the building as the information of the predetermined building. A search process for searching for a land on which a building 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, the line of sight to the building is executed. From the viewpoint setting process that sets the virtual viewpoint as a stance point to send, and the viewpoint as a virtual stance point outside the building when the predetermined building is built on the land, the building is passed through the window of the building. It is composed of a discrimination process for determining whether or not a building is possible 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 in consideration of the north, south, east, and west directions set in the building and the direction in which the road should face, and the building information as the search result. Can be proposed in a batch.
In addition, considering the north, south, east, and west directions set for the building and the direction in which the road should face, the land that the building can actually build is searched, and the land information as the search result is proposed collectively. can do.
Further, in any case, a concrete image when the building is built on the land can be displayed in an easy-to-understand manner.

It is a functional block diagram which showed the function which the real estate information search apparatus which concerns on 1st Embodiment of this invention has. It is a figure which showed an example of the data stored in the land information storage part in the real estate information search apparatus which concerns on this embodiment. It is a figure which showed an example of the data stored in the building information storage part in the real estate information search apparatus which concerns on this embodiment. It is a schematic diagram explaining the concept of a setting direction and a land direction in the real estate information search apparatus which concerns on this embodiment. It is a schematic diagram explaining the concept of a road direction and a road direction of a road in the real estate information retrieval apparatus which concerns on this embodiment. It is a schematic diagram schematically showing the concept of the process of determining the match between the building shape and the land shape in the real estate information retrieval apparatus according to this embodiment. It is a schematic diagram schematically showing the concept of the process of determining the match between the building shape and the land shape in the real estate information retrieval apparatus according to this embodiment. It is a schematic diagram schematically showing the concept of the process of determining the match between the building shape and the land shape in the real estate information retrieval apparatus according to this embodiment. It is a schematic diagram schematically showing the concept of the process of determining the match between the building shape and the land shape in the real estate information retrieval apparatus according to this embodiment. It is a schematic diagram explaining the three-dimensional image of the surrounding environment around a predetermined land in the real estate information retrieval apparatus which concerns on this embodiment. It is a schematic diagram explaining the state which combined the 3D image of a building with the 3D image of the surrounding environment around a predetermined land in the real estate information retrieval apparatus which concerns on this embodiment. It is a schematic diagram explaining the state which combined the 3D image of a building with the 3D image of the surrounding environment around a predetermined land in the real estate information retrieval apparatus which concerns on this embodiment. It is a processing flow diagram which showed the whole flow of processing by the real estate information retrieval apparatus which concerns on this embodiment. It is a processing flow diagram which showed the flow of the search processing by the 2nd discriminant function part among the processing by the real estate information search apparatus which concerns on this embodiment. It is a processing flow diagram which showed the flow of the search processing by the 1st discrimination function part among the processing by the real estate information search apparatus which concerns on this embodiment. It is a figure which showed the example of the screen which is displayed on the terminal at the time of a searcher specifying a land in the real estate information search apparatus which concerns on this embodiment. It is a figure which showed the example of the screen which shows the search result in the real estate information search apparatus which concerns on this embodiment. It is a figure which showed the example of the screen which shows the search result in the real estate information search apparatus which concerns on this embodiment. It is a processing flow diagram which showed the whole flow of processing by the real estate information retrieval apparatus which concerns on the 2nd Embodiment of this invention. It is a processing flow diagram which showed the flow of the search processing by the 2nd discriminant function part among the processing by the real estate information search apparatus which concerns on this embodiment. It is a processing flow diagram which showed the flow of the search processing by the 1st discrimination function part among the processing by the real estate information search apparatus which concerns on this embodiment.

Hereinafter, the real estate information retrieval device according to the embodiment of the present invention will be described with reference to the drawings.
The real estate information search device according to the present embodiment is a device for searching a building to be built on a predetermined land or a land for constructing a predetermined building. As a specific usage scene, a house maker that sells buildings, especially custom-built houses, a real estate business that sells land, etc. use it to propose buildings and land to customers, or are thinking about purchasing real estate. It is envisioned that people will use it to find real estate that suits their wishes.

● Functional configuration The real estate information search device 1 according to the first embodiment shown in FIG. 1 searches for a building that can be built and is suitable for a predetermined land.
The real estate information search device 1 is realized by a so-called server computer or the like, and has hardware resources such as a CPU (Central Processing Unit), RAM (Random Access Memory), ROM (Read Only Memory), a hard disk drive, a computer program executed by the CPU, and the like. Land information storage unit 1A, surrounding environment information storage unit 1B, building information storage unit 1C, search processing unit 11, generation processing unit 12, synthesis processing unit 13, specific processing unit 14, order setting unit 15, and A functional block including a display processing unit 16 is configured.

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

The basic information is information about the land itself, and includes information such as the address and price of the land. In addition, information on the neighborhood such as the distance from the nearest station to a predetermined land and whether or not there is a supermarket in the neighborhood may be included.
The land condition is information necessary for constructing a building on the land, and is composed of, for example, a building coverage ratio, a floor area ratio, a site area, a land shape, a land direction, a road direction, and the like. This land condition contains information that can be used to determine whether or not a building is to be restricted or regulated physically or based on laws and regulations when building a building on the land.

The land shape is information related to the shape of the land, and it is possible to grasp what kind of building fits in the site.
The land direction is information related to the direction of the land, and it is possible to grasp which part of the land shape faces in which direction of north, south, east, and west.
The tangential direction is information about the direction of the road facing the land.

・ Surrounding environment information storage unit 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 contains, for example, information such as buildings existing around the predetermined land and adjacent roads, and stores a three-dimensional image of the surroundings centered on the predetermined land. ..
The three-dimensional image of the surroundings centered on the predetermined land may be registered in the surrounding environment information storage unit 1B in advance, and is generated from the captured image around the predetermined land by the generation processing unit 12 described later. It may be registered after the above.

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 the individual lands and buildings that make up the map have a three-dimensional image and can be observed three-dimensionally at a predetermined location, as well as a tertiary location at a predetermined location from a predetermined angle. A map that was originally observed. A map that observes a predetermined place three-dimensionally from a predetermined angle is, for example, a map by STREET VIEW (registered trademark) provided by Google Inc., and is a photograph when an observer takes a picture of land etc. 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 related to the building.
As shown in FIG. 3, for example, as shown in FIG. 3, the building information storage unit 1C is associated with the basic information of the building, the building conditions, the three-dimensional image of the building, and the window information for each building ID that can individually identify the building. It is 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 building 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. Will be done. This building condition includes information that can be used to determine whether or not a building is restricted or regulated physically or based on laws and regulations when building a building on land.

The set direction is information related to the north, south, east, and west directions set in the building, and is preset according to the direction from the center of the floor plan of the building. This setting direction is actually determined by the position around the water, the direction of the window of the living room, and the like.
The setting direction tolerance is information related to an angle that can be tilted or shifted with respect to the north, south, east, and west directions set in the building. That is, as shown in FIG. 4, the setting direction tolerance is an angle (permissible angle) that allows the setting direction of north, south, east, and west set for each building to be tilted with respect to the land direction related to north, south, east, and west of the land. ).
When constructing a predetermined building on the land, the direction of north, south, east, and west set for the building does not have to exactly match the actual north, south, east, and west, and deviation within a predetermined allowable angle is allowed.

The road direction is information relating to the direction in which the building should face the road, and is preset according to the direction from the center of the floor plan of the building. This road direction is actually determined by the position where the entrance is provided and the like.
The road direction tolerance is information related to an angle at which it is permissible to shift the direction of the road set in the building. That is, as shown in FIG. 5, the road direction tolerance is an angle (allowable angle) at which the road direction set for each building is allowed to be tilted with respect to the tangential direction in the land.

By comparing this building condition with the land condition of the land, it is possible to grasp whether or not the physical or legal restrictions can be cleared when constructing a predetermined building on the predetermined land.

A three-dimensional image is data showing the three-dimensional shape of a building. By synthesizing the three-dimensional image of this building with the three-dimensional image representing the surrounding environment of the predetermined land, the three-dimensional image of the predetermined land and the building built there is generated.
Further, the three-dimensional image includes not only the exterior of the building but also the inside view of the building, and by referring to the three-dimensional image of the inside view, the floor plan of the inside of the building can be grasped three-dimensionally.

The window information is information related to windows of a building, and includes information related to window layout and change tolerance information.
The layout is information that can grasp where and what size of window is installed in the building. By grasping the layout of the windows, it is possible to grasp where the line of sight from outside the building enters the building.
The layout may include information such as the standard of windows provided in the building or the supplier.

The change tolerance information is information relating to the changeable range of the window layout. That is, it is information related to the position and size that can be changed about the position and size of the window provided by default in the building, or the standard of the window that can be replaced. By referring to this change tolerance information, how can the windows provided by default in the building be changed, and how the line of sight that reaches the inside of the building from outside the building changes by changing it. Can be grasped.

・ Search processing unit 11
The search processing unit 11 executes a process of searching for a candidate building to be built on a predetermined land.
The 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 for a building in response to a search request from a searcher or a search request from a predetermined system. do.

The viewpoint setting function unit 111 sets a virtual viewpoint as a stance point to send a line of sight to the building when the building is constructed on a predetermined land with reference to the surrounding environment information storage unit 1B. More specifically, a predetermined object included in the three-dimensional image of the surrounding environment of the predetermined land is identified, and a virtual viewpoint is set at the position where the predetermined object exists. In addition, in a three-dimensional image of the surrounding environment of a predetermined land, a virtual viewpoint is set at a predetermined location.

A predetermined object is, for example, a window or a veranda of a building built around a predetermined land, an outer staircase or a passage in an apartment, etc., and there may be a person, so it is rational if there is a viewpoint. A thing or place that can be regarded. The predetermined object is identified from, for example, a three-dimensional image or a flattened image of the 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 land, which corresponds to a certain height from the ground, that is, a height corresponding to the height of a person's line of sight.
By setting a virtual viewpoint on a predetermined object or a predetermined place that can be reasonably regarded as having a human viewpoint, it is assumed that the building will reach the inside of the building when it is built on the predetermined land. It is possible to grasp the direction and angle of the line of sight.

When a building is built on a predetermined land, the first discrimination function unit 112 determines the direction and angle of the line of sight that reaches the inside of the building through the window of the building from the viewpoint as a virtual stance point outside the building. The suitability of building construction is determined by comparing with the threshold value of.
That is, 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 by the specific processing unit 14 described later, through the window of the building. How the line of sight reaches the inside of the building is identified. Based on this line-of-sight information, the first discriminating function unit 112 compares the direction and angle of the line of sight that reaches the inside of the building through the window with a predetermined threshold value. For example, the threshold value cannot be from the angle at which the line of sight enters the building from directly in front of the window to an angle tilted by a certain angle, or at the vertical angle, the angle of the line of sight entering from below in the vertical direction is allowed. , The angle of the line of sight that enters from the vertical direction information is set to be impossible. If allowed in contrast to such a threshold, the building construction is determined to be appropriate.
A predetermined threshold value 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 the viewpoint farther than a certain distance may be allowed.

Further, the first determination function unit 112 determines the suitability of the building construction within the range of the layout in which the windows can be changed with reference to the building information storage unit 1C.
That is, how does the specific processing unit 14, which will be described later, change the angle and direction of the line of sight that reaches the inside of the building from a virtual viewpoint when the position and size of the default window of the building are changed within a range that can be changed. Can be identified. Even if the default window position and size of the building is not acceptable in comparison with the predetermined threshold, the line of sight in comparison with the predetermined threshold is based on the information related to the angle and direction of the line of sight after this change. If the angle and orientation are allowed, the first discriminating function unit 112 determines that the building of the building is appropriate.

The second discrimination function unit 113 has basic information that matches the search conditions arbitrarily specified by the searcher or a predetermined system for the building stored in the building information storage unit 1C, or further, the searcher or Determine if the building conditions meet the land conditions of the given land specified by the given system.

When searching for a building that matches the land conditions of the predetermined land, the second determination function unit 113 is based on the external shape of the building stored in the building information storage unit 1C and the land shape of the predetermined land. , It is determined whether or not the land can be accommodated in the predetermined land in a state where the land direction of the predetermined land and the set direction set in the building are matched. Further, when determining whether or not the building fits in the predetermined land, it is possible to determine whether or not the building fits in a state where the setting direction of the building is tilted within an allowable angle range.

This process will be described with reference to FIGS. 6 and 7. In this example, first, as shown in FIG. 6A or FIG. 7A, the external shape of the building stored in the building information storage unit 1C is preliminarily applied to the building with respect to the land shape of the predetermined land. Match and apply the set direction and the land direction of the land. At this time, if the external shape of the building fits in the land shape with the land direction of the land and the setting direction of the building matched, the building is treated as satisfying the search condition in the processing.

On the other hand, if the external shape of the building does not fit into the land shape when the land direction of the land and the setting direction of the building are matched, it is further shown in FIG. 6 (b) or FIG. 7 (b). As described above, it is determined whether or not the external shape of the building fits into the land shape in a state where the setting direction is tilted within the allowable angle range. As a result, when the external shape of the building fits into the land shape as shown in FIG. 7B, the building is treated as satisfying the search condition in this process. On the other hand, as shown in FIG. 6B, if the external shape of the building still does not fit in the land shape, the building is treated as not satisfying the search condition.

Further, the second discrimination function unit 113 determines whether or not the building stored in the building information storage unit 1C fits in the predetermined land in a state where the tangential direction of the predetermined land and the road direction of the building match. Judge. When determining whether or not the building fits in the predetermined land, it is possible to further determine whether or not the building fits in a state where the road direction of the building is tilted within an allowable angle range.

This process will be described with reference to FIGS. 8 and 9. In this example, first, as shown in FIG. 8A or FIG. 9A, the external shape of the building stored in the building information storage unit 1C is preliminarily applied to the building with respect to the land shape of the predetermined land. The set road direction and the tangential direction of the specified land are matched and applied. At this time, if the exterior shape of the building fits in the land shape in a state where the road direction of the predetermined land and the road direction of the building match, the building is considered to satisfy the search conditions in this process. Be treated.

On the other hand, when the external shape of the building does not fit into the land shape when the road direction of the land and the road direction of the building are matched, it is further shown in FIG. 8 (b) or FIG. 9 (b). As described above, it is determined whether or not the external shape of the building fits into the land shape in a state where the road direction of the building is tilted within the allowable angle range. As a result, when the external shape of the building fits into the land shape as shown in FIG. 9B, the building is treated as satisfying the search condition in this process. On the other hand, as shown in FIG. 8B, if the external shape of the building still does not fit in the land shape, the building is treated as not satisfying the search condition.

-Generation processing unit 12
The generation processing unit 12 generates a three-dimensional image of the surrounding environment of the predetermined land from the 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 shooting camera is shot at a predetermined land or its surroundings at a fixed height, and the shooting is performed. , A three-dimensional image can be generated by synthesizing the captured images. It is also possible to generate a three-dimensional image by synthesizing two-dimensional captured images taken from a plurality of points according to the coordinates related to the shot points of the captured image and the information related to the shooting direction. ..

-Synthesis processing unit 13
The compositing processing unit 13 synthesizes a three-dimensional image of a building with a three-dimensional image of the surrounding environment of a predetermined land, and generates a three-dimensional composite image in which the predetermined land and the building are integrally represented. Run.
Specific examples of this process are shown in FIGS. 10 and 11. FIG. 10 shows a three-dimensional image of a predetermined land and its surrounding environment. In the figure, the part represented as a vacant lot is the "predetermined land" here.
Here, the synthesis processing unit 13 refers to the building information storage unit 1C and synthesizes a three-dimensional image of the building into a photographed image or image of the predetermined land. FIG. 11 shows a three-dimensional image generated by this, in which buildings are three-dimensionally superposed on a predetermined land.

It should be noted that the three-dimensional image is generated in a state where the tangential direction of the land and the direction of the land, and the road direction of the building and the setting direction are matched. If the building fits in the land by changing the road direction or setting direction of the building within the allowable angle range, the angle of the building is changed within the allowable angle range with respect to the land, and the land is changed to the land. A three-dimensional image of the building is generated.

Further, the three-dimensional image may be viewed from various angles based on the operation by the user on the user terminal 2. In this case, the output of the screen on the user terminal 2 is specifically realized by Ajax or the like.
In addition, as shown in FIG. 12, optional parts such as cars (cars, plants, fences, etc. that are incidentally provided to the building) can be freely selected and arranged in this three-dimensional image. You may be able to do it.

-Specific processing unit 14
Based on the composite image generated by the composite processing unit 13, the specific processing unit 14 builds the building through the window of the building from the viewpoint as a virtual stance point outside the building when the building is constructed on a predetermined land. Identify the direction and angle of the line of sight that reaches inside. For example, connecting the virtual viewpoint and the outer edge of a window having a certain area with a straight line, and finding the angle formed by the straight line and the window or the virtual straight line that the window forms a right angle to the window. 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 that reaches the building from a virtual viewpoint changes when the position and size of the default window of the building are changed within a changeable range. It can also be specified.

Further, the specific processing unit 14 may set the starting point of the sunshine incident on the building through the window at a predetermined position, and specify the direction and angle of the sunshine incident on the building from the predetermined position. can. By specifying the direction and angle of the sunshine, it is possible to understand what kind of sunshine is brought into the building through the windows.
The position of the starting point of sunshine can be set according to information such as the season, time zone, and place where a predetermined land exists.

・ Order setting unit 15
The order setting unit 15 can set the recommendation order of buildings by qualitative evaluation for each predetermined item or comprehensively considering the predetermined items for the search results of the buildings for the predetermined 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 specific processing unit 14, the range inside the building that can be seen from outside the building is quantified as the amount of the line of sight. The recommendation order according to the amount of line of sight can be reflected in the search results. In addition, for example, the search results are based on the recommended order according to the amount of change when the position and size of the window are changed within the range that can be changed, and the amount of change when the direction of the building for a given land is changed within the allowable range. It can also be reflected in.

-Display processing unit 16
The display processing unit 16 can generate an image in which a predetermined point is a virtual viewpoint in a three-dimensional composite image and display the image on a predetermined display device such as a display. The virtual viewpoint is arbitrarily set by, for example, a searcher, a user of the real estate information search device 1, or the like. When a user or the like refers to an image from the virtual viewpoint set arbitrarily, where and how the line of sight enters the building when the building is built on a predetermined land, or the building. You can intuitively understand what it looks like from outside the building.

Further, the display processing unit 16 can also display the image in the building of the sunshine incident on the building through the window in the three-dimensional composite image. It can be specified by the angle and direction of sunshine and the specific processing unit 14, and based on the specified angle and direction of sunshine and the window information of the building, the range of sunshine in the building is reflected on the composite image. It can also be displayed.

In addition, in the real estate information search device 1 constituting the above-mentioned functional unit, a predetermined terminal configured to be communicable via a network such as the Internet is provided, and the predetermined terminal has a function of the real estate information search device 1. You can also get the execution result. Such a predetermined terminal is composed of, for example, a so-called personal computer, a tablet-type or portable terminal capable of transmitting and receiving data, a communication processing unit such as a web browser that executes data transmission / reception processing, and data input / output. It has an input / output processing unit such as a display for performing the above and a touch panel or a keyboard.

● Process flow Next, a series of processes executed by the real estate information retrieval device 1 according to the present embodiment will be described.
First, FIG. 13 shows the entire flow of processing for searching for a building that can be built on a predetermined land.
The real estate information search device 1 receives a search request for a building that can be built on the predetermined land together with the designation of the predetermined land (S101).
In response to this, the search processing unit 11 refers to the land information storage unit 1A and the building information storage unit 1C by the second discrimination function unit 113, and based on the basic information and conditions of the predetermined land and building, the predetermined Search for buildings that can be built on the land (S102).
Further, regarding the buildings narrowed down by the second discrimination function unit 113, the search processing unit 11 refers to the land information storage unit 1A and the building information storage unit 1C by the first discrimination function unit 112, and enters the building from outside the building. Search for a building that can be judged to be appropriate based on the line of sight that can be reached (S103).
As a result of the search process by the search process unit 11 described above, the building determined to be appropriate for construction is presented as a search result (S104).

In the above search process, after narrowing down the buildings to be searched by the second discrimination function unit 113, the buildings are further narrowed down by the first discrimination function unit 112, but the first discrimination function unit 112 and the second discrimination function unit Regardless of whether or not the processing by 113 is performed, the first discriminating function unit 112 may narrow down the buildings to be searched, and then the second discriminating function unit 113 may further narrow down the buildings.

Further, for the designation of the predetermined land, for example, as shown in FIG. 16, the land information of the land information storage unit 1A and the map information around the land (may be provided and held by the map information storage unit). A map in which the land is partitioned by reference may be displayed, and the user may specify a predetermined land from the map. In another example, an address can be input from a predetermined input form, whereby the land specified by the address can be designated. At this time, in addition to the designation of the land, it is also possible to optionally accept the designation of conditions based on the basic information of the building so that the building can be narrowed down by the price range desired by the user or the manufacturer of the building in advance. Further, as the price as the search condition, the total price including the land specified by the user and the construction cost of the building may be selected.
In addition, the designation of the predetermined land is not limited to that by the user, and the real estate information retrieval device designates the predetermined building to propose the building to the user as an advertisement on the predetermined website or the like. It may request a search for a building that can be built on the building.

Next, the details of the above-mentioned processing of S102 will be described with reference to FIG.
First, the second discrimination 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). ). Further, the buildings having the building conditions that meet the land conditions of the land are narrowed down (S202). Here, the information such as the building coverage ratio and floor area ratio determined for each land is compared with the information such as the site area and building area of each building, and the designated land without exceeding the restrictions such as the building coverage ratio and floor area ratio. Buildings that can be built are narrowed down.

Then, the second discrimination function unit 113 further determines whether or not the building shape of the building fits in the land shape in the state where the land direction of the predetermined land and the setting direction of the building are matched for the buildings narrowed down as described above. Is determined (S203).
In addition, if the building shape of the building does not fit in the land shape when the land direction of the land and the setting direction of the building are matched, the building is within the allowable angle range for the setting direction set for the building. By tilting, it is determined whether or not the building shape of the building fits in the land shape (S204).

As a result, if the building shape of the building does not fit in the land shape even within the allowable angle range set for the building, the building is treated as not satisfying the search condition.
On the other hand, in the processing of S203, when the building shape of the building fits in the land shape with the land direction of the land and the setting direction of the building matched, and in the processing of S204, the setting direction of the building is the allowable angle. If the building shape of the building fits in the land shape in the state of being tilted within the range of, it is determined that the building satisfies the search condition in the processing by the second discrimination function unit 113.

Then, the second discrimination function unit 113 continues, for the building narrowed down as described above, in a state where the tangential direction of the land specified by the user and the road direction of the building match, the building of the building has the same land shape. It is determined whether or not the shape fits (S205).
Furthermore, if the building shape of the building does not fit into the land shape when the road direction of the land and the road direction of the building are matched, the road direction of the building is tilted within the allowable angle. , It is determined whether or not the building shape of the building fits in the land shape (S206).

As a result, if the building shape of the building does not fit in the land shape even within the allowable angle range set for the building, the building is treated as not satisfying the search condition.
On the other hand, in the processing of S205, when the building shape of the building fits in the land shape in a state where the tangential direction of the land and the road direction of the building match, and in the processing of S206, the allowable angle of the road direction of the building is set. If the building shape of the building fits in the land shape in the state of being tilted within the range of, it is determined that the building satisfies the search condition in the processing by the second discrimination function unit 113.

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

Next, the details of the above-mentioned processing of S103 will be described with reference to FIG.
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 predetermined land from the photographed image of the surrounding environment of the predetermined land (S301).
In response to this, the composition processing unit 13 synthesizes a 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 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 predetermined land (S303). That is, it identifies a predetermined object by identifying an object or place that may be reasonably considered to have a viewpoint because there may be a person such as a window or an outer staircase of a building built around the predetermined land. ..
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 be reasonably regarded as having a human viewpoint, and by setting such a virtual viewpoint, when a building is built on a predetermined land, it reaches the inside of the building. It is possible to grasp the direction and angle of the line of sight that is expected.

The first discrimination function unit 112 is based on the layout of the window stored in the building information storage unit 1C, and when the building is constructed on a predetermined land, the window of the building is viewed from the viewpoint as a virtual stance point outside the building. It is determined whether or not the direction and angle of the line of sight that reaches the inside of the building through the building is within the permissible range by comparing with a predetermined threshold value (S305).
As a result, if the direction and angle of the line of sight from the virtual viewpoint are within the permissible range, it is treated as satisfying the search condition.

On the other hand, in S305, when the direction and angle of the line of sight from the virtual viewpoint are not within the permissible range, the first discrimination function unit 112 has the window change permissible information stored in the building information storage unit 1C. As a result of changing the layout of the windows within the permissible range, the direction and angle of the line of sight that reaches the inside of the building from the virtual viewpoint is within the permissible range compared to the predetermined threshold. Discrimination (S306).
As a result, if the layout of the window is changed within the permissible range, and if the direction and angle of the line of sight from the virtual viewpoint are within the permissible range, it is treated as satisfying the search condition. On the other hand, even if the layout of the window is changed within the permissible range, if the direction and angle of the line of sight from the virtual viewpoint are not within the permissible range, it is treated as not satisfying the search condition.

● Display of Search Processing Results The results of the above search processing are presented, for example, by the example shown in FIG. The example of FIG. 17 shows the result of searching for a building that can be built on a predetermined land designated by a user on a predetermined website or terminal.
In this example, as buildings that can be built on a predetermined land, the top three buildings are listed in a list according to the recommended order set by the order setting unit 15. Each of the three buildings is displayed as three-dimensional images 101, 102, 103 arranged on a predetermined land, and one of the three-dimensional images 101, 102, 103 shown in a list is selected. Can be displayed larger in the enlarged display field 104. In the example of FIG. 17, the case where the three-dimensional image 101 is enlarged and displayed in the enlarged display field 104 is shown, and it can be seen that the three-dimensional image 101 shown in the list is selected by the dotted line display. It has become.

Each 3D image 101, 102, 103 is a building that can be built as a result of changing the setting direction and road direction of the building within the allowable range and / or changing the layout of the window of the building within the changeable range. In the case of a regarded three-dimensional image of a building, a composite three-dimensional image may be displayed with the setting direction, the road direction, and the layout of windows changed.
Further, the three-dimensional image 101 in the enlarged display field 104 can be rotated and displayed, enlarged / reduced, and the like by a predetermined operation, and can be viewed from various angles.

For each of the three-dimensional images 101, 102, 103, evaluation information 101a, 102a, 103a of the building divided into predetermined items is attached. The predetermined items are, for example, items that affect the purchase by the prospective purchaser of the predetermined land or building, such as budget, sunshine, publicity, floor plan, area, and feeling of openness. In the item of eyes, it is possible to grasp how much the viewpoint such as the amount of line of sight and the windows and balconies of other buildings exist in the vicinity, and in the item of openness, it is said that the houses are not crowded in the neighborhood. I can grasp it.
In this example, the qualitative evaluation of each item is indicated by the number of stars. For example, in the case of a budget, the lower the amount of money is, the higher the evaluation is, and in the case of sunshine, the larger the area on the building where the sunshine can be secured, the higher the evaluation. In addition, the smaller the amount of line of sight that reaches the inside of the building through the window of the building, the higher the evaluation is, depending on the direction and angle of the line of sight based on the virtual viewpoint.

The order of recommendation by the order setting unit 15 can be determined by the comprehensive evaluation of each item, or can be determined by any one or a plurality of evaluations of each item. Therefore, it is also possible to display the search results in the order of recommendation according only to the eyes, that is, the amount of the line of sight that reaches the inside of the building.
Further, the star marks constituting the evaluation information 101a, 102a, 103a shown in the example of FIG. 17 are examples, and may be composed of a bar graph, numerical values, or symbols or marks that can identify the evaluation contents.

Further, in this example, a car object 105 is prepared, and as shown in FIG. 18, an image is obtained in which the object 105 is appropriately arranged on a predetermined land and the car is parked on the premises. be able to. In this case, by preserving the three-dimensional image of the object 105, the composition processing unit 13 can synthesize the object 105 composed of the three-dimensional image into the three-dimensional image composed of a predetermined land and building.

By pressing the download button 106, the three-dimensional image 101 displayed in the enlarged display field 104 can be taken out as data in a predetermined format.
Further, when the "Display search result further" button 107 is pressed, the building searched by the search processing unit 11 is newly displayed based on a predetermined priority.

Notwithstanding this example, the synthesis processing unit 13 builds a building on a predetermined land, generates a three-dimensional image that integrally reflects the surrounding environment around the predetermined land, and generates the three-dimensional image. The image can be confirmed from any position inside or outside the building by a predetermined operation. It is also possible to display the virtual viewpoint set by the viewpoint setting function unit 111 in a three-dimensional image so that the appearance from the virtual viewpoint can be confirmed in the three-dimensional image. .. In addition, in order to be able to confirm the sunshine from a predetermined position, the starting point of the sunshine is set at a predetermined position, and the sunshine from the starting point is color-coded in the place where the sun is shining and the place where the sunshine is not shining. However, you can also make it possible to check the sunshine.

According to the real estate information retrieval device 1 according to the above embodiment, it is possible to grasp what kind of building can be built on a predetermined land by a concrete three-dimensional image. In addition, when a building is built on a predetermined land, it is possible to grasp how the line of sight reaches the inside of the building from outside the building, and it is preferable to build the building on the predetermined land based on the line of sight. Can be searched.

In the second embodiment of the present invention, a search for land where a predetermined building can be constructed and is suitable.
This second embodiment is realized by the real estate information retrieval device 1 having the same functional unit as that of the first embodiment. That is, also in this example, the real estate information search device 1 includes a land information storage unit 1A, a surrounding environment information storage unit 1B, a building information storage unit 1C, a search processing unit 11, a generation processing unit 12, a synthesis processing unit 13, and a specific processing unit. A functional block including a unit 14, an order setting unit 15, and a display processing unit 16 is configured. In this example, among the functions executed by each functional unit, the description of the function 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 building a predetermined building.
The 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 for a building in response to a search request from a searcher or a search request from a predetermined system. do.

The viewpoint setting function unit 111 sets a virtual viewpoint as a stance point to send a line of sight to the predetermined building when the predetermined building is built on the land with reference to the surrounding environment information storage unit 1B. .. The setting of the virtual viewpoint is the same as described above.

When a predetermined building is built on the land, the first discrimination function unit 112 has a direction and an angle of the line of sight that reaches the inside of the building through the window of the predetermined building from the viewpoint as a virtual stance point outside the building. The suitability of the land on which the predetermined building is to be built is determined by comparing with the predetermined threshold.

Further, the first determination function unit 112 determines the suitability of the land on which the predetermined building is to be built within the range of the layout in which the windows can be changed with reference to the building information storage unit 1C.
That is, when the position and size of the default window of a predetermined building are changed within a range that can be changed, the specific processing unit 14 described later changes the angle and direction of the line of sight that reaches the inside of the building from a virtual viewpoint. It is possible to identify whether it will change. Even if the default window position and size of a given building are not acceptable in comparison with a given threshold, the changed gaze angle and orientation will be used in comparison with the given threshold. When the angle and direction of the line of sight are allowed, the first discriminating function unit 112 determines that the land is suitable for constructing the predetermined building.

The second determination function unit 113 has basic information on the land stored in the land information storage unit 1A that matches the search conditions arbitrarily specified by the searcher or a predetermined system, and further, the searcher or Determine if the land conditions meet the building conditions of the given building specified by the given system.

When the second discrimination function unit 113 searches for land that matches the building conditions of a predetermined building, the land stored in the land information storage unit 1A is 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 fits in the land in a state where the land direction of the land and the set direction set for the predetermined building are matched. Further, when determining whether or not a predetermined building fits on the land, it is possible to determine whether or not the setting direction of the building fits in a state of being tilted within an allowable angle range.

Further, the second discrimination function unit 113 determines whether or not the predetermined building fits in the land stored in the land information storage unit 1A in a state where the tangential direction of the predetermined land and the road direction of the building match. Judge. When determining whether or not the predetermined building fits on the land, it is possible to further determine whether or not the road direction of the building fits in a state of being tilted within an allowable angle range.

-Synthesis processing unit 13
The compositing processing unit 13 synthesizes a three-dimensional image of a predetermined building with a three-dimensional image of the surrounding environment of the land, and generates a three-dimensional composite image in which the land and the predetermined building are integrally represented. Run.

-Specific processing unit 14
Based on the composite image generated by the composite processing unit 13, the specific processing unit 14 passes through the window of the predetermined building from the viewpoint as a virtual stance point outside the building when the predetermined building is constructed on the land. To identify the direction and angle of the line of sight that reaches the inside of the building.
Further, when the position and size of the default window of a predetermined building are changed within a range that can be changed, the specific processing unit 14 changes the direction and angle of the line of sight that reaches the inside of the building from a virtual viewpoint. It is also possible to specify.
In this example as well, the specific processing unit 14 sets the starting point of the sunshine incident on the building through the window at a predetermined position, and the direction of the sunshine incident on the predetermined building from the predetermined position. And the angle can be specified.

・ Order setting unit 15
The order setting unit 15 can set the recommended order of land by qualitative evaluation for each predetermined item or comprehensively considering the predetermined item for the search result of the land where the predetermined building can be constructed.

Also in this embodiment, a predetermined terminal configured to be communicable via a network such as the Internet is provided, and the execution result of the function provided in the real estate information retrieval device 1 can be obtained by the predetermined terminal.

● Process flow Next, a series of processes executed by the real estate information retrieval 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 search request for land on which the predetermined building can be built, as well as a designation of the predetermined building (S401).
In response to this, the search processing unit 11 refers to the land information storage unit 1A and the building information storage unit 1C by the second discrimination function unit 113, and based on the basic information and conditions of the predetermined building and land, the predetermined Search for land where a building can be built (S402).
Further, regarding the land narrowed down by the second discrimination function unit 113, the search processing unit 11 refers to the land information storage unit 1A and the building information storage unit 1C by the first discrimination function unit 112, and enters the building from outside the building. Search for land that can be judged to be able to appropriately build a predetermined building based on the line of sight that can be reached (S403).
As a result of the search process by the search process unit 11 described above, the land for which the construction of the predetermined building is determined to be appropriate is presented as the search result (S404).

In the above search process, the land to be searched was narrowed down by the second discrimination function unit 113, and then the land was further narrowed down by the first discrimination function unit 112. However, the first discrimination function unit 112 and the second discrimination function unit Regardless of whether the processing is performed by 113, the land to be searched may be narrowed down by the first discrimination function unit 112, and then the land may be further narrowed down by the second discrimination function unit 113.
In addition, the designation of a predetermined building is not limited to that by the user, and the real estate information retrieval device designates the predetermined building and designates the predetermined building in order to propose the land to the user as an advertisement on the predetermined website or the like. The building may require a search for buildable land.

Next, the details of the above-mentioned processing of S402 will be described with reference to FIG.
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). ). Further, the land having the land conditions suitable for the building conditions of the predetermined building is narrowed down (S502). Here, the information such as the building coverage ratio and the floor area ratio determined for each land is compared with the information such as the site area and the building area of each building, and the specified predetermined value without exceeding the restrictions such as the building coverage ratio and the floor area ratio. The land on which the building can be built is narrowed down.

Then, the second discrimination function unit 113 further fits the building shape of the predetermined building in the land shape in a state where the land direction of the land and the setting direction of the predetermined building are matched with respect to the land narrowed down as described above. Whether or not it is determined (S503).
In addition, if the building shape of the predetermined building does not fit in the land shape when the land direction of the land and the setting direction of the predetermined building are matched, the setting direction set for the predetermined building is allowed. By tilting the building within a possible angle range, it is determined whether or not the building shape of the predetermined building fits in the land shape (S504).

As a result, if the building shape of the predetermined building does not fit into the land shape even within the allowable angle range set for the predetermined building, the land is treated as not satisfying the search condition.
On the other hand, in the processing of S503, when the building shape of the predetermined building fits in the land shape in a state where the land direction of the land and the setting direction of the predetermined building match, and in the processing of S254, the predetermined building. If the building shape of the predetermined building fits into the land shape with the setting direction of the above tilted within the allowable angle range, the land shall satisfy the search condition in the processing by the second discrimination function unit 113. Judged.

Then, the second discrimination function unit 113 continues, with respect to the land narrowed down as described above, in a state where the tangential direction of the land and the road direction of the predetermined building match, the building shape of the predetermined building is added 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 into the land shape when the road direction of the land and the road direction of the predetermined building are matched, the road direction of the predetermined building is set to the allowable angle. It is determined whether or not the building shape of the predetermined building fits in the land shape in a state of being tilted within the range (S506).

As a result, if the building shape of the predetermined building does not fit into the land shape even within the allowable angle range set for the predetermined building, the land is treated as not satisfying the search condition.
On the other hand, in the processing of S505, when the building shape of the predetermined building fits in the land shape in a state where the road direction of the land and the road direction of the predetermined building are matched, and in the processing of S506, the predetermined building. If the building shape of the predetermined building fits into the land shape while the road direction is tilted within the allowable angle range, the land shall satisfy the search condition in the processing by the second discrimination function unit 113. Judged.

Processing based on the basic conditions in S501, processing based on the land conditions and building conditions in S502, processing based on the setting direction of the building and the land direction of the land in S503 and S504, and the contact between the road direction of the building and the land in S505 and S506. The order of the 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. Further, these processes may execute only one or a part of the processes.

Next, the details of the above-mentioned processing of S503 will be described 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 to be searched (S601).
In response to this, the composition processing unit 13 synthesizes a three-dimensional image of a predetermined building with a 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 as an object or place that may be reasonably considered to have a viewpoint because there may be a person such as a window or an outer staircase of a building built around the land.
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 be reasonably regarded as having a human viewpoint, and by setting such a virtual viewpoint, they reach the inside of the building when a predetermined building is built on the land. It is possible to grasp the direction and angle of the line of sight that is expected.

The first discrimination function unit 112 is based on the layout of the window stored in the building information storage unit 1C, and when a predetermined building is constructed on the land, the window of the building is viewed from the viewpoint as a virtual stance point outside the building. It is determined whether or not the direction and angle of the line of sight that reaches the inside of the building through the building are within the permissible range by comparing with a predetermined threshold value (S605).
As a result, if the direction and angle of the line of sight from the virtual viewpoint are within the permissible range, it is treated as satisfying the search condition.

On the other hand, in S605, when the direction and angle of the line of sight from the virtual viewpoint are not within the permissible range, the first discrimination function unit 112 has the window change permissible information stored in the building information storage unit 1C. As a result of changing the layout of the windows within the permissible range, the direction and angle of the line of sight that reaches the inside of the building from the virtual viewpoint is within the permissible range compared to the predetermined threshold. Discrimination (S606).
As a result, if the layout of the window is changed within the permissible range, and if the direction and angle of the line of sight from the virtual viewpoint are within the permissible range, it is treated as satisfying the search condition. On the other hand, even if the layout of the window is changed within the permissible range, if the direction and angle of the line of sight from the virtual viewpoint are not within the permissible range, it is treated as not satisfying the search condition.

According to the real estate information retrieval device 1 according to the above embodiment, it is possible to grasp what kind of land a predetermined building will be built on by a concrete three-dimensional image. In addition, when a building is built on land in a predetermined building, it is possible to grasp how the line of sight reaches the inside of the building from outside the building, and it is preferable to build the predetermined building based on the line of sight. Can be searched.

Also in this embodiment, the search processing result can be displayed or the three-dimensional image can be displayed as in the first embodiment.

Further, in the process of searching for a building or land according to the above embodiment of the present invention, when the land is wide and there is a degree of freedom in the arrangement of the building, the first discrimination function unit 112 may use the land condition, the building condition, and further. May simulate various building layouts to determine if the line of sight is within the permissible range, as long as the window layout changes are permissible.

Further, in the above embodiment of the present invention, a line-of-sight shield that can avoid the line of sight, such as a louver, a fence, a fence, a planting, an exterior, and a garage, is inserted into the three-dimensional image of the building on the site from outside the building. It may be possible to simulate how the line of sight can be avoided.
Further, when the first discriminating function unit 112 is provided with such a line-of-sight shield, it may be possible to determine whether the direction and angle of the line of sight reaching the inside of the building are within the permissible range.

In addition, information may be provided so that information on buildings, commercial facilities, etc. in the vicinity of the predetermined land can be grasped in the search results and the like.

Further, the evaluation (sunshine, publicity, openness, etc.) shown as the search result of the real estate information retrieval device 1 according to the above embodiment of the present invention may be reflected in the real estate price assessment. That is, the above evaluation is added as a calculation standard to the real estate price calculated from the real estate market price, the profit forecast, and the actual demand based on the information of the actual buying and selling desire. As a result, for example, indicators directly related to livability such as sunshine, publicity, and openness are reflected in the price, and a more appropriate assessment can be presented.

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 Synthesis processing unit 14 Specific processing unit 15 Order setting unit 16 Display processing unit

Claims (15)

A device that proposes a building that can be built on a given land.
A land information storage means that stores information about the predetermined land,
Surrounding environment information storage means that stores information related to the surrounding environment of the predetermined land, and
As information on the building to be built on the land, at least a building information storage means for storing window information related to the layout of windows in the building, and
It has a search processing means for searching for a candidate building to be built on the predetermined land.
The search processing means is
With reference to the surrounding environment information storage means, a viewpoint setting function unit that sets a virtual viewpoint as a stance point to send a line of sight to the building when a building is constructed on the predetermined land.
When a building is built on the predetermined land, it is compared with a predetermined threshold based on the direction and angle of the line of sight that reaches the inside of the building through the window of the building from the viewpoint as a virtual stance point outside the building. It is composed of a first discrimination function unit that determines the suitability of building construction.
Real estate information retrieval device. The building information storage means stores change permissible information relating to a changeable range for the layout of windows of the building.
The first discriminating function unit constituting the search processing means determines the suitability of building construction within the range of a layout that can be changed for the window with reference to the building information storage means.
The real estate information retrieval device according to claim 1. The building information storage means stores information related to the layout of buildings that can be adjusted according to the conditions of the land when the building is built on the land.
The search processing means further refers to the building information storage means, and is a second discrimination function unit that determines whether or not the building can be built within the range of arrangement that can be adjusted for the building according to the predetermined land condition. As a component,
The real estate information retrieval device according to claim 1 or 2. Further, it has an order setting means for setting a recommended order according to the amount of the line of sight reaching the inside of the building with respect to the search result of the building.
The real estate information retrieval device according to claim 2 or 3. Further, it has a compositing processing means for generating a composite image in which the three-dimensional image of the building is synthesized with respect to the three-dimensional image of the surrounding environment of the predetermined land.
The real estate information retrieval device according to any one of claims 1 to 4. Further having a generation processing means for generating a three-dimensional image of the surrounding environment of the predetermined land from the photographed image of the surrounding environment of the predetermined land.
The real estate information retrieval device according to claim 5. Based on the composite image, when the building is built on a predetermined land, the direction and angle of the line of sight that reaches the inside of the building through the window of the building are specified from the viewpoint as a virtual stance point outside the building. Further has specific processing means,
The real estate information retrieval device according to claim 5 or 6. 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 serves as a stance point for sending a line of sight to the building at the position where the predetermined object exists. Set the virtual viewpoint of
The real estate information retrieval device according to any one of claims 5 to 7. Further, the composite image has a first display processing means for displaying an image with a predetermined stance point as a virtual viewpoint.
The real estate information retrieval device according to any one of claims 5 to 8. In the composite image, the second display processing means for displaying the image in the building of the sunshine incident on the building through the window is further provided.
The real estate information retrieval device according to any one of claims 5 to 9. It is a method of proposing a building that can be built on a given land.
A land information storage means that stores information about the predetermined land,
Surrounding environment information storage means that stores information related to the surrounding environment of the predetermined land, and
A computer having, as information on a building to be built on the land, at least a building information storage means for storing window information related to the layout of windows in the building.
Execute a search process to search for a candidate building to be built on the predetermined land,
The search process is
When a building is built on the predetermined land with reference to the surrounding environment information storage means, a viewpoint setting process for setting a virtual viewpoint as a stance point for sending a line of sight to the building, and a viewpoint setting process.
When a building is built on the predetermined land, it is compared 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 window of the building from the viewpoint as a virtual stance point outside the building. It consists of a discrimination process that determines the suitability of the building's construction.
Real estate information search method. A computer program for proposing a building that can be built on a given land.
A land information storage means that stores information about the predetermined land,
Surrounding environment information storage means that stores information related to the surrounding environment of the predetermined land, and
For a computer having, as information on a building to be built on the land, at least a building information storage means for storing window information related to the layout of windows in the building.
The search process for searching for a candidate building to be built on the predetermined land is executed.
The search process is
When a building is built on the predetermined land with reference to the surrounding environment information storage means, a viewpoint setting process for setting a virtual viewpoint as a stance point for sending a line of sight to the building, and a viewpoint setting process.
When a building is built on the predetermined land, it is compared 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 window of the building from the viewpoint as a virtual stance point outside the building. It consists of a discrimination process that determines the suitability of the building's construction.
Computer program. It is a device that proposes land where a predetermined building can be built.
A land information storage means that stores information about the land,
Surrounding environment information storage means that stores information related to the surrounding environment of the land,
As the information of the predetermined building, at least a building information storage means for storing window information related to the layout of windows in the building, and
It has a search processing means for searching for land on which the predetermined building can be constructed.
The search processing means is
With reference to the surrounding environment information storage means, a viewpoint setting function unit that sets a virtual viewpoint as a stance point to send a line of sight to the building when the predetermined building is constructed on the land.
When the predetermined building is built on the land, it is compared with the predetermined threshold value based on the direction and angle of the line of sight that reaches the inside of the building through the window of the building from the viewpoint as a virtual stance point outside the building. It is composed of a discrimination function unit that determines whether or not the building is possible.
Real estate information retrieval device. It is a method of proposing land where a predetermined building can be built.
A land information storage means that stores information about the land,
Surrounding environment information storage means that stores information related to the surrounding environment of the land,
A computer having, as the information of the predetermined building, at least a building information storage means for storing window information related to the layout of windows in the building.
Execute a search process to search for land where the predetermined building can be built,
The search process is
A viewpoint setting process for setting a virtual viewpoint as a stance point for sending a line of sight to a building when the predetermined building is constructed on the land with reference to the surrounding environment information storage means.
When the predetermined building is built on the land, it is compared with the predetermined threshold value based on the direction and angle of the line of sight that reaches the inside of the building through the window of the building from the viewpoint as a virtual stance point outside the building. It is composed of a discrimination process that determines whether or not a building is possible.
Real estate information search method. A computer program for proposing land on which a given building can be built.
A land information storage means that stores information about the land,
Surrounding environment information storage means that stores information related to the surrounding environment of the land,
For a computer having, as the information of the predetermined building, at least a building information storage means for storing window information related to the layout of windows in the building.
The search process for searching for land where the predetermined building can be built is executed.
The search process is
A viewpoint setting process for setting a virtual viewpoint as a stance point for sending a line of sight to a building when the predetermined building is constructed on the land with reference to the surrounding environment information storage means.
When the predetermined building is built on the land, it is compared with the predetermined threshold value based on the direction and angle of the line of sight that reaches the inside of the building through the window of the building from the viewpoint as a virtual stance point outside the building. It is composed of a discrimination process that determines whether or not a building is possible.
Computer program.

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