CN113345044B - Household graph generation method and device - Google Patents
Household graph generation method and device Download PDFInfo
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- CN113345044B CN113345044B CN202110437596.1A CN202110437596A CN113345044B CN 113345044 B CN113345044 B CN 113345044B CN 202110437596 A CN202110437596 A CN 202110437596A CN 113345044 B CN113345044 B CN 113345044B
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/20—Drawing from basic elements, e.g. lines or circles
- G06T11/206—Drawing of charts or graphs
Abstract
The invention provides a method and a device for generating a house type graph, wherein the method comprises the following steps: acquiring a wall surface labeling result and a door and window labeling result of a room of a target house; and acquiring a first room structure corresponding to the room according to the wall surface labeling result, and acquiring a house type diagram of the target house according to the first room structure of the room of the target house and the door and window labeling result. According to the house type graph generating method and device, the wall surface labeling result and the door and window labeling result of the room of the target house are obtained, the first room structure corresponding to the room is obtained according to the wall surface labeling result, and the house type graph of the target house is obtained according to the first room structure and the door and window labeling result of the room of the target house, so that the house type graph is generated quickly, and the generation quality of the house type graph is improved.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a house type graph generating method and device.
Background
The conventional house type graph is obtained by manually drawing through manual measurement, but the workload of manual measurement is complex, and the house which normally enters the house is easily influenced by the shielding of objects, so that the measurement is inconvenient, and the efficiency of drawing the house type graph is low.
With the development of computer technology, there is a method for directly generating a two-dimensional house layout from a house three-dimensional model at present, but a complete house three-dimensional model needs to be obtained through scanning and the like, and the shielding of a wall by an object such as a cabinet and the like also affects the quality of the generated house layout.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a house type graph generation method and a house type graph generation device.
The invention provides a house type graph generating method, which comprises the following steps: acquiring a wall surface labeling result and a door and window labeling result of a room of a target house; and acquiring a first room structure corresponding to a room according to the wall surface labeling result, and acquiring a house type diagram of the target house according to the first room structure of the room of the target house and the door and window labeling result.
According to the house type graph generating method provided by the invention, the obtaining of the first room structure corresponding to the room according to the wall surface labeling result specifically comprises the following steps: and acquiring the position and the normal direction of a wall line according to the wall surface marking result, acquiring a wall line intersection point, and connecting adjacent wall lines by using the wall line intersection point, thereby obtaining the first room structure corresponding to the room.
According to the house type graph generating method provided by the invention, the obtaining of the house type graph of the target house according to the first room structure of the room of the target house and the door and window labeling result specifically comprises the following steps: performing direction correction on the wall line according to the first room structure of the room of the target house to obtain a second room structure of the room of the target house; combining inner wall lines according to the second room structure of the room of the target house, and/or combining outer wall lines according to the second room structure of the room of the target house to obtain a third room structure of the room of the target house; and projecting the door and window to a wall line according to the third room structure and the door and window labeling result, so as to obtain the house type diagram of the target house.
According to the house type graph generating method provided by the present invention, the performing direction correction on the wall line according to the first room structure of the room of the target house specifically includes: locally correcting a wall line direction of the first room structure of the room of the target house in units of the rooms of the target house; and after the local correction is finished, globally correcting the wall line direction of the first room structure of the room of the target house by taking the room of the target house as a whole.
According to a house type graph generating method provided by the present invention, the locally correcting the wall line direction of the first room structure of the room of the target house by taking the room of the target house as a unit specifically includes: according to the first room structure, a first local main direction and a second local main direction of a corresponding room are obtained; wherein the first and second local main directions are perpendicular; performing direction correction on a wall line in the room, which forms an included angle with the first local main direction or the second local main direction within a first preset angle threshold value, according to the first local main direction and the second local main direction; the globally correcting the wall line direction of the first room structure of the room of the target house with the room of the target house as a whole specifically includes: taking the room of the target house as a whole, and acquiring a first global main direction and a second global main direction of the target house; wherein the first global main direction and the second global main direction are perpendicular; and acquiring a room with an included angle between the first local main direction or the second local main direction and the first global main direction or the second global main direction within a preset second angle threshold, and performing direction correction on a wall line of the room according to the first local main direction or the second local main direction.
According to the house type graph generating method provided by the present invention, the performing direction correction on the wall line of the room according to the first local main direction or the second local main direction specifically includes: performing a rotation correction of the room in dependence of the first local main direction or the second local main direction.
According to the house type graph generating method provided by the present invention, the merging the inner wall lines according to the second room structure of the room of the target house specifically includes: obtaining a wall line matching result according to at least one of the direction of the wall lines, the distance between the wall lines and the overlap ratio of the wall lines; and merging the inner wall lines according to the wall line matching result.
According to the house type graph generating method provided by the invention, the projection of the door and window to the wall line is carried out according to the third room structure and the door and window labeling result, and the method specifically comprises the following steps: determining a wall line where the door and the window are located according to the door and window labeling result, and determining whether the door and the window are an indoor door and window or an entrance door or an outer window according to the wall line where the door and the window are located; for the indoor doors and windows, acquiring a door and window matching result according to at least one of the direction of the doors and the windows, the distance between the doors and the windows and the overlap ratio of the doors and the windows; combining doors and windows according to the door and window matching result, and projecting the doors and windows to the inner wall line in the third room structure according to the combined doors and windows; and for the entrance door and the outer window, directly projecting the door and the window to the outer wall line in the third room structure according to the door and window labeling results of the entrance door and the outer window.
According to the method for generating the house type graph, provided by the invention, the method further comprises the following steps: and converting the house type graph of the target house into a preset format for displaying.
The present invention also provides a house type graph generating apparatus, comprising: a labeling module to: acquiring a wall surface labeling result and a door and window labeling result of a room of a target house; a generation module to: and acquiring a first room structure corresponding to a room according to the wall surface labeling result, and acquiring a house type diagram of the target house according to the first room structure of the room of the target house and the door and window labeling result.
The present invention also provides an electronic device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps of the house pattern generation method according to any one of the above.
The invention also provides a non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the house pattern generation method as described in any one of the above.
According to the house type graph generating method and device, the wall surface labeling result and the door and window labeling result of the room of the target house are obtained, the first room structure corresponding to the room is obtained according to the wall surface labeling result, and the house type graph of the target house is obtained according to the first room structure and the door and window labeling result of the room of the target house, so that the house type graph is generated quickly, and the generation quality of the house type graph is improved.
Drawings
In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flow chart of a house type diagram generation method provided by the present invention;
FIG. 2 is a schematic view of an original wall line and a door/window in the house type diagram generation method according to the present invention;
FIG. 3 is a schematic diagram of a partially corrected rear wall of a room in the house layout generation method according to the present invention;
FIG. 4 is a schematic diagram of a house global correction back wall line in the house type graph generation method provided by the present invention;
FIG. 5 is a schematic diagram of a house interior wall line merged back wall line in the house layout generation method provided by the present invention;
FIG. 6 is a schematic diagram of a merged back wall line of an external wall line of a house in the house type graph generating method provided by the present invention;
FIG. 7 is a schematic diagram of a house after doors and windows are combined and projected in the house type diagram generation method provided by the invention;
FIG. 8 is a final user type diagram sample presentation in the user type diagram generation method provided by the present invention;
FIG. 9 is a schematic structural diagram of a house layout generating apparatus provided in the present invention;
fig. 10 is a schematic structural diagram of an electronic device provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The house type graph generating method and device of the present invention are described below with reference to fig. 1 to 10.
Fig. 1 is a schematic flow chart of a house type diagram generation method provided by the present invention. As shown in fig. 1, the method includes:
The method can utilize radar scanners carried by mobile terminals such as smart phones and tablet computers to scan walls and doors and windows, and can carry out wall labeling and door and window labeling of rooms of a target house in the scanning process, and can combine software tools to process to obtain wall labeling results and door and window labeling results of the rooms of the target house. The wall surface labeling result may include a three-dimensional coordinate and a normal direction of a point on the wall surface, or may include a two-dimensional coordinate and a normal direction of a point on the wall surface, or may include three-dimensional coordinates of two points on the wall surface, or may include two-dimensional coordinates of two points on the wall surface. A point on the wall surface may be an optional point on the wall surface. The two points on the wall surface can be two optional points on the wall surface. The door and window labeling result may include three-dimensional coordinates of each point on both sides of the door and window, or may include two-dimensional coordinates of each point on both sides of the door and window.
In the embodiment of the invention, the house type graph is a two-dimensional house type graph, the doors and the windows and the walls are embodied in the two-dimensional house type graph as orthographic projections of the doors and the windows on the horizontal plane, and the originally acquired wall surface labeling result and the door and window labeling result can be projected on the horizontal plane and converted into two-dimensional information, so that the house type graph is obtained. Wherein, the horizontal plane is a plane parallel to the ground of the house.
For example, when the wall surface labeling result is the three-dimensional coordinate and the normal direction of a point on the wall surface, the three-dimensional coordinate and the normal direction are projected onto the horizontal plane, so that the projection and the normal direction of a point on the wall surface on the horizontal plane can be obtained, and then the projection of a point on the wall surface on the horizontal plane and a straight line perpendicular to the normal line are the wall line, so that the position and the normal direction of the wall line can be determined. The position and orientation of the wall line may represent the position and orientation of the wall surface. When the wall surface labeling result is the three-dimensional coordinates of two points on the wall surface, the three-dimensional coordinates of the two points are projected on a horizontal plane, and a connecting line passing through the projection of the two points is a wall line, so that the position and the normal direction of the wall line can be determined. The door and window labeling result can comprise three-dimensional coordinates of each point on two sides of the door and window. The three-dimensional coordinates of the two sides of the door and the window are projected on a horizontal plane, so that the position and the direction of the door and the window can be obtained. In addition, since the house-type map is obtained by projection on the horizontal plane, only two-dimensional coordinates of a wall surface point or only two-dimensional coordinates of a point on the door or window can be obtained.
The position and the orientation of the wall surface can be obtained according to the wall surface labeling result, and the position and the direction of the door and the window can be obtained according to the door and window labeling result.
And 102, acquiring a first room structure corresponding to a room according to the wall surface labeling result, and acquiring a house type diagram of the target house according to the first room structure of the room of the target house and the door and window labeling result.
And obtaining wall surface labeling results of all wall surfaces of the room, and obtaining a first room structure corresponding to the room according to the wall surface labeling results of all the wall surfaces of the room. And acquiring a house type graph of the target house according to the first room structure and the door and window labeling result of the room of the target house. The first room structure may include information on the position, length, etc. of the wall surfaces of the room. The information such as the position, the size and the like of the door and window of the wall surface can be obtained according to the door and window labeling result, so that the information of the wall surface and the door and window of the room can be obtained according to the first room structure and the door and window labeling result of the room, and the house type diagram of the target house can be obtained according to the first room structure of each room of the target house. Fig. 2 is a schematic diagram of an original wall line and a door/window in the house type diagram generation method provided by the invention.
The invention aims to mark the positions of walls and doors and windows in a simple mode by using a SLAM (Simultaneous Localization and Mapping) technology through terminals such as a mobile phone and a tablet personal computer, and then calculating to obtain a house type diagram. The required input of the invention is the label of each wall and each door and window in each room, wherein the label of each wall is the three-dimensional coordinate of one point on the wall surface and the normal direction of the wall surface, thus the acquisition can be completed only by aiming at the part of the wall surface which is not shielded by other objects, and the integrity of the whole wall is not required to be ensured; the marking mode of each door and window is that a three-dimensional point is respectively taken at the left side and the right side of each door and window, and the range of the orthographic projection of the door and window on a plane parallel to the ground of the house can be determined by the two points. After the position and the direction of the wall surface and the range of the door and the window are determined, the house type graph can be generated. According to the house type graph generating method, the wall surface labeling result and the door and window labeling result of the room of the target house are obtained, the first room structure corresponding to the room is obtained according to the wall surface labeling result, and the house type graph of the target house is obtained according to the first room structure and the door and window labeling result of the room of the target house, so that the house type graph is generated quickly, and the generation quality of the house type graph is improved.
According to the house type graph generating method provided by the invention, the obtaining of the first room structure corresponding to the room according to the wall surface labeling result specifically comprises the following steps: and acquiring the position and the normal direction of a wall line according to the wall surface marking result, acquiring a wall line intersection point, and connecting adjacent wall lines by using the wall line intersection point, thereby obtaining the first room structure corresponding to the room.
The wall surface labeling result can comprise a three-dimensional coordinate and a normal direction of one point on the wall surface, the originally collected wall surface labeling result is projected onto a horizontal plane and converted into two-dimensional information, and all subsequent processing can be calculated on a two-dimensional plane. The method comprises the steps of projecting a wall surface labeling result onto a horizontal plane to obtain the position and the normal direction of a wall surface corresponding to the wall surface, calculating the intersection point of each room and two adjacent wall lines by using the position and the normal direction of the wall line, directly solving the intersection point if the wall surface is scanned according to the wall surface connection sequence, solving the optimal solution of a single room according to certain constraint if the wall surface is scanned in an unordered mode, obtaining a polygon for representing the wall surface condition of the room in each room, and taking the obtained polygon as a first room structure corresponding to the room.
The wall line length can also be obtained by utilizing the wall line intersection point, so that a house type graph with the measured value can be obtained.
According to the house type graph generating method, the wall lines and the wall line intersection points are obtained according to the wall surface labeling result, and the wall line intersection points are used for connecting the adjacent wall lines, so that the first room structure corresponding to the room is obtained, and the first room structure is rapidly obtained.
According to the house type graph generating method provided by the invention, the obtaining of the house type graph of the target house according to the first room structure of the room of the target house and the door and window labeling result specifically comprises the following steps: performing direction correction on the wall line according to the first room structure of the room of the target house to obtain a second room structure of the room of the target house; combining inner wall lines according to the second room structure of the room of the target house, and/or combining outer wall lines according to the second room structure of the room of the target house to obtain a third room structure of the room of the target house; and performing projection of doors and windows to a wall line according to the third room structure and the door and window labeling result, thereby obtaining the house type diagram of the target house.
The wall lines in the room are generally horizontal, flat and vertical, but strictly vertical or parallel wall lines cannot be directly obtained due to the existence of errors during collection. In order to optimize the generated house type graph, firstly, the direction of the wall line is corrected according to the first room structure of the room of the target house, and the second room structure of the room of the target house is obtained.
Since each room is individually collected at the time of collection, for an inner wall line (indoor wall), it is collected twice in an adjacent room. For the outer wall line, the outer wall lines of different rooms on the same side are generally consistent, but slight deviations may exist after the outer wall lines are respectively collected in different rooms. Therefore, after the direction correction, the combination of the inner wall line and the outer wall line can be further performed. For interior wall lines, the combination is performed by finding matching interior wall lines (i.e., wall lines common to adjacent rooms), and for exterior wall lines, the combination may be performed by finding substantially collinear exterior wall lines. At present, some houses do not have interior wall lines, and then do not need to carry out the combination of interior wall lines. If the outer wall lines are collinear, the combination of the outer wall lines is not needed. And combining the inner wall lines according to the second room structure of the room of the target room, and/or combining the outer wall lines according to the second room structure of the room of the target room to obtain a third room structure of the room of the target room.
Fig. 5 is a schematic diagram of a house interior wall line and a rear wall line merged in the house type graph generation method provided by the present invention. Fig. 6 is a schematic diagram of a house exterior wall line and a merged back wall line in the house type graph generation method provided by the invention.
The third room structure after the direction correction of the wall lines, the combination of the inner wall lines and the combination of the outer wall lines is a comparatively regular house type diagram, and the door and window structure is not marked in the house type diagram at this time. And further, based on a third room structure, utilizing a door and window labeling result to perform projection from a door and a window to a wall line, thereby obtaining a house type graph of the target house.
According to the house type graph generation method provided by the invention, the second room structure is obtained after the direction of the first room structure is corrected, the third room structure is obtained by combining the inner wall lines and/or the outer wall lines of the second room structure, and the projection from the door and the window to the wall lines is carried out according to the third room structure and the door and window labeling result, so that the house type graph of the target house is obtained, and the generation quality of the house type graph is improved.
According to the house type graph generating method provided by the present invention, the performing direction correction on the wall line according to the first room structure of the room of the target house specifically includes: locally correcting a wall line direction of the first room structure of the room of the target house in units of the rooms of the target house; and after the local correction is finished, globally correcting the wall line direction of the first room structure of the room of the target house by taking the room of the target house as a whole.
The directional correction of the wall line according to the first room configuration of the room of the target house can be performed in two steps. The first room configuration of a room may be locally corrected first in units of rooms. When the first room structure of a room is partially corrected on a room-by-room basis, the direction correction of the wall line is independent for each room.
After the local correction is completed, the wall lines of the independent rooms can be horizontally and vertically arranged (except for special house types), but the rooms may not be consistent in the direction of the wall lines from room to room as a whole, so that further global correction is needed. In the global correction, the wall line direction of the first room structure of the room of the target house is corrected with respect to the whole room of the target house.
According to the house type graph generation method provided by the invention, local correction is firstly carried out, so that the optimization of the wall line direction of each single room is realized, and on the basis, global correction is further carried out, so that a better correction effect is realized.
According to a house type graph generating method provided by the present invention, the locally correcting the wall line direction of the first room structure of the room of the target house by taking the room of the target house as a unit specifically includes: acquiring a first local main direction and a second local main direction of a corresponding room according to the first room structure; wherein the first and second local main directions are perpendicular; performing direction correction on a wall line in the room, which forms an included angle with the first local main direction or the second local main direction within a first preset angle threshold value, according to the first local main direction and the second local main direction; the globally correcting the wall line direction of the first room structure of the room of the target house with the room of the target house as a whole specifically includes: taking the room of the target house as a whole, and acquiring a first global main direction and a second global main direction of the target house; wherein the first global main direction and the second global main direction are perpendicular; and acquiring a room with an included angle between the first local main direction or the second local main direction and the first global main direction or the second global main direction within a preset second angle threshold, and performing direction correction on a wall line of the room according to the first local main direction or the second local main direction.
Fig. 3 is a schematic diagram of a partially corrected rear wall line of a room in the house type diagram generation method provided by the invention. When the wall line direction of the first room structure of the room of the target house is partially corrected in units of the rooms of the target house, first, a first local main direction and a second local main direction of the corresponding room are acquired according to the first room structure. The first and second local main directions refer to two mutually perpendicular main directions of a wall line of a room. The wall line in the room close to the first local main direction or the second local main direction is directionally corrected in dependence on the first local main direction and the second local main direction so as to be exactly in the first local main direction or the second local main direction. The other wall wires remain in the original position. The wall line intersection is recalculated after correction.
Fig. 4 is a schematic diagram of a house global correction back wall line in the house type graph generation method provided by the present invention. After the local correction is finished, taking the room of the target house as a whole, and when the wall line direction of the first room structure of the room of the target house is corrected globally, taking the room of the target house as a whole, and acquiring the first global main direction and the second global main direction of all rooms of the target house; the first global main direction and the second global main direction refer to two mutually perpendicular main directions of a wall line of the target house. And acquiring a room with the first local main direction or the second local main direction close to the first global main direction or the second global main direction, and performing direction correction on the wall line of the room according to the first local main direction or the second local main direction. Such that the first local main direction or the second local main direction is aligned with the first global main direction or the second global main direction. After global correction, the wall line intersection is recalculated.
According to the house type graph generation method provided by the invention, the wall lines are subjected to local correction by extracting the first local main direction and the second local main direction, and the wall lines are subjected to global correction by extracting the first global main direction and the second global main direction, so that the generation quality of the house type graph is further improved.
According to the house type graph generating method provided by the present invention, the performing direction correction on the wall line of the room according to the first local main direction or the second local main direction specifically includes: performing a rotation correction of the room in dependence of the first local main direction or the second local main direction.
When the wall line of the room is corrected in direction according to the first or second local main direction, this can be achieved by a rotational correction of the room according to the first or second local main direction. E.g. rotating the room around the set point according to the first or second local main direction such that the first or second local main direction is aligned with the first or second global main direction. Wherein the set point comprises the center of gravity or center of the room.
According to the house type graph generating method provided by the invention, the room is subjected to rotation correction according to the first local main direction or the second local main direction, so that the generating efficiency of the house type graph is improved.
According to the house type graph generating method provided by the invention, the merging of the inner wall lines according to the second room structure of the room of the target house specifically comprises the following steps: obtaining a wall line matching result according to at least one of the direction of the wall lines, the distance between the wall lines and the overlap ratio of the wall lines; and merging the inner wall lines according to the wall line matching result.
The interior wall lines that need to be merged are wall lines that are common in adjacent rooms and are collected in both adjacent rooms, and this pair of wall lines may be referred to as matching wall lines. The matching interior wall lines need to be merged. The wall line matching result can be obtained according to at least one of the direction of the wall lines, the distance between the wall lines and the overlap ratio of the wall lines; according to the wall line matching result, the inner wall lines are grouped, and each group represents the inner wall lines which should be positioned on a straight line. And (5) solving the merged straight line, and projecting all the wall line end points in the group onto the straight line to update the wall line position. For two adjacent groups of inner wall lines, after one group of inner wall lines is combined, the other group of inner wall lines can be combined on the basis.
According to the house type graph generating method provided by the invention, a wall line matching result is obtained according to at least one of the direction of the wall lines, the distance between the wall lines and the overlap ratio of the wall lines; and the inner wall lines are combined according to the wall line matching result, so that the generation quality of the house pattern is further improved.
According to the house type graph generating method provided by the invention, the projection of the door and window to the wall line is carried out according to the third room structure and the door and window labeling result, and the method specifically comprises the following steps: determining a wall line where the door and the window are located according to the door and window labeling result, and determining whether the door and the window are an indoor door and window or an entrance door or an outer window according to the wall line where the door and the window are located; for the indoor doors and windows, acquiring a door and window matching result according to at least one of the direction of the doors and the windows, the distance between the doors and the windows and the overlap ratio of the doors and the windows; combining doors and windows according to the door and window matching result, and projecting the doors and windows to the inner wall line in the third room structure according to the combined doors and windows; and for the entrance door and the outer window, directly projecting the door and the window to the outer wall line in the third room structure according to the door and window labeling results of the entrance door and the outer window.
The indoor door and window refers to a door and window between adjacent rooms in the target house, and the indoor door and window is arranged on an inner wall of the target house. The exterior window refers to a window between an exterior space and an interior space of a target house, and is disposed on an exterior wall of the target house.
Firstly, determining a wall line where the door and the window are located according to the door and window labeling result, namely matching the door and the window to the wall line. For each door and window, the matched wall line is searched in the corresponding room according to a certain mode, for example, the requirements that the wall line direction is parallel to the door and window direction, the door and window is close to the wall line, the projection overlap ratio of the door and window and the wall line is high and the like need to be met. The direction of the door and window can be obtained based on the information of the three-dimensional points collected at the left side and the right side of the door and window in the door and window labeling result. According to the door and window labeling result, the door and window can be matched with the wall line based on the wall line in the third room structure, and the door and window can also be matched with the wall line based on the wall line in the first room structure or the second room structure.
Since the windows and doors present in each room are labeled, except for the entrance door, all other doors are labeled twice in the adjacent rooms that are connected, and all the windows are collected twice. Therefore, after the matching result of the door and window to the wall line is obtained, the matching door and window of the door and window in the adjacent room is found through calculation of the direction, the distance, the projection contact ratio and the like, the door and window matching result is obtained, door and window combination is carried out according to the door and window matching result, the projection of the door and window to the inner wall line is carried out according to the combined door and window, and a door and window line segment is obtained.
For the entrance door and the outer window, as no matching exists, the projection from the door and the window to the outer wall line is directly carried out according to the door and window labeling result, and a door and window line segment is obtained.
Fig. 7 is a schematic diagram of a house after doors and windows are combined and projected in the house type diagram generation method provided by the invention. Fig. 8 is a final user type diagram display example in the user type diagram generation method provided by the present invention.
According to the house type graph generation method, the wall line where the door and the window are located is obtained, whether the door and the window are an indoor door and a outdoor door and window is determined, the door and the window are combined after the matching result of the door and the window is obtained for the indoor door and the window, then projection from the door and the window to the inner wall line is carried out, and the generation quality of the house type graph is further improved for direct projection of the entrance door and the outer window.
According to the house type graph generating method provided by the invention, the method further comprises the following steps: and converting the house type graph of the target house into a preset format for displaying.
After the house type diagram of the target house is obtained, the house type diagram of the target house can be converted into a preset format for displaying, for example, converted into an svg vector diagram for displaying.
According to the house type graph generating method provided by the invention, the house type graph of the target house is converted into the preset format for displaying, so that the flexibility of house type displaying is improved.
The flow of the house layout generating method provided by the present invention is further described by an embodiment with reference to fig. 2 to 8.
The invention provides a house type graph generating method, which comprises the following steps:
1. and reading in original data and calculating the endpoint of the wall wire.
Firstly, three-dimensional position and direction information which is originally collected is projected on a horizontal plane and is converted into two-dimensional information, and then all the subsequent processing is calculated on the two-dimensional plane. Then, the intersection point of each room and the adjacent wall lines at two ends is calculated by using the position and the normal direction of the wall line, if the intersection point can be directly solved by scanning according to the wall connection sequence, if the intersection point is scanned out of order, the optimal solution of a single room is solved according to certain constraint, and each room can obtain a polygon in this way, as shown in fig. 2. In fig. 2, the parentheses indicate the positions of the doors, and the square parentheses indicate the positions of the windows.
2. And calculating the wall line where the door and the window are located.
For each door and window, the matched wall line is searched in the corresponding room according to a certain mode, for example, the requirements that the wall line direction is parallel to the door and window direction, the door and window is close to the wall line, the projection overlap ratio of the door and window and the wall line is high and the like need to be met.
3. And calculating door-door, window-window and wall-wall matching.
Because the wall surface and the appearing doors and windows in each room are marked, except the entrance door, all other indoor doors are marked twice in the front and back of the adjacent communicated rooms, and all the inner walls and the indoor windows are collected twice in the front and back. The step is to search the matching doors and windows of the doors and windows in the adjacent rooms by calculating the direction, the distance, the projection contact ratio and the like, and calculate the matching between the interior wall lines in a similar way.
4. The sub-rooms are independently vertically corrected (local correction) for the wall lines in each room.
The wall lines in the room are generally horizontal, flat and vertical, but strictly vertical or parallel wall lines cannot be directly obtained due to errors during collection. This step extracts two perpendicular main directions of the wall lines in the room, corrects the wall line close to the main direction so that it lies exactly in the main direction, the other wall lines remaining in the original position. The wall line intersection is recalculated after the correction to update the wall line endpoint. The effect of the wall lines of each room after the local correction is shown in fig. 3.
5. The main directions of all rooms are globally corrected.
After the local correction of the previous step, the local 'horizontal and vertical' can be ensured by the wall in the main direction in each room. This step extracts the global principal direction of the local principal directions of all rooms, and then rotates each room located in the global principal direction around its center of gravity to align with the global principal direction. The effect of the wall lines of each room after global correction is shown in fig. 4.
6. And combining the house inner wall lines.
And (4) according to the inner wall matching obtained by the calculation in the step (3), grouping the inner wall lines, wherein each group represents the inner wall lines which should be positioned on a straight line. And (5) solving the merged straight line, and projecting all the wall line end points in the group onto the straight line to update the wall line position. The interior wall line merged back wall line effect is shown in fig. 5.
7. And combining the house outer wall lines.
The outer wall lines of different rooms on the same side are generally consistent, but slight deviations may exist after the outer wall lines are respectively collected in different rooms. This step looks for substantially collinear wall lines, groups them and merges them. The effect of the wall line after adjusting the outer wall line is shown in fig. 6, where the circled position is changed significantly.
8. And combining the doors and the windows and projecting the doors and the windows onto the corresponding wall lines to obtain door and window line segments.
And (3) combining a pair of matched doors or windows into one based on the non-entrance door matching (door-door matching) and the inner window matching (window-window matching) obtained by calculation in the step (3), and then projecting the combined pair of matched doors or windows onto the matched wall surface to obtain the position of a door or window line segment. For the entrance door and the exterior window, since there is no match, the projection is direct. The resulting positions of the reveal segments are shown in fig. 7, where the parentheses indicate the two ends of the door and the square brackets indicate the two ends of the window.
9. Converted to the desired format for presentation. One such converted display is shown in figure 8.
The house type graph generation method provided by the invention obtains a final house type graph through reading in original data of wall surface labeling results and door and window labeling results, and through calculation of intersection relations between wall surfaces, door and window matching relations and the like and optimization, wherein the house type graph is composed of line segments and comprises wall surface line segments and door and window line segments. The house type graph in the form of line segments can be converted into any required form for final effect display.
The house type graph generating device provided by the invention is described below, and the house type graph generating device described below and the house type graph generating method described above can be referred to correspondingly.
Fig. 9 is a schematic structural diagram of a house type diagram generation device provided by the present invention. As shown in fig. 9, the house type graph generating apparatus provided by the present invention includes a labeling module 10 and a generating module 20, wherein: the labeling module 10 is configured to: acquiring a wall surface labeling result and a door and window labeling result of a room of a target house; the generation module 20 is configured to: and acquiring a first room structure corresponding to a room according to the wall surface labeling result, and acquiring a house type diagram of the target house according to the first room structure of the room of the target house and the door and window labeling result.
According to the house type graph generating device, the wall surface labeling result and the door and window labeling result of the room of the target house are obtained, the first room structure corresponding to the room is obtained according to the wall surface labeling result, and the house type graph of the target house is obtained according to the first room structure and the door and window labeling result of the room of the target house, so that the house type graph is generated quickly, and the generation quality of the house type graph is improved.
According to the house type graph generating apparatus provided by the present invention, when the generating module 20 is configured to obtain the first room structure corresponding to the room according to the wall surface labeling result, specifically: and acquiring the position and the normal direction of a wall line according to the wall surface marking result, acquiring a wall line intersection point, and connecting adjacent wall lines by using the wall line intersection point, thereby obtaining the first room structure corresponding to the room.
According to the house type graph generating device, the wall lines and the wall line intersection points are obtained according to the wall surface labeling result, and the wall line intersection points are used for connecting the adjacent wall lines, so that the first room structure corresponding to the room is obtained, and the first room structure is rapidly obtained.
According to the device for generating a house type graph provided by the present invention, when the generating module 20 is configured to obtain the house type graph of the target house according to the first room structure of the room of the target house and the door and window labeling result, it is specifically configured to: performing direction correction on the wall line according to the first room structure of the room of the target house to obtain a second room structure of the room of the target house; combining inner wall lines according to the second room structure of the room of the target house, and/or combining outer wall lines according to the second room structure of the room of the target house to obtain a third room structure of the room of the target house; and performing projection of doors and windows to a wall line according to the third room structure and the door and window labeling result, thereby obtaining the house type diagram of the target house.
According to the house type graph generating device, the second room structure is obtained after the direction of the first room structure is corrected, the inner wall line combination and/or the outer wall line combination are/is carried out on the second room structure to obtain the third room structure, and the projection from the door and the window to the wall line is carried out according to the third room structure and the door and window labeling result, so that the house type graph of the target house is obtained, and the generation quality of the house type graph is improved.
According to the house type graph generating apparatus provided by the present invention, the generating module 20, when being configured to perform the direction correction on the wall line according to the first room structure of the room of the target house, is specifically configured to: locally correcting a wall line direction of the first room structure of the room of the target house in units of the rooms of the target house; and after the local correction is finished, globally correcting the wall line direction of the first room structure of the room of the target house by taking the room of the target house as a whole.
The house type graph generating device provided by the invention realizes the optimization of the wall line direction of each single room by firstly carrying out local correction, and further carries out global correction on the basis of the optimization, thereby realizing better correction effect.
According to the house type map generating apparatus provided by the present invention, the generating module 20, when being configured to locally correct the wall line direction of the first room structure of the room of the target house by taking the room of the target house as a unit, is specifically configured to: acquiring a first local main direction and a second local main direction of a corresponding room according to the first room structure; wherein the first local main direction and the second local main direction are perpendicular; performing direction correction on a wall line in the room, which forms an included angle with the first local main direction or the second local main direction within a first preset angle threshold value, according to the first local main direction and the second local main direction; the generating module 20 is specifically configured to, when the generating module is configured to globally correct the wall line direction of the first room structure of the room of the target house with the room of the target house as a whole: taking the room of the target house as a whole, and acquiring a first global main direction and a second global main direction of the target house; wherein the first global main direction and the second global main direction are perpendicular; and acquiring a room with an included angle between the first local main direction or the second local main direction and the first global main direction or the second global main direction within a preset second angle threshold, and performing direction correction on a wall line of the room according to the first local main direction or the second local main direction.
According to the house type graph generating device, the wall lines are subjected to local correction through extracting the first local main direction and the second local main direction, and the wall lines are subjected to global correction through extracting the first global main direction and the second global main direction, so that the generation quality of the house type graph is further improved.
According to the house type graph generating apparatus provided by the present invention, when the generating module 20 is configured to perform the direction correction on the wall line of the room according to the first local main direction or the second local main direction, it is specifically configured to: performing a rotation correction of the room in dependence of the first local main direction or the second local main direction.
The house type graph generating device provided by the invention improves the generating efficiency of the house type graph by performing rotation correction on the room according to the first local main direction or the second local main direction.
According to the house type graph generating apparatus provided by the present invention, when the generating module 20 is configured to merge the inner wall lines according to the second room structure of the room of the target house, it is specifically configured to: obtaining a wall line matching result according to at least one of the direction of the wall lines, the distance between the wall lines and the overlap ratio of the wall lines; and merging the inner wall lines according to the wall line matching result.
The house type graph generating device provided by the invention obtains the wall line matching result according to at least one of the direction of the wall lines, the distance between the wall lines and the overlap ratio of the wall lines; and the inner wall lines are combined according to the wall line matching result, so that the generation quality of the house pattern is further improved.
According to the house type graph generating device provided by the present invention, when the generating module 20 is used for performing the projection from the door and window to the wall line according to the third room structure and the door and window labeling result, it is specifically used for: determining a wall line where the door and the window are located according to the door and window labeling result, and determining whether the door and the window are an indoor door and window or an entrance door or an outer window according to the wall line where the door and the window are located; for the indoor doors and windows, acquiring a door and window matching result according to at least one of the direction of the doors and the windows, the distance between the doors and the windows and the overlap ratio of the doors and the windows; combining doors and windows according to the door and window matching result, and projecting the doors and windows to the inner wall line in the third room structure according to the combined doors and windows; and for the entrance door and the outer window, directly projecting the door and the window to the outer wall line in the third room structure according to the door and window labeling results of the entrance door and the outer window.
According to the house type graph generating device, whether the door and window is an indoor door and window or an outdoor door and window is determined by obtaining the wall line where the door and window is located, the door and window matching results are obtained for the indoor door and window, then the door and window are combined and projected to the inner wall line, the door and window is directly projected, and the generation quality of the house type graph is further improved.
According to an apparatus for generating a house type graph provided by the present invention, the generating module 20 is further configured to: and converting the house type graph of the target house into a preset format for displaying.
The house type graph generating device provided by the invention has the advantages that the house type graph of the target house is converted into the preset format for displaying, and the flexibility of house type displaying is improved.
Fig. 10 is a schematic structural diagram of an electronic device provided in the present invention, and as shown in fig. 10, the electronic device may include: a processor (processor)1010, a communication Interface (Communications Interface)1020, a memory (memory)1030, and a communication bus 1040, wherein the processor 1010, the communication Interface 1020, and the memory 1030 communicate with each other via the communication bus 1040. Processor 1010 may invoke logic instructions in memory 1030 to perform a house pattern generation method comprising: acquiring a wall surface labeling result and a door and window labeling result of a room of a target house; the wall surface labeling result comprises a three-dimensional coordinate and a normal direction of one point on the wall surface; the door and window labeling result comprises three-dimensional coordinates of each point on two sides of the door and window; and acquiring a first room structure corresponding to a room according to the wall surface labeling result, and acquiring a house type diagram of the target house according to the first room structure of the room of the target house and the door and window labeling result.
Furthermore, the logic instructions in the memory 1030 can be implemented in software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiment of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the house pattern generation method provided by the above methods, the method comprising: acquiring a wall surface labeling result and a door and window labeling result of a room of a target house; the wall surface labeling result comprises a three-dimensional coordinate and a normal direction of one point on the wall surface; the door and window labeling result comprises three-dimensional coordinates of each point on two sides of the door and window; and acquiring a first room structure corresponding to a room according to the wall surface labeling result, and acquiring a house type diagram of the target house according to the first room structure of the room of the target house and the door and window labeling result.
In yet another aspect, the present invention also provides a non-transitory computer-readable storage medium having stored thereon a computer program, which when executed by a processor is implemented to perform the above-provided house pattern generation methods, the method comprising: acquiring a wall surface labeling result and a door and window labeling result of a room of a target house; the wall surface labeling result comprises a three-dimensional coordinate and a normal direction of a point on the wall surface; the door and window labeling result comprises three-dimensional coordinates of each point on two sides of the door and window; and acquiring a first room structure corresponding to a room according to the wall surface labeling result, and acquiring a house type diagram of the target house according to the first room structure of the room of the target house and the door and window labeling result.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment may be implemented by software plus a necessary general hardware platform, and may also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (11)
1. A house type graph generating method is characterized by comprising the following steps:
acquiring a wall surface labeling result and a door and window labeling result of a room of a target house;
acquiring a first room structure corresponding to a room according to the wall surface labeling result, and acquiring a house type diagram of the target house according to the first room structure of the room of the target house and the door and window labeling result;
the obtaining of the first room structure corresponding to the room according to the wall surface labeling result specifically includes:
obtaining the position and normal direction of a wall line according to the wall surface marking result, obtaining a wall line intersection point, and connecting adjacent wall lines by using the wall line intersection point so as to obtain the first room structure corresponding to the room; the wall surface labeling result comprises a three-dimensional coordinate and a normal direction of one point on the wall surface, a two-dimensional coordinate and a normal direction of one point on the wall surface, a three-dimensional coordinate of two points on the wall surface or a two-dimensional coordinate of two points on the wall surface.
2. The house type graph generating method according to claim 1, wherein the obtaining of the house type graph of the target house according to the first room structure of the room of the target house and the door and window labeling result specifically includes:
performing direction correction on the wall line according to the first room structure of the room of the target house to obtain a second room structure of the room of the target house;
combining inner wall lines according to the second room structure of the room of the target house, and/or combining outer wall lines according to the second room structure of the room of the target house to obtain a third room structure of the room of the target house;
and performing projection of doors and windows to a wall line according to the third room structure and the door and window labeling result, thereby obtaining the house type diagram of the target house.
3. The house type graph generating method according to claim 2, wherein the performing the direction correction on the wall line according to the first room structure of the room of the target house specifically comprises:
locally correcting a wall line direction of the first room structure of the room of the target house in units of the rooms of the target house; and after the local correction is finished, globally correcting the wall line direction of the first room structure of the room of the target house by taking the room of the target house as a whole.
4. The house type map generating method according to claim 3, wherein the locally correcting the wall line direction of the first room structure of the room of the target house in units of the room of the target house specifically comprises: acquiring a first local main direction and a second local main direction of a corresponding room according to the first room structure; wherein the first and second local main directions are perpendicular; according to the first local main direction and the second local main direction, carrying out direction correction on a wall line in the room, wherein an included angle between the wall line and the first local main direction or the second local main direction is within a first preset angle threshold value;
the globally correcting the wall line direction of the first room structure of the room of the target house with the room of the target house as a whole specifically includes: taking the room of the target house as a whole, and acquiring a first global main direction and a second global main direction of the target house; wherein the first global main direction and the second global main direction are perpendicular; and acquiring a room with an included angle between the first local main direction or the second local main direction and the first global main direction or the second global main direction within a preset second angle threshold, and performing direction correction on a wall line of the room according to the first local main direction or the second local main direction.
5. The house type graph generating method according to claim 4, wherein the performing direction correction on the wall line of the room according to the first local main direction or the second local main direction specifically comprises:
performing a rotation correction of the room in dependence of the first local main direction or the second local main direction.
6. The house type graph generating method of claim 2, wherein the projecting of the door and window to the wall line according to the third room structure and the door and window labeling result specifically comprises:
determining a wall line where the door and the window are located according to the door and window labeling result, and determining whether the door and the window are an indoor door and window or an entrance door or an outer window according to the wall line where the door and the window are located;
for the indoor doors and windows, acquiring a door and window matching result according to at least one of the direction of the doors and the windows, the distance between the doors and the windows and the overlap ratio of the doors and the windows; combining doors and windows according to the door and window matching result, and projecting the doors and windows to the inner wall line in the third room structure according to the combined doors and windows;
and for the entrance door and the outer window, directly projecting the door and the window to the outer wall line in the third room structure according to the door and window labeling results of the entrance door and the outer window.
7. The house type graph generating method according to claim 2, wherein the merging of the interior wall lines according to the second room structure of the room of the target house specifically comprises:
obtaining a wall line matching result according to at least one of the direction of the wall lines, the distance between the wall lines and the overlap ratio of the wall lines; and merging the inner wall lines according to the wall line matching result.
8. The house pattern generation method of claim 1, wherein the method further comprises: and converting the house type graph of the target house into a preset format for displaying.
9. A house type graph generating apparatus, comprising:
a labeling module to: acquiring a wall surface labeling result and a door and window labeling result of a room of a target house;
a generation module to: acquiring a first room structure corresponding to a room according to the wall surface labeling result, and acquiring a house type diagram of the target house according to the first room structure of the room of the target house and the door and window labeling result;
the generating module is specifically configured to, when being configured to obtain a first room structure corresponding to a room according to the wall surface labeling result: obtaining the position and normal direction of a wall line according to the wall surface marking result, obtaining a wall line intersection point, and connecting adjacent wall lines by using the wall line intersection point so as to obtain the first room structure corresponding to the room; the wall surface labeling result comprises a three-dimensional coordinate and a normal direction of one point on the wall surface, a two-dimensional coordinate and a normal direction of one point on the wall surface, a three-dimensional coordinate of two points on the wall surface or a two-dimensional coordinate of two points on the wall surface.
10. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the steps of the method for generating a house diagram according to any of claims 1 to 8 are implemented when the program is executed by the processor.
11. A non-transitory computer readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the floor plan generating method according to any one of claims 1 to 8.
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