CN110910488A - Method and system for intelligent splicing and virtual restoration of scattered components of historic building - Google Patents
Method and system for intelligent splicing and virtual restoration of scattered components of historic building Download PDFInfo
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Abstract
The embodiment of the invention provides a method and a system for intelligent splicing and virtual restoration of scattered components of an ancient building. The method comprises the following steps: acquiring three-dimensional model information of the historic building; screening the three-dimensional model information to obtain initial component classification information; re-screening the part which does not pass the screening in the three-dimensional model information to obtain complete component classification information; performing systematic restoration on the classification information of the complete component based on the historic building reference historical information to obtain three-dimensional restoration information of the complete component; supplementing the damaged component information in the three-dimensional model information by adopting simulation restoration to obtain three-dimensional restoration information of the damaged component; and combining the three-dimensional recovery information of the complete component and the three-dimensional recovery information of the damaged component to obtain the three-dimensional summary information of the components. The embodiment of the invention applies the digital computer technology to the virtual assembly and restoration of the scattered components of the ancient buildings, classifies the ancient buildings through multiple dimensions, and has the characteristics of higher accuracy and higher speed compared with manual identification, screening and classification.
Description
Technical Field
The invention relates to the technical field of virtual restoration, in particular to a method and a system for intelligent splicing and virtual restoration of scattered components of an ancient building.
Background
In the protection and repair work of the ancient building, the technology of performing virtual restoration on the whole and part of the ancient building is common at present, and one of the technologies is to perform three-dimensional scanning on the existing complete ancient building, wherein the three-dimensional point cloud scanning and the three-dimensional photographing type scanning are performed, further, computer software is applied to calculate and generate a three-dimensional point cloud model of the ancient building, and the ancient building is subjected to virtual reproduction and restoration; secondly, virtually repairing the ancient building damaged component so as to virtually display the electronic restored model by applying VR technology; and thirdly, virtually restoring the damaged ancient building components according to the existing ancient building components. However, the above three technologies mainly face the existing ancient architecture which is relatively complete or has sufficient historical data records.
At present, the technology aiming at virtual assembly and restoration of scattered components of ancient buildings is still blank. The method comprises the steps that data analysis is carried out on a component model generated by a three-dimensional scanning technology in the early stage of the technical process, and the size, color and damage information of the component are automatically screened by utilizing a digital technology; secondly, reversely solving the module of the component, namely solving the dual body of the tenon-and-mortise structure of the component, analyzing various information of the body into data, and performing information matching on the rest components and the solved dual body to find the best matching component; thirdly, analyzing the carving pattern characteristic points related to the members by utilizing a machine learning algorithm, and automatically classifying the members with the most similar patterns in a plurality of members by utilizing a trained algorithm; and finally, carrying out building information archiving processing on the obtained complete model by utilizing image identification to obtain a two-dimensional vector graph capable of meeting archiving requirements.
The point cloud data model obtained by three-dimensional scanning is mainly applied to virtual three-dimensional model demonstration and two-dimensional drawing output, the data function is not fully exerted, and for example, the data are not fully mined in the aspects of texture research, color comparison, construction technology, damage information and the like. The technology for virtually repairing the damaged component of the ancient building is mainly based on the fact that a relatively complete component exists, and the damaged part of the component is virtually recovered. However, the technology is lack of research on restoration of scattered ancient building components, and the technology does not relate to deep research on ancient building practices, construction technologies and damage information.
Disclosure of Invention
The embodiment of the invention provides a method and a system for intelligent splicing and virtual restoration of scattered components of an ancient building, which are used for solving the defects that in the prior art, data mining is insufficient and a large amount of manual identification is relied on in ancient building restoration, so that the identification precision and the identification speed are low.
In a first aspect, an embodiment of the present invention provides a method for intelligent splicing and virtual restoration of scattered components of an ancient building, including:
acquiring three-dimensional model information of the historic building with a preset format;
carrying out primary screening of a plurality of dimensions on the three-dimensional model information to obtain initial component classification information;
carrying out depth screening on the part which does not pass the screening in the three-dimensional model information again, and combining the part with the initial component classification information to obtain complete component classification information;
performing systematic restoration on the complete component classification information based on historic building reference historical information to obtain initial complete historic building three-dimensional restoration information;
supplementing the damaged component information in the three-dimensional model information by adopting simulation restoration to obtain damaged component three-dimensional restoration information;
and combining the initial complete ancient building three-dimensional restoration information and the damaged component three-dimensional restoration information to obtain component three-dimensional summary information of the complete model after the ancient building is virtually restored.
Preferably, the merging the initial complete ancient building three-dimensional restoration information and the damaged component three-dimensional restoration information to obtain component summary information of the virtual restored ancient building complete model, and then further comprising:
and converting the three-dimensional summary information of the components of the complete model after the ancient building is virtually restored into two-dimensional graph data, and storing the two-dimensional graph data.
Preferably, the acquiring of the three-dimensional model information of the historic building with the preset format specifically includes:
acquiring a plurality of three-dimensional coordinate information corresponding to a plurality of positions in the historic building;
establishing a three-dimensional digital model based on the plurality of three-dimensional coordinate information;
and converting the format of the three-dimensional digital model based on the preset format to obtain the three-dimensional model information.
Preferably, the preliminary screening of a plurality of dimensions on the three-dimensional model information to obtain initial component classification information specifically includes:
screening the three-dimensional model information based on spatial data to obtain spatial data component classification information;
screening the three-dimensional model information based on color data to obtain color data component classification information;
screening the three-dimensional model information based on the texture data to obtain texture data component classification information;
screening the three-dimensional model information based on construction data to obtain construction data component classification information;
screening the three-dimensional model information based on the method data to obtain method data component classification information;
screening the three-dimensional model information based on the damage data to obtain damage data component classification information;
and merging the classification information of the spatial data component, the classification information of the color data component, the classification information of the texture data component, the classification information of the construction data component, the classification information of the practice data component and the classification information of the damage data component to obtain the classification information of the initial component.
Preferably, the historic building reference history information comprises:
existing historic building information having a preset degree of correlation with the historic building, and historic building documentation information corresponding to the scattered historic building.
Preferably, the converting the three-dimensional summary information of the components of the virtual restored complete model of the ancient building into two-dimensional graphic data specifically includes:
acquiring a three-dimensional model positive shot image corresponding to the three-dimensional summary information of the scattering component;
identifying a plurality of carving boundaries corresponding to a plurality of carving ornamentations in the positive shot picture of the three-dimensional model;
outputting the two-dimensional graphics data based on the number of engraved boundaries.
In a second aspect, an embodiment of the present invention provides a system for intelligent splicing and virtual restoration of scattered components of an ancient building, including:
the acquisition module is used for acquiring three-dimensional model information of the historic building with a preset format;
the screening module is used for carrying out primary screening of a plurality of dimensions on the three-dimensional model information to obtain initial component classification information;
the re-screening module is used for re-performing deep screening on the part which does not pass the screening in the three-dimensional model information, and combining the part with the initial component classification information to obtain complete component classification information;
the restoration module is used for systematically restoring the complete component classification information based on historic building reference historical information to obtain initial complete historic building three-dimensional restoration information;
the supplement module is used for supplementing the damaged component information in the three-dimensional model information by adopting simulation restoration to obtain three-dimensional restoration information of the damaged component;
and the merging output module is used for merging the initial complete ancient building three-dimensional restoration information and the damaged component three-dimensional restoration information to obtain component three-dimensional summary information of the complete model after the ancient building is virtually restored.
Preferably, the system further comprises:
and the conversion and storage module is used for converting the three-dimensional summary information of the components of the complete model after the virtual restoration of the ancient building into two-dimensional graph data and storing the two-dimensional graph data.
In a third aspect, an embodiment of the present invention provides an electronic device, including:
the device comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the program to realize any one of the method steps for intelligent splicing and virtual restoration of the historic building scattering components.
In a fourth aspect, embodiments of the present invention provide a non-transitory computer-readable storage medium, on which a computer program is stored, the computer program, when executed by a processor, implementing any one of the method steps for smart stitching and virtual restoration of historic building scattering components.
According to the method and the system for intelligent splicing and virtual restoration of the scattered components of the ancient buildings, provided by the embodiment of the invention, the digital computer technology is applied to the virtual splicing and restoration of the scattered components of the ancient buildings, and the ancient buildings are classified through multiple dimensions, so that the method and the system have the characteristics of higher accuracy and higher speed compared with manual identification, screening and classification.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of a method for intelligent splicing and virtual restoration of scattered components of an ancient building according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an omni-directional screening process of three-dimensional model data according to an embodiment of the present invention;
fig. 3 is a system structure diagram for intelligent splicing and virtual restoration of scattered components of an ancient building according to an embodiment of the present invention;
fig. 4 is a block diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, 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.
In order to reduce the interference and damage to the ancient architecture caused by direct contact, virtual assembly restoration is needed and then actual assembly restoration is carried out. The technology comprises data analysis, lost construction technology, image identification and screening and the like, all methods, construction technology, damage information and the like of the components are analyzed into data, and the data are subjected to algorithm analysis by using a digital technology, so that the scattered and scarce ancient building components are subjected to virtual splicing and restoration more quickly.
Fig. 1 is a flowchart of a method for intelligent splicing and virtual restoration of scattered components of an ancient building according to an embodiment of the present invention, as shown in fig. 1, including:
s1, acquiring three-dimensional model information of the historic building with a preset format;
s2, carrying out primary screening of a plurality of dimensions on the three-dimensional model information to obtain initial component classification information;
s3, carrying out depth screening on the part which does not pass the screening in the three-dimensional model information again, and combining the part with the initial component classification information to obtain complete component classification information;
s4, performing systematic restoration on the complete component classification information based on historic building reference historical information to obtain initial complete historic building three-dimensional restoration information;
s5, supplementing the damaged component information in the three-dimensional model information by adopting simulation restoration to obtain damaged component three-dimensional restoration information;
and S6, combining the initial complete ancient building three-dimensional restoration information and the damaged component three-dimensional restoration information to obtain component three-dimensional summary information of the complete model after the ancient building virtual restoration.
Specifically, in step S1, before the three-dimensional model is established, three-dimensional model information related to the historic building is first obtained, where the three-dimensional model information has a uniform preset format, so as to facilitate uniform processing of subsequent input models;
in the step S2, carrying out multi-dimensional preliminary screening on the three-dimensional model information with the preset format, starting from the dimension with high relevance with the information of the historic building components, and comprehensively acquiring the classification information of the multi-dimensional initial components;
in step S3, after a complete traversal screening process, part of the three-dimensional model information may not pass the screening, and at this time, the part is input into the model again for deep screening and is merged with the component classification information obtained in the previous process until complete component classification information is obtained;
in the step S4, after reference historical information related to the ancient building to be restored is obtained, systematic restoration is carried out on the complete component classification information obtained in the step S3, and three-dimensional restoration information corresponding to the initial complete ancient building component is output;
in step S5, in the ancient building, in addition to the restoration of the complete information component, the system restoration of the partially damaged component is not possible due to the lack of information, and the information of the damaged component needs to be completely supplemented by processing through a simulation restoration method.
In step S6, the initial complete ancient building three-dimensional restoration information and the damaged component three-dimensional restoration information are finally merged to obtain the component three-dimensional summary information of the complete model after the ancient building virtual restoration.
The embodiment of the invention applies the digital computer technology to the virtual assembly and restoration of the scattered components of the ancient buildings, classifies the ancient buildings through multiple dimensions, avoids the complicated supply and demand of manually screening and restoring the components compared with manually identifying, screening and classifying, and has the characteristics of higher accuracy and higher speed.
Based on the above embodiment, the merging the initial complete ancient building three-dimensional restoration information and the damaged component three-dimensional restoration information to obtain component summary information of the virtual restored complete model of the ancient building, and then further includes:
and converting the three-dimensional summary information of the components of the complete model after the ancient building is virtually restored into two-dimensional graph data, and storing the two-dimensional graph data.
Specifically, the three-dimensional model data which is virtually restored is converted into a two-dimensional graph for data storage. The conventional method for converting a three-dimensional model into a two-dimensional graph mainly outputs the two-dimensional graph through manual drawing by manpower, but the conventional manual drawing graph has many problems, for example, when the two-dimensional graph is drawn by referring to a positive shot diagram of the three-dimensional model, the two-dimensional graph drawing accuracy is often not high, the drawing graph drawing is not clear, and the like, and the two-dimensional graph directly derived by using the three-dimensional model has a certain perspective under the normal condition, so that a great error occurs in the precision of outputting the two-dimensional graph, and the two-dimensional graph is not beneficial to storage.
When the restored ancient building model is output with the two-dimensional graph, the ancient building component is output with a plurality of carving patterns and high complexity, so that the output of the ancient building two-dimensional graph is avoided as much as possible by using manpower, on one hand, various error problems caused by manual tracing can be avoided, and on the other hand, the huge manual tracing workload caused by the complicated shrine carving patterns can be greatly reduced.
The embodiment of the invention has the advantages of more intuition and more accuracy by converting the three-dimensional model into the two-dimensional vector graph, and is beneficial to data storage.
Based on any one of the above embodiments, the obtaining of the three-dimensional model information of the historic building with the preset format specifically includes:
acquiring a plurality of three-dimensional coordinate information corresponding to a plurality of positions in the historic building;
establishing a three-dimensional digital model based on the plurality of three-dimensional coordinate information;
and converting the format of the three-dimensional digital model based on the preset format to obtain the three-dimensional model information.
Specifically, three-dimensional coordinate information of a large number of point locations of the ancient building to be restored is obtained, and an accurate three-dimensional digital model of the object to be measured is established. Here, the three-dimensional photographing scanning is improved by tens of times in the measurement speed compared with the three-dimensional laser scanning, the scanning is more stable, the scanning dead angle is relatively small, and the damage to the human body in the scanning process is less, so that the embodiment of the invention scans the detected object by adopting the three-dimensional photographing scanning.
And then converting the three-dimensional model format obtained by processing the three-dimensional scanning data, and converting the model format into a three-dimensional model format which can be conveniently operated, such as a format which can be adopted by auxiliary software Rhinoceros, so that the method has universality.
And further carrying out statistics on the converted three-dimensional model information, including the length, width and height of the constructed model and the summary of the structure and the pattern of the constructed model.
According to the embodiment of the invention, a series of pre-processing is carried out on the original information of the ancient building, the original information is converted into a format which can be identified by virtual splicing recovery software, and preliminary statistics and classification are carried out, so that the efficiency and the accuracy of subsequent three-dimensional model data processing are improved.
Based on any of the above embodiments, the preliminary screening of the three-dimensional model information in several dimensions to obtain initial component classification information specifically includes:
screening the three-dimensional model information based on spatial data to obtain spatial data component classification information;
screening the three-dimensional model information based on color data to obtain color data component classification information;
screening the three-dimensional model information based on the texture data to obtain texture data component classification information;
screening the three-dimensional model information based on construction data to obtain construction data component classification information;
screening the three-dimensional model information based on the method data to obtain method data component classification information;
screening the three-dimensional model information based on the damage data to obtain damage data component classification information;
and merging the classification information of the spatial data component, the classification information of the color data component, the classification information of the texture data component, the classification information of the construction data component, the classification information of the practice data component and the classification information of the damage data component to obtain the classification information of the initial component.
Specifically, after the three-dimensional model information of the system is obtained, the three-dimensional component model data of the historic building needs to be screened, referring to fig. 2, the screening steps are specifically as follows:
1) the screening of spatial data is to the problem that the length and width of the member size is different because numerous component sizes that bring of ancient building spare parts, and the record is arranged to the general of ancient building after actual investigation to this arrangement form to the ancient building member is judged, further filters. Therefore, the workload can be greatly reduced, and the virtual assembly period can be shortened. The method for screening the sizes of the ancient building components is mainly operated by a Grasshopper plug-in of Rhinoceros software. Firstly, size data related to ancient building components are summarized in Excel software, then a Grasshopper plug-in of Rhinoceros software is programmed, required component data are screened from the Excel summarized data, and further numbers of the screened components are recorded, so that matching of a pattern and a construction pattern is performed on the components with similar sizes in the next step.
2) And (4) screening color data, namely summarizing the use color preference of each dynasty of the ancient architecture, and correspondingly screening the color use.
3) The screening of the pattern data is that the ancient building carving patterns of each emperor are different due to the different dynasties, and the dragon veins and the cloud veins in the ancient building are the most common, so the ancient building carving patterns can be roughly classified according to the dragon veins, the cloud veins and other patterns in the ancient building carving patterns. Through the observation to the ancient building component, the dragon line that appears on its component combines together with the cloud to show that single dragon is played pearl and two dragons and is played pearl style and be many, wherein the trend of dragon is different, and the form is various, and this pattern contrast when also distinguishing the component provides more reference. When the dragon veins are subjected to pattern matching, the detailed trends of some dragon veins can be started, such as the trend of rising or falling of the dragon tail or the carving pattern of the dragon tail, the placement of the dragon claws, the fire pattern of the 'pearl' in the 'dragon playing pearl', and the like. When the pattern comparison is carried out, except for the carving pattern of the dragon text, the cloud pattern matched with the dragon pattern for use also has high reference value. The cloud pattern is a common decoration pattern in the clear building and has more patterns, and the cloud pattern is also frequently used in the decoration of the ancient building components, so that the classification and summarization of the cloud pattern also have the function of twice with half the effort on the classification of the ancient building components. The cloud pattern can be roughly classified by observing the ancient building member, and the main pattern forms comprise Ruyi cloud patterns, rolling cloud patterns, dolomitic patterns, simplified deformation of the three patterns and the like. The general process of making the engraving texture comparison is mainly as follows: firstly, programming by using program software Anaconda, then enabling a computer to learn and recognize the feature points of the carving patterns of the component, and enabling the computer to automatically classify the component according to the learned feature points of different components.
4) And (4) screening construction data, namely aiming at the mortise and tenon problem of the ancient building component. The types of the tenon-and-mortise related to the ancient building component are more, and the evolution of the common tenon-and-mortise style is larger, so that the selection and the distinction of the types of the tenon-and-mortise are necessary. The supporting structure is positioned at the bottommost part of the whole ancient building and mainly used for supporting the ancient building part of other members on the upper part, such as a Fenghua Shenshixue filling seat, the most main mortise and tenon structure of the supporting structure is mainly a wood wedge or silver ingot tenon which is vertically matched with the engagement of a plain tenon and a mortise, and the bottom of the whole ancient building is subjected to drawknot by utilizing an internal cross-brace dovetail. Therefore, the types of mortise and tenon structures at the bottom of the ancient building are not many, and the mortise and tenon structures are mainly one or two mortise and tenon structures and variants thereof. The types of members related to the bottom of the ancient building are various and different in shape, for example, a dragon column member which supports the upper member above the niche beard seat of the temple, a curtain cage purlin member which draws the dragon column and supports the upper member together with the dragon column, and members such as an arch, a ceiling branch and a cover plate with fine top, so that the members on the bottom of the ancient building include various mortise and tenon types. Such as pin tenons and box tenons for securing vertical keel columns; a hoop head tenon, a through tenon and a half tenon for fixing the dragon column and the curtain cage balk; cross waist-clamping tenon for fixing the ceiling branch and inserting pin, penetrating pin and the like for fixing the bracket component. Because ancient building member kind is more and the component damages, loses seriously, for this reason mainly screens through the reverse mode of asking to match the model when carrying out tenon fourth of twelve earthly branches screening to the component. Taking the beard and diffuse seat component in the ancient building as an example, the body of the beard and diffuse seat is basically in a cube or a cuboid, the middle of the beard and diffuse seat component is hollowed out, and the internal cross brace is used for bracing and supporting the beard and diffuse seat component. The four sides are enclosed by upper and lower layers of components, and the whisker chair components are matched in mirror image, namely the east-west components and the south-north components are very similar; the north-south component and the east-west component are connected together through mortise and tenon joints, so that the mortise and tenon joint shape of the components at adjacent corners can be simulated by software, and the working efficiency is improved. Firstly, a member to be matched at the adjacent corner in the ancient construction beard and diffusion seat is found, the reverse model of the member is calculated by using Rhinoceros software, a preliminary tenon-and-mortise mode lapped with the member can be obtained, and the reverse model of the member to be matched is obtained after mirror image processing.
5) And (4) screening the method data, and classifying the components at different parts of the ancient building according to the construction forms of the different parts of the ancient building and the common carving patterns. For example, the beard and rubber seat part at the bottom of the ancient architectural paradox shrine is mainly overlapped by upper and lower owls, upper and lower imitations, girdling, and guy corners of upper and lower layers, and the whole beard and rubber seat is pulled and knotted by using the engagement of a plain tenon and a mortise and a dovetail tenon; for example, the dragon column part on the whisker-shaped seat mainly takes four dragon columns with the same column tenons as a group, and the carving ornamentation on the dragon columns is also carved in proportion; the curtain cage purlin above the keel column is overlapped by taking an upper layer and a lower layer as a group, and the curtain cage purlin on four sides is connected to the keel column by a hoop head tenon, a through tenon and a half tenon; the uppermost bucket arch and the ceiling branches are special in shape and form and are very easy to distinguish from a beard and cloth seat, a dragon column, a curtain cage, a purlin and the like, the bucket arch components are connected through a plurality of components such as pins, penetrating pins and the like, and the ceiling branches are connected through a plurality of cross-shaped waist clamping tenons.
6) And (4) screening damage data, referring to the shape system and the carving patterns of the classified damaged components in the ancient building, virtually restoring damaged parts of the components according to the carving patterns and the building shape system which are not damaged in the components, deducing the component type to which the damage construction belongs, and classifying the damage construction.
According to the embodiment of the invention, the computer is used for carrying out autonomous identification and screening on the scattered components by utilizing a digital technology, so that the components are classified more quickly, accurately and comprehensively, and accurate reference information is provided for recovering data.
Based on any one of the above embodiments, the historic building reference history information includes:
existing historic building information having a preset degree of correlation with the historic building, and historic building documentation information corresponding to the scattered historic building.
Specifically, the ancient architecture restoration is carried out by referring to the existing similar ancient architecture information and the literature records of the scattered ancient architectures, and the classified ancient architecture components are systematically restored. And according to the construction characteristics of the historic building, the step of recovering the historic building is planned in detail, and the classified components are classified and treated.
According to the embodiment of the invention, the damaged component is subjected to analog restoration by adopting two aspects of similar information and historical information, so that high-precision restoration processing is performed to the maximum extent.
Based on any one of the above embodiments, converting the three-dimensional summary information of the components of the virtual restored complete model of the ancient building into two-dimensional graphic data specifically includes:
acquiring a three-dimensional model positive shot image corresponding to the component three-dimensional summary information of the complete model after the ancient building is virtually restored;
identifying a plurality of carving boundaries corresponding to a plurality of carving ornamentations in the positive shot picture of the three-dimensional model;
outputting the two-dimensional graphics data based on the number of engraved boundaries.
Specifically, the specific method and principle for converting the ancient building three-dimensional model into the two-dimensional graph are as follows:
the specific method for converting the three-dimensional model of the historic building into the two-dimensional graph comprises the following steps of firstly, arranging a positive shot picture of the three-dimensional model to be converted into the two-dimensional graph, secondly, programming by using programming software, enabling a computer to identify the carving boundaries of different carving patterns, and thirdly, outputting the two-dimensional graph of the carving pattern boundary identified by the computer.
The principle of converting the ancient three-dimensional model into the two-dimensional graph is as follows, aiming at the derived ancient model positive shot graph, according to the fact that paint materials and carving depths of different carved decorations of the ancient model are different, colors and light and shade degrees displayed on the shrine positive shot graph are also different, a pixel point on the positive shot graph can be selected for the purpose, the pixel point serves as the center, a computer identifies a point close to pixel information of the pixel point, a domain of pixel difference values is set until the pixel point with larger pixel information difference is identified, the pixel point with larger pixel information difference serves as a boundary until the computer identifies all two-dimensional graph lines of the shrine outline and the carved decorations, and the identified two-dimensional graph lines are derived into the two-dimensional graph which can be operated by software such as CAD.
According to the embodiment of the invention, the restored three-dimensional model information is further converted into the two-dimensional graph which can be identified and operated by general software by adopting the acquisition of the positive shot image, so that the identification degree is improved on one hand, and the data storage is facilitated on the other hand.
Fig. 3 is a system structure diagram for intelligent splicing and virtual restoration of scattered components of an ancient building according to an embodiment of the present invention, as shown in fig. 3, including: the device comprises an acquisition module 31, a screening module 32, a re-screening module 33, a restoration module 34, a supplement module 35 and a merging output module 36; wherein:
the obtaining module 31 is configured to obtain three-dimensional model information of the historic building in a preset format; the screening module 32 is configured to perform preliminary screening of a plurality of dimensions on the three-dimensional model information to obtain initial component classification information; the re-screening module 33 is configured to re-perform deep screening on the part of the three-dimensional model information that does not pass the screening, and combine the part of the three-dimensional model information with the initial component classification information to obtain complete component classification information; the restoration module 34 is used for systematically restoring the complete component classification information based on historic building reference historical information to obtain initial complete historic building three-dimensional restoration information; the supplement module 35 is configured to supplement the damaged component information in the three-dimensional model information by using simulated restoration, so as to obtain three-dimensional restoration information of the damaged component; and the merging output module 36 is configured to merge the initial complete ancient building three-dimensional restoration information and the damaged component three-dimensional restoration information to obtain component three-dimensional summary information of the complete model after the ancient building virtual restoration.
The system provided by the embodiment of the present invention is used for executing the corresponding method, the specific implementation manner of the system is consistent with the implementation manner of the method, and the related algorithm flow is the same as the algorithm flow of the corresponding method, which is not described herein again.
The embodiment of the invention applies the digital computer technology to the virtual assembly and restoration of the scattered components of the ancient buildings, classifies the ancient buildings through multiple dimensions, avoids the complicated supply and demand of manually screening and restoring the components compared with manually identifying, screening and classifying, and has the characteristics of higher accuracy and higher speed.
Based on any of the above embodiments, the system further includes a conversion storage module 37, where the conversion storage module 37 is configured to convert the three-dimensional summary information of the components of the virtual restored complete model of the ancient building into two-dimensional graph data, and store the two-dimensional graph data.
The embodiment of the invention has the advantages of more intuition and more accuracy by converting the three-dimensional model into the two-dimensional vector graph, and is beneficial to data storage.
Based on any of the above embodiments, the obtaining module 31 includes: a first obtaining submodule 311, an establishing submodule 312 and a converting submodule 313; wherein:
the first obtaining submodule 311 is configured to obtain a plurality of three-dimensional coordinate information corresponding to a plurality of positions in the historic building; the establishing sub-module 312 establishes a three-dimensional digital model based on the plurality of pieces of three-dimensional coordinate information; the converting submodule 313 converts the format of the three-dimensional digital model based on the preset format to obtain the three-dimensional model information.
According to the embodiment of the invention, a series of pre-processing is carried out on the original information of the ancient building, the original information is converted into a format which can be identified by virtual splicing recovery software, and preliminary statistics and classification are carried out, so that the efficiency and the accuracy of subsequent three-dimensional model data processing are improved.
Based on any of the above embodiments, the screening module 32 includes: a first screening submodule 321, a second screening submodule 322, a third screening submodule 323, a fourth screening submodule 324, a fifth screening submodule 325, a sixth screening submodule 326 and a merging submodule 327; wherein:
the first screening submodule 321 is configured to screen the three-dimensional model information based on spatial data to obtain spatial data component classification information; the second screening submodule 322 is configured to screen the three-dimensional model information based on color data to obtain color data component classification information; the third screening submodule 323 is used for screening the three-dimensional model information based on the texture data to obtain texture data component classification information; the fourth screening submodule 324 is configured to screen the three-dimensional model information based on the construction data to obtain construction data component classification information; the fifth screening submodule 325 is configured to screen the three-dimensional model information based on the practice data to obtain practice data component classification information; the sixth screening submodule 326 is configured to screen the three-dimensional model information based on the damage data to obtain damage data component classification information; the merging submodule 327 is configured to merge the spatial data component classification information, the color data component classification information, the texture data component classification information, the construction data component classification information, the practice data component classification information, and the damaged data component classification information to obtain the initial component classification information.
According to the embodiment of the invention, the computer is used for carrying out autonomous identification and screening on the scattered components by utilizing a digital technology, so that the components are classified more quickly, accurately and comprehensively, and accurate reference information is provided for recovering data.
According to any of the above embodiments, the historic building reference history information in the restoration module 34 includes:
existing historic building information having a preset degree of correlation with the historic building, and historic building documentation information corresponding to the scattered historic building.
According to the embodiment of the invention, the damaged component is subjected to analog restoration by adopting two aspects of similar information and historical information, so that high-precision restoration processing is performed to the maximum extent.
Based on any of the above embodiments, the conversion saving module 37 includes: a second obtaining submodule 371, an identifying submodule 372 and an output submodule 373; wherein:
the second obtaining submodule 371 is configured to obtain a three-dimensional model positive shot map corresponding to the component three-dimensional summary information of the complete model after the virtual restoration of the ancient building; the identification submodule 372 is used for identifying a plurality of carving boundaries corresponding to a plurality of carving ornamentations in the positive image of the three-dimensional model; the output submodule 373 is configured to output the two-dimensional graphic data based on the plurality of engraved boundaries.
According to the embodiment of the invention, the restored three-dimensional model information is further converted into the two-dimensional graph which can be identified and operated by general software by adopting the acquisition of the positive shot image, so that the identification degree is improved on one hand, and the data storage is facilitated on the other hand.
Fig. 4 illustrates a physical structure diagram of an electronic device, which may include, as shown in fig. 4: a processor (processor)410, a communication Interface 420, a memory (memory)430 and a communication bus 440, wherein the processor 410, the communication Interface 420 and the memory 430 are communicated with each other via the communication bus 440. The processor 410 may call logic instructions in the memory 430 to perform the following method: acquiring three-dimensional model information of the historic building with a preset format; carrying out primary screening of a plurality of dimensions on the three-dimensional model information to obtain initial component classification information; carrying out depth screening on the part which does not pass the screening in the three-dimensional model information again, and combining the part with the initial component classification information to obtain complete component classification information; performing systematic restoration on the complete component classification information based on historic building reference historical information to obtain initial complete historic building three-dimensional restoration information; supplementing the damaged component information in the three-dimensional model information by adopting simulation restoration to obtain damaged component three-dimensional restoration information; and combining the initial complete ancient building three-dimensional restoration information and the damaged component three-dimensional restoration information to obtain component three-dimensional summary information of the complete model after the ancient building is virtually restored.
In addition, the logic instructions in the memory 430 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units 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 embodiments 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, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to perform the transmission method provided in the foregoing embodiments when executed by a processor, and for example, the method includes: acquiring three-dimensional model information of the historic building with a preset format; carrying out primary screening of a plurality of dimensions on the three-dimensional model information to obtain initial component classification information; carrying out depth screening on the part which does not pass the screening in the three-dimensional model information again, and combining the part with the initial component classification information to obtain complete component classification information; performing systematic restoration on the complete component classification information based on historic building reference historical information to obtain initial complete historic building three-dimensional restoration information; supplementing the damaged component information in the three-dimensional model information by adopting simulation restoration to obtain damaged component three-dimensional restoration information; and combining the initial complete ancient building three-dimensional restoration information and the damaged component three-dimensional restoration information to obtain component three-dimensional summary information of the complete model after the ancient building is virtually restored.
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 the present 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 can be implemented by software plus a necessary general hardware platform, and certainly can 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 methods described in 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 (10)
1. A method for ancient building scattered component intelligence concatenation and virtual restoration, its characterized in that includes:
acquiring three-dimensional model information of the historic building with a preset format;
carrying out primary screening of a plurality of dimensions on the three-dimensional model information to obtain initial component classification information;
carrying out depth screening on the part which does not pass the screening in the three-dimensional model information again, and combining the part with the initial component classification information to obtain complete component classification information;
performing systematic restoration on the complete component classification information based on historic building reference historical information to obtain initial complete historic building three-dimensional restoration information;
supplementing the damaged component information in the three-dimensional model information by adopting simulation restoration to obtain damaged component three-dimensional restoration information;
and combining the initial complete ancient building three-dimensional restoration information and the damaged component three-dimensional restoration information to obtain component three-dimensional summary information of the complete model after the ancient building is virtually restored.
2. The method according to claim 1, wherein the initial complete ancient building three-dimensional restoration information and the damaged component three-dimensional restoration information are combined to obtain component summary information of the virtual restored complete model of the ancient building, and then the method further comprises:
and converting the three-dimensional summary information of the components of the complete model after the ancient building is virtually restored into two-dimensional graph data, and storing the two-dimensional graph data.
3. The method for intelligent splicing and virtual restoration of scattered components of the historic building according to claim 1, wherein the step of obtaining the three-dimensional model information of the historic building with a preset format specifically comprises the following steps:
acquiring a plurality of three-dimensional coordinate information corresponding to a plurality of positions in the historic building;
establishing a three-dimensional digital model based on the plurality of three-dimensional coordinate information;
and converting the format of the three-dimensional digital model based on the preset format to obtain the three-dimensional model information.
4. The method for intelligent splicing and virtual restoration of scattered components of an ancient building according to claim 1, wherein the preliminary screening of the three-dimensional model information in a plurality of dimensions is performed to obtain classification information of initial components, and the method specifically comprises the following steps:
screening the three-dimensional model information based on spatial data to obtain spatial data component classification information;
screening the three-dimensional model information based on color data to obtain color data component classification information;
screening the three-dimensional model information based on the texture data to obtain texture data component classification information;
screening the three-dimensional model information based on construction data to obtain construction data component classification information;
screening the three-dimensional model information based on the method data to obtain method data component classification information;
screening the three-dimensional model information based on the damage data to obtain damage data component classification information;
and merging the classification information of the spatial data component, the classification information of the color data component, the classification information of the texture data component, the classification information of the construction data component, the classification information of the practice data component and the classification information of the damage data component to obtain the classification information of the initial component.
5. The method for intelligent splicing and virtual restoration of historic building scattering members according to any one of claims 1 to 4, wherein the historic building reference history information comprises:
existing historic building information having a preset degree of correlation with the historic building, and historic building documentation information corresponding to the scattered historic building.
6. The method as claimed in claim 2, wherein the converting of the three-dimensional summary information of the ancient architecture virtually restored complete model into two-dimensional graphic data specifically comprises:
acquiring a three-dimensional model positive shot image corresponding to the component three-dimensional summary information of the complete model after the ancient building is virtually restored;
identifying a plurality of carving boundaries corresponding to a plurality of carving ornamentations in the positive shot picture of the three-dimensional model;
outputting the two-dimensional graphics data based on the number of engraved boundaries.
7. A system for ancient building scattered component intelligence concatenation and virtual recovering, its characterized in that includes:
the acquisition module is used for acquiring three-dimensional model information of the historic building with a preset format;
the screening module is used for carrying out primary screening of a plurality of dimensions on the three-dimensional model information to obtain initial component classification information;
the re-screening module is used for re-performing deep screening on the part which does not pass the screening in the three-dimensional model information, and combining the part with the initial component classification information to obtain complete component classification information;
the restoration module is used for systematically restoring the complete component classification information based on historic building reference historical information to obtain initial complete historic building three-dimensional restoration information;
the supplement module is used for supplementing the damaged component information in the three-dimensional model information by adopting simulation restoration to obtain three-dimensional restoration information of the damaged component;
and the merging output module is used for merging the initial complete ancient building three-dimensional restoration information and the damaged component three-dimensional restoration information to obtain component three-dimensional summary information of the complete model after the ancient building is virtually restored.
8. The system for intelligent splicing and virtual restoration of historic building scattering members according to claim 7, further comprising:
and the conversion and storage module is used for converting the three-dimensional summary information of the components of the complete model after the virtual restoration of the ancient building into two-dimensional graph data and storing the two-dimensional graph data.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program performs the method steps for smart stitching and virtual rehabilitation of historic building scattering components according to any one of claims 1 to 6.
10. A non-transitory computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements the method steps for smart stitching and virtual rehabilitation of historic building scattering components according to any one of claims 1 to 6.
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