CN116630830A - Method and system for presenting full-space information flow of power pipeline based on oblique photography - Google Patents
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Abstract
The invention provides a method and a system for presenting full-space information flow of an electric pipeline based on oblique photography, and belongs to the technical field of three-dimensional image processing. The method comprises the following steps: acquiring position information of an area to be analyzed, and planning an aerial photographing route according to the position information; performing live-action oblique photography according to the aerial photography route to obtain live-action image data; carrying out data preprocessing on live-action shooting data to obtain optimized live-action image data, and carrying out three-dimensional model construction to obtain a ground surface three-dimensional model; acquiring the design specification and technical data of an underground pipeline of a region to be analyzed, and establishing an underground three-dimensional model; integrating the two three-dimensional models to obtain a power pipeline model; and constructing a visualization platform, and presenting the power pipeline model on the visualization platform. According to the invention, through carrying out three-dimensional visualization operation on pipeline data, the pipeline buried underground is displayed in a three-dimensional model form, so that a user can intuitively know the complex spatial distribution among pipelines.
Description
Technical Field
The invention relates to the technical field of image data analysis, in particular to a power pipeline full-space information flow presentation method and system based on oblique photography.
Background
The power pipeline information system has the advantages that a geographical background diagram and power pipeline data are shared, and daily management and maintenance of pipeline resources are carried out; displaying pipeline cables, pipe wells and pipeline paths in a graphical mode, accurately positioning the positions of the power pipelines and knowing the current situation of the pipelines; the method can inquire the attribute information of the power pipeline equipment, realize the electronic management of the power pipeline data, provide powerful technical support for the scientific management of the underground pipe network, improve the operation management level of enterprises and improve the asset utilization of the power enterprises.
In the prior art, according to actual related requirements, underground pipelines often show a complicated and crisscrossed distribution state in space, and the expression and management of pipelines in a two-dimensional pipeline diagram are only carried out by adopting the combination of two-dimensional punctiform and linear symbols. A large number of pipelines are crowded together, and different types of pipelines cannot be clearly displayed on a two-dimensional pipeline diagram, so that the readability of the two-dimensional pipeline diagram is reduced. In addition, there are some pipelines which have large bending fluctuation degree and even are vertical to the ground. In a two-dimensional pipeline diagram, the pipeline can only be represented as a point mark which is illustrated by characters on the diagram, and the real space position of the pipeline cannot be intuitively represented.
Disclosure of Invention
The invention aims to: a method and a system for presenting full-space information flow of a power pipeline based on oblique photography are provided to solve the above problems in the prior art. The pipeline data are subjected to three-dimensional visualization operation, and the pipeline buried underground is displayed in a three-dimensional model form, so that a user can intuitively know the complex spatial distribution among the pipelines; meanwhile, the real-scene three-dimensional scene model data and the monomer vector data are obtained by fusing the oblique photogrammetry technology, and are combined with the three-dimensional pipeline information to construct three-dimensional scene integration of the whole space information of the power pipeline, so that a user can rapidly correspond to the position information of pipe network elements in the display world according to the characteristics of the upper layers, the readability of the pipe network model is improved, and the positioning and the identification of the pipe network are facilitated.
The technical scheme is as follows: in a first aspect, a method for presenting a full-space information stream of a power pipeline based on oblique photography is provided, and the method comprises the following steps:
acquiring position information of an area to be analyzed according to analysis requirements, and planning an unmanned aerial vehicle aerial photographing route according to the position information;
the unmanned aerial vehicle executes live-action oblique photography according to the aerial photography route, and live-action image data are obtained and stored;
preprocessing the live-action image data and executing data to obtain optimized live-action image data, and executing three-dimensional model construction according to the optimized live-action image data to obtain a ground surface three-dimensional model;
acquiring the design specification and technical data of an underground pipeline of a region to be analyzed, and establishing an underground three-dimensional model;
integrating the surface three-dimensional model and the underground three-dimensional model to obtain a power pipeline model;
and constructing a visual platform, executing a rendering operation loaded on demand on the visual platform, and presenting the power pipeline model.
In some realizable forms of the first aspect, in the process of performing aerial photography path planning, constructing a flight route of the unmanned aerial vehicle by combining self characteristics and environmental characteristics of the area to be analyzed and flight performance of the unmanned aerial vehicle; meanwhile, in the process of performing live-action oblique photography according to the aerial photography route, at least two sensors for realizing oblique photography are mounted on the periphery of the unmanned aerial vehicle, and live-action image data are obtained in a mode of combining oblique photography images photographed by the sensors with the view angles of the sensors.
In some implementations of the first aspect, the process of constructing the three-dimensional model of the earth surface includes the following steps:
reading live-action image data, and executing image enhancement and image restoration operations to obtain optimized live-action image data;
performing image mapping on the optimized live-action image data to obtain oblique photographic image data;
carrying out integrity judgment on the oblique photographic image data finger to obtain an integrity judgment result;
when the integrity judgment result is complete, performing aerial triangulation in the oblique photographic image data to obtain aerial triangulation information; simultaneously executing the analysis of the oblique photographic image data to obtain azimuth elements in the oblique photographic image data;
and building a surface three-dimensional model according to the azimuth element.
In some implementations of the first aspect, the process of constructing the subsurface three-dimensional model includes the steps of:
reading the data materials of the related pipelines in the current analysis area from a database for recording the underground data entities;
analyzing the pipeline data material to obtain modeling parameters;
traversing the modeling parameters and judging whether the current parameters are pipeline parameters or not;
if the judging result is the pipeline parameter, rendering the pipeline parameter to obtain three-dimensional pipeline data;
and carrying out parameterized modeling according to the three-dimensional pipeline data construction to obtain an underground three-dimensional model.
In some implementations of the first aspect, the surface three-dimensional model and the subsurface three-dimensional model are in a mode corresponding to each other, the surface three-dimensional model and the subsurface three-dimensional model are connected in a relation manner through a monomerized reference, and the surface three-dimensional model and the subsurface three-dimensional model are integrated based on the monomerized reference to obtain the power pipeline model; the singulation references include: location information, entity building category.
In some implementations of the first aspect, the method further includes performing, in the power pipeline model, a singulation of the different entities based on the building contour and the location information; based on the extraction result of the monomer information, the different entities are separately classified; based on the respective classification results, the power pipeline model can be selected, queried and managed by the visualization platform.
Wherein the process of performing different entity singulation comprises:
acquiring digital orthophoto data corresponding to the power line model;
performing image enhancement and image denoising processing on the digital orthophoto data, and performing object contour extraction based on a processing result to obtain object contour information;
establishing a transparent bounding box based on the outline information of the target object;
and superposing the transparent bounding box into the power pipeline model to obtain the monomer power pipeline model meeting the requirements.
In a second aspect, a power pipeline full-space information flow presenting system based on oblique photography is provided, and is used for implementing a power pipeline full-space information flow presenting method based on oblique photography, and the system comprises the following modules: the system comprises a path planning module, a data acquisition module, a data analysis module, a model construction module, a model integration module and a visualization module.
The path planning module is used for planning an aerial photographing path of the unmanned aerial vehicle according to the position information of the area to be analyzed; the data acquisition module is used for executing live image data acquisition operation according to the aerial photographing path; the data analysis module is used for executing processing analysis operation on the live image data; the model construction module is used for constructing a surface three-dimensional model and an underground three-dimensional model according to the analysis result of the data analysis module; the model integration module is used for integrating the surface three-dimensional model and the underground three-dimensional model to obtain a power pipeline model; the visualization module is used for performing a visualization operation on the power pipeline model.
In a third aspect, there is provided a power pipeline full space information flow rendering device based on oblique photography, the device comprising: a processor and a memory storing computer program instructions; wherein the processor, when reading and executing the computer program instructions, implements the power pipeline full space information flow rendering method of the first aspect or some of the realizable forms of the first aspect.
In a fourth aspect, a computer storage medium is provided, on which computer program instructions are stored which, when executed by a processor, implement the method for rendering a power pipeline full-space information stream based on oblique photography in the first aspect or some of the realizations of the first aspect.
The beneficial effects are that: the invention provides a method and a system for presenting full-space information flow of an electric power pipeline based on oblique photography, which are characterized in that live-action three-dimensional scene model data and monomer vector data are obtained by fusing oblique photography measurement technology, and then the live-action three-dimensional scene model data and the monomer vector data are combined with three-dimensional pipeline information to construct three-dimensional scene integration of full-space information of the electric power pipeline, so that a user can rapidly correspond to position information of pipe network elements in the display world according to characteristics of overground layers, the readability of the pipe network model is improved, and meanwhile, the positioning and the identification of a pipe network are facilitated.
Secondly, the terrain generated by the digital elevation model and the orthophoto is used as a substrate to create a realistic sense of the three-dimensional environment, and meanwhile, the data of the building model, the place name road, the auxiliary facilities and the like are fused in the three-dimensional scene to construct a three-dimensional layer, and the three-dimensional layer and the terrain are combined to jointly construct the overground part of the three-dimensional scene. After the digital elevation model is obtained, an irregular triangular net is adopted to load a three-dimensional terrain model as a background for displaying the three-dimensional model of the underground pipeline.
In addition, ground building and auxiliary facility models are added, the effect is vivid, and background support is provided for displaying the three-dimensional model of the underground pipeline.
And finally, constructing a three-dimensional scene at the browser end by using Cesium, loading live-action three-dimensional scene model data, monomerized vector data and three-dimensional pipeline data in the scene, and realizing the functions of model loading, browsing and interaction, attribute query, pipeline positioning and the like.
Drawings
FIG. 1 is a flow chart of data processing according to the present invention.
FIG. 2 is a flow chart of the present invention for generating a subsurface three-dimensional model.
FIG. 3 is a flow chart of the singulation data process of the present invention.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the invention.
Example 1
In one embodiment, during the daily management and maintenance of power pipeline resources, the representation and management of the pipeline is typically presented in a two-dimensional graphical form, and in a conventional two-dimensional pipeline diagram, the representation and management of the pipeline is performed using only a combination of two-dimensional punctuation and linear symbols. Because a large number of pipelines are crowded together, different types of pipelines cannot be clearly displayed on a two-dimensional pipeline diagram, and the readability of the two-dimensional pipeline diagram is reduced. Therefore, the implementation aims at the problem that the two-dimensional information is difficult to meet the presentation requirement of the space information, and the whole space information flow presentation method of the electric pipeline based on oblique photography is provided, and the pipeline buried underground is presented in a three-dimensional model mode through three-dimensional visualization operation on pipeline data, so that a user can intuitively know the complex space distribution among the pipelines.
As shown in fig. 1, the power pipeline full-space information flow presentation method based on oblique photography includes the steps of:
step 1, acquiring position information of an area to be analyzed according to analysis requirements, and planning an unmanned aerial vehicle aerial photographing route according to the position information;
specifically, in the process of planning an aerial photographing path of the unmanned aerial vehicle, the position characteristics of an area to be analyzed are considered, and the battery capacity, the flying height, the flying performance and the current environment state of the unmanned aerial vehicle are combined; and then, constructing a flight route of the unmanned aerial vehicle by combining the self characteristics, the environmental characteristics and the flight performance of the unmanned aerial vehicle of the area.
Optionally, data collection is performed first, when data collection is performed, at least topographic information, environmental information and parameter information of the unmanned aerial vehicle are required to be acquired, then, the acquired data information is analyzed, stress of the unmanned aerial vehicle in navigation is determined, how the unmanned aerial vehicle is to be controlled in navigation is determined, and an unmanned aerial vehicle oblique photography route is formulated according to the determined stress of the unmanned aerial vehicle in navigation.
Optionally, at least two sensors for realizing oblique photography are carried around the unmanned aerial vehicle, the sensors are distributed around the unmanned aerial vehicle in an equidistance surrounding mode, and in the process of implementing oblique photography, the aerial photography path of the unmanned aerial vehicle is implemented in a mode that oblique photography images photographed by the sensors are combined with the visual angles of the sensors.
Step 2, the unmanned aerial vehicle executes live-action oblique photography according to the aerial photography route, and live-action image data are obtained and stored;
step 3, reading live-action shooting data and executing data preprocessing to obtain optimized live-action image data;
specifically, preprocessing is performed on live-action image data through image enhancement and image restoration operations, and optimized live-action image data is obtained. The live-action image data is clearer through image enhancement processing, the image data which is more fit with the subsequent analysis requirement is obtained, meanwhile, the influence brought in the degradation process of less image data is reduced through image restoration processing, and the existence of interference factors is reduced.
Step 4, performing three-dimensional model construction according to the optimized live-action image data to obtain a ground surface three-dimensional model;
specifically, an image mapping operation is performed on the optimized live-action image data to obtain oblique photographic image data, and an integrity judgment is performed on the oblique photographic image data to obtain an integrity judgment result. When the integrity judgment result is complete, performing aerial triangulation in the oblique photographic image data to obtain aerial triangulation information, obtaining azimuth elements in the oblique photographic image data after analyzing the oblique photographic image data, and establishing a ground surface three-dimensional model according to the obtained azimuth elements.
Step 5, obtaining design specifications and technical data of underground pipelines in the area to be analyzed, and establishing an underground three-dimensional model;
in particular, since the underground situation is more complex than the ground, the two-dimensional pipeline diagram adopted in the prior art presents a phenomenon that a large number of pipelines are crowded together in the pipeline expression, and the readability is insufficient to meet the actual application requirements. In order to meet the practical application requirements, pipeline distribution information in the underground pipeline design specification and technical data is read, and an underground three-dimensional model containing the pipeline distribution information is built. Optionally, pipeline distribution information includes, but is not limited to, pipeline location information, burial depth, material, and type.
In performing the construction of the subsurface three-dimensional model, the following steps are included as shown in fig. 2:
step 5.1, reading the data materials of the related pipelines in the current analysis area from a database for recording the underground data entities;
step 5.2, analyzing the pipeline data material to obtain modeling parameters;
step 5.3, traversing modeling parameters, and judging whether the current parameters are pipeline parameters or not;
step 5.4, if the pipeline parameters are the pipeline parameters, rendering the pipeline parameters to obtain three-dimensional pipeline data;
and 5.5, carrying out parameterized modeling according to the three-dimensional pipeline data construction to obtain the underground three-dimensional model.
Step 6, integrating the surface three-dimensional model and the underground three-dimensional model to obtain a power pipeline model;
specifically, the electric power pipeline model is obtained by performing relational connection through the monomerized reference object and integrating surface and underground data based on the monomerized reference object.
And 7, constructing a visualization platform, executing a rendering mode loaded on demand on the visualization platform, and performing the visualization operation of the power pipeline model.
The embodiment provides a whole-space information flow presentation method of an electric power pipeline based on oblique photography, which adopts the oblique photography to realize the construction of a three-dimensional scene of the earth surface, and adopts a mode of combining the three-dimensional scene with two-dimensional data to realize the analysis of an underground electric power pipeline so as to construct an underground three-dimensional scene model. By analyzing the ground and the low power pipeline, a three-dimensional power pipeline model convenient for user identification is constructed, so that the user can intuitively know the complex spatial distribution of the pipeline.
Example two
In a further embodiment based on the first embodiment, in constructing the three-dimensional model of the earth surface, acquisition of oblique photographing data is performed by an unmanned aerial vehicle carrying five lenses, and the land feature and land feature image data, the orthographic image data and the position information of the region to be analyzed are acquired from the vertical and oblique directions, respectively. The positions of the lenses are arranged at the position right below, and the rest lenses are distributed around the unmanned aerial vehicle in an equidistant mode and are used for obtaining image information in the inclined direction. Then, for the acquired oblique image information, a surface three-dimensional model is generated through operations of image data processing, joint adjustment, dense matching and texture mapping.
Specifically, the image data processing process is used for executing deviation processing on image data collected by the unmanned aerial vehicle, and optionally, the deviation processing process includes: performing polarization and color shift processing on the color deviation; performing rejection processing on poor image data quality; performing re-acquisition operation on unqualified image data; and correcting the deviation of the visual angle.
Because the image data collected by the unmanned aerial vehicle comprises the inclined image and the vertical image, all traditional aerial triangulation is difficult to process the image data collected by the unmanned aerial vehicle, a multi-view image joint adjustment processing mode is adopted, the geometric deformation and shielding relation between the images are fully considered, automatic matching of the same-name points of the images and free net beam adjustment are completed according to the inner azimuth element and the outer azimuth element, and the matching result of the same-name points with higher reliability is obtained. And then, establishing an area network adjustment error equation containing the connection points, the connection lines, the control point coordinates and POS data, and obtaining an adjustment result with higher precision through joint calculation.
Based on the data after the joint adjustment, adopting an image matching algorithm to obtain homonymy points of all images, and further obtaining more characteristic points on the images; then, carrying out feature point matching according to the similarity of the feature points, and constructing a sparse point cloud; and finally, obtaining dense point cloud through point cloud preprocessing.
And constructing an irregular triangular grid after reconstructing the surface of the dense point cloud, generating a white film, and finally automatically mapping texture information onto the corresponding white film to form a three-dimensional model based on oblique image data.
In a preferred embodiment, according to practical application requirements, the related oblique photography three-dimensional modeling software such as Street factor, context Capture, photo Mesh or Pix4D is selected, oblique photography data acquired by an unmanned aerial vehicle is imported, then the selected oblique photography three-dimensional modeling software performs multi-view image joint adjustment according to the relation between images, and through image dense matching, point cloud thin-film construction and finally texture automatic mapping, a three-dimensional model of the earth surface is obtained.
According to the embodiment, the acquired image data is processed and analyzed according to the three-dimensional visual requirement on the ground, so that the ground surface live-action achievement of the landmark in the current area is obtained.
Example III
In a further embodiment based on the first embodiment, the ground surface three-dimensional model constructs the real shape and position of the ground feature elements, but the ground surface three-dimensional model is represented by a continuous irregular triangle network, and cannot be separately categorized for different ground feature types, which is not beneficial to subsequent space query and analysis operations, so that each object managed in the whole model is separately executed by the embodiment, and separation and selection are executed for each object by a monomerization processing mode.
Specifically, the complete contour information of the target entity is obtained by performing image binarization, vegetation noise removal, hole filling and other treatments on the power pipeline model to be analyzed, the three-dimensional model is read, and projection is performed to obtain the coordinate information of the target ground object. And establishing a transparent bounding box based on the obtained contour and coordinate information to realize the dynamic singulation of the three-dimensional model.
Alternatively, as shown in fig. 3, the power line model is first read, and model cutting is performed to obtain digital orthophoto data; then, performing image binarization, vegetation noise removal and hole filling image data processing operations on the digital orthographic image data to obtain the outline of the target object; generating model bounding box data according to the outline of the target object; and finally, superposing the bounding box data into the power pipeline model, thereby obtaining a monomerized power pipeline model meeting the selected requirements.
In a preferred embodiment, binarizing the obtained digital orthophoto data, and then selecting a proper threshold value to change the gray value in the original image so as to achieve the purpose of highlighting the feature of the feature to be expressed; then, aiming at the problem that vegetation noise influences exist around the target ground object, gray processing is carried out, and the part of the green channel exceeding the threshold value is eliminated by setting the threshold value, so that gray image data are obtained; then, vectorizing the image data subjected to binarization and graying, so as to obtain contour information of the digital orthophoto data on drinks; finally, a stereoscopic bounding box is established based on the fall information.
Optionally, a physical segmentation method is used to separate and select different types of ground objects.
Optionally, a tag ID method is used to separate and select different types of features.
Optionally, a dynamic inclusion rendering method is used to separate and select different types of features.
According to the embodiment, the three-dimensional model constructed based on the live-action image is optimized, different ground object types are independently and respectively classified through extraction of the monomerized information, so that subsequent space query and analysis operation is facilitated to be improved, and information such as the monomerized target form and color is more intuitively displayed.
Example IV
In a further embodiment on the basis of the first embodiment, the constructed visualization platform includes: a user interaction interface, a functional module and a rendering engine.
Specifically, a Cesium rendering engine is adopted for constructing a visual platform aiming at a constructed power pipeline model, a user interaction interface adopts JavaScript, CSS, HTML and other editing languages for performing functions, styles and interaction structure design, and a component and container layout of a view layer is designed by combining vue, and then a Cesium visual environment is configured, so that loading of a 3Dtiles live-action three-dimensional model, a vector image layer and an orthographic image can be realized.
The cenium rendering engine mainly comprises four layers, namely a Core (Core), a renderer (Render), a Scene (Scene) and a Dynamic Scene (Dynamic Scene). The core provides some common mathematical operations such as matrix vector operation, coordinate system conversion, map projection and the like; the renderer encapsulates a rendering method of the Web GL, can realize coordinate transformation of three-dimensional space data, projects the three-dimensional space data to a two-dimensional screen and performs rendering display; the main function of the scene is to store the primitives and the three-dimensional model; the dynamic scene is that a time axis is added into the scene, so that elements in the scene dynamically change along with time.
Optionally, in the process of performing visualization, core components such as a Vierwer class, a Scene class, a Primive class and the like of the Cesium engine are mainly adopted. Wherein the Vierwer class is a Cesium renderer core function for generating a view; the Scene class is a container of all three-dimensional objects; the pritive class is a basic drawing Primitive in a three-dimensional scene.
Optionally, when the user is browsing the power pipeline model, the three-dimensional visual angle can be reduced and enlarged through the mouse wheel, so that the three-dimensional real scene of the power pipeline distribution can be observed. In a further embodiment, the marking of different buildings is accomplished by means of a marking, so that subsequent data searching is facilitated. In the preferred embodiment, canvas in Cesium is adopted to draw the character of the mark and the pattern, and the character icon is rendered on the central coordinate point by combining with the Billboard, so that the effect of marking the building is achieved. Since the phenomenon of mutual covering caused by the text annotation rendering conflict occurs when zooming the view, the embodiment checks whether the annotation conflicts by traversing the billboards collection.
In the embodiment, for the three-dimensional coordinates of the starting point and the ending point of the central line and the radius of the pipeline at the position of the known underground pipeline connecting component, a mathematical class method is adopted to carry out mathematical abstraction on the pipeline points in the underground pipe network, and the pipeline connecting component with a regular surface is subjected to three-dimensional modeling. Different visualization modes are designed according to the differences of pipeline types and burial depths.
Example five
In one embodiment, a system for presenting a power pipeline full-space information stream based on oblique photography is provided, for implementing the power pipeline full-space information stream presenting method based on oblique photography mentioned in the first embodiment, and the system includes the following modules: the system comprises a path planning module, a data acquisition module, a data analysis module, a model construction module, a model integration module and a visualization module.
Specifically, the path planning module is used for planning an aerial photographing path of the unmanned aerial vehicle according to the position information of the area within the range of the area to be analyzed according to the actual demand; the data acquisition module is used for performing aerial photographing data acquisition according to the aerial photographing path planned by the path planning module to obtain live-action image data; the data analysis module is used for processing and analyzing the live-action image data acquired by the data acquisition module; the model construction module is used for constructing a three-dimensional model of the earth surface according to the analysis result of the data analysis module and constructing the three-dimensional model of the underground according to the design specification and technical data of the underground pipeline; the model integration module is used for integrating the surface three-dimensional model and the underground three-dimensional model to obtain a power pipeline model; the visualization module is used for presenting the power pipeline model.
When the method for presenting the full-space information flow of the power pipeline is executed, firstly, planning an aerial photographing path of the unmanned aerial vehicle by utilizing a path planning module according to the position information of the area to be presented; secondly, a data acquisition module performs live-action image data acquisition operation on the planned aerial photographing path by using an unmanned aerial vehicle, and performs data storage; thirdly, processing and analyzing the live-action image data by utilizing a data analysis module to obtain optimized live-action image data, constructing a ground surface three-dimensional model by utilizing a model construction module based on the optimized live-action image data, and simultaneously, constructing an underground three-dimensional model corresponding to the ground surface three-dimensional model based on underground pipeline design specifications and technical data; secondly, executing the integration operation of the surface three-dimensional model and the underground three-dimensional model by using a model integration module to obtain a power pipeline model corresponding to the surface and the underground; and finally, constructing a visual platform by utilizing a visual module, and presenting the power pipeline model through rendering operation loaded according to the requirement.
Optionally, the visualization module of the system adopts Cesium to render the three-dimensional live-action model and load the monomer vector data, further combines the data storage and management of the rear end and the space analysis function, outputs the analysis result and renders the analysis result to the front end of Cesium for display, and realizes the space analysis function based on the Cesium frame.
Example six
In one embodiment, a power pipeline full space information flow presentation based on oblique photography is presented, the apparatus comprising: a processor and a memory storing computer program instructions; the processor reads and executes the computer program instructions to implement the power pipeline full-space information flow presenting method based on oblique photography as set forth in the first embodiment.
In particular, the electronic device includes a computer in various forms of state, including, but not limited to: laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. In addition, the electronic device can also be presented in various forms of mobile devices, such as computer devices, e.g., cellular phones, smartphones, wearable devices, etc.
Optionally, the device for automatically generating the electronic report further comprises components for realizing different functions, and the components are connected to the I/O interface through buses. Wherein the functional components include, but are not limited to: an input unit, an output unit, a storage unit, and a communication unit, the input unit such as a mouse and a keyboard; output units such as different types of displays, speakers; storage units such as magnetic disks and optical disks; communication units such as network cards, modems, wireless communication transceivers.
Wherein the communication unit is arranged to enable data transmission of the electronic device with other target objects, optionally exchanging information/data with other devices via a computer network, such as the internet, and/or various telecommunication networks.
Example seven
In one embodiment, a computer-readable storage medium having computer program instructions stored thereon is presented; the computer program instructions, when executed by the processor, implement the power pipeline full-space information flow presenting method based on oblique photography set forth in the first embodiment.
In particular, the computer program instructions stored on the readable storage medium are implemented in one or more turn-to-language according to actual needs. Alternatively, the computer program instructions may be loaded into the processor by a memory or a communication unit and perform the power pipeline full space information flow rendering method based on oblique photography upon triggering.
Alternatively, when the computer-readable storage medium is a medium having a specific form, it includes: machine-readable signal media and machine-readable storage media, machine-readable signal media include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
As described above, although the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The power pipeline full-space information flow presentation method based on oblique photography is characterized by comprising the following steps of:
acquiring position information of an area to be analyzed according to analysis requirements, and planning an unmanned aerial vehicle aerial photographing route according to the position information;
the unmanned aerial vehicle executes live-action oblique photography according to the aerial photography route, and live-action image data are obtained and stored;
preprocessing the live-action image data and executing data to obtain optimized live-action image data, and executing three-dimensional model construction according to the optimized live-action image data to obtain a ground surface three-dimensional model;
acquiring the design specification and technical data of an underground pipeline of a region to be analyzed, and establishing an underground three-dimensional model;
integrating the surface three-dimensional model and the underground three-dimensional model to obtain a power pipeline model;
and constructing a visual platform, executing a rendering operation loaded on demand on the visual platform, and presenting the power pipeline model.
2. The method for presenting the full-space information flow of the power pipeline based on the oblique photography according to claim 1, wherein in the process of performing aerial photography path planning, a flight route of the unmanned aerial vehicle is constructed by combining the self characteristics and the environmental characteristics of the area to be analyzed and the flight performance of the unmanned aerial vehicle;
meanwhile, in the process of performing live-action oblique photography according to the aerial photography route, at least two sensors for realizing oblique photography are mounted on the periphery of the unmanned aerial vehicle, and live-action image data are obtained in a mode of combining oblique photography images photographed by the sensors with the view angles of the sensors.
3. The method for presenting the full-space information flow of the power pipeline based on oblique photography as claimed in claim 1, wherein the process of constructing the three-dimensional model of the earth surface comprises the following steps:
reading live-action image data, and executing image enhancement and image restoration operations to obtain optimized live-action image data;
performing image mapping on the optimized live-action image data to obtain oblique photographic image data;
carrying out integrity judgment on the oblique photographic image data finger to obtain an integrity judgment result;
when the integrity judgment result is complete, performing aerial triangulation in the oblique photographic image data to obtain aerial triangulation information; simultaneously executing the analysis of the oblique photographic image data to obtain azimuth elements in the oblique photographic image data;
and building a surface three-dimensional model according to the azimuth element.
4. The method for presenting the full-space information flow of the power pipeline based on oblique photography as claimed in claim 1, wherein the process of constructing the underground three-dimensional model comprises the following steps:
reading the data materials of the related pipelines in the current analysis area from a database for recording the underground data entities;
analyzing the pipeline data material to obtain modeling parameters;
traversing the modeling parameters and judging whether the current parameters are pipeline parameters or not;
if the judging result is the pipeline parameter, rendering the pipeline parameter to obtain three-dimensional pipeline data;
and carrying out parameterized modeling according to the three-dimensional pipeline data construction to obtain an underground three-dimensional model.
5. The method for presenting the full-space information flow of the electric pipeline based on the oblique photography according to claim 1, wherein the surface three-dimensional model and the underground three-dimensional model are in a mode corresponding to each other, are connected through a monomerized reference object, and integrate surface and underground data based on the monomerized reference object to obtain the electric pipeline model; the singulation references include: location information, entity building category.
6. The oblique photography-based power pipeline full space information stream rendering method of claim 1, wherein the extraction of the individualized information of the different entities is performed based on the building contour and the location information in the power pipeline model; based on the extraction result of the monomer information, the different entities are separately classified; based on the respective classification results, the power pipeline model can be selected, queried and managed by the visualization platform.
7. The method of claim 6, wherein performing different entity singulation comprises:
acquiring digital orthophoto data corresponding to the power line model;
performing image enhancement and image denoising processing on the digital orthophoto data, and performing object contour extraction based on a processing result to obtain object contour information;
establishing a transparent bounding box based on the outline information of the target object;
and superposing the transparent bounding box into the power pipeline model to obtain the monomer power pipeline model meeting the requirements.
8. A power pipeline full space information flow presentation system based on oblique photography for implementing the power pipeline full space information flow presentation method based on oblique photography as claimed in any one of claims 1 to 7, comprising the following modules:
the path planning module is arranged for planning an aerial photographing path of the unmanned aerial vehicle according to the position information of the area to be analyzed;
the data acquisition module is arranged to execute live image data acquisition operation according to the aerial photographing path;
a data analysis module configured to perform a processing analysis operation on the live image data;
the model construction module is used for constructing a surface three-dimensional model and an underground three-dimensional model according to the analysis result of the data analysis module;
the model integration module is used for integrating the surface three-dimensional model and the underground three-dimensional model to obtain a power pipeline model;
a visualization module is configured to perform a visualization operation on the power pipeline model.
9. A tilt photography-based power pipeline full-space information stream rendering device, the device comprising:
a processor and a memory storing computer program instructions;
the processor reads and executes the computer program instructions to implement the tilt-photography based power pipeline full-space information stream rendering method of any of claims 1-7.
10. A computer readable storage medium, having stored thereon computer program instructions, which when executed by a processor, implement the tilt-photography based power pipeline full-space information stream presentation method of any of claims 1-7.
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