CN107564402B - Drawing electronic map method and device - Google Patents
Drawing electronic map method and device Download PDFInfo
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- CN107564402B CN107564402B CN201711048606.2A CN201711048606A CN107564402B CN 107564402 B CN107564402 B CN 107564402B CN 201711048606 A CN201711048606 A CN 201711048606A CN 107564402 B CN107564402 B CN 107564402B
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Abstract
The present invention provides a kind of drawing electronic map method and device.The described method includes: obtaining the original image and administrative division information of target drawing area；It is acquired based on elevation information of the original image to atural object element each in target drawing area, obtains corresponding elevation information；Vector quantization acquisition is carried out based on classification information of the original image to earth's surface element each in target drawing area, obtains corresponding vector quantization data；According to the corresponding elevation information of all atural object elements and the corresponding vector quantization data of all earth's surface elements, the map frame of target drawing area is drawn out, and information association is carried out based on administrative division information to map frame, obtains corresponding initialization map；Data inspection is carried out to initialization map, and map amendment is carried out to initialization map according to inspection result, obtains corresponding electronic map.The method resource consumption is small, and mapping difficulty is low, and drafting is high-efficient, can provide a user the high electronic map for drawing precision.
Description
Technical field
The present invention relates to Electronic Mapping technical fields, in particular to a kind of drawing electronic map method and dress
It sets.
Background technique
With the continuous development of science and technology and continuous improvement of people's living standards, electronic map it is accurate with its data,
Update cycle is short, can carry out intuitively the advantages such as showing to information such as atural object geomorphic feature, road information, building constructions, in people
Daily life in the status that occupies also ever more important.Therefore, to the Electronic Mapping technology for surveying and drawing electronic map
For, how to improve the drafting efficiency of electronic map and draw precision, is a particularly important problem.
For now, industry major flow adjusts the mode drawn to each in target drawing area frequently with the measurement of artificial field operation
The related data of building measures, to be carried out based on electronic map of the related data measured to target drawing area
It draws.But this mode human resources consumption is big, and amount of surveying and mapping work is big, and mapping low efficiency, mapping precision is not high, shadow
User is rung to the usage experience of electronic map.
Summary of the invention
In order to overcome above-mentioned deficiency in the prior art, the purpose of the present invention is to provide a kind of drawing electronic map methods
And device, drawing electronic map method human resources consumption is small, and mapping difficulty is small, and mapping is high-efficient, can to
Family provides the high electronic map for drawing precision, improves user experience.
For drawing electronic map method, preferred embodiments of the present invention provide a kind of drawing electronic map method.Institute
The method of stating includes:
Obtain the original image and administrative division information of target drawing area；
It is acquired, is obtained based on elevation information of the original image to each atural object element in the target drawing area
To the corresponding elevation information of the atural object element；
Vector quantization is carried out based on classification information of the original image to each earth's surface element in the target drawing area
Acquisition, obtains the corresponding vector quantization data of the earth's surface element；
According to the corresponding elevation information of all atural object elements and the corresponding vector quantization data of all earth's surface elements, institute is drawn out
The map frame of target drawing area is stated, and information association is carried out to the map frame based on the administrative division information, is obtained
To initialization map corresponding with the target drawing area；
Data inspection is carried out to the initialization map, and map is carried out to the initialization map according to inspection result and is repaired
Just, electronic map corresponding with the target drawing area is obtained.
For drawing electronic map device, preferred embodiments of the present invention provide a kind of drawing electronic map device.Institute
Stating device includes:
Area information obtains module, for obtaining the original image and administrative division information of target drawing area；
Geophysical information collecting module, for based on the original image to each atural object element in the target drawing area
Elevation information be acquired, obtain the corresponding elevation information of the atural object element；
Earth's surface information acquisition module, for based on the original image to each earth's surface element in the target drawing area
Classification information carry out vector quantization acquisition, obtain the corresponding vector quantization data of the earth's surface element；
Initial map drawing module, for corresponding according to the corresponding elevation information of all atural object elements and all earth's surface elements
Vector quantization data, draw out the map frame of the target drawing area, and based on the administrative division information to describedly
Picture frame frame carries out information association, obtains initialization map corresponding with the target drawing area；
Electronic map correction module, for carrying out data inspection to the initialization map, and according to inspection result to institute
It states initialization map and carries out map amendment, obtain electronic map corresponding with the target drawing area.
In terms of existing technologies, the drawing electronic map method and device that preferred embodiments of the present invention provide has
Below the utility model has the advantages that drawing electronic map method human resources consumption is small, mapping difficulty is small, and mapping is high-efficient, energy
The high electronic map for drawing precision is enough provided a user, user experience is improved.Specifically, the method is drawn by obtaining target
After the original image and administrative division information in region, based on the original image respectively to the various regions in the target drawing area
The vector quantization data of the elevation information of object element and each earth's surface element are acquired, and obtain the corresponding elevation letter of all atural object elements
Breath and the corresponding vector quantization data of all earth's surface elements；Based on the corresponding elevation information of all atural object elements and all earth's surface elements
Corresponding vector quantization data draw out the map frame of the target drawing area, and based on the administrative division information to institute
It states map frame and carries out information association, obtain initialization map corresponding with the target drawing area；By to described initial
Change map and carry out data inspection, and map amendment is carried out to the initialization map according to inspection result, obtains corresponding height and draw
The electronic map of precision processed improves the map usage experience of user.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, present pre-ferred embodiments are cited below particularly,
And cooperate appended attached drawing, it is described in detail below.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of the claims in the present invention protection scope, for those of ordinary skill in the art, what is do not made the creative labor
Under the premise of, it can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 is a kind of flow diagram for the drawing electronic map method that preferred embodiments of the present invention provide.
Fig. 2 is a kind of flow diagram for the sub-step that the step S220 in Fig. 1 includes.
Fig. 3 is a kind of flow diagram for the sub-step that the step S230 in Fig. 1 includes.
Fig. 4 is a kind of flow diagram for the sub-step that the step S250 in Fig. 1 includes.
Fig. 5 is a kind of block diagram for the drawing electronic map device that preferred embodiments of the present invention provide.
Fig. 6 is a kind of block diagram of geophysical information collecting module shown in Fig. 5.
Fig. 7 is a kind of block diagram of earth's surface information acquisition module shown in Fig. 5.
Fig. 8 is a kind of block diagram of electronic map correction module shown in Fig. 5.
Icon: 100- drawing electronic map device；110- area information obtains module；120- geophysical information collecting module；
121- model construction submodule；122- elevation acquires submodule；130- earth's surface information acquisition module；131- re-projection submodule；
132- vector quantization acquires submodule；The initial map drawing module of 140-；150- electronic map correction module；151- checks amendment
Module；152- is distributed adjusting submodule.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
How to provide that a kind of consumption of human resources is small, and mapping difficulty is low, and mapping is high-efficient, can provide a user height
The electronic map for drawing precision, so that improving the drawing electronic map method of user experience is to those skilled in the art
Technical problem urgently to be solved.
With reference to the accompanying drawing, it elaborates to some embodiments of the present invention.In the absence of conflict, following
Feature in embodiment and embodiment can be combined with each other.
Fig. 1 is please referred to, is a kind of flow diagram for the drawing electronic map method that preferred embodiments of the present invention provide.
In embodiments of the present invention, the drawing electronic map method human resources consumption is small, and mapping difficulty is low, can be by target
The original image for surveying and drawing region carries out the mode of image procossing, accordingly gets all atural objects in target mapping region and wants
Plain corresponding elevation information and the corresponding vector quantization data of all earth's surface elements, are based on the elevation information, the vector quantization number
According to and the administrative division information in target mapping region draw out corresponding initialization map, and to the initialization map
After carrying out map amendment, the corresponding high electronic map for drawing precision is obtained, to improve the map usage experience of user.Below
The detailed process and step of drawing electronic map method shown in FIG. 1 are described in detail.
In embodiments of the present invention, the drawing electronic map method the following steps are included:
Step S210 obtains the original image and administrative division information of target drawing area.
In the present embodiment, the original image of the target drawing area is passes through corresponding with the target drawing area
It takes photo by plane, the image that takes of modes, the original image such as satellite shooting can characterize the landform knot of the target drawing area
Structure, the original image can be satellite image, be also possible to Aerial Images.In an embodiment of the present embodiment, institute
Stating original image is satellite image.
In the present embodiment, the administrative division information of the target drawing area includes respectively building in the target drawing area
Object information, each road information and ecological environment distributed intelligence are built, the administrative division information of the target drawing area can characterize
The position distribution situation of the target drawing area.
Step S220, based on the original image to the elevation information of each atural object element in the target drawing area into
Row acquisition, obtains the corresponding elevation information of the atural object element.
In the present embodiment, the atural object element in the target drawing area includes the building in the target drawing area
Object, road, lake etc., the elevation information can characterize elevational point of the corresponding atural object element in the target drawing area
Location information, the elevation information obtain corresponding atural object in combination with the location information of the ground point in the target drawing area and want
The elevation information of element.
It referring to figure 2., is a kind of flow diagram for the sub-step that the step S220 in Fig. 1 includes.In the present embodiment,
The step S220 may include the detailed of sub-step S221 and sub-step S222, the sub-step S221 and the sub-step S222
Shown in being carefully described as follows:
Sub-step S221 carries out sky three to the original image and encrypts, and based on the empty three encrypted original images
Construct three-dimensional model corresponding with the target drawing area.
In the present embodiment, three encryption of sky is that a kind of pair of image based on aerial triangulation technology selectes pass point to survey
Try the elevation of corresponding object and the measurement method of plan-position.The method can pass through the original graph to the target drawing area
Mode as carrying out three encryption of sky is got the plan-position of each things in the target drawing area, and is encrypted based on sky three
The original image afterwards constructs three-dimensional model corresponding with the target drawing area, to be obtained by the three-dimensional model
The elevation information of each atural object element in the target drawing area.
Sub-step S222 carries out space image to each atural object element in the target drawing area based on the three-dimensional model
To acquisition, elevation information corresponding with the atural object element is obtained.
In the present embodiment, the method can be wanted by extracting each atural object from the target drawing area three-dimensional model
The corresponding threedimensional model of element, and stereogram is carried out based on elevation information of the threedimensional model to corresponding atural object element
Acquisition, to obtain the corresponding elevation information of each atural object element.
Step S230, based on the original image to the classification information of each earth's surface element in the target drawing area into
The acquisition of row vector quantization, obtains the corresponding vector quantization data of the earth's surface element.
In the present embodiment, the earth's surface element in the target drawing area includes each vegetation in the target drawing area
Overlay area, the division of each plane domain etc., the classification information are that each earth's surface element distinguishes mutual information, the vector quantization
Data can characterize plane distribution situation of the corresponding earth's surface element in the target drawing area.
It referring to figure 3., is a kind of flow diagram for the sub-step that the step S230 in Fig. 1 includes.In the present embodiment,
The step S230 may include the detailed of sub-step S231 and sub-step S232, the sub-step S231 and the sub-step S232
Shown in being carefully described as follows:
Step S231 carries out image re-projection to the original image, obtains corresponding projection information image.
In the present embodiment, the method is by carrying out image re-projection for the original image of the target drawing area
Mode all concludes different original images under the same coordinate system, obtains corresponding projection information image.
Step S232 believes the classification of each earth's surface element in the target drawing area based on the projection information image
Breath carries out vector quantization acquisition, obtains vector quantization data corresponding with the earth's surface element.
In the present embodiment, the method can the corresponding projection of the target drawing area in the case where obtaining the same coordinate system
After information image, the corresponding flat image of each earth's surface element is extracted from the projection information image, and be based on the plane
Image and the corresponding classification information of each earth's surface element are acquired the vector quantization data of corresponding earth's surface element, thus
To the corresponding vector quantization data of each earth's surface element.
In the present embodiment, the step S230 and the step S220 can be executes side by side, the step S220
During being performed, the step S230 can also be performed.
Step S240, according to the corresponding elevation information of all atural object elements and the corresponding vector quantization number of all earth's surface elements
According to drawing out the map frame of the target drawing area, and carry out to the map frame based on the administrative division information
Information association obtains initialization map corresponding with the target drawing area.
In the present embodiment, the method can get the corresponding height of all atural object elements in the target drawing area
After journey information and the corresponding vector quantization data of all earth's surface elements, to up and down view of all atural object elements in the three-dimensional model
Poor situation and match accuracy situation are checked, carry out mathematical accuracy, geographic accuracy to the vector quantization data of all earth's surface elements
And the evaluation of quality of drawing etc. geological measuring, so that it is guaranteed that the quality of the vector quantization data meets the item for drawing electronic map
Part.
In the present embodiment, the method is after completing to the inspection of all atural object elements and all earth's surface elements, by base
In the corresponding elevation information of the atural object element and the corresponding vector quantization data of the earth's surface element, draws out and drawn with the target
The corresponding map frame in region processed, and the administrative division information based on the target drawing area is to each point on the map frame
Cloth region carries out information association, to obtain initialization map corresponding with the target drawing area.
Step S250 carries out data inspection to the initialization map, and according to inspection result to the initialization map
Map amendment is carried out, electronic map corresponding with the target drawing area is obtained.
In the present embodiment, the initialization map can roughly characterize each building in the target drawing area
Specific distribution situation, but be to ensure that map is maintained in the state of high drafting precision, the method can be by the initialization
Map carries out data inspection, and according to the mode of the inspection result corresponding amendment initialization map, obtains corresponding amendment and complete
Obtained from electronic map corresponding with the target drawing area.
It specifically, referring to figure 4., is a kind of flow diagram for the sub-step that the step S250 in Fig. 1 includes.In this reality
It applies in example, the step S250 may include sub-step S251 and sub-step S252, the sub-step S251 and the sub-step
Being described in detail as follows for S252 is shown:
Sub-step S251 carries out data topology inspection to the initialization map according to the corresponding elevation information of each atural object element
It looks into, and the initialization map is modified based on target drawing area corresponding three-dimensional model.
In the present embodiment, described that data are carried out to the initialization map according to the corresponding elevation information of each atural object element
Topology checks, and the step of being modified based on the corresponding three-dimensional model of target drawing area to the initialization map includes:
Based on the corresponding elevation information of atural object element each in the initialization map, building in all atural object elements is obtained
Elevation information；
The detection of height decision rule is carried out to the elevation information, and is based on the corresponding three-dimensional model pair of target drawing area
The elevation information for not meeting the height decision rule is modified；
Data topology inspection is carried out to the modified initialization map of elevation information is completed, and is accordingly adjusted according to inspection result
The initialization map.
In the present embodiment, the elevation information of building can be believed by the elevation to each atural object element in all atural object elements
Breath carries out classification processing, to extract the corresponding elevation information of building element in all atural object elements, and by each building
The elevation information of object element and the terrestrial information of ground point carry out additive operation and obtain.The height decision rule is used for according to each
The elevation information of building element classifies to each building element, for example, if the height of a building element is less than 2m
When, determine that the elevation information of the building element is incorrect；If the height of a building element is greater than 20m and is less than 40m,
Determine that the building element is general city；If the height of a building element is greater than 40m and is less than 60m, determine that this is built
Building object element is skyscraper；If the height of a building element is greater than 60m and is less than 200m, the building element is determined
For super-high buildings；If the height of a building element is greater than 200m, determine that the elevation information of the building element is incorrect.
Therefore, the method can believe the height for not meeting the height decision rule based on the corresponding three-dimensional model of target drawing area
Breath is modified, to complete elevation information amendment.
In the present embodiment, the check item of the data topology inspection includes to the completion revised initialization of elevation information
Hitch point in map, the intersection of face face, segment-Facet intersection, multiple spot, the inspection for situations such as putting less, the method is in complete paired data topology
The initialization map will be adjusted based on the three-dimensional model after inspection, to complete to repair the initialization map
Just.
Step S252, to each atural object element on the revised initialization map and each earth's surface element in data plane
Distribution situation be adjusted, to obtain the electronic map.
In the present embodiment, it is described to each atural object element on the revised initialization map and each earth's surface element in number
It is adjusted according to the distribution situation in level, to obtain electronic map the step of includes:
According to the corresponding elevation information of each atural object element and the height decision rule, to the building in all atural object elements
Object is classified；
According to the classification results of building in all atural object elements and default atural object-ground surface type translation table, respectively built
Build vector quantization data of the object in the data plane where the vector quantization data of the earth's surface element；
It is right according to the corresponding elevation information of each building, vector quantization data and the corresponding vector quantization data of each earth's surface element
Data distribution on the initialization map is adjusted, and obtains corresponding electronic map.
In the present embodiment, the default atural object-ground surface type translation table is used to be tied according to the corresponding classification of atural object element
Fruit is the vector quantization data in the data plane where the vector quantization data of the earth's surface element of the atural object Key factor distribution one.Example
Such as, when the classification results of an atural object element are the super-high buildings that object code is 1, then the atural object element (super-high buildings) exists
The ground surface type in data plane where the vector quantization data of the earth's surface element is the city open ground that ground table code is 5,
To configure two layers of data surface for the atural object element, one of them is the atural object data surface for being specific to atural object element, another is
It is specific to the surface data face of earth's surface element.
It referring to figure 5., is a kind of box signal for the drawing electronic map device 100 that preferred embodiments of the present invention provide
Figure.In embodiments of the present invention, the drawing electronic map device 100 includes: that area information obtains module 110, terrestrial object information
Acquisition module 120, earth's surface information acquisition module 130, initial map drawing module 140 and electronic map correction module 150.
The area information obtains module 110, for obtaining the original image and administrative division information of target drawing area.
In the present embodiment, the area information, which obtains module 110, can execute the step S210 in Fig. 1, specifically hold
Row process can refer to above to the detailed description of step S210.
The geophysical information collecting module 120, for based on the original image to each in the target drawing area
The elevation information of atural object element is acquired, and obtains the corresponding elevation information of the atural object element.
In the present embodiment, the geophysical information collecting module 120 can execute the step S220 in Fig. 1, specifically hold
Row process can refer to above to the detailed description of step S220.
Specifically, Fig. 6 is please referred to, is a kind of block diagram of geophysical information collecting module 120 shown in Fig. 5.?
In the present embodiment, the geophysical information collecting module 120 may include model construction submodule 121 and elevation acquisition submodule
122。
The model construction submodule 121, for the original image carry out sky three encrypt, and based on sky three encryption after
The original image construct corresponding with target drawing area three-dimensional model.
In the present embodiment, the model construction submodule 121 can execute the sub-step S221 in Fig. 2, specifically hold
Row process can refer to the detailed description of above sub-paragraphs S221.
The elevation acquires submodule 122, for based on the three-dimensional model to the various regions in the target drawing area
Object element carries out stereogram acquisition, obtains elevation information corresponding with the atural object element.
In the present embodiment, the elevation acquisition submodule 122 can execute the sub-step S222 in Fig. 2, specifically hold
Row process can refer to the detailed description of above sub-paragraphs S222.
The earth's surface information acquisition module 130, for based on the original image to each in the target drawing area
The classification information of earth's surface element carries out vector quantization acquisition, obtains the corresponding vector quantization data of the earth's surface element.
In the present embodiment, the earth's surface information acquisition module 130 can execute the step S230 in Fig. 1, specifically hold
Row process can refer to above to the detailed description of step S230.
Specifically, Fig. 7 is please referred to, is a kind of block diagram of earth's surface information acquisition module 130 shown in Fig. 5.?
In the present embodiment, the earth's surface information acquisition module 130 may include re-projection submodule 131 and vector quantization acquisition submodule
132。
The re-projection submodule 131 obtains corresponding projection letter for carrying out image re-projection to the original image
Cease image.
In the present embodiment, the re-projection submodule 131 can execute the sub-step S231 in Fig. 3, specific to execute
Process can refer to the detailed description of above sub-paragraphs S231.
The vector quantization acquires submodule 132, for being based on the projection information image in the target drawing area
Each earth's surface element classification information carry out vector quantization acquisition, obtain vector quantization data corresponding with the earth's surface element.
In the present embodiment, the vector quantization acquisition submodule 132 can execute the sub-step S232 in Fig. 3, specifically
Implementation procedure can refer to the detailed description of above sub-paragraphs S232.
The initial map drawing module 140, for according to the corresponding elevation information of all atural object elements and all earth's surfaces
The corresponding vector quantization data of element draw out the map frame of the target drawing area, and are based on the administrative division information
Information association is carried out to the map frame, obtains initialization map corresponding with the target drawing area.
In the present embodiment, the initial map drawing module 140 can execute the step S240 in Fig. 1, specifically hold
Row process can refer to above to the detailed description of step S240.
The electronic map correction module 150 for carrying out data inspection to the initialization map, and is tied according to checking
Fruit carries out map amendment to the initialization map, obtains electronic map corresponding with the target drawing area.
In the present embodiment, the electronic map correction module 150 can execute the step S250 in Fig. 1, specifically hold
Row process can refer to above to the detailed description of step S250.
Specifically, Fig. 8 is please referred to, is a kind of block diagram of electronic map correction module 150 shown in Fig. 5.?
In the present embodiment, the electronic map correction module 150 may include checking amendment submodule 151 and distribution adjusting submodule
152。
Submodule 151 is corrected in the inspection, is used for according to the corresponding elevation information of each atural object element to the initialization ground
Figure carries out data topology inspection, and is modified based on the corresponding three-dimensional model of target drawing area to the initialization map.
In the present embodiment, the inspection amendment submodule 151 can execute the sub-step S251 in Fig. 4, specifically hold
Row process can refer to the detailed description of above sub-paragraphs S251.
The distribution adjusting submodule 152, for each atural object element and various regions on the revised initialization map
Distribution situation of the table element in data plane is adjusted, to obtain the electronic map.
In the present embodiment, the distribution adjusting submodule 152 can execute the sub-step S252 in Fig. 4, specifically hold
Row process can refer to the detailed description of above sub-paragraphs S252.
In conclusion in the drawing electronic map method and device that preferred embodiments of the present invention provide, the electronics
The consumption of method for drawing map human resources is small, and mapping difficulty is small, and mapping is high-efficient, can provide a user high drafting precision
Electronic map, improve user experience.Specifically, original image and administrative area of the method by acquisition target drawing area
After drawing information, based on the original image elevation information to each atural object element in the target drawing area and various regions respectively
The vector quantization data of table element are acquired, and obtain the corresponding elevation information of all atural object elements and all earth's surface elements are corresponding
Vector quantization data；Based on the corresponding elevation information of all atural object elements and the corresponding vector quantization data of all earth's surface elements, draw
The map frame of the target drawing area out, and information pass is carried out to the map frame based on the administrative division information
Connection, obtains initialization map corresponding with the target drawing area；By carrying out data inspection to the initialization map, and
Map amendment is carried out to the initialization map according to inspection result, the corresponding high electronic map for drawing precision is obtained, improves
The map usage experience of user.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of drawing electronic map method, after the original image and administrative division information for obtaining target drawing area,
It is characterized in that, which comprises
It is acquired based on elevation information of the original image to each atural object element in the target drawing area, obtains institute
State the corresponding elevation information of atural object element；
Vector quantization acquisition is carried out based on classification information of the original image to each earth's surface element in the target drawing area,
Obtain the corresponding vector quantization data of the earth's surface element；
According to the corresponding elevation information of all atural object elements and the corresponding vector quantization data of all earth's surface elements, the mesh is drawn out
Mark drawing area map frame, and based on the administrative division information to the map frame carry out information association, obtain with
The corresponding initialization map of the target drawing area；
Data inspection is carried out to the initialization map, and map amendment is carried out to the initialization map according to inspection result,
Obtain electronic map corresponding with the target drawing area.
2. the method according to claim 1, wherein described draw area to the target based on the original image
The step of elevation information of each atural object element in domain is acquired, and obtains the atural object element corresponding elevation information include:
Sky three is carried out to the original image to encrypt, and is drawn based on the encrypted original image building of sky three with the target
The corresponding three-dimensional model in region processed；
Stereogram acquisition is carried out to each atural object element in the target drawing area based on the three-dimensional model, is obtained and institute
State the corresponding elevation information of atural object element.
3. method according to claim 1 or 2, which is characterized in that described to be drawn based on the original image to the target
The classification information of each earth's surface element in region processed carries out vector quantization acquisition, obtains the corresponding vector quantization data of the earth's surface element
The step of include:
Image re-projection is carried out to the original image, obtains corresponding projection information image；
Vector quantization is carried out based on classification information of the projection information image to each earth's surface element in the target drawing area
Acquisition, obtains vector quantization data corresponding with the earth's surface element.
4. according to the method described in claim 2, it is characterized in that, it is described to the initialization map carry out data inspection, and
Map amendment is carried out to the initialization map according to inspection result, obtains electronic map corresponding with the target drawing area
The step of include:
Data topology inspection is carried out to the initialization map according to each atural object element corresponding elevation information, and is drawn based on target
The corresponding three-dimensional model in region processed is modified the initialization map；
To the distribution situation of each atural object element and each earth's surface element in data plane on the revised initialization map into
Row adjustment, to obtain the electronic map.
5. according to the method described in claim 4, it is characterized in that, it is described according to the corresponding elevation information of each atural object element to institute
It states initialization map and carries out data topology inspection, and based on the corresponding three-dimensional model of target drawing area to the initialization map
The step of being modified include:
Based on the corresponding elevation information of atural object element each in the initialization map, the height of building in all atural object elements is obtained
Spend information；
The detection of height decision rule is carried out to the elevation information, and based on the corresponding three-dimensional model of target drawing area to not being inconsistent
The elevation information for closing the height decision rule is modified；
To completing elevation information modified initialization map progress data topology inspection, and described in accordingly being adjusted according to inspection result
Initialize map.
6. according to the method described in claim 5, it is characterized in that, described to each atural object on the revised initialization map
The distribution situation of element and each earth's surface element in data plane is adjusted, and to obtain electronic map the step of includes:
According to the corresponding elevation information of each atural object element and the height decision rule, to the building in all atural object elements into
Row classification；
According to the classification results of building in all atural object elements and default atural object-ground surface type translation table, each building is obtained
Vector quantization data in the data plane where the vector quantization data of the earth's surface element；
According to the corresponding elevation information of each building, vector quantization data and the corresponding vector quantization data of each earth's surface element, to described
Data distribution on initialization map is adjusted, and obtains corresponding electronic map.
7. a kind of drawing electronic map device, described device includes the original image and administrative area for obtaining target drawing area
The area information for drawing information obtains module, which is characterized in that described device further include:
Geophysical information collecting module, for the height based on the original image to each atural object element in the target drawing area
Journey information is acquired, and obtains the corresponding elevation information of the atural object element；
Earth's surface information acquisition module, for point based on the original image to each earth's surface element in the target drawing area
Category information carries out vector quantization acquisition, obtains the corresponding vector quantization data of the earth's surface element；
Initial map drawing module, for according to the corresponding elevation information of all atural object elements and the corresponding arrow of all earth's surface elements
Quantized data draws out the map frame of the target drawing area, and based on the administrative division information to described ground picture frame
Frame carries out information association, obtains initialization map corresponding with the target drawing area；
Electronic map correction module, for carrying out data inspection to the initialization map, and according to inspection result to described first
Beginningization map carries out map amendment, obtains electronic map corresponding with the target drawing area.
8. device according to claim 7, which is characterized in that the geophysical information collecting module includes:
Model construction submodule is encrypted for carrying out sky three to the original image, and encrypted described original based on sky three
Picture construction three-dimensional model corresponding with the target drawing area；
Elevation acquires submodule, for being stood based on the three-dimensional model to each atural object element in the target drawing area
Body image obtains elevation information corresponding with the atural object element to acquisition.
9. device according to claim 7, which is characterized in that the earth's surface information acquisition module includes:
Re-projection submodule obtains corresponding projection information image for carrying out image re-projection to the original image；
Vector quantization acquire submodule, for based on the projection information image to each earth's surface element in the target drawing area
Classification information carry out vector quantization acquisition, obtain vector quantization data corresponding with the earth's surface element.
10. device according to claim 7, which is characterized in that the electronic map correction module includes:
It checks amendment submodule, is opened up for carrying out data to the initialization map according to the corresponding elevation information of each atural object element
Inspection is flutterred, and the initialization map is modified based on target drawing area corresponding three-dimensional model；
It is distributed adjusting submodule, is used for each atural object element on the revised initialization map and each earth's surface element in data
Distribution situation in level is adjusted, to obtain the electronic map.
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