CN103177650A - Simple digital map manufacturing method based on aerial photo - Google Patents

Simple digital map manufacturing method based on aerial photo Download PDF

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Publication number
CN103177650A
CN103177650A CN2013101266506A CN201310126650A CN103177650A CN 103177650 A CN103177650 A CN 103177650A CN 2013101266506 A CN2013101266506 A CN 2013101266506A CN 201310126650 A CN201310126650 A CN 201310126650A CN 103177650 A CN103177650 A CN 103177650A
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latitude
longitude
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axle
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CN103177650B (en
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周从华
邢支虎
刘志锋
朱小龙
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ZHENJIANG FENGHUA INFORMATION TECHNOLOGY Co Ltd
Jiangsu University
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ZHENJIANG FENGHUA INFORMATION TECHNOLOGY Co Ltd
Jiangsu University
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Abstract

The invention discloses a simple digital map manufacturing method based on an aerial photo. The manufacturing method comprises the following steps of: building a coordinate system for the aerial photo of a local area; identifying the coordinate of each building in the photo; building a conversion method with actual longitude and latitude; building the relation between longitude and latitude of two points with a unit distance from each other; building a constraint condition between two points which are not more than one meter from each other by using such relation, wherein all points which enable the condition to be true are not more than one meter from a central point. The method is suitable for common users, professional knowledge or professional tools are not required, and the requirement on professional is low; the manufacturing process can be realized by a computer completely, and thus the manual work load is low and the manufacturing cost is low; and all objects but not only symbolic objects such as rivers and bridges in the actual scene can be displayed in detail. The method can be widely used in service systems based on position, and also can be combined with e-government affairs, to directly serve government management and decision analysis through identifying detailed information of objects.

Description

A kind of simple and easy numerical map method for making based on the figure that takes photo by plane
Technical field
The invention belongs to the geographic information system technology field, the figure that relates to taking photo by plane is the numerical map method for making of object.
Background technology
Numerical map is by method for digitizing, urban geographic information stored with the discernible form of computing machine, and can present with the form of continuous map, and be a urban geography database in essence.
Numerical map can provide abundant location-based service, as search various positions for people's life brings great convenience, and traffic path is searched in various places.Numerical map combines with e-commerce system, and capable of dynamic shows chain store position, dispensing destination distribution, calculates shortest path, optimizes distribution project, realizes optimum management etc.Combine with GPS, but Real Time Monitoring mobile object and Vehicular behavior are realized telemanagement.Combine with E-Government, can be widely used in the energy, traffic, agricultural, soil, urban construction, tourism and the every field such as military, directly serve governability and decision analysis, for state's economic construction and social development provide support.
yet the making of numerical map is very difficult, need to be grasped the spatial alternation type on knowledge, the geometric transformation algorithm, vector and raster data model feature, the knowledge such as digital map data structure, need through eight steps on the making flow process: image geometry is corrected, digital map, the map datum topology is processed, data-switching, the map color matching is processed, add map label, use GPS dominating pair of vertices map to verify, map is corrected again, need to relate to AutoCAD on software application, MapInfo, ArcInfo, PhotoShop, ErDas Imagine etc.So the use of many knowledge points, making flow process and software makes the making of map not only professional very high, and cost is also very high.
Except professional and cost of manufacture are had very high requirement, a lot of needs of work that numerical map is made are manual to be completed, therefore workload is very huge, this numerical map that causes present user's use is except the river, outside the object that bridge etc. must mark, seldom relate to the sign of the atypia buildings such as residential building, thereby make the open ended information of numerical map seldom.The defectives such as it is strongly professional that existing numerical map manufacturing technology exists, and cost of manufacture is high, and the manual work amount is large.
Summary of the invention
The invention provides a kind of simple and easy numerical map method for making based on the figure that takes photo by plane, reaching and easily to realize towards domestic consumer and computing machine, and can show in detail all objects in the middle of outdoor scene, and be not only the river, the purposes such as the significant object such as bridge.
In order to solve above technical matters, the present invention adopts following concrete technical scheme.
Step 1 is for the figure that takes photo by plane in some areas sets up coordinate-system.
The figure that takes photo by plane all provides with rectangular in form, take the picture upper left corner as initial point, east-westly is
Figure 2013101266506100002DEST_PATH_IMAGE001
Axle, south-north direction is
Figure 664984DEST_PATH_IMAGE002
Axle.If the size of picture is , pixel size is
Figure 260307DEST_PATH_IMAGE004
, in picture, the lateral coordinates of each point is set to this point and exists
Figure 57362DEST_PATH_IMAGE001
On axle apart from the distance of initial point divided by
Figure 2013101266506100002DEST_PATH_IMAGE005
, then multiply by
Figure 603881DEST_PATH_IMAGE006
, in picture, the along slope coordinate of each point is set to this point and exists On axle apart from the distance of initial point divided by
Figure 2013101266506100002DEST_PATH_IMAGE007
, then multiply by
Figure 725738DEST_PATH_IMAGE008
Suppose that this point exists Distance apart from initial point on axle is
Figure 2013101266506100002DEST_PATH_IMAGE009
, the lateral coordinates of this point is
Figure 727509DEST_PATH_IMAGE010
, this point
Figure 173534DEST_PATH_IMAGE002
Distance apart from initial point on axle is , the lateral coordinates of this point is
Figure 740519DEST_PATH_IMAGE012
Step 2, the coordinate of each solitary building during sign is published picture.
Select a point at random on buildings, with the coordinate of this some coordinate as this buildings.
Step 3 is set up conversion method with the longitude and latitude of reality.
Choose at random two buildingss, be designated as A and B.Obtain A in the coordinate-system of setting up for the figure that takes photo by plane, the coordinate of B, respectively
Be designated as ,
Figure 817059DEST_PATH_IMAGE014
Utilize the GPS positioning function of mobile device to obtain respectively A, the longitude and latitude of B is designated as ,
Only there are zooming and panning, order in two cover coordinate-systems
Figure 2013101266506100002DEST_PATH_IMAGE017
Expression
Figure 587886DEST_PATH_IMAGE001
The scaling of axle,
Figure 573160DEST_PATH_IMAGE018
The translation of expression horizontal ordinate arranges system of equations
Figure 2013101266506100002DEST_PATH_IMAGE019
And solve
Figure 820602DEST_PATH_IMAGE020
,
Figure 2013101266506100002DEST_PATH_IMAGE021
As conversion parameter.Order
Figure 324614DEST_PATH_IMAGE022
Expression
Figure 378021DEST_PATH_IMAGE002
The scaling of axle, The translation of expression horizontal ordinate arranges system of equations
Figure 155484DEST_PATH_IMAGE024
And solve
Figure 2013101266506100002DEST_PATH_IMAGE025
,
Figure 636144DEST_PATH_IMAGE026
As conversion parameter.
Step 4 is set up the relation between the longitude and latitude of 2 of the unit distance of being separated by.
Random chosen distance is no more than three points of 1000 meters in outdoor scene, is designated as C, D, E, utilizes GPS positioning function that mobile device carries to obtain respectively the longitude and latitude of these points, is designated as
Figure 2013101266506100002DEST_PATH_IMAGE027
, ,
Figure 2013101266506100002DEST_PATH_IMAGE029
Calculate the difference of longitude and latitude between C and D and the ratio between distance:
Figure 661049DEST_PATH_IMAGE030
, here
Figure 2013101266506100002DEST_PATH_IMAGE031
Distance between expression C and D, unit is rice.
Calculate the difference of longitude and latitude between C and E and the ratio between distance:
Figure 355335DEST_PATH_IMAGE032
, here
Figure 2013101266506100002DEST_PATH_IMAGE033
Distance between expression C and E, unit is rice.
Calculate the difference of longitude and latitude between D and E and the ratio between distance:
Figure 443115DEST_PATH_IMAGE034
, here Distance between expression D and E, unit is rice.
Pass between the longitude and latitude of 2 of the unit distance of being separated by is:
Figure 426114DEST_PATH_IMAGE036
Step 5, the location is around searching out All buildings in the rice scope
Being located at current location utilizes the longitude and latitude that GPS positioning function that mobile device carries obtains to be
Figure 759007DEST_PATH_IMAGE038
, in the coordinate-system that figure builds in order to take photo by plane, for the coordinate of buildings arbitrarily
Figure 2013101266506100002DEST_PATH_IMAGE039
If,
Figure 307800DEST_PATH_IMAGE040
, identify this buildings not enough apart from current location
Figure 333525DEST_PATH_IMAGE037
Rice.
Beneficial effect: 1) numerical map manufacturing technology of the present invention towards domestic consumer, need not to grasp professional knowledge and specific purpose tool, and is very low to professional requirement; 2) manufacturing process computer realization fully, the manual work amount is low, and cost of manufacture is low; 3) can show in detail all objects that outdoor scene is central, and be not only the river, the significant object such as bridge.
Embodiment
Below in conjunction with embodiment, technical scheme of the present invention is described in further details.
Have the figure that takes photo by plane in the end of the year 2011 of Yangzhong City, Jiangsu Province now.
1) set up coordinate-system for the figure that takes photo by plane of Yangzhong City.
Take the figure upper left corner of taking photo by plane in the end of the year 2011 of Yangzhong City, Jiangsu Province as initial point, east-westly be
Figure 600558DEST_PATH_IMAGE001
Axle, south-north direction is
Figure 533879DEST_PATH_IMAGE002
Axle.The size of picture
Figure 2013101266506100002DEST_PATH_IMAGE041
, in picture, the lateral coordinates of each point is set to this point and exists
Figure 641905DEST_PATH_IMAGE001
On axle apart from the distance of initial point divided by 4741500 centimetres (whole Yangzhong City take photo by plane figure width), then multiply by 11259, in picture, the along slope coordinate of each point is set to this point and exists
Figure 900849DEST_PATH_IMAGE002
On axle apart from the distance of initial point divided by 6088400 centimetres, i.e. whole Yangzhong City length of figure of taking photo by plane, then multiply by 14534.
2) coordinate of each solitary building during sign is published picture.
The figure that takes photo by plane of existing Yangzhong City three thatch street building communities, mark two solitary building A and B in the figure that takes photo by plane of Yangzhong City's three thatch street building communities, its coordinate is respectively (5012.50 ,-4084.25), (5006.50 ,-4117.75).
3) set up conversion method with actual longitude and latitude.
Building A and B for mark in the figure that takes photo by plane of Yangzhong City's three thatch street building communities utilize the GPS positioning function that mobile device carries to obtain respectively A, the longitude and latitude of B, respectively (119.81486798,32.23674003), (119.81470613,32.23598230).
Set up system of equations
Figure 327282DEST_PATH_IMAGE042
, solve
Figure 329873DEST_PATH_IMAGE001
The scaling of axle
Figure 2013101266506100002DEST_PATH_IMAGE043
, the horizontal ordinate translation parameters
Figure 790941DEST_PATH_IMAGE044
Set up system of equations
Figure 2013101266506100002DEST_PATH_IMAGE045
, solve
Figure 955206DEST_PATH_IMAGE002
The scaling of axle
Figure 134515DEST_PATH_IMAGE046
, the ordinate translation parameters
Figure 2013101266506100002DEST_PATH_IMAGE047
Step 4 is set up the relation between the longitude and latitude of 2 of the unit distance of being separated by.
Three points of random selection in outdoor scene, be designated as C, D, E, utilize GPS positioning function that mobile device carries to obtain respectively the longitude and latitude of these points, respectively (119.84486513,32.21314854), (119.85382112,32.21473186), (119.85463039,32.20812715).
Calculate the difference of longitude and latitude between C and D and the ratio between distance:
Calculate the difference of longitude and latitude between C and E and the ratio between distance:
Figure 2013101266506100002DEST_PATH_IMAGE049
Calculate the difference of longitude and latitude between D and E and the ratio between distance:
Figure 427011DEST_PATH_IMAGE050
Pass between the longitude and latitude of 2 of the unit distance of being separated by is:
Figure 2013101266506100002DEST_PATH_IMAGE051
Step 5, the location is around searching out
Figure 965439DEST_PATH_IMAGE037
All buildings in the rice scope
Be located at the longitude and latitude that current location utilizes the GPS positioning function of mobile phone to obtain
Figure 428782DEST_PATH_IMAGE038
, in the coordinate-system that figure builds in order to take photo by plane, for the coordinate of buildings arbitrarily
Figure 773175DEST_PATH_IMAGE039
If, , identify this buildings not enough apart from current location
Figure 714904DEST_PATH_IMAGE037
Rice.

Claims (4)

1. simple and easy numerical map method for making based on the figure that takes photo by plane is characterized in that comprising the following steps:
Step 1 is for the figure that takes photo by plane in some areas sets up coordinate-system;
Step 2, the coordinate of each solitary building during sign is published picture;
Step 3 is set up conversion method with the longitude and latitude of reality;
Step 4 is set up the relation between the longitude and latitude of 2 of the unit distance of being separated by;
Step 5, the location is around searching out
Figure 968293DEST_PATH_IMAGE001
All buildings in the rice scope.
2. simple and easy numerical map method for making based on the figure that takes photo by plane as claimed in claim 1 is characterized in that described step 1 further is specially:
Figure 328867DEST_PATH_IMAGE002
Take the figure upper left corner of taking photo by plane as initial point, east-westly be
Figure 715986DEST_PATH_IMAGE003
Axle, south-north direction is
Figure 23471DEST_PATH_IMAGE004
Axle;
If the size of picture is
Figure 711121DEST_PATH_IMAGE006
, pixel size is
Figure 257640DEST_PATH_IMAGE007
, in picture, the lateral coordinates of each point is set to this point and exists
Figure 368815DEST_PATH_IMAGE003
On axle apart from the distance of initial point divided by
Figure 379497DEST_PATH_IMAGE008
, then multiply by
Figure 347453DEST_PATH_IMAGE009
, in picture, the along slope coordinate of each point is set to this point and exists
Figure 876873DEST_PATH_IMAGE004
On axle apart from the distance of initial point divided by
Figure 588477DEST_PATH_IMAGE010
, then multiply by
Figure 453665DEST_PATH_IMAGE011
Suppose that this point exists
Figure 592523DEST_PATH_IMAGE003
Distance apart from initial point on axle is
Figure 113634DEST_PATH_IMAGE012
, the lateral coordinates of this point is
Figure 363349DEST_PATH_IMAGE013
, this point
Figure 348623DEST_PATH_IMAGE004
Distance apart from initial point on axle is , the lateral coordinates of this point is
Figure 666789DEST_PATH_IMAGE015
3. simple and easy numerical map method for making based on the figure that takes photo by plane as described in claim 1 is characterized in that described step 3 further is specially:
Figure 720196DEST_PATH_IMAGE002
Choose at random two buildingss, be designated as A and B;
Obtain A in the coordinate-system of setting up for the figure that takes photo by plane, the coordinate of B, minute
Be not designated as
Figure 497659DEST_PATH_IMAGE016
,
Figure 978319DEST_PATH_IMAGE017
Utilize the GPS positioning function that mobile device carries to obtain respectively A, the longitude and latitude of B is designated as
Figure 270760DEST_PATH_IMAGE018
,
Figure 564075DEST_PATH_IMAGE019
Figure 258362DEST_PATH_IMAGE005
Order
Figure 909923DEST_PATH_IMAGE020
Expression
Figure 892923DEST_PATH_IMAGE003
The scaling of axle,
Figure 288132DEST_PATH_IMAGE021
The translation of expression horizontal ordinate arranges system of equations
Figure 836925DEST_PATH_IMAGE022
And solve ,
Figure 129683DEST_PATH_IMAGE024
As conversion parameter;
Figure 328583DEST_PATH_IMAGE025
Order
Figure 731883DEST_PATH_IMAGE026
Expression
Figure 928509DEST_PATH_IMAGE004
The scaling of axle, The translation of expression horizontal ordinate arranges system of equations
Figure 419850DEST_PATH_IMAGE028
And solve
Figure 382383DEST_PATH_IMAGE029
,
Figure 812228DEST_PATH_IMAGE030
As conversion parameter.
4. simple and easy numerical map method for making based on the figure that takes photo by plane as claimed in claim 1 is characterized in that described step 4 further is specially:
Figure 788274DEST_PATH_IMAGE002
Select three points at random in outdoor scene, be designated as respectively C, D, E, utilize GPS positioning function that mobile device carries to obtain respectively the longitude and latitude of described point, be designated as respectively
Figure 266660DEST_PATH_IMAGE031
,
Figure 910131DEST_PATH_IMAGE032
,
Figure 245297DEST_PATH_IMAGE033
;
2. calculate the difference of longitude and latitude between C and D and the ratio between distance:
Figure 911902DEST_PATH_IMAGE034
, described
Figure 990716DEST_PATH_IMAGE035
Distance between expression C and D, unit is rice;
3. calculate the difference of longitude and latitude between C and E and the ratio between distance:
Figure 488694DEST_PATH_IMAGE036
, described
Figure 994761DEST_PATH_IMAGE037
Distance between expression C and E, unit is rice;
4. calculate the difference of longitude and latitude between D and E and the ratio between distance: , described
Figure 31168DEST_PATH_IMAGE039
Distance between expression D and E, unit is rice;
Pass between the longitude and latitude of 2 of the unit distance of 5. being separated by is:
Figure 383651DEST_PATH_IMAGE040
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CN104182512A (en) * 2014-08-20 2014-12-03 中国电建集团成都勘测设计研究院有限公司 Transformation and verification methods of GPS (global positioning system) coordinates and local coordinates
CN106294329A (en) * 2015-05-08 2017-01-04 北京智谷睿拓技术服务有限公司 Information processing method and equipment
CN107169132A (en) * 2017-06-09 2017-09-15 中国神华能源股份有限公司 Draw method, storage device, storage medium and the device of mining map

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JP2001344328A (en) * 2000-05-31 2001-12-14 Misawa Homes Co Ltd Device for management of information on real estate property, management system of information on the property, method for management of information on the property and storage medium
CN1375987A (en) * 2002-02-20 2002-10-23 阮伟 Digital image correcting method
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