CN107358640A - A kind of landform of hill shading target area and the method and device of atural object - Google Patents
A kind of landform of hill shading target area and the method and device of atural object Download PDFInfo
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- CN107358640A CN107358640A CN201710544119.9A CN201710544119A CN107358640A CN 107358640 A CN107358640 A CN 107358640A CN 201710544119 A CN201710544119 A CN 201710544119A CN 107358640 A CN107358640 A CN 107358640A
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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Abstract
The embodiments of the invention provide a kind of landform of hill shading target area and the method for atural object, including：According to the cloud data of the target area collected, the landform and atural object in target area are identified, and atural object is classified；The coordinate of culture point cloud is obtained, and establishes and maps between the coordinate of the atural object on the digital surface model generated by coordinate and with the cloud data of collection；According to the classification information of atural object and mapping, hill shading is carried out with the different color models that sets to the landform on digital surface model and atural object.After the application identifies the atural object in digital surface model, hill shading is carried out to digital surface model mesorelief and atural object with the different color schemes that sets, while characters of ground object is highlighted, also maintains expression of the digital surface model shading map to features of terrain.
Description
Technical field
The present embodiments relate to technical field of image processing, more particularly to a kind of landform and atural object of hill shading target area
Method and device.
Background technology
With developing rapidly for Spatial Information Technology, three-dimension tidal current engineering continuously emerges, and three dimensional representation has become
The important expression way of spatial information, D Urban model are also applied to the data processing and management in city more and more widely
In, the various fields such as infrastructure management, the development decision-making in city of city threedimensional model true to nature in city show huge
Application potential.D Urban model true to nature is made, turns into more and more urgent to express the three-dimensional sight in city well
Demand.
Digital surface model (DSM, Digital Surface Model) is body surface form with the collection of numeral expression
Close, topography and geomorphology can be expressed, express the three-dimensional sight in city well, and current prior art can obtain topography and geomorphology
Corresponding coordinate, for example technology is just using airborne laser radar LIDAR (Light Laser Detection and Ranging)
The three-dimensional coordinate of Ground Point can be obtained, LIDAR carries out LDMS, global positioning system, inertial navigation system
Effective integration, the three-dimensional coordinate of Ground Point, therefore, airborne laser thunder are directly obtained by the observation such as position, distance, angle data
Body surface form can be quickly expressed in digital form up to technology, obtain digital surface model DSM.With digital surface mould
Type DSM is more and more extensive in the application of every profession and trade, and its visualization requirement is also more and more urgent.Shading map is by setting the height of light source
Angle and azimuth are spent, a regional landform can be shown in a manner of meeting human vision, reflects the change of terrain, has
Good third dimension, it is to realize one of visual means of digital surface model DSM.
Prior art is the elevation change for topography and geomorphology mostly, carries out layer colours to topography and geomorphology or gradual change is set
Color, it is stronger to obtain third dimension, and well-bedded hill shading product.But for digital surface model DSM, not only
The stereoscopic features of topography and geomorphology are expressed, also to express the spatial distribution characteristic and elevation variation characteristic of atural object.However, the ground of earth's surface
Thing is typically close apart from topographical surface, and the relative altitude of atural object and topographical surface may well below the fluctuations of landform,
If according in prior art, the elevation change according only to topography and geomorphology carries out hill shading to topography and geomorphology, then is likely to not embody
The characters of ground object of earth's surface.
The content of the invention
In view of this, one of technical problem that the embodiment of the present invention solves is the provision of a kind of hill shading target area
The method of landform and atural object, when carrying out hill shading to digital surface model corresponding to target area, in digital surface model
Atural object uses the color model that sets different from landform to carry out hill shading, is realizing that digital surface model realizes stereoeffect by hill shading
On the basis of, both cause digital surface model to highlight the characters of ground object of target area, and also maintain the expression to features of terrain.
The embodiments of the invention provide a kind of landform of hill shading target area and the method for atural object, including：According to collecting
Target area cloud data, identify the landform and atural object in the target area, and the atural object is classified；Obtain
The coordinate of culture point cloud is taken, and by the coordinate with using the atural object on the digital surface model that the cloud data of collection generates
Mapping is established between coordinate；According to the classification information of the atural object and the mapping, to the landform on the digital surface model
With atural object hill shading is carried out with the different color models that sets.
Alternatively, according to the classification information of the atural object and the mapping, to the landform on the digital surface model and
Atural object is set before color model carries out hill shading with different, further comprising the steps of：According to pixel in the digital surface model
Quantity, concordance list is established, and set the initial index value of each pixel；
According to the classification to atural object, the contour line of single atural object in every kind of atural object classification is extracted；By the single atural object
Profile line projection is to the digital surface model, to determine position of the single atural object on the digital surface model；Root
According to the generic of the single atural object, it is first corresponding to present position on the digital surface model to change the single atural object
Beginning index value.
Alternatively, the step of generating digital surface model with cloud data includes：According to the target area collected
Cloud data, with interpolation algorithm, by the grid data of the cloud data create-rule gathered, form digital surface model
Regular grid.
Alternatively, according to the generic of the single atural object, the single atural object is changed in the digital surface model
Initial index value comprises the following steps corresponding to upper present position：The single atural object is calculated to project to the digital surface model
Line number and row number in the drop shadow spread of regular grid；Obtain the digital table determined jointly by the line number and the row number
The relevant position of surface model；According to the generic of the single atural object, the corresponding of atural object on the digital surface model is changed
The initial index value of position.
Alternatively, to the landform of the target area set color process as：According to the point cloud number of the target area collected
According to obtaining the minimum value and maximum of the elevation of the landform of the target area；Swooned according to corresponding to the default minimum value
Hill shading color corresponding to wash with watercolours color the and default maximum, by the way of layer colours, determine that height value is in institute
State the hill shading color of the landform between minimum value and the maximum.
Alternatively, to the atural object of the target area set color process as：Extract real-time and the digital surface model pair
The hill shading color of landform residing for atural object described in the digital elevation model (DEM, Digital Elevation Model) answered；Root
According to the hill shading color of the maximum height of default every kind of atural object classification, and the residing ground of atural object described in the digital elevation model
The hill shading color of shape, interpolation go out hill shading color corresponding to the actual height value of single atural object.
Alternatively, change single atural object initial index corresponding to present position on the digital surface model
Value specifically includes following steps：According to default atural object classification and the mapping table of index value, change the single atural object and exist
Initial index value corresponding to present position on the digital surface model.
Alternatively, single atural object initial index value corresponding to present position on the digital surface model is changed
Step is：According to default atural object classification and the mapping table of index value, by the single atural object in the digital surface mould
The initial index value of all pixels is changed in the mapping table in present position in type, classification described in the single atural object
Corresponding index value.
Alternatively, it is described with interpolation algorithm by the grid data of the cloud data create-rule gathered, the number of formation
In the regular grid of word surface model, the number of pixels in each regular grid unit is 1.
The embodiment of the present invention additionally provides a kind of landform of hill shading target area and the device of atural object, and described device includes：
Terrain classification module, for according to the cloud data of target area collected, identify landform in the target area and
Atural object, and the atural object is classified；Module is established in mapping, for obtaining the coordinate of culture point cloud, and by the coordinate with
Mapping is established between the coordinate of the atural object on digital surface model generated with the cloud data of collection；Hill shading module, is used for
According to the classification information of the atural object and the mapping, color is set with different to the landform on the digital surface model and atural object
Model carries out hill shading.
From above technical scheme, a kind of landform of hill shading target area provided in an embodiment of the present invention and the dress of atural object
Put, by the cloud data of the target area collected, identify the landform and atural object of target area, and atural object has been carried out point
Class, and the actual coordinate of the culture point cloud in target area is sat with the atural object on the digital surface model according to cloud data generation
Mapping relations are established between mark, according to the classification to atural object and the coordinate mapping relations established, on digital surface model
Landform and atural object carry out hill shading with the different color models that sets, with the embodiment of the present application provide hill shading scheme, can not only make
Obtain the stereoscopic features of the hill shading graph expression topography and geomorphology of digital surface model, additionally it is possible to which further the spatial distribution of expression atural object is special
Seek peace elevation variation characteristic, and the natural color transition between landform and atural object, so that digital surface model is dizzy
Wash with watercolours figure is more life-like, and then is preferably more accurately referred to for the offer such as development decision-making, infrastructure management of target area.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in inventive embodiments, for those of ordinary skill in the art, it can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
The signal of the flow of a kind of landform for hill shading target area that Fig. 1 provides for the embodiment of the present application and the method for atural object
Figure；
The structural representation of a kind of landform for hill shading target area that Fig. 2 provides for the embodiment of the present application and the device of atural object
Figure.
Embodiment
Certainly, any technical scheme for implementing the embodiment of the present invention is not necessarily required to all advantages for reaching the above simultaneously.
In order that those skilled in the art more fully understand the technical scheme in the embodiment of the present invention, below in conjunction with the present invention
Accompanying drawing in embodiment, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described reality
It is only part of the embodiment of the embodiment of the present invention to apply example, rather than whole embodiments.Based on the implementation in the embodiment of the present invention
Example, the every other embodiment that those of ordinary skill in the art are obtained, should all belong to the model that the embodiment of the present invention is protected
Enclose.
The specific implementation process of the embodiment of the present invention is further illustrated with reference to the accompanying drawing of the embodiment of the present invention.
As shown in figure 1, the embodiment of the present application provides a kind of landform of hill shading target area and the method for atural object, first should
Method performs step S100, i.e., according to the cloud data of the target area collected, identifies the landform and ground in target area
Thing, and the atural object to identifying is classified.
It should be noted that goal region can be a city or multiple cities or not
Wasteland through exploitation etc., as long as need to establish the region of digital surface model, not to target area in the embodiment of the present application
The specific scope in domain is construed as limiting.
It should also be noted that, in the embodiment of the present application gather target area cloud data method can have it is a variety of,
For example multiple aviations or space flight Image Matching can be used to go out cloud data, airborne laser radar LIDAR can also be used to obtain
To cloud data.
In implementation process, cloud data first can be categorized as ground point and non-ground points, then on this basis, then
According to the point cloud feature of atural object, the cloud data of different atural objects is sorted out, such as, sort out the cloud data of building, forest
Cloud data, dykes and dams cloud data etc..
, it is necessary to which landform and the reflection of the point cloud feature of atural object are arrived into digital surface mould after the cloud data of acquisition landform and atural object
In type, it is therefore desirable to by the actual coordinate value of atural object and the atural object on the digital surface model of the cloud data generation by collection
Coordinate between establish mapping relations, that is, perform step S200：The coordinate of culture point cloud is obtained, and by the coordinate got and fortune
Mapping is established between the coordinate of the atural object on digital surface model generated with the cloud data of collection, then basis passes through step
The mapping relations that S200 is established, the classification information obtained with reference to step S100, execution step S300 hill shading step, i.e., to numeral
Landform and atural object on surface model carry out hill shading with the different color models that sets.
Alternatively, the embodiment of the present application carries out hill shading based on concordance list to the atural object of digital surface model, first according to number
Pixel quantity in word surface model, the concordance list of respective pixel quantity is established, can established and the pixel quantity formed objects
Concordance list, and set the initial size of the index value in concordance list corresponding to each pixel, such as, each index can be set
The initial size of value is 0.Then the contour line of single atural object is extracted, is closed according to the mapping of target area and digital surface model
System, the contour line of single atural object is projected on digital surface model, may thereby determine that out single atural object in digital surface mould
Position in type, finally according to the atural object classification of single atural object, change projected position pair of the single atural object in digital surface model
The initial index value answered.
Alternatively, the embodiment of the present application, can also be to the atural object of each classification before the contour line of single atural object is extracted
Point cloud clustered, by cluster, object point cloud one by one can be partitioned into, for example single solitary building can be partitioned into, it is small
The closely coupled building of piece, the one tree in forest, and closely coupled a piece of bushes etc., the embodiment of the present application institute
The contour line of the single atural object of extraction, can be the contour line of the single culture point cloud after clustering.
Alternatively, the embodiment of the present application can change number according to default atural object classification and the mapping table of index value
Initial index value corresponding to single atural object present position in word surface model.It is as shown in table 1 default atural object classification and index
The mapping table of value：
The mapping table of the atural object classification of table 1 and index value
| Atural object classification | Index value |
| Building | 1 |
| Forest | 2 |
| Dykes and dams | 3 |
When the contour line of single atural object is projected into digital surface model, and determine single atural object on digital surface model
Position after, if the classification of atural object is building, the index value of determined opening position is just changed to 1, if the classification of atural object
It is forest, the index value of determined opening position is just changed to 2, if the classification of atural object is dykes and dams, just by determined opening position
Index value is changed to 3.When carrying out hill shading to the atural object on digital surface model, hill shading can be carried out according to index value, such as, lead to
Search index table is crossed, the index value for learning certain on digital surface model is 2, then according to the depth degree of green to different height
The atural object of degree carries out hill shading.
Alternatively, the embodiment of the present application, with interpolation algorithm, will be adopted according to the cloud data of the target area gathered
The grid data of the cloud data create-rule of collection, so as to form the regular grid of digital surface model.
Here the regular grid of generated digital surface model can be rectangle grid or triangular mesh, this
Application embodiment is not limited the concrete shape of regular grid.
With reference to above-described embodiment, when the contour line of single atural object is projected on digital surface model, just project to
In digital surface model grid, then, in digital surface model grid, will there are the drop shadow spread of the single atural object, root
According to the Grid size of digital surface model, possibly, the border of grid is also combined, it may be determined that grid in drop shadow spread
Line number and row number, so as to determine position of the single atural object on digital surface model jointly by the line number and the row number.By preceding
Understood described in face, a concordance list is established according to pixel quantity in digital surface model, alternatively, in order to farthest subtract
Lack information loss and avoid information redundancy, the number of pixels in regular grid in each grid unit is 1, if each grid unit
For a grid, then can each grid include one and only one pixel, in this case, the projection in the embodiment
Scope identified line number in the grid of digital surface model may have it is multiple, row number may also have it is multiple, it is multiple according to this
Line number and multiple row numbers just can determine that drop shadow spread, can further find out the number of pixels in drop shadow spread, further basis
Table 1 changes index value corresponding to these pixels.
Alternatively, in the embodiment of the present application, to setting in color method for the landform of target area, there is a default step,
The elevation peak of landform presets a hill shading color as in target area, meanwhile, also preset one for the minimum point of elevation
Hill shading color, according to the cloud data of the target area collected, the maximum and minimum value of the elevation of landform can be got, with
And the height value of each point, then each point according to landform in of the height value in the landform of the maximum and the minimum value
With the difference of maximum, and/or the height value of each point and the difference of minimum value in landform, by the way of layer colours, it is determined that
The hill shading color of landform of the height value between minimum value and maximum.For example, default landform altitude peak
Color is grey, and the color of minimum point is red, and the value of the elevation peak of the landform got is 500 meters, the value of minimum point
For 0 meter, 4 layers will be divided between this 0 meter to 500 meters, 0~200 meter is first layer, and 200~300 meters are the second layer, 300~400
Rice is third layer, and 400~500 meters are the 4th layer, and it is yellow to set color corresponding to 200 meters, and color corresponding to 300 meters is green
Color, color corresponding to 400 meters are blueness, then the color that each in first layer is put can be used between red and yellow
Color represent that the second layer can represent that third layer can be between green with the color between yellow and green
A kind of color between blueness represents that the 4th layer can be represented with a kind of color between blueness and grey.When
So, each layer can not also the color according to corresponding to boundary value, can also be using the color different from boundary value come table come hill shading
Show.Each layer of division can also be segmented further on this basis, and the embodiment of the present application is not limited this.
It should be noted that the landform and atural object to target area described in the embodiment of the present application sets color using different
Model carries out hill shading, can be that hill shading color corresponding to default each layer of separation is different using the different color models that set,
Or/and layered scheme is different.
In the embodiment of the present application, when carrying out hill shading to the atural object of target area, it is contemplated that landform sets color scheme and atural object is set
The color of color scheme has differences, to avoid atural object in shading map from the discontinuous situation of color occur with landform transitional region, this
Application embodiment extract real-time treats the color set in color scheme of landform residing for hill shading atural object, and the color got is set with atural object
Color scheme does the linear stretch of color, so can both ensure seamlessly transitting for color, can cause the tone of similar atural object again
It is basically identical.
Hill shading process to atural object is：From the data of digital elevation model corresponding with the digital surface model of target area
In source, extract real-time treats the hill shading color of landform residing for hill shading atural object, then high according to the maximum of default every kind of atural object classification
The hill shading color of degree, and digital elevation model treat the hill shading color of landform residing for hill shading atural object, and interpolation goes out the reality of single atural object
Hill shading color corresponding to the height value of border.
It should be noted that the hill shading color of the maximum height of every kind of atural object classification can be preset as it is identical, can also be pre-
It is set to different, is preferably difference.
Based on identical inventive concept, as shown in Fig. 2 the embodiment of the present application additionally provides a kind of ground of hill shading target area
The device of shape and atural object, including：Terrain classification module, for the cloud data according to the target area collected, identify mesh
The landform and atural object in region are marked, and atural object is classified；Module is established in mapping, for obtaining the coordinate of culture point cloud, and
Establish and map between the coordinate of the atural object on digital surface model generated by coordinate and with the cloud data of collection；Hill shading mould
Block, for the classification information according to atural object and mapping, color model is set with different to the landform on digital surface model and atural object
Carry out hill shading.
It should be noted that the step of cloud data of target area is gathered in terrain classification module can be swashed by airborne
Optical radar LIDAR is realized, can also be set by the way that multiple space flight or space flight Image Matching can be gone out to the matching of cloud data
It is standby to realize.After the cloud data for identifying landform and atural object, the atural object identified can be classified by grader.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be with
Realize by another way.For example, device embodiment described above is only schematical, for example, the division of unit,
Only a kind of division of logic function, can there is an other dividing mode when actually realizing, such as multiple units or component can be with
With reference to or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, it is shown or discussed
Mutual coupling or direct-coupling or communication connection can be by some interfaces, the INDIRECT COUPLING of device or unit or
Communication connection, can be electrical, mechanical or other forms.
The unit illustrated as separating component can be or may not be physically separate, be shown as unit
Part can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple networks
On unit.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That unit is individually handled, can also two or more units it is integrated in a unit.Above-mentioned integrated unit was both
It can be realized, can also be realized in the form of hardware adds SFU software functional unit in the form of hardware.
The above-mentioned integrated unit realized in the form of SFU software functional unit, can be stored in one and computer-readable deposit
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are causing a computer
Equipment (can be personal computer, server, or network equipment etc.) performs the part step of each embodiment method of the present invention
Suddenly.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (Read-Only Memory, abbreviation ROM), with
Machine access memory (Random Access Memory, abbreviation RAM), magnetic disc or CD etc. are various can be with store program codes
Medium.
Finally it should be noted that：Above example is only to illustrate the technical scheme of the embodiment of the present application, rather than it is limited
System；Although the application is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：Its
Technical scheme described in foregoing embodiments can still be modified, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, do not make the technology in essence disengaging each embodiment of the application of appropriate technical solution
The spirit and scope of scheme.
Claims (10)
1. a kind of landform of hill shading target area and the method for atural object, it is characterised in that comprise the following steps：According to what is collected
The cloud data of target area, landform and atural object in the target area are identified, and the atural object is classified；
The coordinate of culture point cloud is obtained, and by the coordinate with using on the digital surface model that the cloud data of collection generates
Mapping is established between the coordinate of atural object；
According to the classification information of the atural object and the mapping, to the landform on the digital surface model and atural object with different
If color model carries out hill shading.
2. the landform of hill shading target area according to claim 1 and the method for atural object, it is characterised in that described according to institute
The classification information of atural object and the mapping are stated, the landform on the digital surface model and atural object are entered with the different color models that sets
It is further comprising the steps of before row hill shading：
According to the quantity of pixel in the digital surface model, concordance list is established, and sets the initial index value of each pixel；
According to the classification to atural object, the contour line of single atural object in every kind of atural object classification is extracted；
By the profile line projection of the single atural object to the digital surface model, to determine the single atural object in the numeral
Position on surface model；
According to the generic of the single atural object, single atural object present position pair on the digital surface model is changed
The initial index value answered.
3. the landform of hill shading target area according to claim 1 or 2 and the method for atural object, it is characterised in that with point
The step of cloud data generation digital surface model, includes：
According to the cloud data of the target area collected, with interpolation algorithm, by the cloud data create-rule gathered
Grid data, form the regular grid of digital surface model.
4. the landform of hill shading target area according to claim 3 and the method for atural object, it is characterised in that according to the list
The generic of individual atural object, change single atural object initial index value corresponding to present position on the digital surface model
Comprise the following steps：
The single atural object is calculated to project to the line number and row number in the drop shadow spread of the digital surface model regular grid；
Obtain the relevant position of the digital surface model determined jointly by the line number and the row number；
According to the generic of the single atural object, the initial index of the relevant position of atural object on the digital surface model is changed
Value.
5. the landform of hill shading target area according to claim 1 and the method for atural object, it is characterised in that to the target
The landform in region set color process as：
According to the cloud data of the target area collected, the minimum value and maximum of the elevation of the landform of the target area are obtained
Value；
According to hill shading color corresponding to hill shading color corresponding to the default minimum value the and default maximum, use
The mode of layer colours, determine the hill shading color of landform of the height value between the minimum value and the maximum.
6. the landform of hill shading target area according to claim 1 and the method for atural object, it is characterised in that to the target
The atural object in region set color process as：
The hill shading color of landform residing for atural object described in extract real-time digital elevation model corresponding with the digital surface model；
According to the hill shading color of the maximum height of default every kind of atural object classification, and atural object described in the digital elevation model
The hill shading color of residing landform, interpolation go out hill shading color corresponding to the actual height value of single atural object.
7. the method for the landform and atural object of the hill shading target area according to the claim of claim 2 or 4, its feature exist
In, the change single atural object initial index value corresponding to present position on the digital surface model specifically include with
Lower step：
According to default atural object classification and the mapping table of index value, the single atural object is changed in the digital surface model
Initial index value corresponding to upper present position.
8. the landform of hill shading target area according to claim 7 and the method for atural object, it is characterised in that change the list
Individual atural object is in the step of initial index value corresponding to present position on the digital surface model：According to default atural object classification
With the mapping table of index value, by the single atural object on the digital surface model in present position all pixels just
Beginning index value is changed in the mapping table, index value corresponding to classification described in the single atural object.
9. the landform of hill shading target area according to claim 3 and the method for atural object, it is characterised in that described with slotting
Value-based algorithm is by the grid data of the cloud data create-rule gathered, in the regular grid of the digital surface model of formation, often
Number of pixels in individual regular grid unit is 1.
10. a kind of landform of hill shading target area and the device of atural object, it is characterised in that described device includes：
Terrain classification module, for the cloud data according to the target area collected, identify the ground in the target area
Shape and atural object, and the atural object is classified；
Module is established in mapping, for obtaining the coordinate of culture point cloud, and by the coordinate with being generated with the cloud data of collection
Digital surface model on atural object coordinate between establish mapping；
Hill shading module, for the classification information according to the atural object and the mapping, to the landform on the digital surface model
With atural object hill shading is carried out with the different color models that sets.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109559378A (en) * | 2018-11-21 | 2019-04-02 | 北京像素软件科技股份有限公司 | Mesh generation method and device |
| CN110097030A (en) * | 2019-05-14 | 2019-08-06 | 武汉高德红外股份有限公司 | It is a kind of based on infrared and visible images protrusion identification methods and system |
| CN110135453A (en) * | 2019-03-29 | 2019-08-16 | 初速度（苏州）科技有限公司 | A kind of laser point cloud data mask method and device |
| CN112287859A (en) * | 2020-11-03 | 2021-01-29 | 北京京东乾石科技有限公司 | Object recognition method, device and system, computer readable storage medium |
| CN113344956A (en) * | 2021-06-21 | 2021-09-03 | 深圳市武测空间信息有限公司 | Ground feature contour extraction and classification method based on unmanned aerial vehicle aerial photography three-dimensional modeling |
-
2017
- 2017-07-05 CN CN201710544119.9A patent/CN107358640A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109559378A (en) * | 2018-11-21 | 2019-04-02 | 北京像素软件科技股份有限公司 | Mesh generation method and device |
| CN110135453A (en) * | 2019-03-29 | 2019-08-16 | 初速度（苏州）科技有限公司 | A kind of laser point cloud data mask method and device |
| CN110097030A (en) * | 2019-05-14 | 2019-08-06 | 武汉高德红外股份有限公司 | It is a kind of based on infrared and visible images protrusion identification methods and system |
| CN112287859A (en) * | 2020-11-03 | 2021-01-29 | 北京京东乾石科技有限公司 | Object recognition method, device and system, computer readable storage medium |
| CN113344956A (en) * | 2021-06-21 | 2021-09-03 | 深圳市武测空间信息有限公司 | Ground feature contour extraction and classification method based on unmanned aerial vehicle aerial photography three-dimensional modeling |
| CN113344956B (en) * | 2021-06-21 | 2022-02-01 | 深圳市武测空间信息有限公司 | Ground feature contour extraction and classification method based on unmanned aerial vehicle aerial photography three-dimensional modeling |
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