CN107743201A - A kind of quick pattern splicing method of power line gallery digital cameras in general use and device - Google Patents
A kind of quick pattern splicing method of power line gallery digital cameras in general use and device Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/142—Edging; Contouring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/265—Mixing
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Abstract
A kind of quick pattern splicing method of power line gallery digital cameras in general use provided by the invention, including：The original optical image of digital cameras in general use is obtained, generates image list, carries out sparse matching generation characteristic point information；Full-automatic aerial triangulation algorithm is carried out according to image list and characteristic point information, exports encrypted result；Digital elevation model in photographing region is generated according to encrypted result；Traditionally geometric correction mode carries out orthography correction piecewise to digital elevation model, calculating initially inlays line and realizes inlaying for overall image figure, generates and is just penetrating by full-automatic sky three, DEM and inlays the technical problem for solving the consumption-orientation sensor orthography picture mosaic that conventional art is difficult on processing unmanned plane.The present invention also provides a kind of quick puzzle device of power line gallery digital cameras in general use.
Description
Technical field
The present invention relates to the digital cameras in general use technical field of image processing of power line gallery, more particularly to a kind of electric power
The quick pattern splicing method of line gallery digital cameras in general use and device.
Background technology
Compared with satellite remote sensing and aviation have man-machine remote sensing, UAV Maneuver is strong, landing mode is flexible, equipment, maintenance
And operating cost is relatively low, and because its flying height is low so very high-resolution aerial images can be obtained.It is man-machine relative to having
Aeroplane photography, unmanned aerial vehicle remote sensing can be carried out below clouds, influenceed by weather condition it is relatively low, in the quick emergent of natural calamity
Very big effect can be played in response.Scalability camera, existing more real case are carried on unmanned plane, but carries consumption
Level camera is very rare.
In photogrammetric feel and remote sensing fields, possesses function from existing business data processing system to discuss, such as Germany
Inpho, French PixelFactory, and the application system such as domestic JX4/5, VirtuoZo/DPGrid, PixelGrid,
It is the poster processing soft researched and developed for airborne/spaceborne visible image data, suffers from long period research and development course with enriching
Industry application background, can at least solve landform basic surveying and mapping product digital surface model, digital elevation model, digital orthogonal projection
The made with high precision problem of picture.But for handling the consumption-orientation sensor orthography picture mosaic problem on unmanned plane, really still
It is extremely difficult.
Prior art and have ignored consumption-orientation mainly for the data processing of UAV flight's scalability special digital camera
The treatment technology of data of digital camera, so as to leverage the popularization degree of this technology.
The content of the invention
For disadvantages mentioned above, the embodiments of the invention provide a kind of quick picture mosaic side of power line gallery digital cameras in general use
Method and device, its important step include altogether：Full-automatic sky three, DEM generations and just penetrating such as inlays at 3 aspects, for solving tradition
Technology is difficult to the technical problem for handling the consumption-orientation sensor orthography picture mosaic on unmanned plane.
A kind of quick pattern splicing method of power line gallery digital cameras in general use provided by the invention, including：
S1：The original optical image of digital cameras in general use is obtained, generates image list, carries out sparse matching generation feature
Point information；
S2：Full-automatic aerial triangulation algorithm is carried out according to image list and characteristic point information, exports encrypted result；
S3：Digital elevation model in photographing region is generated according to encrypted result；
S4：Traditionally geometric correction mode carries out orthography correction piecewise to digital elevation model, calculates initial edge
Rule simultaneously realizes inlaying for overall image figure.
Preferably, the step S2 is specifically included：
A1：Filtering algorithm is performed to image list according to characteristic point information, obtains initial pictures pair；
A2：The lens system error for going out system according to the geometrical-restriction relation automatic Verification of initial pictures pair after screening is joined
Number, generate SYSTEM ERROR MODEL；
A3：According to SYSTEM ERROR MODEL the initial pictures after screening are met execution with the overall region of strict collinearity condition
Net adjusted data resolves；
A4：Whether detection calculation result meets default testing conditions, if so, encrypted result is then exported, if it is not, then searching for
New initial pictures pair simultaneously return and perform step A2.
Preferably, the step S3 is specifically included：
B1：Neighborhood obligatory point cloud elimination of rough difference algorithm is performed to the three-dimensional point cloud coordinate in encrypted result；
B2：Initial seed point is obtained according to the three-dimensional point cloud coordinate after execution neighborhood obligatory point cloud elimination of rough difference algorithm；
B3：The three-dimensional point cloud coordinate after performing neighborhood obligatory point cloud elimination of rough difference algorithm is performed gradually according to initial seed point
Enter formula triangulation network filtering algorithm, obtain exposed ground cloud data；
B4：Digital elevation model interpolation algorithm is performed according to exposed ground cloud data, obtains the numeral in photographing region
Elevation model.
Preferably, the step S4 is specifically included：
C1：Original image to be inlayed in digital elevation model carries out orthography piecewise and corrected, and calculates and obtains just
Beginning inlays line；
C2：Block-by-block image filling is carried out to original image to be inlayed according to initial line of inlaying, generates overall mosaic map mosaic；
C3：Color balance algorithm is performed to overall mosaic map mosaic and initial line of inlaying, obtains and exports overall image figure.
Preferably, the lens system error parameter specifically includes：Focal length parameter, principal point offset parameter, radial distortion ginseng
Number, tangential distortion parameter.
A kind of quick puzzle device of power line gallery digital cameras in general use provided by the invention, including：
Original optical Yunnan snub-nosed monkey module, for obtaining the original optical image of digital cameras in general use, generate image
List, carry out sparse matching generation characteristic point information；
Aerial triangulation module, for carrying out full-automatic aerial triangulation calculation according to image list and characteristic point information
Method, export encrypted result；
DEM generation modules, for generating the digital elevation model in photographing region according to encrypted result；
Entirety inlays module, carries out orthography piecewise to digital elevation model for traditionally geometric correction mode and entangles
Just, calculate and initially inlay line and realize inlaying for overall image figure.
Preferably, the aerial triangulation module specifically includes：
Screening unit, for performing filtering algorithm to image list according to characteristic point information, obtain initial pictures pair；
SYSTEM ERROR MODEL generation unit, for being gone out according to the geometrical-restriction relation automatic Verification of initial pictures pair after screening
The lens system error parameter of system, generate SYSTEM ERROR MODEL；
Overall region net adjusted data solving unit, for according to SYSTEM ERROR MODEL to the initial pictures after screening to performing symbol
The overall region net adjusted data for closing strict collinearity condition resolves；
Output unit is detected, for detecting whether calculation result meets default testing conditions, if so, then output encryption knot
Fruit, if it is not, then searching for new initial pictures pair and returning to execution system error model generation unit.
Preferably, the DEM generation modules specifically include：
Neighborhood obligatory point cloud elimination of rough difference unit, for performing neighborhood obligatory point to the three-dimensional point cloud coordinate in encrypted result
Cloud elimination of rough difference algorithm；
Initial seed point acquiring unit, for being sat according to the three-dimensional point cloud after execution neighborhood obligatory point cloud elimination of rough difference algorithm
Mark obtains initial seed point；
Exposed ground cloud data acquisition module, for according to initial seed point to perform neighborhood obligatory point cloud elimination of rough difference
Three-dimensional point cloud coordinate after algorithm performs gradual triangulation network filtering algorithm, obtains exposed ground cloud data；
Digital elevation model interpolation unit, for performing interlude in digital elevation model according to exposed ground cloud data
Method, obtain the digital elevation model in photographing region.
Preferably, the entirety is inlayed module and specifically included：
Orthography corrects unit piecewise, is carried out piecewise just for the original image to be inlayed in digital elevation model
Image rectification is penetrated, calculates to obtain and initially inlays line；
Block-by-block image fills unit, for carrying out block-by-block image filling to original image to be inlayed according to initial line of inlaying,
Generate overall mosaic map mosaic；
Overall image figure obtains and output unit, for performing color balance calculation to overall mosaic map mosaic and initial line of inlaying
Method, obtain and export overall image figure.
Preferably, the lens system error parameter specifically includes：Focal length parameter, principal point offset parameter, radial distortion ginseng
Number, tangential distortion parameter.
As can be seen from the above technical solutions, the embodiment of the present invention has advantages below：
A kind of quick pattern splicing method of power line gallery digital cameras in general use provided by the invention, including：Obtain consumer level
The original optical image of digital camera, image list is generated, carry out sparse matching generation characteristic point information；According to image list and
Characteristic point information carries out full-automatic aerial triangulation algorithm, exports encrypted result；Generated according to encrypted result in photographing region
Digital elevation model；Traditionally geometric correction mode carries out orthography correction piecewise to digital elevation model, calculates just
Beginning inlays line and realizes inlaying for overall image figure, generates by full-automatic sky three, DEM and is just penetrating to inlay and solves conventional art
It is difficult to the technical problem for handling the consumption-orientation sensor orthography picture mosaic on unmanned plane.The present invention also provides a kind of power line corridor
The quick puzzle device of road digital cameras in general use.
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 of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is one of a kind of quick pattern splicing method of power line gallery digital cameras in general use provided in an embodiment of the present invention
The schematic diagram of embodiment；
Fig. 2 is a kind of the another of quick pattern splicing method of power line gallery digital cameras in general use provided in an embodiment of the present invention
The schematic diagram of individual embodiment.
Embodiment
For disadvantages mentioned above, the embodiments of the invention provide a kind of quick picture mosaic side of power line gallery digital cameras in general use
Method and device, its important step include altogether：Full-automatic sky three, DEM generations and just penetrating such as inlays at 3 aspects, for solving tradition
Technology is difficult to the technical problem for handling the consumption-orientation sensor orthography picture mosaic on unmanned plane.
To enable goal of the invention, feature, the advantage of the present invention more obvious and understandable, 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 disclosed below
Embodiment be only part of the embodiment of the present invention, and not all embodiment.Based on the embodiment in the present invention, this area
All other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to protection of the present invention
Scope.
A kind of referring to Fig. 1, quick pattern splicing method of power line gallery digital cameras in general use provided in an embodiment of the present invention
One embodiment, including：
S1：The original optical image of digital cameras in general use is obtained, generates image list, carries out sparse matching generation feature
Point information；
The original optical image of digital cameras in general use is obtained, generates image list, carries out sparse matching generation characteristic point
Information, wherein sparse matching is a kind of Feature Correspondence Algorithm of normal image, characteristic point information can be obtained.
S2：Full-automatic aerial triangulation algorithm is carried out according to image list and characteristic point information, exports encrypted result；
After obtaining image list and characteristic point information, full-automatic aerial triangle is carried out according to image list and characteristic point information
Measurement Algorithm, encrypted result can be obtained and exported.
S3：Digital elevation model in photographing region is generated according to encrypted result；
According to encrypted result, the digital elevation model in photographing region can be just generated, for example, encryption can be passed through
Digital elevation model in point coordinates generation photographing region.
S4：Traditionally geometric correction mode carries out orthography correction piecewise to digital elevation model, calculates initial edge
Rule simultaneously realizes inlaying for overall image figure；
After generating the digital elevation model in photographing region, traditionally geometric correction mode is carried out to digital elevation model
Orthography is corrected piecewise, and calculating initially inlays line and realizes inlaying for overall image figure.
A kind of quick pattern splicing method of power line gallery digital cameras in general use provided in an embodiment of the present invention, including：Obtain
The original optical image of digital cameras in general use, image list is generated, carry out sparse matching generation characteristic point information；According to image
List and characteristic point information carry out full-automatic aerial triangulation algorithm, export encrypted result；Generated and photographed according to encrypted result
Digital elevation model in region；Traditionally geometric correction mode carries out orthography correction piecewise to digital elevation model,
Calculating initially inlay line and realizes inlaying for overall image figure, is penetrating by full-automatic sky three, DEM generations and just to inlay and solves biography
System technology is difficult to the technical problem for handling the consumption-orientation sensor orthography picture mosaic on unmanned plane.
Above is to a kind of quick pattern splicing method of power line gallery digital cameras in general use provided in an embodiment of the present invention
One embodiment is described in detail, below will be to a kind of power line gallery consumer level number phase provided in an embodiment of the present invention
Another embodiment of the quick pattern splicing method of machine is described in detail.
A kind of referring to Fig. 2, quick pattern splicing method of power line gallery digital cameras in general use provided in an embodiment of the present invention
Another embodiment, including：
201：The original optical image of digital cameras in general use is obtained, generates image list, it is special to carry out sparse matching generation
Sign point information；
Then need to carry out full-automatic aerial triangulation algorithm, output encryption knot according to image list and characteristic point information
Fruit, in traditional photogrammetric drawing assignment flow, general people can carry out accurate laboratory self calibration to digital camera
Processing, to eliminate influence of the lens system error to subsequent measurement to greatest extent.But for vast non-graphics field
Industry user for, consumption-orientation digital camera is carried using the SUAV that becomes increasingly popular and carries out three-dimensional reconstruction or mapping ground
The demand of shape figure is very vigorous.Therefore, carrying out accurate aerial triangulation for picture captured by consumption-orientation digital camera is
Final steps in whole data processing link, mainly include step 202, step 203, step 204, step 205；
202：Filtering algorithm is performed to image list according to characteristic point information, obtains initial pictures pair；
Contain characteristic point in image in image list, wherein certain two image contains public characteristic point, then the two
Possess geometrical-restriction relation between image, initial pictures pair can be formed.Can be designed according to this principle corresponding filtering algorithm according to
Characteristic point information carries out screening to image list and obtains initial pictures pair.
203：The lens system error for going out system according to the geometrical-restriction relation automatic Verification of initial pictures pair after screening is joined
Number, generate SYSTEM ERROR MODEL；
Lens system error parameter specifically includes：Focal length parameter, principal point offset parameter, radial distortion parameter, tangential distortion
Parameter.SYSTEM ERROR MODEL i.e. in algorithm uses 7 parameter models, focal length (f), principal point offset (x0, y0), radial distortion (k1,
K2), tangential distortion (p1, p2).The embodiment of the present invention completes aerial triangulation using complete On-line self-diagnosis calibration method, i.e.,
The geometrical-restriction relation relied between image carrys out the lens system error parameter that automatic Verification goes out system.
204：According to SYSTEM ERROR MODEL the initial pictures after screening are met execution with the overall area of strict collinearity condition
Domain net adjusted data resolves；
SYSTEM ERROR MODEL uses 7 parameter models, contains the inside and outside parameter of camera, according to SYSTEM ERROR MODEL to screening
The overall region net adjusted data that initial pictures afterwards meet execution strict collinearity condition resolves and (carries out adjustment optimization to calculate), obtains
The camera inside and outside parameter and pass point three-dimensional coordinate of all images into image list.It can refer to and put down accordingly in increment type SFM
Poor optimized algorithm.
205：Whether detection calculation result meets default testing conditions, if so, encrypted result is then exported, if it is not, then searching
Suo Xin initial pictures pair simultaneously return to execution step 203；
It is not difficult to find out from step 202 to step 205, above-mentioned designed full-automatic aerial triangulation algorithm, it is only necessary to
Full automatic treatment flow can be completed by inputting random image list and the generated characteristic point information of sparse matching, so as to avoid
Cumbersome air strips arrangement such as is connected at the more poorly efficient stereo reconstruction process with relative orientation, model.Algorithm passes through initial pictures pair
Screening after, enter directly into the overall region net adjusted data flow for meeting strict collinearity condition, its calculating process is simply efficient, non-
Often it is beneficial to computer program code to implement.The reliability of sparse algorithm for reconstructing is also improved simultaneously.
Then according to encrypted result generate photographing region in digital elevation model, mainly include step 206, step 207,
Step 208, step 209.
206：Neighborhood obligatory point cloud elimination of rough difference algorithm is performed to the three-dimensional point cloud coordinate in encrypted result；
Neighborhood obligatory point cloud elimination of rough difference algorithm is performed to the three-dimensional point cloud coordinate in encrypted result, can refer to existing neighbour
Region constraint point cloud elimination of rough difference algorithm is carried out.
207：Initial seed point is obtained according to the three-dimensional point cloud coordinate after execution neighborhood obligatory point cloud elimination of rough difference algorithm；
Obtained automatically according in the three-dimensional point cloud coordinate after execution neighborhood obligatory point cloud elimination of rough difference algorithm for being filtered
The seed point of ripple.
208：The three-dimensional point cloud coordinate after performing neighborhood obligatory point cloud elimination of rough difference algorithm is performed according to initial seed point
Gradual triangulation network filtering algorithm, obtain exposed ground cloud data；
On the premise of elimination of rough difference, according to the initial seed point of automatic screening, according to geometry threshold value bars such as the gradient, distances
Part, the automatic distinguishing of topographic(al) point and non-topographic(al) point is realized, so as to reach filtered classification effect iteration self-adapting.
209：Digital elevation model interpolation algorithm is performed according to exposed ground cloud data, obtains the numeral in photographing region
Elevation model.
Digital elevation model interpolation algorithm can refer to interpolation DEM algorithms.
It should be noted that in step 202 to step 209, aerial triangulation main purpose is to recover camera shooting
During position and posture, and sparse pass point three-dimensional coordinate can be generated, and closed points coordinate can just be generated and is shot
Enter word elevation model data in the domain of shadow zone.In practice process, in order to obtain the digital elevation model of good quality, it is necessary to right
Three-dimensional point cloud carries out rough sort (technical term, also referred to as filtering), obtains exposed ground cloud data, then by exposed ground point data
Interpolation generates DEM,
Then traditionally geometric correction mode carries out orthography correction piecewise to digital elevation model, calculates initial edge
Rule simultaneously realizes inlaying for overall image figure, mainly includes step 210, step 211, step 212.
210：Original image to be inlayed in digital elevation model carries out orthography piecewise and corrected, and calculates and obtains just
Beginning inlays line；
Orthography after monolithic is corrected includes clear and definite geometry polygon scope, how from a series of overlapped more
Side shape concentration every photo of acquisition inlays scope, is the critical process for solving integrally to inlay.It generally there are two class algorithms
The initial generation for inlaying polygon is carried out, and it is widely used by all kinds of commercial systems.First kind method, directly with polygon two-by-two
Ask friendship mode to obtain and inlay boundary line, the following boundary line of initial situation is fairly regular, edge of gradually being refined with the introducing of polygon
Rule border, and finally obtain and inlay line profile；Second class method rule from two-dimentional Delaunay triangulation network and its dual graph this
One theory is set out, and the central point according to each polygon builds Delaunay triangles, and generates the Voronoi diagram of its antithesis,
Polygonal Boundary corresponding to Voronoi diagram is to inlay the profile of polygon.It is noted that above-mentioned two classes algorithm is all very
It is adapted to computer code to realize, and 100,000 grades of orthography can be supported on common computer while networked to inlay.
211：Block-by-block image filling is carried out to original image to be inlayed according to initial line of inlaying, generates overall mosaic map mosaic；
Obtain after initially inlaying line, survey image in area and carry out block-by-block filling according to respective geometric tessellation scope, generation is whole
Body mosaic map mosaic.
212：Color balance algorithm is performed to overall mosaic map mosaic and initial line of inlaying, obtains and exports overall image figure；
That inlays line and mosaic map mosaic is superimposed the border transition pixel value that can easily obtain between image, is adjusted for color balance
It is whole that effective data message is provided, effective color balance algorithm is recycled, reaches overall and effectively inlays effect, final output
Inlay design sketch.
The embodiment of the present invention devises digital cameras in general use image and is just penetrating mosaic map mosaic rapid generation, its important step
Include altogether：Full-automatic sky three, DEM generations and just penetrating such as inlays at 3 aspects, unlike conventional digital photography measuring system：
Fast Mosaic figure generating algorithm avoids the higher dense matching link of time complexity, and uses the higher sky three of reliability dilute
Dredge point cloud and carry out DEM interpolations, automation and the robustness of disposed of in its entirety flow can be lifted to greatest extent.
Below by a kind of quick puzzle device of power line gallery digital cameras in general use provided in an embodiment of the present invention
One embodiment is described in detail.
A kind of one implementation of quick puzzle device of power line gallery digital cameras in general use provided in an embodiment of the present invention
Example, including：
Original optical Yunnan snub-nosed monkey module, for obtaining the original optical image of digital cameras in general use, generate image
List, carry out sparse matching generation characteristic point information；
Aerial triangulation module, for carrying out full-automatic aerial triangulation calculation according to image list and characteristic point information
Method, export encrypted result；
DEM generation modules, for generating the digital elevation model in photographing region according to encrypted result；
Entirety inlays module, carries out orthography piecewise to digital elevation model for traditionally geometric correction mode and entangles
Just, calculate and initially inlay line and realize inlaying for overall image figure.
Further, aerial triangulation module specifically includes：
Screening unit, for performing filtering algorithm to image list according to characteristic point information, obtain initial pictures pair；
SYSTEM ERROR MODEL generation unit, for being gone out according to the geometrical-restriction relation automatic Verification of initial pictures pair after screening
The lens system error parameter of system, generate SYSTEM ERROR MODEL；
Overall region net adjusted data solving unit, for according to SYSTEM ERROR MODEL to the initial pictures after screening to performing symbol
The overall region net adjusted data for closing strict collinearity condition resolves；
Output unit is detected, for detecting whether calculation result meets default testing conditions, if so, then output encryption knot
Fruit, if it is not, then searching for new initial pictures pair and returning to execution system error model generation unit.
Further, DEM generation modules specifically include：
Neighborhood obligatory point cloud elimination of rough difference unit, for performing neighborhood obligatory point to the three-dimensional point cloud coordinate in encrypted result
Cloud elimination of rough difference algorithm；
Initial seed point acquiring unit, for being sat according to the three-dimensional point cloud after execution neighborhood obligatory point cloud elimination of rough difference algorithm
Mark obtains initial seed point；
Exposed ground cloud data acquisition module, for according to initial seed point to perform neighborhood obligatory point cloud elimination of rough difference
Three-dimensional point cloud coordinate after algorithm performs gradual triangulation network filtering algorithm, obtains exposed ground cloud data；
Digital elevation model interpolation unit, for performing interlude in digital elevation model according to exposed ground cloud data
Method, obtain the digital elevation model in photographing region.
Further, module is integrally inlayed to specifically include：
Orthography corrects unit piecewise, is carried out piecewise just for the original image to be inlayed in digital elevation model
Image rectification is penetrated, calculates to obtain and initially inlays line；
Block-by-block image fills unit, for carrying out block-by-block image filling to original image to be inlayed according to initial line of inlaying,
Generate overall mosaic map mosaic；
Overall image figure obtains and output unit, for performing color balance calculation to overall mosaic map mosaic and initial line of inlaying
Method, obtain and export overall image figure.
Further, lens system error parameter specifically includes：Focal length parameter, principal point offset parameter, radial distortion parameter,
Tangential distortion parameter.
Described above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to before
Embodiment is stated the present invention is described in detail, it will be understood by those within the art that：It still can be to preceding
State the technical scheme described in each embodiment to modify, or equivalent substitution is carried out to which part technical characteristic；And these
Modification is replaced, and the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
- A kind of 1. quick pattern splicing method of power line gallery digital cameras in general use, it is characterised in that including：S1：The original optical image of digital cameras in general use is obtained, generates image list, carries out sparse matching generation characteristic point letter Breath；S2：Full-automatic aerial triangulation algorithm is carried out according to image list and characteristic point information, exports encrypted result；S3：Digital elevation model in photographing region is generated according to encrypted result；S4：Traditionally geometric correction mode carries out orthography correction piecewise to digital elevation model, and calculating initially inlays line And realize inlaying for overall image figure.
- A kind of 2. quick pattern splicing method of power line gallery digital cameras in general use according to claim 1, it is characterised in that The step S2 is specifically included：A1：Filtering algorithm is performed to image list according to characteristic point information, obtains initial pictures pair；A2：Go out the lens system error parameter of system according to the geometrical-restriction relation automatic Verification of initial pictures pair after screening, it is raw Into SYSTEM ERROR MODEL；A3：The overall region net that the initial pictures after screening are met execution with strict collinearity condition according to SYSTEM ERROR MODEL is put down Difference resolves；A4：Whether detection calculation result meets default testing conditions, if so, encrypted result is then exported, if it is not, then searching for newly Initial pictures pair simultaneously return to execution step A2.
- A kind of 3. quick pattern splicing method of power line gallery digital cameras in general use according to claim 1, it is characterised in that The step S3 is specifically included：B1：Neighborhood obligatory point cloud elimination of rough difference algorithm is performed to the three-dimensional point cloud coordinate in encrypted result；B2：Initial seed point is obtained according to the three-dimensional point cloud coordinate after execution neighborhood obligatory point cloud elimination of rough difference algorithm；B3：The three-dimensional point cloud coordinate after performing neighborhood obligatory point cloud elimination of rough difference algorithm is performed according to initial seed point gradual Triangulation network filtering algorithm, obtain exposed ground cloud data；B4：Digital elevation model interpolation algorithm is performed according to exposed ground cloud data, obtains the digital elevation in photographing region Model.
- A kind of 4. quick pattern splicing method of power line gallery digital cameras in general use according to claim 1, it is characterised in that The step S4 is specifically included：C1：Original image to be inlayed in digital elevation model carries out orthography piecewise and corrected, and calculates and obtains initial edge Rule；C2：Block-by-block image filling is carried out to original image to be inlayed according to initial line of inlaying, generates overall mosaic map mosaic；C3：Color balance algorithm is performed to overall mosaic map mosaic and initial line of inlaying, obtains and exports overall image figure.
- A kind of 5. quick pattern splicing method of power line gallery digital cameras in general use according to claim 2, it is characterised in that The lens system error parameter specifically includes：Focal length parameter, principal point offset parameter, radial distortion parameter, tangential distortion parameter.
- A kind of 6. quick puzzle device of power line gallery digital cameras in general use, it is characterised in that including：Original optical Yunnan snub-nosed monkey module, for obtaining the original optical image of digital cameras in general use, image list is generated, Carry out sparse matching generation characteristic point information；Aerial triangulation module, for carrying out full-automatic aerial triangulation algorithm according to image list and characteristic point information, Export encrypted result；DEM generation modules, for generating the digital elevation model in photographing region according to encrypted result；Entirety inlays module, carries out orthography piecewise to digital elevation model for traditionally geometric correction mode and corrects, Calculating initially inlays line and realizes inlaying for overall image figure.
- A kind of 7. quick puzzle device of power line gallery digital cameras in general use according to claim 6, it is characterised in that The aerial triangulation module specifically includes：Screening unit, for performing filtering algorithm to image list according to characteristic point information, obtain initial pictures pair；SYSTEM ERROR MODEL generation unit, for going out system according to the geometrical-restriction relation automatic Verification of initial pictures pair after screening Lens system error parameter, generate SYSTEM ERROR MODEL；Overall region net adjusted data solving unit is tight for being met according to SYSTEM ERROR MODEL execution the initial pictures after screening The overall region net adjusted data of close collinear condition resolves；Output unit is detected, for detecting whether calculation result meets default testing conditions, if so, encrypted result is then exported, If it is not, then search for new initial pictures pair and return to execution system error model generation unit.
- A kind of 8. quick puzzle device of power line gallery digital cameras in general use according to claim 6, it is characterised in that The DEM generation modules specifically include：Neighborhood obligatory point cloud elimination of rough difference unit is thick for performing neighborhood obligatory point cloud to the three-dimensional point cloud coordinate in encrypted result Difference rejects algorithm；Initial seed point acquiring unit, for being obtained according to the three-dimensional point cloud coordinate after execution neighborhood obligatory point cloud elimination of rough difference algorithm Take initial seed point；Exposed ground cloud data acquisition module, for according to initial seed point to perform neighborhood obligatory point cloud elimination of rough difference algorithm Three-dimensional point cloud coordinate afterwards performs gradual triangulation network filtering algorithm, obtains exposed ground cloud data；Digital elevation model interpolation unit, for performing digital elevation model interpolation algorithm according to exposed ground cloud data, obtain Obtain the digital elevation model in photographing region.
- A kind of 9. quick puzzle device of power line gallery digital cameras in general use according to claim 6, it is characterised in that The entirety is inlayed module and specifically included：Orthography corrects unit piecewise, and orthogonal projection piecewise is carried out for the original image to be inlayed in digital elevation model As correcting, calculate to obtain and initially inlay line；Block-by-block image fills unit, for carrying out block-by-block image filling, generation to original image to be inlayed according to initial line of inlaying Overall mosaic map mosaic；Overall image figure obtains and output unit, for performing color balance algorithm to overall mosaic map mosaic and initial line of inlaying, obtains Obtain and export overall image figure.
- 10. a kind of quick puzzle device of power line gallery digital cameras in general use according to claim 7, its feature exist In the lens system error parameter specifically includes：Focal length parameter, principal point offset parameter, radial distortion parameter, tangential distortion ginseng Number.
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| CN113920030A (en) * | 2021-10-25 | 2022-01-11 | 自然资源部国土卫星遥感应用中心 | Large-area high-fidelity satellite remote sensing image uniform color mosaic processing method and device |
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