CN103884321A - Remote-sensing image mapping process - Google Patents
Remote-sensing image mapping process Download PDFInfo
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- CN103884321A CN103884321A CN201410153556.4A CN201410153556A CN103884321A CN 103884321 A CN103884321 A CN 103884321A CN 201410153556 A CN201410153556 A CN 201410153556A CN 103884321 A CN103884321 A CN 103884321A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
- G01C11/04—Interpretation of pictures
- G01C11/30—Interpretation of pictures by triangulation
- G01C11/34—Aerial triangulation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
Abstract
The invention discloses a remote-sensing image mapping process. The process comprises the following steps: firstly, acquiring data sources; secondly, carrying out control survey on field pictures; thirdly, carrying out interior work aerial triangulation; fourthly, acquiring DEM data, and editing DEM data sets; fifthly, manufacturing a DOM (digital orthophoto map); sixthly, carrying out field electronic plotting, namely carrying out field plotting by an electronic plotting system so as to obtain a two-dimensional electronic plotting map, and moreover, carrying out on-site supplementary survey on surface features which need field supplementary survey in a measured area; seventhly, carrying out three-dimensional treatment on electronic plotted maps, namely adding the DEM data in the two-dimensional electronic plotting map according to the DEM data sets, and adding the on-site supplementary survey data so as to obtain a three-dimensional electronic plotting map; eighthly, amending data; ninthly, manufacturing a DLG (digital line graphic); and tenthly, storing data into a base as well as outputting 3D products. The method provided by the invention is simple in step, reasonable in design and convenient to implement, has a good using effect, and can simply, conveniently and rapidly complete the mapping process of remote sensing images.
Description
Technical field
The invention belongs to Remote Sensing Image Processing Technology field, especially relate to a kind of remote sensing image and become figure technique.
Background technology
Remote sensing technology is according to electromagnetic theory, applies the electromagnetic wave information of various sensor apparatus to distant object institute's radiation and reflection, collects, processes, and last imaging, thereby the various scenery in ground is carried out to a kind of complex art of detecting and identifying.Actual while carrying out remote sensing survey, the instrument (as aerial camera, scanner, radar etc.) that needs to adopt remote-sensing flatform (as aircraft, artificial earth satellite, space shuttle etc.) and be loaded into the sensing atural object on remote-sensing flatform, wherein adopts radar interference to measure the elevation information that can directly obtain landform.In addition, growing along with to digital space information requirement, people more and more pay close attention to Digital Photography Product, such as 3D product, specifically comprise that digital line draws map (be called for short DLG), digital elevation model (vehicle economy M) and digital orthophoto map (abbreviation DOM).Digital elevation model is at the upper planimetric coordinates of regular grid point of a certain projection plane (as Gauss projection plane) and the data set of elevation.Digital orthophoto map is to utilize digital elevation model (or directly obtaining with digital form) airphoto (or space flight image) to scan digitizing, corrects and digital mosaic, then shear according to figure amplitude range the image data collection generating through numerical differentiation.Particularly: digital orthophoto map is to utilize the digitized airphoto/remote sensing image (monochrome/colour) of digital elevation model to scan process, carry out height displacement's correction through picture dot one by one, press again image mosaic, cut out the image data of generation according to figure amplitude range.It is to utilize Aero-Space image by image is identified and vector quantization that digital line is drawn map, sets up the vector data collection of basic geographic elements layering storage, has both comprised that spatial information also comprised attribute information, can be used for the space orientation basis of each special information system.
Since 21 century, under world's new and high technology fast development and the fast changing huge promotion of social demand, Mapping Informatization is with the fashionable whole world of posture of its hurricane, and China accelerates to have entered the intensive and industrial transformation of innovation period." Internet of Things ", " birth in succession of digital earth and " the wisdom earth "; for mapping geography information science and technology has been opened up more wide development space and condition more easily; the while also the trend of the times to spatial data and quick obtaining renewal, higher requirement have been proposed, obtain real time implementation, information interaction networking, publicization of infrastructure, information service socialization, information sharing legalization, technical system digitizing etc. in the urgent need to mass data.Highlight in occupation of the conventional photogrammetric measurement pattern of leading position for a long time that operation is loaded down with trivial details, the production cycle is long, high in cost of production is not enough, brought huge challenge to the mapping operations person of the new period.It is to utilize mobile device (for example PDA) to carry digital surveying and mapping product that electronics is adjusted the system of painting, and by data being edited to demonstration, completes Field mapping operation on mobile device.
High-resolution satellite image imaging system have effective good, practical, data acquisition is easy, with short production cycle, cost is low, efficiency high, and can provide that high resolving power is panchromatic, multispectral image and stereo image-forming function, for the national economic development and social progress provide requisite Data safeguard, also for Surveying and Mapping Industry quick obtaining large scale trend of the times geography information, carry out quick surveying of new generation and brought fountainhead not to the utmost, made up the deficiency of traditional data source and data abstraction techniques in good time.However, based on the surveying and mapping technology of aerospace remote sensing image, the depth & wideth of application only limits to the change of data source, the not too large change of conventional production technology, become the raising of figure efficiency very little, conventional one-tenth chart-pattern has not adapted to the needs of economic development, and market competition status is very passive.Therefore, exploring Fundamental Geographic Information System fast and efficiently extracts with 3D production new technology extremely urgent.To sum up, nowadays lack a kind of method step simple, reasonable in design and realize the remote sensing image convenient, result of use is good and become figure technique, can be easy, the mapping process that completes fast remote sensing image.
Summary of the invention
Technical matters to be solved by this invention is for above-mentioned deficiency of the prior art, provide a kind of remote sensing image to become figure technique, its method step simple, reasonable in design and realize convenient, result of use is good, can be easy, the mapping process that completes fast remote sensing image.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of remote sensing image becomes figure technique, it is characterized in that this technique comprises the following steps:
Step 1, data source are obtained: obtain the remote sensing image data in measured region, and obtained remote sensing image data is inputed to data processor; Described remote sensing image data is satellite remote-sensing image data or photogrammetric measurement image data;
Step 2, field operation control survey of aerial photograph: multiple picture control points of laying in measured region are measured respectively, and obtained control survey of aerial photograph data;
Step 3, interior industry aerotriangulation: adopt described data processor to carry out aerotriangulation to the control survey of aerial photograph data that obtain in step 2, obtain empty three enciphered datas;
Step 4, dem data obtain and dem data collection editor: according to sky three enciphered datas in remote sensing image data described in step 1 and step 3, and adopt described data processor to obtain the dem data in measured region, and obtained dem data is edited and is obtained the dem data collection in measured region, just complete the manufacturing process of the DEM digital elevation model in measured region;
Step 5, DOM digital orthophoto map are made: described data processor call number orthophotoquad is made module and utilized the DEM digital elevation model of made in step 4, remote sensing image data described in step 1 is processed and obtained the DOM data set in measured region, and complete the manufacturing process of the DOM digital orthophoto map in measured region;
Step 6, field operation electronics are adjusted and are painted: adopt electronics to adjust the system of painting to carry out field operation tune and paint, acquisition Two-dimensional electron is adjusted and painted map; And, measured region domestic demand is carried out to the atural object of field operation benefit survey and mends survey on the spot;
Step 7, electronics are adjusted and are painted the processing of map three dimensional stress: according to the dem data collection in measured region in step 4, in painting map, the tune of Two-dimensional electron described in step 6 adds dem data, and survey after the data interpolation obtaining mending on the spot in step 6, acquisition three-dimensional electronic is adjusted and is painted map;
Step 8, data correction: adjust and paint map according to three-dimensional electronic described in step 7, the data in DOM data set described in the collection of dem data described in step 4 and step 5 are revised;
Step 9, DLG digital line are drawn cartography: described data processor calls DLG data acquisition module and first the described dem data collection after data correction and described DOM data set in step 8 carried out to editing and processing, and gather out the relief data collection and the atural object data set that need to make DLG digital line and draw map, again described relief data collection and atural object data set are merged, obtain the vector data collection of basic geographic elements in measured region, the manufacturing process that just completes DLG digital line and draw map;
Step 10, data loading and 3D output of products: described data processor is stored to vector data collection described in revised dem data collection and DOM data set and step 9 in step 8 respectively in dem data Ji Ku, DOM data set storehouse and the vector data collection storehouse of setting up in advance in storer, and export being stored to after described dem data collection, DOM data set and vector data collection in described storer is converted to respectively graphical format, the DEM digital elevation model, DOM digital orthophoto map and the DLG digital line that just obtain measured region are drawn map; Described storer and described data processor join.
Above-mentioned a kind of remote sensing image becomes figure technique, it is characterized in that: in step 4, carry out dem data while obtaining with dem data collection editor, the dem data that need cover intensive region to atural object on earth's surface in measured region carries out hand inspection, and according to check result, the corresponding dem data in described dem data collection is modified; In step 5, carry out DOM digital orthophoto map while making, the DOM data that need cover intensive region to atural object on earth's surface in measured region are carried out hand inspection, and according to check result, the corresponding DOM data in described DOM data set are modified.
Above-mentioned a kind of remote sensing image becomes figure technique, it is characterized in that: in step 6, adopt electronics to adjust the system of painting to carry out field operation and adjust while painting, utilize the digital orthophoto map of DOM described in step 5 to adjust and paint.
Above-mentioned a kind of remote sensing image becomes figure technique, it is characterized in that: in step 6, adopt electronics to adjust the system of painting to carry out field operation and adjust while painting, only need carry out field operation to need and adjust the two dimensional surface information of painting atural object to adjust to paint; While adding dem data in step 7 in map painted in described Two-dimensional electron tune, according to DOM digital orthophoto map described in the collection of dem data described in step 4 and step 5, described data processor calls altitude figures assignment module and adjusts the altitude figures of painting each atural object in map to carry out one by one assignment to described Two-dimensional electron.
Above-mentioned a kind of remote sensing image becomes figure technique, it is characterized in that: in step 3, complete after interior industry aerotriangulation, also need according to sky three enciphered datas in remote sensing image data described in step 1 and step 3, create the stereoscopic model in measured region, and the atural object that can not meet mapping precision requirement in described stereoscopic model is marked; In step 6, needing to carry out field operation mends the atural object of surveying and comprises that photography time to the field operation electronics that can not meet remote sensing image data described in atural object that mapping precision requires and step 1 in described stereoscopic model is adjusted during painting and change and newly-increased atural object in measured region.
Above-mentioned a kind of remote sensing image becomes figure technique, it is characterized in that: while carrying out data correction in step 8, according to revised described dem data collection and described DOM data set, described stereoscopic model is modified, and amended described stereoscopic model is carried out to hand inspection, and more described stereoscopic model is modified according to check result.
Above-mentioned a kind of remote sensing image becomes figure technique, it is characterized in that: while carrying out interior industry aerotriangulation in step 3, adopt inertial navigation system or gps system to measure, and measure based on strict physical model or RPC model.
Above-mentioned a kind of remote sensing image becomes figure technique, it is characterized in that: the data of satellite remote-sensing image described in step 1 and described photogrammetric measurement image data, be and adopt synthetic-aperture radar SAR or interference synthetic aperture radar INSAR to carry out to measured region the remote sensing image data that remote sensing survey obtains.
Above-mentioned a kind of remote sensing image becomes figure technique, it is characterized in that: in step 6 to measured region domestic demand carry out field operation mend survey atural object mend on the spot survey time, need carry out field survey to the three-dimensional information in Suo Bu geodetic district.
Above-mentioned a kind of remote sensing image becomes figure technique, it is characterized in that: while adding dem data in step 7 in map painted in described Two-dimensional electron tune, described data processor adopts generalized information system that described Two-dimensional electron is adjusted and painted DEM set of digits described in map and step 4 and carry out stackedly, just can Auto-matching show that described three-dimensional electronic tune paints map.
The present invention compared with prior art has the following advantages:
1, method step simple, reasonable in design and realize convenient, easy and simple to handle, practical.
2, automaticity is higher, can cause that each conventional remote sensing image becomes the adjustment of each operation personnel in figure technique, device structure ratio, some is originally by a large amount of artificial or semi-artificial intensity work completing, as: the on-the-spot tune of field operation is painted, the three-dimensional intensive work gathering of interior industry, has realized automatic or semi-automatic operation.
3, remote sensing image becomes the production efficiency of figure high, the present invention realized field operation electronics adjust paint, interior industry data acquisition and data edition integrated, in the collection of each topomap key element and editor, repetition and the intersection of concerned process steps are eliminated, save manpower, shortened the duration, efficiency improves more than 40% than conventional one-tenth figure technique.
4, the quality of made 3D product is high, become the automaticity of figure technique also to improve thereupon, and also make operation intensity reduce, meanwhile inspection strengthens, interior industry data acquisition in former one-tenth figure technique, editor's main contents are by becoming inspection from actual job, between operation, responsibility is clearer and more definite, can guarantee that each link is guaranteed the quality and finish the work, in ever-present interior industry editor, find field operation problem such as there will not be sensitive paper matter tune to plot in fruit, again, secondary even carries out field operation for three times to be processed repeatedly, cause the duration to delay, cost strengthens, imaging quality is difficult to the problems such as assurance.
5, industryization and interior industry working routine in field process have been realized, operation designs science, reasonable more, make original atural object attribute problem of only having field operation Solve on site, because orthophotoquad exists the point such as high resolving power, high precision, and can obtain elevation information by Auto-matching, and corresponding automatic mapping contour line information, for the interior industry interpretation of atural object attribute information provides reliable basis, accuracy, degree and the efficiency of interior industry decipher obviously improve.Interior industry data acquisition operation, owing to adopting image Auto-matching and elevation automatically to add, thereby realize electronics and adjusted the three dimensional stress that plots fruit two-dimensional signal, gather operating personnel and only need on stereoscopic model, check modification, gather without full key element is manual, make to gather operating personnel and free from heavy mental and manual labor.To sum up, the present invention has reduced manual operation, has reduced operating personnel's labour intensity, and also having reduced people is the chance of makeing mistakes, and between operation, responsibility is clearer and more definite.
6, the difference part that becomes figure technique with conventional remote sensing image, is mainly reflected in: 1. the solid collection of full key element is no longer carried out in aerotriangulation after completing, but automatically makes dem data collection and DOM digital orthophoto map; 2. to adjust all qualitative, the locating information of painting be to be no longer only labeled on paper medium to field operation, but formed final electronic data achievement; 3. field operation Two-dimensional electron is adjusted and is painted map and can carry out overlay analysis with dem data, can automatically realize the automatic assignment of elevation information, obtains three-dimensional electronic and adjusts and paint data; 4. three-dimensional collection of interior industry is no longer that full key element completes by hand, is only to check and revise on stereoscopic model.Thereby, the present invention proposes one and can realize increasingly automated, inside and outside trade integration remote sensing image and become figure technique, change the one-tenth figure technique of conventional remote sensing image completely.Design science of the present invention, reasonable and easy to operate, automaticity is high, change traditional aerial survey and become the operation independent situation that also cannot replace separately in figure technique, really having realized field operation tune paints, the three-dimensional collection of interior industry is integrated with data edition, three-in-one fusion makes in operation separate, the division of labor is clear and definite, no longer occur repeating in operation, alleviate operating personnel's labour intensity, having reduced people is the chance of making a mistake, improve mapping product quality, work efficiency is largely increased, make the raising of surveying production product quality and production efficiency produce qualitative leap.Remote sensing image of the present invention becomes ten operations in figure technique to be the arrangement of " yi word pattern " flowing water, form a connecting link each other, whole operation process has presented the advantage of " artificial amount reduces, and automaticity improves ", is conducive to improve the quality of products and efficiency; The production of DEM and DOM mainly adopts automatic producing technology, only covers intensive region on earth's surface, carries out some human interventions, inspection and edit-modify.Simultaneously, the orthophotoquad precision of made is high and have and the level line product of orthophotoquad fit, adjust to paint at electronics and under system support, complete field operation and adjust and paint, can make full use of image information and terrain information, make field process become time saving and energy saving, much work has been moved to indoor from field, only need to patrol and mend and survey and atural object (as large scale becomes to scheme thin portion part dimension) that mapping precision does not meet code requirement is adjusted and painted with newly-increased atural object in field.Electronics is adjusted and painted outcome data is the 2-D data achievement obtaining on decipher and field study basis on orthophotoquad.For interior industry editorial staff, correctly input Two-dimensional electron by outdoor workers completely and adjust that to paint map total due to note elements such as all place names, title, explanations, no longer need manual papery fair drawing; About mending the compilation of geodetic thing, completed by outdoor workers completely, thereby no longer for this reason the wasting time and energy of interior industry editorial staff; Interior industry editorial staff's groundwork is the interpolation of the symbolism of carrying out key element in figure, regular the map decorate, the outer annotation of figure and mapborder, the processing of logical relation, and this operation workload reduces more than 50%.
7, practical value is high and process is reliable, for the renewal item of at present a large amount of basic space data has been opened up a new tunnel, before upgrading, first utilize matching technique under stereoscopic model, to merge well new and old one-tenth figure achievement, easy-to-look-up region of variation and renewal, very practical to implementing renewal item.
8, applied widely, be common to various engineer's scale map datums and produce.
In sum, the inventive method step simple, reasonable in design and realize convenient, result of use is good, can be easy, the mapping process that completes fast remote sensing image, in effectively improving mapping product quality, also can increase substantially production efficiency, reduce operating personnel's labour intensity.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention.
Embodiment
A kind of remote sensing image as shown in Figure 1 becomes figure technique, comprises the following steps:
Step 1, data source are obtained: obtain the remote sensing image data in measured region, and obtained remote sensing image data is inputed to data processor; Described remote sensing image data is satellite remote-sensing image data or photogrammetric measurement image data.
In the present embodiment, described satellite remote-sensing image data and described photogrammetric measurement image data, be and adopt synthetic-aperture radar SAR or interference synthetic aperture radar INSAR to carry out to measured region the remote sensing image data that remote sensing survey obtains.Adopt synthetic-aperture radar SAR or interference synthetic aperture radar INSAR to measure the elevation information that can directly obtain landform.
Step 2, field operation control survey of aerial photograph: multiple picture control points of laying in measured region are measured respectively, and obtained control survey of aerial photograph data.
Step 3, interior industry aerotriangulation: adopt described data processor to carry out aerotriangulation to the control survey of aerial photograph data that obtain in step 2, obtain empty three enciphered datas.
In the present embodiment, while carrying out interior industry aerotriangulation, adopt inertial navigation system or gps system to measure, and measure based on strict physical model or RPC model.
That is to say, while carrying out interior industry aerotriangulation, utilize the measured data of inertial navigation system or gps system, and measure based on strict physical model or RPC model.
In step 1 data source obtain, in step 2 in field operation control survey of aerial photograph and step 3 in industry aerotriangulation, be the basis that remote sensing image one-tenth figure produces.Nowadays, along with the development of satellite remote sensing technology and digital aviation camera work, positioning precision and the resolution of image improve constantly, and production efficiency also improves thereupon.
Step 4, dem data obtain and dem data collection editor: according to sky three enciphered datas in remote sensing image data described in step 1 and step 3, and adopt described data processor to obtain the dem data in measured region, and obtained dem data is edited and is obtained the dem data collection in measured region, just complete the manufacturing process of the DEM digital elevation model in measured region.
Step 5, DOM digital orthophoto map are made: described data processor call number orthophotoquad is made module and utilized the DEM digital elevation model of made in step 4, remote sensing image data described in step 1 is processed and obtained the DOM data set in measured region, and complete the manufacturing process of the DOM digital orthophoto map in measured region.
Step 6, field operation electronics are adjusted and are painted: adopt electronics to adjust the system of painting to carry out field operation tune and paint, acquisition Two-dimensional electron is adjusted and painted map; And, measured region domestic demand is carried out to the atural object of field operation benefit survey and mends survey on the spot.
In the present embodiment, adopt electronics to adjust the system of painting to carry out field operation tune and paint, adjust the method for painting to carry out field operation tune according to conventional field operation and paint.
Step 7, electronics are adjusted and are painted the processing of map three dimensional stress: according to the dem data collection in measured region in step 4, in painting map, the tune of Two-dimensional electron described in step 6 adds dem data, and survey after the data interpolation obtaining mending on the spot in step 6, acquisition three-dimensional electronic is adjusted and is painted map.
Step 8, data correction: adjust and paint map according to three-dimensional electronic described in step 7, the data in DOM data set described in the collection of dem data described in step 4 and step 5 are revised.
Step 9, DLG digital line are drawn cartography: described data processor calls DLG data acquisition module and first the described dem data collection after data correction and described DOM data set in step 8 carried out to editing and processing, and gather out the relief data collection and the atural object data set that need to make DLG digital line and draw map, again described relief data collection and atural object data set are merged, obtain the vector data collection of basic geographic elements in measured region, the manufacturing process that just completes DLG digital line and draw map.
The actual DLG digital line that carries out is while drawing cartography, paint the content of the qualitative and location of the each atural object on map is all painted and is determined by field operation tune due to described Two-dimensional electron tune, and the qualitative and locating content of each atural object all marks in described Two-dimensional electron and adjusts and paint on map, thereby the interior industry decipher process of each atural object is very easy.
Step 10, data loading and 3D output of products: described data processor is stored to vector data collection described in revised dem data collection and DOM data set and step 9 in step 8 respectively in dem data Ji Ku, DOM data set storehouse and the vector data collection storehouse of setting up in advance in storer, and export being stored to after described dem data collection, DOM data set and vector data collection in described storer is converted to respectively graphical format, the DEM digital elevation model, DOM digital orthophoto map and the DLG digital line that just obtain measured region are drawn map; Described storer and described data processor join.
In the present embodiment, in step 4, carry out dem data while obtaining with dem data collection editor, the dem data that need cover intensive region to atural object on earth's surface in measured region carries out hand inspection, and according to check result, the corresponding dem data in described dem data collection is modified.
Correspondingly, carry out DOM digital orthophoto map while making in step 5, the DOM data that need cover intensive region to atural object on earth's surface in measured region are carried out hand inspection, and according to check result, the corresponding DOM data in described DOM data set are modified.
That is to say, while adopting the present invention to carry out remote sensing image one-tenth figure, the manufacturing process of DEM digital elevation model and DOM digital orthophoto map mainly adopts described data processor automatically to complete, and only atural object on earth's surface in described measured region is covered to intensive region and carries out manual intervention, inspection and correction.In the time not having in measured region on earth's surface that atural object covers intensive region, the manufacturing process of DEM digital elevation model and DOM digital orthophoto map all adopts described data processor automatically to complete, and not only make efficiency is high, time saving and energy saving, and cartographic accuracy is high, has avoided personal error.
In the present embodiment, in step 6, adopt electronics to adjust the system of painting to carry out field operation and adjust while painting, utilize the digital orthophoto map of DOM described in step 5 to adjust and paint.
And, in step 6, adopt electronics to adjust the system of painting to carry out field operation and adjust while painting, only need carry out field operation to need and adjust the two dimensional surface information of painting atural object to adjust to paint; While adding dem data in step 7 in map painted in described Two-dimensional electron tune, according to DOM digital orthophoto map described in the collection of dem data described in step 4 and step 5, described data processor calls altitude figures assignment module and adjusts the altitude figures of painting each atural object in map to carry out one by one assignment to described Two-dimensional electron.
In the present embodiment, in step 3, complete after interior industry aerotriangulation, also need, according to sky three enciphered datas in remote sensing image data described in step 1 and step 3, to create the stereoscopic model in measured region, and the atural object that can not meet mapping precision requirement in described stereoscopic model is marked.In step 6, needing to carry out field operation mends the atural object of surveying and comprises that photography time to the field operation electronics that can not meet remote sensing image data described in atural object that mapping precision requires and step 1 in described stereoscopic model is adjusted during painting and change and newly-increased atural object in measured region.
While obtaining dem data in step 4, obtain according to created stereoscopic model.While carrying out the making of DOM digital orthophoto map in step 5, make according to created stereoscopic model.
While creating described stereoscopic model, first obtain elements of exterior orientation and the model tie point object coordinates of each photo in described remote sensing image data, then import aerotriangulation encryption achievement and carry out stereogram relative orientation, automatically create stereoscopic model.
The atural object that wherein, can not meet mapping precision requirement in described stereoscopic model comprises the atural object that image fog, unclear atural object and shade hide.
In the present embodiment, while carrying out data correction in step 8, according to revised described dem data collection and described DOM data set, described stereoscopic model is modified, and amended described stereoscopic model is carried out to hand inspection, and more described stereoscopic model is modified according to check result.
In the present embodiment, adjust according to conventional field operation the method for painting, need are carried out to the atural object of field operation benefit survey and mend survey.In step 6 to measured region domestic demand carry out field operation mend survey atural object mend on the spot survey time, need carry out field survey to the three-dimensional information in Suo Bu geodetic district.
Remote sensing image of the present invention becomes in figure technique, and it is easy that operation painted in electronics tune, only needs the atural object that need is carried out to the survey of field operation benefit to mend survey on the spot, and needs the atural object amount of benefit survey considerably less.In addition, the field operation electronics adopting adjusts the system of painting simple, adopt a mobile device, and only need are carried out to field operation and adjust the two dimensional surface information of painting atural object to adjust to paint, described Two-dimensional electron adjust paint the method for making of map easy, adopt three-dimensional graphics software just can complete and make precision to be easy to assurance.And the actual electronics field operation of carrying out is adjusted while painting, adjusts and paints in step 5 on the DOM digital orthophoto map of made, practical operation is easier.Thereby, the present invention can be easy, fast and high-quality realize field operation and adjust the electronization of painting product, paint the content qualitative and location of the each atural object on map due to described Two-dimensional electron tune and all determined by field operation, thereby can effectively guarantee the precision of made 3D product.Wherein, the qualitative content of each atural object refers to the attribute of atural object.
In the present embodiment, while adding dem data in step 7 in map painted in described Two-dimensional electron tune, described data processor employing generalized information system is painted DEM set of digits described in map and step 4 by described Two-dimensional electron tune and is carried out stacked, just can Auto-matching showing that described three-dimensional electronic is adjusted paints map, can directly field operation electronics tune be painted to data and automatically be updated to three-dimensional from two dimension, collector only need to check modification on described stereoscopic model.Thereby method step is simple and realization is very easy, and the precision that map painted in the described three-dimensional electronic tune that obtains is higher.Become in figure technique with conventional remote sensing image, the full key element collection of the enterprising pedestrian's work of interior industry stereoscopic model adopting is compared, no longer need the high-strength working of hand, pin, brain, eye four officials use, the no longer every tree and every blade of grass of sketching of a stroke, remote sensing image becomes figure production efficiency to improve at least 50%, and becomes the impact of figure manufacturing schedule and product quality the most obvious on remote sensing image.
Remote sensing image of the present invention becomes in figure technique, and the process of carrying out data loading and 3D output of products in step 10 is very easy.Conventional remote sensing image becomes in figure technique; operating personnel need spend a large amount of time field operation adjust paint the editor of dimensional data and examine; and usually can hand over unclear or condition is inadequate because of data; surveyor cannot complete clean up editing; leave over a lot of problems; repeatedly field operation is repeatedly, very unfavorable to whole duration and quality for needs.For a long time, this phenomenon is perplexing Surveying and Mapping Project managerial personnel always.And remote sensing image of the present invention becomes figure technique effectively to address the above problem, it is very light that data edition personnel's work becomes, and its data edition work at least reduces half.
In the present embodiment, carry out before field operation electronics adjusts and paint in step 6, the region of, story height intensive for City Building and relating in the situation of eave correction, need, before field operation is adjusted and painted, carry out three-dimensional collection in early stage to intensive residential block, paints for field operation tune.
Remote sensing image disclosed by the invention becomes figure technique the collection in original one-tenth figure and editor's operation are converted into check to be that master, operation are auxiliary technique, utilize the three-dimensional satellite remote-sensing image of 0.5 meter of resolution and Wei Ping hilly area, measured region to carry out after 5000 one-tenth figure of 1 ︰, plane precision and vertical accuracy to one-tenth figure detect, plane precision detects and show that middle error is ± 0.82 meter, vertical accuracy detects and show that middle error is ± 0.3 meter, far beyond the mapping precision requirement of 1 ︰ 5000 aerial topographic maps that stipulate in standard.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every any simple modification of above embodiment being done according to the technology of the present invention essence, change and equivalent structure change, and all still belong in the protection domain of technical solution of the present invention.
Claims (10)
1. remote sensing image becomes a figure technique, it is characterized in that this technique comprises the following steps:
Step 1, data source are obtained: obtain the remote sensing image data in measured region, and obtained remote sensing image data is inputed to data processor; Described remote sensing image data is satellite remote-sensing image data or photogrammetric measurement image data;
Step 2, field operation control survey of aerial photograph: multiple picture control points of laying in measured region are measured respectively, and obtained control survey of aerial photograph data;
Step 3, interior industry aerotriangulation: adopt described data processor to carry out aerotriangulation to the control survey of aerial photograph data that obtain in step 2, obtain empty three enciphered datas;
Step 4, dem data obtain and dem data collection editor: according to sky three enciphered datas in remote sensing image data described in step 1 and step 3, and adopt described data processor to obtain the dem data in measured region, and obtained dem data is edited and is obtained the dem data collection in measured region, just complete the manufacturing process of the DEM digital elevation model in measured region;
Step 5, DOM digital orthophoto map are made: described data processor call number orthophotoquad is made module and utilized the DEM digital elevation model of made in step 4, remote sensing image data described in step 1 is processed and obtained the DOM data set in measured region, and complete the manufacturing process of the DOM digital orthophoto map in measured region;
Step 6, field operation electronics are adjusted and are painted: adopt electronics to adjust the system of painting to carry out field operation tune and paint, acquisition Two-dimensional electron is adjusted and painted map; And, measured region domestic demand is carried out to the atural object of field operation benefit survey and mends survey on the spot;
Step 7, electronics are adjusted and are painted the processing of map three dimensional stress: according to the dem data collection in measured region in step 4, in painting map, the tune of Two-dimensional electron described in step 6 adds dem data, and survey after the data interpolation obtaining mending on the spot in step 6, acquisition three-dimensional electronic is adjusted and is painted map;
Step 8, data correction: adjust and paint map according to three-dimensional electronic described in step 7, the data in DOM data set described in the collection of dem data described in step 4 and step 5 are revised;
Step 9, DLG digital line are drawn cartography: described data processor calls DLG data acquisition module and first the described dem data collection after data correction and described DOM data set in step 8 carried out to editing and processing, and gather out the relief data collection and the atural object data set that need to make DLG digital line and draw map, again described relief data collection and atural object data set are merged, obtain the vector data collection of basic geographic elements in measured region, the manufacturing process that just completes DLG digital line and draw map;
Step 10, data loading and 3D output of products: described data processor is stored to vector data collection described in revised dem data collection and DOM data set and step 9 in step 8 respectively in dem data Ji Ku, DOM data set storehouse and the vector data collection storehouse of setting up in advance in storer, and export being stored to after described dem data collection, DOM data set and vector data collection in described storer is converted to respectively graphical format, the DEM digital elevation model, DOM digital orthophoto map and the DLG digital line that just obtain measured region are drawn map; Described storer and described data processor join.
2. become figure technique according to a kind of remote sensing image claimed in claim 1, it is characterized in that: in step 4, carry out dem data while obtaining with dem data collection editor, the dem data that need cover intensive region to atural object on earth's surface in measured region carries out hand inspection, and according to check result, the corresponding dem data in described dem data collection is modified; In step 5, carry out DOM digital orthophoto map while making, the DOM data that need cover intensive region to atural object on earth's surface in measured region are carried out hand inspection, and according to check result, the corresponding DOM data in described DOM data set are modified.
3. become figure technique according to a kind of remote sensing image described in claim 1 or 2, it is characterized in that: in step 6, adopt electronics to adjust the system of painting to carry out field operation and adjust while painting, utilize the digital orthophoto map of DOM described in step 5 to adjust and paint.
4. become figure technique according to a kind of remote sensing image described in claim 1 or 2, it is characterized in that: in step 6, adopt electronics to adjust the system of painting to carry out field operation and adjust while painting, only need carry out field operation to need and adjust the two dimensional surface information of painting atural object to adjust to paint; While adding dem data in step 7 in map painted in described Two-dimensional electron tune, according to DOM digital orthophoto map described in the collection of dem data described in step 4 and step 5, described data processor calls altitude figures assignment module and adjusts the altitude figures of painting each atural object in map to carry out one by one assignment to described Two-dimensional electron.
5. become figure technique according to a kind of remote sensing image described in claim 1 or 2, it is characterized in that: in step 3, complete after interior industry aerotriangulation, also need according to sky three enciphered datas in remote sensing image data described in step 1 and step 3, create the stereoscopic model in measured region, and the atural object that can not meet mapping precision requirement in described stereoscopic model is marked; In step 6, needing to carry out field operation mends the atural object of surveying and comprises that photography time to the field operation electronics that can not meet remote sensing image data described in atural object that mapping precision requires and step 1 in described stereoscopic model is adjusted during painting and change and newly-increased atural object in measured region.
6. become figure technique according to a kind of remote sensing image claimed in claim 5, it is characterized in that: while carrying out data correction in step 8, according to revised described dem data collection and described DOM data set, described stereoscopic model is modified, and amended described stereoscopic model is carried out to hand inspection, and more described stereoscopic model is modified according to check result.
7. become figure technique according to a kind of remote sensing image described in claim 1 or 2, it is characterized in that: while carrying out interior industry aerotriangulation in step 3, adopt inertial navigation system or gps system to measure, and measure based on strict physical model or RPC model.
8. become figure technique according to a kind of remote sensing image described in claim 1 or 2, it is characterized in that: the data of satellite remote-sensing image described in step 1 and described photogrammetric measurement image data, be and adopt synthetic-aperture radar SAR or interference synthetic aperture radar INSAR to carry out to measured region the remote sensing image data that remote sensing survey obtains.
9. become figure technique according to a kind of remote sensing image described in claim 1 or 2, it is characterized in that: in step 6 to measured region domestic demand carry out field operation mend survey atural object mend on the spot survey time, need carry out field survey to the three-dimensional information in Suo Bu geodetic district.
10. become figure technique according to a kind of remote sensing image described in claim 1 or 2, it is characterized in that: while adding dem data in step 7 in map painted in described Two-dimensional electron tune, described data processor adopts generalized information system that described Two-dimensional electron is adjusted and painted DEM set of digits described in map and step 4 and carry out stackedly, just can Auto-matching show that described three-dimensional electronic tune paints map.
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