CN102645410A - Detection method, device and data processing device of coal gangue pollution scope - Google Patents
Detection method, device and data processing device of coal gangue pollution scope Download PDFInfo
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Abstract
The invention discloses a detection method, a device and a data processing device of a coal gangue pollution scope. The detection method comprises obtaining satellite remote sensing data in an object region; drawing plant spectral information data in the satellite remote sensing data; and determining the coal gangue pollution scope in the object region according to the plant spectral information data. By means of the detection method, the device and the data processing device, detection of the coal gangue pollution scope can be convenient and fast.
Description
Technical field
The present invention relates to the exploration field, in particular to a kind of detection method and device and data processing equipment of gangue pollution range.
Background technology
Gangue is the solid waste of discharging in coal mining and the dressing of coal by washing process, mainly comprises the horsestone and the roof and floor rock in coal seam, and its quantity accounts for about 15% of raw coal output.Since nearly half a century, because a large amount of exploitations in coal ground cause near the colliery, having formed large-area gangue stockyard.The existence in spoil stockyard not only takies a large amount of soils, and a large amount of sulfide (mainly being pyrite) of containing in stratum of its place can flow into surrounding environment running into when continuing rainfall or heavy rain, can pollute.Simultaneously also promote pyritous oxidation reaction, cause mine wastewater to contain the metallic ions such as iron and manganese of high concentration, further enlarged pollution face, thereby the growth of plant is impacted, the plant recovery and the ecological reconstruction of surrounding enviroment formed obstruction.
Existing investigation method to the gangue pollution detection is mainly the concentration of major pollutants in test bastard coal clitter periphery rainwash and the underground water, or through test bastard coal clitter and peripheral soil constituent, detects the pollution range of gangue.This detection technique mainly relies on a large amount of water body of collection in worksite, pedotheque; And draw relevant contamination data in lab investigation; Not only personnel, time, economically bigger input arranged; And, owing to all need accomplish test at short notice after water sample and the soil sample collection, in real work, there is bigger difficulty.
To in the prior art gangue pollution range being detected inconvenient problem, effective solution is not proposed as yet at present.
Summary of the invention
The invention provides a kind of detection method and device and data processing equipment of gangue pollution range, the gangue pollution range is detected inconvenient problem to solve at least in the prior art.
To achieve these goals, according to an aspect of the present invention, a kind of detection method of gangue pollution range is provided.
Detection method according to gangue pollution range of the present invention comprises: the satellite remote-sensing image data of obtaining the target area; Extract the plant spectral information data in the satellite remote-sensing image data; And the gangue pollution range of confirming the target area according to plant spectral information data.
Further, confirm that according to plant spectral information data the gangue pollution range of target area comprises: obtain the plant spectral signature information data of the satellite remote-sensing image data of the gangue Polluted area of storage in advance; And contrast plant spectral information data of extracting and the plant spectral signature information data of storing in advance, to confirm the gangue pollution range.
Further, before confirming the gangue pollution range according to said plant spectral information data, said method also comprises: the plant spectral signature information data of obtaining the satellite remote-sensing image data of gangue Polluted area; And confirm that according to plant spectral information data the gangue pollution range comprises: plant spectral information data that contrast is extracted and the plant spectral signature information data of obtaining, to confirm the gangue pollution range.
Further; After obtaining the satellite remote-sensing image data of target area and before the plant spectral information data in extracting the satellite remote-sensing image data; This method also comprises: the satellite remote-sensing image data are handled to obtain just penetrated remote sensing image data, the plant spectral information data of extracting in the satellite remote-sensing image data comprise: extract and just penetrating the plant spectral information data in the remote sensing image data.
Further, the satellite remote-sensing image data are handled just to be penetrated remote sensing image data comprised: obtain the basic data data, wherein, the basic data data is the data relevant with the target area landform; In conjunction with the basic data data satellite remote-sensing image data are corrected processing; To carrying out the image co-registration processing through correcting the satellite remote-sensing image data of handling; The satellite remote-sensing image data of handling through image co-registration are spared look to be handled; And the satellite remote-sensing image data of handling through even look are inlayed and cut apart to obtain just penetrate remote sensing image data.
Further, the plant spectral information data of extracting in the satellite remote-sensing image data comprise: extract the red band spectrum information data of plant, red edge band spectrum information data and near-infrared band spectral information data in the satellite remote-sensing image data; The gangue pollution range of confirming the target area according to plant spectral information data comprises: the gangue pollution range of confirming the target area according to the red band spectrum information data of plant, red edge band spectrum information data and near-infrared band spectral information data.
To achieve these goals, according to another aspect of the present invention, a kind of pick-up unit of gangue pollution range is provided, this device is used to carry out the detection method of any one gangue pollution range provided by the invention.
A kind of pick-up unit of gangue pollution range is provided according to a further aspect in the invention.The pick-up unit of this gangue pollution range comprises: first acquiring unit is used to obtain the satellite remote-sensing image data of target area; Extraction unit is used for extracting the plant spectral information data of satellite remote-sensing image data; And definite unit, be used for confirming the gangue pollution range according to plant spectral information data.
Further, confirm that the unit comprises: first acquisition module is used to obtain the plant spectral signature information data of the satellite remote-sensing image data of the gangue Polluted area of storage in advance; And first determination module, be used to contrast the plant spectral information data of extraction and the plant spectral signature information data of storage in advance, to confirm the gangue pollution range.
Further, said apparatus also comprises: second acquisition unit is used to obtain the plant spectral signature information data of the satellite remote-sensing image data of gangue Polluted area; And definite unit comprises: second determination module is used to contrast the plant spectral information data of extraction and the plant spectral signature information data of obtaining, to confirm the gangue pollution range.
Further, said apparatus also comprises: the 3rd acquiring unit is used for the satellite remote-sensing image data are handled to obtain and just penetrates remote sensing image data; And extraction unit comprises: first extraction module is used for extracting the plant spectral information data of just penetrating remote sensing image data.
Further, the 3rd acquiring unit comprises: second acquisition module, be used to obtain the basic data data, and wherein, the basic data data is the data relevant with the target area landform; Correct module, be used to combine the basic data data that the satellite remote-sensing image data are corrected processing; Fusion Module is used for carrying out the image co-registration processing through correcting the satellite remote-sensing image data of handling; Even look module is used for that the satellite remote-sensing image data of handling through image co-registration are spared look and handles; And the 3rd acquisition module, be used for the satellite remote-sensing image data of handling through even look are inlayed and cut apart to obtain just penetrating remote sensing image data.
To achieve these goals, according to a further aspect of the invention, a kind of data processing equipment is provided, this equipment comprises the pick-up unit of any one gangue pollution range provided by the invention.
Through the present invention owing to measure, thereby solved in the prior art and the gangue pollution range to have been detected the problem of inconvenience by the satellite remote sensing date that gets access to, and then make more convenient to the detection of gangue pollution range.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the structured flowchart according to the pick-up unit of the gangue pollution range of the embodiment of the invention;
Fig. 2 is the structured flowchart according to the pick-up unit of the gangue pollution range of first preferred embodiment of the invention;
Fig. 3 is the structured flowchart according to the pick-up unit of the gangue pollution range of second preferred embodiment of the invention;
Fig. 4 is the structured flowchart according to the pick-up unit of the gangue pollution range of third preferred embodiment of the invention;
Fig. 5 is the structured flowchart according to the pick-up unit of the gangue pollution range of four preferred embodiment of the invention;
Fig. 6 is the satellite image wave band synoptic diagram according to the embodiment of the invention;
Fig. 7 is the process flow diagram according to the detection method of the gangue pollution range of the embodiment of the invention;
Fig. 8 is the processing flow chart according to the satellite remote-sensing image data of the embodiment of the invention; And
Fig. 9 is the process flow diagram of the detection method of gangue pollution range according to the preferred embodiment of the invention.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the present invention.
The embodiment of the invention provides a kind of pick-up unit of gangue pollution range, below the pick-up unit of the gangue pollution range that the embodiment of the invention provided is introduced.
Fig. 1 is the structured flowchart according to the pick-up unit of the gangue pollution range of the embodiment of the invention.
As shown in Figure 1, the pick-up unit of this gangue pollution range comprises first acquiring unit 11, extraction unit 12 and definite unit 13.
First acquiring unit 11 is used to obtain the satellite remote-sensing image data of target area.
Confirm that unit 13 is used for confirming the gangue pollution range according to plant spectral information data.
In the present embodiment, measure, thereby solved in the prior art and the gangue pollution range to be detected the problem of inconvenience by the satellite remote sensing date that gets access to, so make more convenient to the detection of gangue pollution range.
Fig. 2 is the structured flowchart according to the pick-up unit of the gangue pollution range of first preferred embodiment of the invention.This embodiment can be used as the preferred implementation of the foregoing description.
As shown in Figure 2, the pick-up unit of this gangue pollution range comprises first acquiring unit 11, extraction unit 12 and definite unit 13, wherein, confirms that unit 13 comprises first acquisition module 131 and first determination module 132.
In this embodiment, through reference data stored in system in advance, therefore corresponding data and the reference data with the target area that obtains compares, and can draw pollution range, accelerated the speed of detection.
Fig. 3 is the structured flowchart according to the pick-up unit of the gangue pollution range of second preferred embodiment of the invention.This embodiment can be used as the preferred implementation of the foregoing description.
As shown in Figure 3, the pick-up unit of this gangue pollution range also comprises second acquisition unit 14 except comprising acquiring unit 11, extraction unit 12 and definite unit 13, wherein, confirms that unit 13 also comprises second determination module 133.
In this embodiment; When obtaining the plant spectral signature information data of target area; Obtain the related data of confirming as Polluted area or having confirmed as uncontaminated zone; Compare with the plant spectral signature information data of target area, the pollution range of so confirming has combined local situation on the spot, so testing result is more accurate.
Fig. 4 is the structured flowchart according to the pick-up unit of the gangue pollution range of third preferred embodiment of the invention.This embodiment can be used as the preferred implementation of the foregoing description.
As shown in Figure 4, the pick-up unit of this gangue pollution range also comprises the 3rd acquiring unit 15 except comprising first acquiring unit 11, extraction unit 12 and definite unit 13, and wherein, extraction unit 12 comprises first extraction module 121.
The 3rd acquiring unit 15 is used for the satellite remote-sensing image data are handled to obtain just penetrates remote sensing image data.
In this embodiment, remote sensing image data extracts and is just penetrating remote sensing image data via satellite, and these data have higher precision, thereby has improved the accuracy that detects.
Fig. 5 is the structured flowchart according to the pick-up unit of the gangue pollution range of four preferred embodiment of the invention.This embodiment can be used as the preferred implementation of the foregoing description.
As shown in Figure 5; The pick-up unit of this gangue pollution range comprises first acquiring unit 11, extraction unit 12, confirms unit 13 and the 3rd acquiring unit 15; Wherein, the 3rd acquiring unit 15 comprise second acquisition module 151, correct module 152, Fusion Module 153, even look module 154 and the 3rd acquisition module 155.
Fusion Module 153 is used for carrying out the image co-registration processing through correcting the satellite remote-sensing image data of handling.
Even look module 154 is used for that the satellite remote-sensing image data of handling through image co-registration are spared look and handles.
The 3rd acquisition module 155 is used for just penetrating remote sensing image data to inlaying and cut apart to obtain through the satellite remote-sensing image data of even look processing.
Inlay and be meant two width of cloth or several remote sensing images are stitched together, constitute a width of cloth overall image.
Cut apart and be meant the target that is divided into a width of cloth remote sensing image the regional of non-overlapping copies and extraction needs.
In this embodiment, through processing to the satellite remote-sensing image data, obtain precision higher just penetrate remote sensing image data, thereby improved the accuracy that detects.
Need to prove that the pick-up unit of the gangue pollution range that device is described among the embodiment is corresponding to the detection method embodiment of hereinafter gangue pollution range, its concrete implementation procedure will be elaborated among the method embodiment hereinafter.
The invention provides a kind of data processing equipment; The pick-up unit that can comprise any one gangue pollution range that the embodiment of the invention provides in this data processing equipment; Perhaps; Make the pick-up unit of this gangue pollution range run on this data processing equipment; So that this data processing equipment can obtain satellite remote sensing date, and through the plant spectral information data in the satellite remote sensing date extraction satellite remote-sensing image data of obtaining, thereby reach the purpose of confirming the gangue pollution range.
The embodiment of the invention also provides a kind of detection method of gangue pollution range, and this method can be carried out based on above-mentioned device.
WorldView-2 satellite in the present embodiment can provide 8 exclusive wave band high-resolution satellite images.(blue wave band: 450-510 except four common wave bands; Green wave band: 510-580; Red wave band: 630-690; Near infrared 1 wave band: 770-895), also have four newly-increased wave bands (seashore wave band: 400-450, yellow wave bands; 585-625, red edge wave band: 705-745, near infrared 2 wave bands: 860-1040), the wave band synoptic diagram is seen Fig. 6.
As can beappreciated from fig. 6; Newly-increased wave band has remedied the white space of original four wave band datas between 585-625nm and 705-745nm; And but the survey region of original near-infrared band extended to 1050nm, expanded the research field of satellite remote sensing technology greatly.
Present embodiment mainly utilizes in the WorldView-2 satellite high-spectral data red wave band, red edge wave band, near-infrared band to analyze the plant health situation; Confirm whether plant receives gangue and pollute; And then the pollution range of definite gangue; Particularly, in the present embodiment, selected near infrared 1 wave band in the near-infrared band for use.
Selecting 8 band satellite data to compare with 4 common band satellite data, can be the red edge wave band of 705-745nm at wavelength, obtains the important information of vegetation growth.The health status of plant can very significantly be reflected on the leaf color usually, the leaf green disappearance, and xenthophylls, erythrophyll increase simultaneously.The red edge wave band is in excessive area, edge, visible region, the most ability of vegetation pigment absorption in this zone, and reflection seldom still can be very big to the haematochrome reflection.For the trough reflection characteristic, be very large value from very little value mutation, form the sudden change zone of reflectivity, Here it is red side effect.
Need to prove that contaminated plant all has its spectral signature on each wave band, therefore, by other color bands the time, also can analyze the spectral signature of polluting plant, the embodiment of the invention is only as a kind of preferably embodiment.
Fig. 7 is the process flow diagram according to the detection method of the gangue pollution range of the embodiment of the invention.
As shown in Figure 7, the detection method of this gangue pollution range comprises that following step S702 is to step S706.
Step S702 obtains the satellite remote-sensing image data of target area.
Image interpretation is accurately confirmed the position of bastard coal clitter via satellite, thereby confirms that the target area is to obtain this regional satellite remote-sensing image data.
Between step S702 and step S704, can also handle to obtain the satellite remote-sensing image data and just penetrate remote sensing and influence data, the process of the processing that the satellite remote-sensing image data are carried out is as shown in Figure 8, comprises that step S801 is to step S816.
Step S801 obtains WorldView-2 wave band binding data.
Step S802 obtains digital raster map (Digital Raster Graphic abbreviates DRG as) data.The DRG data are according to having topomap such as papery, film now after scanning and geometric correction and colour correction, being formed on the raster data collection that is consistent with topomap on content, geometric accuracy and the color.
Step S803 obtains digital elevation model (Digital Elevation Model abbreviates DEM as) data.DEM is the planimetric coordinates (X of regular grid point in the certain limit; Y) and the data set of elevation (Z); It mainly is a space distribution of describing regional landform shape, is to carry out data acquisition (comprising sampling and measurement) through level line or similar stereoscopic model, carries out interpolation of data then and forms.
Step S804 inlays in DRG data and dem data in the target area.
Step S805 corrects the reference mark and chooses the combine data that obtain of step S801 and two steps of step S805.
Step S806 judges whether correct result meets the demands, if not, return step S805; If, execution in step S807.
Step S807, orthorectify.Through on photo, choosing some ground control points, and utilize the dem data in this photo scope of originally having obtained, image is carried out the correction of inclination correction and height displacement simultaneously, corrected the image point displacement that causes because of topographic relief and sensor error.
Step S808 obtains panchromatic data orthography.
Step S809, to panchromatic data orthography through the row accuracy checking.
Step S810 judges whether correct precision meets the demands, if, execution in step S811; If, do not return step S805.
Step S811, Image registration.Make that pairing picture point has the process of identical planimetric coordinates on ground target and the image, carry out geometry correction.
Step S812, visual fusion.
Step S813, image is spared light, toning.
Step S814 judges whether the tone inspection is passed through, if, execution in step S815; If, do not return step S813.
Step S815, is cut apart image mosaic.
Step S816 obtains orthophotoquad.
Step S704 extracts the plant spectral information data in the satellite remote-sensing image data.
If obtained before the execution in step S704 and just penetrated remote sensing and influence data, then in this step, can also extract and just penetrate remote sensing and influence the plant spectral information data in the data.
In the present embodiment, extract red limit parameter that plant spectral information data can further extract plant spectrum to realize confirming to pollution range.Red limit (REP) is the fastest point of green plants leaf curve of spectrum rate of change between 670nm～780nm, also is the flex point of first derivative spectrum in this interval.The red limit parameter of plant spectrum mainly contains red limit slope and position, red limit.Pairing wavelength (the red limit of λ) when position, red limit refers to the plant curve of spectrum first order differential value reaches maximum in wavelength is 670nm～780nm scope, red limit slope refers to that the plant curve of spectrum is 670nm～780nm first order derivative maximal value at wavelength.Position, red limit and slope can obtain through Derivative Operation.Owing to the difference of chlorophyll content, respective change also can take place in the position on red limit and slope in growing process.Red limit slope is main relevant with plant coverage or leaf area index, and position, red limit is then main relevant with chlorophyll content in leaf blades, and when chlorophyll b content in the plant reduced, blue shift took place position, red limit.The slope at flex point place is a red limit slope, and red limit slope can be tried to achieve through the Guyot method.
The corresponding value in flex point place is the reflectivity of vegetation; The red limit of value R of the reflectivity that the flex point place is corresponding=(R670+R780)/2; Wherein the red limit of R is the calculated value at the reflectance value at main flex point place; R670, R700, R740 and R780 be utilize that red wave band, red edge wave band, near infrared 1 wave band in the World View-28 wave band data try to achieve 670,700,740 with the reflectance value at 780nm place.
Red limit=the 700+40. of red limit position λ [(the red limit of R-R700)/(R740-R700)].
The red limit parameter that can try to achieve plant spectrum through the red limit slope of trying to achieve and position, red limit.
Step S706 confirms the gangue pollution range of target area according to plant spectral information data.
Obtain the plant spectral signature information data of the satellite remote-sensing image data of the gangue Polluted area of storage in advance.
With the relevant information that is confirmed as Polluted area as a reference Value Data be stored in the system in advance; So after the satellite remote-sensing image data of obtaining the target area; Only need and will compare from the plant spectral information data and the reference value data of satellite remote-sensing image extracting data, if the two coupling, then explanation belongs to pollution range; Otherwise, do not belong to pollution range.Measure with this method, simple and efficient, satisfy the needs of measuring fast.
Here the plant spectral information data that contrast the target area and reference value data can be whether the wavelength of the position, red limit in wavelength and the reference zone plant spectral information data of the position, red limit in the plant spectral information data of contrast target area is consistent; If consistent wavelength, then the plant spectral information data of the plant spectral information data at this place and reference zone are mated.Position, red limit is the position that reflectivity is undergone mutation, if the position, red limit of target area is compared with reference zone, the direction long to wavelength moves; Be red limit " red shift ", explain that then the target area vegetation is healthy, if the position, red limit of target area is compared with reference zone; The direction short toward wavelength moves; Be red limit " blue shift ", explain that then the target area vegetation is sick, the ground collapse phenomenon takes place so can further infer the target area.
In the prior art, judge that land subsidence is through obtaining high-resolution data and known subsidence area data, set up subsidence area atural object interpret tag system through research, extracting subsidence area, target area range information in view of the above.The embodiment of the invention is compared with this prior art; Need not collect the data of known subsidence area; Need not set up subsidence area atural object interpret tag system through deep structure research; But directly utilize the contrast of target area and the position, red limit of selected reference zone plant spectral information, thereby confirm the zone that subsides.Simultaneously; The decipher of remote sensing images has complicacy, multi-solution and uncertainty; Change with the variation of area, so utilize this prior art to set up accurately comparatively difficulty of subsidence area atural object interpret tag system, the work of checking on the spot that needs are a large amount of with multiple factor such as period; And the embodiment of the invention is utilized the ripple of position, red limit to be longer than reference zone to compare, have advantages such as quick, accurate, convenient.
If in step S702, also obtained the red band spectrum information data of plant, red edge band spectrum information data and the near-infrared band spectral information data of the satellite remote-sensing image data of gangue Polluted area; Then in step S706, can also contrast the red band spectrum information data of plant, red edge band spectrum information data and the near-infrared band spectral information data of extraction, to confirm the gangue pollution range.
For example; Confirmed that when in advance the somewhere is the contaminated area; So the plant spectral signature information data of the satellite remote-sensing image data of the plant spectral signature information data of target area and gangue Polluted area is compared, can judge the pollution range in this zone.On the other hand; Also can choose uncontaminated zone in advance; Compared in target area and uncontaminated zone; To judge the pollution range in this zone, above dual mode can reach same effect, below with choose uncontaminated zone as a comparison the instance of object the embodiment of the invention is described in detail.
For whether the plant of confirming the target area receives the pollution of gangue, delineation is away from floral region as a comparison, the similar zone of the floristics beyond 15 kilometers of the bastard coal clitters.
Health plant spectrum has some characteristics, and for green plants, the spectral characteristic of blade and blade cell structure, moisture are relevant with the blade pigment content.The reflectance spectrum waveform of different plants is roughly the same, because it is all identical to produce the essential element of spectral reflectance, the key distinction is in the size of reflectivity.Health plant is all very low at the reflectivity of the blue light region of visible light section and red light district plant; Appearance is the absorption band of centre wavelength with 450nm, 650nm; Be called " red paddy " and " Lan Gu ", they are by the pigment in the leaf light to be selected to absorb to cause that the green Region luminance factor of visible light section is higher; Formation 550nm is that the reflectivity of centre wavelength is 10%～20% little reflection peak (green peak), makes the plant outward appearance be green; Reflectivity increases very rapidly between wavelength 680-750nm, and he is called as the red limit of plant in high spectral investigation, is that plant has diagnostic spectral signature, and the position height on red limit can there are differences because of the different upgrowth situations of plant with slope; From between 800～1300nm being the high zone of reflectivity of a relatively flat, this strong reflection to infrared light is that the eucaryotic cell structure by leaf causes.In addition, have three to absorb paddy at 1450nm, 1950nm, 2600nm～2700nm place, this is mainly formed by the cell absorption moisture of leaf.
The reflectance spectrum of plant leaf blade is relevant with physiological characteristic with leaf morphology; After plant is polluted; Variation in various degree will take place in the moisture of its inner structure, chlorophyll form and content and plant, and spectral reflection characteristic also changes thereupon, generally speaking; Pollute seriously more, this variation is just big more.Pollutant type and content to the synthetic influence of blade pigment much larger than influence to blade construction and moisture; Therefore; It is most important that the plant leaf surface reflectance spectrum of 400～900nm wave band changes; Also be to be rich in characteristics most, health plant differs greatly with the reflective spectral property of the plant leaf surface of being injured in this wave band.
The variation of plant spectral reflectance characteristic is that the reduction with chlorophyll content parallels, and difference is coerced factor, and the environmental factor that promptly plant is applied deleterious effect interosculates to the influence of plant spectral reflectance characteristic, all causes the blade pigment content to change.After receiving heavy metallic poison like plant; The phenomenon that the blade chlorisis generally occurs; One of reason be heavy metal ion by plant absorbing after; The part that is rich in SH in the peptide chain of several kinds of enzymes in the chlorophyll biosynthesis pathway is influenced by heavy metal ion, has changed their normal configuration, has suppressed the activity of enzyme and has hindered chlorophyllous synthetic; Former two is that effect by active oxygen radical under the heavy metal stress condition causes therefore, mainly is the OH of strong reactivity.The variation of blade pigment content causes the variation of plant spectral signature, and like visible light part and rising of near infrared partial reflectance or reduction, the plant curve of spectrum red limit flex point takes place red shift (moving to the long wave direction) or blue shift (moving to the shortwave direction) occur.
In order to contrast the position, red limit of health plant and sick plant, analyze the plant spectral reflectivity of the contrast areas close earlier with target area implants kind, calculate the corresponding wavelength in contrast position, the red limit of plant.
Utilize the red limit of aforesaid plant spectrum parameter model to extract the red limit parameter of plant pixel point in the image; Through with contrast plant red limit parameter comparison; Utilize coloud coding and multidimensional space data complex technique, and the orthography image of itself and target area is superimposed, the establishment red limit of plant spectrum, target area degree of variation figure; The affected zone of plant growing way in evaluating objects zone, the space distribution scope that delineation target area gangue pollutes.Detect with this method, in conjunction with the actual conditions of different regions, so testing result is more accurate.
Fig. 9 is the process flow diagram of the detection method of gangue pollution range according to the preferred embodiment of the invention, and as shown in Figure 9, this method may further comprise the steps S901 to step S919.
Step S901,8 sections wave bands that obtain the WorldView-2 satellite bundle data.
Step S902 obtains basic data, for example DRG data and dem data.
Step S903 carries out Digital Image Processing.Comprise and Flame Image Process comprised steps such as correction, coordinate setting.
Step S904 obtains orthophotoquad.
Step S905, the selected target zone.
In the present embodiment, superimposed through orthophotoquad and goaf, ore deposit side layout confirms that the target area is that minery and minery extend out 10 kilometers zone.
Step S906 carries out the analysis of the plant curve of spectrum.Utilize the Software tool evaluating objects zone vegetation and the contrast areas vegetation curve of spectrum, and calculate the wavelength of position, red limit, two zones.
Step S907 obtains position, red limit, this zone wavelength.
Step S908 selects the plant contrast areas.For whether the vegetation of confirming the target area receives the influence of land subsidence, delineation away from the similar zone of vegetation type beyond 15 kilometers in the minery as the vegetation contrast areas.
Step S909 carries out the analysis of the plant curve of spectrum.
Step S910 obtains position, red limit, this zone wavelength
Step S911, relatively position, the red limit wavelength in two zones.
Step S912 confirms the health condition of target area plant.
Step S913 is known plant health.
If the wavelength of the position, red limit of target area greater than position, the red limit wavelength of contrast areas red limit " red shift " phenomenon takes place promptly, then the comparison of target area vegetation growth situation is better than regional vegetation growth situation, and vegetation is healthy.
Step S914 confirms should the zone not comtaminated.
Step S915 knows that plant is sick.
Step S916 confirms should the zone contaminated.
If position, red limit, target area wavelength less than position, the red limit of contrast areas wavelength red limit " blue shift " phenomenon takes place promptly, then the comparison of contrast areas vegetation growth situation is poorer than regional vegetation growth situation, and vegetation is unhealthy.
Step S917 meets coloud coding and hyperspace.
Step S918 obtains the red limit of plant spectrum degree of variation figure.
Step S919, delineation gangue pollution range.
Can find out that from above embodiment adopt the satellite remote-sensing image data to measure, measuring process is quicker, accurate and objective, the less investment easy to implement and economic of this detection method is for mining area, coalfield green production provides strong technical support.
Need to prove; Can in computer system, carry out in the step shown in the process flow diagram of accompanying drawing such as a set of computer-executable instructions; And; Though logical order has been shown in process flow diagram, in some cases, can have carried out step shown or that describe with the order that is different from here.
Obviously, it is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the memory storage and carry out, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize by calculation element.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. the detection method of a gangue pollution range is characterized in that comprising:
Obtain the satellite remote-sensing image data of target area;
Extract the plant spectral information data in the said satellite remote-sensing image data; And
Confirm the gangue pollution range of said target area according to said plant spectral information data.
2. gangue pollution range detection method according to claim 1 is characterized in that, confirms that according to said plant spectral information data the gangue pollution range of said target area comprises:
Obtain the plant spectral signature information data of the satellite remote-sensing image data of the gangue Polluted area of storage in advance; And
Plant spectral information data that contrast is extracted and the plant spectral signature information data of storing in advance are to confirm the gangue pollution range.
3. gangue pollution range detection method according to claim 1 is characterized in that,
Before confirming the gangue pollution range according to said plant spectral information data, said method also comprises: the plant spectral signature information data of obtaining the satellite remote-sensing image data of gangue Polluted area; And
Confirm that according to said plant spectral information data the gangue pollution range comprises: plant spectral information data that contrast is extracted and the plant spectral signature information data of obtaining, to confirm the gangue pollution range.
4. according to claim 2 or 3 described gangue pollution range detection methods, it is characterized in that,
After obtaining the satellite remote-sensing image data of target area and before the plant spectral information data in extracting said satellite remote-sensing image data; Said method also comprises: said satellite remote-sensing image data are handled to obtain just penetrated remote sensing image data
The plant spectral information data of extracting in the said satellite remote-sensing image data comprise: extract said plant spectral information data of just penetrating in the remote sensing image data.
5. gangue pollution range detection method according to claim 4 is characterized in that, said satellite remote-sensing image data is handled to obtain just penetrated remote sensing image data and comprise:
Obtain the basic data data, wherein, said basic data data is the data relevant with the target area landform;
In conjunction with said basic data data said satellite remote-sensing image data are corrected processing;
The said satellite remote-sensing image data of handling through said correction are carried out image co-registration to be handled;
The said satellite remote-sensing image data of handling through said image co-registration are spared look to be handled; And
Just penetrate remote sensing image data to inlaying and cut apart to obtain through the said satellite remote-sensing image data of said even look processing.
6. gangue pollution range detection method according to claim 1 is characterized in that,
The plant spectral information data of extracting in the said satellite remote-sensing image data comprise: extract the red band spectrum information data of plant, red edge band spectrum information data and near-infrared band spectral information data in the said satellite remote-sensing image data,
Confirm that according to said plant spectral information data the gangue pollution range of said target area comprises: the gangue pollution range of confirming said target area according to the red band spectrum information data of said plant, red edge band spectrum information data and near-infrared band spectral information data.
7. the pick-up unit of a gangue pollution range is characterized in that comprising:
First acquiring unit is used to obtain the satellite remote-sensing image data of target area;
Extraction unit is used for extracting the plant spectral information data of said satellite remote-sensing image data; And
Confirm the unit, be used for confirming the gangue pollution range according to said plant spectral information data.
8. gangue pollution range pick-up unit according to claim 7 is characterized in that, said definite unit comprises:
First acquisition module is used to obtain the plant spectral signature information data of the satellite remote-sensing image data of the gangue Polluted area of storage in advance; And
First determination module is used to contrast the plant spectral information data of extraction and the plant spectral signature information data of storing in advance, to confirm the gangue pollution range.
9. gangue pollution range pick-up unit according to claim 7 is characterized in that,
Said device also comprises: second acquisition unit is used to obtain the plant spectral signature information data of the satellite remote-sensing image data of gangue Polluted area; And
Said definite unit comprises: second determination module is used to contrast the plant spectral information data of extraction and the plant spectral signature information data of obtaining, to confirm the gangue pollution range.
10. according to Claim 8 or 9 described gangue pollution range pick-up units, it is characterized in that,
Said device also comprises: the 3rd acquiring unit is used for said satellite remote-sensing image data are handled to obtain and just penetrates remote sensing image data; And
Said extraction unit comprises: first extraction module is used for extracting said plant spectral information data of just penetrating remote sensing image data.
11. gangue pollution range pick-up unit according to claim 10 is characterized in that, said the 3rd acquiring unit comprises:
Second acquisition module is used to obtain the basic data data, and wherein, said basic data data is the data relevant with the target area landform;
Correct module, be used to combine said basic data data that said satellite remote-sensing image data are corrected processing;
Fusion Module is used for that the said satellite remote-sensing image data of handling through said correction are carried out image co-registration and handles;
Even look module is used for that the said satellite remote-sensing image data of handling through said image co-registration are spared look and handles; And
The 3rd acquisition module is used for just penetrating remote sensing image data to inlaying and cut apart to obtain through the said satellite remote-sensing image data of said even look processing.
12. a data processing equipment is characterized in that, comprises each described gangue pollution range pick-up unit in the claim 7 to 11.
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