Digital马赛克
马赛克 时间:2021-02-21 阅读:()
PolarimetricMosaickingofOrtho-RectifiedALOS/PalsarDataY.
Rauste,A.
Lnnqvist,H.
Ahola,M.
Molinier,andT.
HmeALOSPISymposium2008,Rhodes,Greece3-7November2008VTTTECHNICALRESEARCHCENTREOFFINLAND2IntroductionOneofthebenefitsofEarthObservationistheabilitytomaplargeareasatatimePolarimetricALOS/Palsarscenesarelimitedinsize(29kmswath)Bymosaickingseveralscenestogether,awideareacouldbemappedinasingleanalysisstepObjective:ToproduceamosaicofseveralpolarimetricALOS/Palsarscenesinsuchaformthatpolarimetricprocessingmethodslikepolarizationsynthesisandvariousdecompositiontechniquescanbeappliedtothemosaicproduct.
VTTTECHNICALRESEARCHCENTREOFFINLAND3StudySiteFirstplantousetheforestrystudysiteofHeinavesi(62o17'N,28o26'E)andaugmentthedatasetbyordering3additionalscenestoforma4-scenemosaic.
PolarimetricALOS/PalsarscenesdidnotoverlapatthelatitudeoftheHeinavesisite.
Newsite,basedonavailabilityofpolarimetricALOS/Palsardataandtheoverlapbetweenneighboringscenes.
InFinnishLapland,centre68o30'N,27o30'E.
FromlakeInaritoLokkareservoir,includingthetownofIvaloandIvaloairportwithitsmeteorologicalstation.
VTTTECHNICALRESEARCHCENTREOFFINLAND4ALOS/PalsarDataFourscenes:2fromorbit6327(2.
4.
2007,theeasternstrip)and2fromorbit6575(19.
4.
2007,thewesternstrip)Snow-meltingseasoninLaplandThetemperatureduringimageacquisitionwas-2oon2.
4.
2007and+3oon19.
4.
2007=>thesnowisdrier(withathinicecrust)intheeasternstripVTTTECHNICALRESEARCHCENTREOFFINLAND5DigitalElevationModelTheShuttleTopographicMappingmissionDEM(SRTMDEM)doesnotextendthisfarnorthDEMwaspurchasedfromtheNationalLandSurveyofFinlandTheDEM(25-mpixelspacing)hasbeenmadestartingwiththecontourlinesfromtopographicmapsat1:20000Elevationaccuracybetterthan2m110kmby60kminareaVTTTECHNICALRESEARCHCENTREOFFINLAND6PalsarGeo-codingAlgorithmEquationsbyCurlander(1982):Least-squaresformulation:Solutionfrom:Curlander,J.
1982.
LocationofspaceborneSARimagery,IEEETransactionsonGeoscienceandRemoteSensing,Vol.
GE-20,No.
3,July1982,p.
359-364.
VTTTECHNICALRESEARCHCENTREOFFINLAND7Ortho-Rectification-SoftwareFrameworkforExperimentation(Simplified)JAXApol.
prod.
L1.
1yrpalsarpolcal2s2yrpalsarpol2s2S2filesS2filesS2filesS2filesyrs2tocohavgyrortho5_grdT3filesT3filesT3filesT3filesT3filesT3filesT3filesT3filesT3filesT3filesT3filesT3filesT3filesT3filesT3filesT3filesT3filesRectifiedT3filesyrpalsargrid.
gdcfileDEMSorDblpol.
L1.
1yrpalsarsinglepolextractS2fileyrdetectfloat2i16yrortho4_grd16-bitfileRectified16-bitfileyrt3toamplVTTTECHNICALRESEARCHCENTREOFFINLAND8RadiometricCorrectioninStokesDomainGammacorrection:Pcorrected=(Pin-Pnoise)An/Aprojected+PnoiseAn=nominalprojectedpixelarea,Aprojected=actual,DEM-computedprojectedpixelareaAppliedtoStokesmatrixdataF(16elements,9independentelements):Fcorrected=(Fin-Fnoise)An/Aprojected+FnoiseAprojectedcomputedbya"pixel-counting"algorithmVTTTECHNICALRESEARCHCENTREOFFINLAND9PixelCountingAlgorithminRadiometricCorrectionThecentreofoutputpixelcentredwithaDEMelementGoingtowardsthesub-satellitepointinDEM,findthefirstDEMelementthatisoutsidetheslantrangeresolutionFindtheintersectionbetweenDEMsurfaceandrangeresolutionRepeatgoingawayfromthesub-satellitepointComputetheverticaldimensionxoftheprojectedpixelareaVTTTECHNICALRESEARCHCENTREOFFINLAND10ImageGeometryinMosaicking77tiepointsbetweenscenesbyimagecorrelation13GCPsbetweenscenesandmapsBlockadjustmentstatistics:RMSE/tiepoints:8.
9/9.
5m(N/E),maximum21.
9/31.
2mRMSE/GCPs:13.
6/19.
8m(N/E),maximum27.
5/38.
2mVTTTECHNICALRESEARCHCENTREOFFINLAND11OutlookforRadiometricCalibrationbetweenScenesOverlappingarea19April2007(left,+3o)and2April2007(right,-2o)AdifferenceinbackscatterlevelCleardifferencesindominatingscatteringmechanisms,especiallyinopenareasVTTTECHNICALRESEARCHCENTREOFFINLAND12VisualisationofPolarimetricMosaicMissingpixelsfilledwiththeaverageofthefirstpolarimetricscene(Fukuoka)Left:PolsarProPaulidecompositionRight:PaulidecompositionoutsidePolSARproMaskingofmissingpixelsQuantityshown:amplitude,notpowerofHH-VV,HV,andHH+VVHistogramclippingpercolour:0…98%VTTTECHNICALRESEARCHCENTREOFFINLAND13VisualisationofPolarimetricMosaic2MissingpixelsfilledwiththeaverageofthemosaicLeft:PolsarProPaulidecompositionRight:PaulidecompositionoutsidePolSARproMaskingofmissingpixelsQuantityshown:amplitude,notpowerofHH-VV,HV,andHH+VVHistogramclippingpercolour:0…98%VTTTECHNICALRESEARCHCENTREOFFINLAND14APerspectiveviewofthePolarimetricMosaicProducedwithGrassGISRed=HH+VV,Green=HV,Blue=HH+VVVTTTECHNICALRESEARCHCENTREOFFINLAND15APerspectiveviewofaLandCoverMapMountaintopsareopen/mineralLandcovermapcourtesyofFinnishEnvironmentInstituteSYKEVTTTECHNICALRESEARCHCENTREOFFINLAND16ConclusionsTechniquesexistforgeometricprocessingofpolarimetricALOS/Palsardataintohomogeneousmosaics.
Imagingduringsnow-meltingperiodcancausesignificantdifferencesbetweenneighbouringscenes.
Summer-timeimageacquisitioninaforestedregionisrequiredforafutureevaluationofcapabilitiesofpolarimetricALOS/Palsarmosaics.
VTTTECHNICALRESEARCHCENTREOFFINLAND17AcknowledgementsJAXAandESAforprovidingALOS/PalsardataintheESA/ADENprojectESA-3713SYKE(FinnishEnvironmentInstitute)forprovidingCORINEland-coverdataTEKES(FinnishFundingAgencyforTechnologyandInnovation)forfundingprojectNewSAR
Rauste,A.
Lnnqvist,H.
Ahola,M.
Molinier,andT.
HmeALOSPISymposium2008,Rhodes,Greece3-7November2008VTTTECHNICALRESEARCHCENTREOFFINLAND2IntroductionOneofthebenefitsofEarthObservationistheabilitytomaplargeareasatatimePolarimetricALOS/Palsarscenesarelimitedinsize(29kmswath)Bymosaickingseveralscenestogether,awideareacouldbemappedinasingleanalysisstepObjective:ToproduceamosaicofseveralpolarimetricALOS/Palsarscenesinsuchaformthatpolarimetricprocessingmethodslikepolarizationsynthesisandvariousdecompositiontechniquescanbeappliedtothemosaicproduct.
VTTTECHNICALRESEARCHCENTREOFFINLAND3StudySiteFirstplantousetheforestrystudysiteofHeinavesi(62o17'N,28o26'E)andaugmentthedatasetbyordering3additionalscenestoforma4-scenemosaic.
PolarimetricALOS/PalsarscenesdidnotoverlapatthelatitudeoftheHeinavesisite.
Newsite,basedonavailabilityofpolarimetricALOS/Palsardataandtheoverlapbetweenneighboringscenes.
InFinnishLapland,centre68o30'N,27o30'E.
FromlakeInaritoLokkareservoir,includingthetownofIvaloandIvaloairportwithitsmeteorologicalstation.
VTTTECHNICALRESEARCHCENTREOFFINLAND4ALOS/PalsarDataFourscenes:2fromorbit6327(2.
4.
2007,theeasternstrip)and2fromorbit6575(19.
4.
2007,thewesternstrip)Snow-meltingseasoninLaplandThetemperatureduringimageacquisitionwas-2oon2.
4.
2007and+3oon19.
4.
2007=>thesnowisdrier(withathinicecrust)intheeasternstripVTTTECHNICALRESEARCHCENTREOFFINLAND5DigitalElevationModelTheShuttleTopographicMappingmissionDEM(SRTMDEM)doesnotextendthisfarnorthDEMwaspurchasedfromtheNationalLandSurveyofFinlandTheDEM(25-mpixelspacing)hasbeenmadestartingwiththecontourlinesfromtopographicmapsat1:20000Elevationaccuracybetterthan2m110kmby60kminareaVTTTECHNICALRESEARCHCENTREOFFINLAND6PalsarGeo-codingAlgorithmEquationsbyCurlander(1982):Least-squaresformulation:Solutionfrom:Curlander,J.
1982.
LocationofspaceborneSARimagery,IEEETransactionsonGeoscienceandRemoteSensing,Vol.
GE-20,No.
3,July1982,p.
359-364.
VTTTECHNICALRESEARCHCENTREOFFINLAND7Ortho-Rectification-SoftwareFrameworkforExperimentation(Simplified)JAXApol.
prod.
L1.
1yrpalsarpolcal2s2yrpalsarpol2s2S2filesS2filesS2filesS2filesyrs2tocohavgyrortho5_grdT3filesT3filesT3filesT3filesT3filesT3filesT3filesT3filesT3filesT3filesT3filesT3filesT3filesT3filesT3filesT3filesT3filesRectifiedT3filesyrpalsargrid.
gdcfileDEMSorDblpol.
L1.
1yrpalsarsinglepolextractS2fileyrdetectfloat2i16yrortho4_grd16-bitfileRectified16-bitfileyrt3toamplVTTTECHNICALRESEARCHCENTREOFFINLAND8RadiometricCorrectioninStokesDomainGammacorrection:Pcorrected=(Pin-Pnoise)An/Aprojected+PnoiseAn=nominalprojectedpixelarea,Aprojected=actual,DEM-computedprojectedpixelareaAppliedtoStokesmatrixdataF(16elements,9independentelements):Fcorrected=(Fin-Fnoise)An/Aprojected+FnoiseAprojectedcomputedbya"pixel-counting"algorithmVTTTECHNICALRESEARCHCENTREOFFINLAND9PixelCountingAlgorithminRadiometricCorrectionThecentreofoutputpixelcentredwithaDEMelementGoingtowardsthesub-satellitepointinDEM,findthefirstDEMelementthatisoutsidetheslantrangeresolutionFindtheintersectionbetweenDEMsurfaceandrangeresolutionRepeatgoingawayfromthesub-satellitepointComputetheverticaldimensionxoftheprojectedpixelareaVTTTECHNICALRESEARCHCENTREOFFINLAND10ImageGeometryinMosaicking77tiepointsbetweenscenesbyimagecorrelation13GCPsbetweenscenesandmapsBlockadjustmentstatistics:RMSE/tiepoints:8.
9/9.
5m(N/E),maximum21.
9/31.
2mRMSE/GCPs:13.
6/19.
8m(N/E),maximum27.
5/38.
2mVTTTECHNICALRESEARCHCENTREOFFINLAND11OutlookforRadiometricCalibrationbetweenScenesOverlappingarea19April2007(left,+3o)and2April2007(right,-2o)AdifferenceinbackscatterlevelCleardifferencesindominatingscatteringmechanisms,especiallyinopenareasVTTTECHNICALRESEARCHCENTREOFFINLAND12VisualisationofPolarimetricMosaicMissingpixelsfilledwiththeaverageofthefirstpolarimetricscene(Fukuoka)Left:PolsarProPaulidecompositionRight:PaulidecompositionoutsidePolSARproMaskingofmissingpixelsQuantityshown:amplitude,notpowerofHH-VV,HV,andHH+VVHistogramclippingpercolour:0…98%VTTTECHNICALRESEARCHCENTREOFFINLAND13VisualisationofPolarimetricMosaic2MissingpixelsfilledwiththeaverageofthemosaicLeft:PolsarProPaulidecompositionRight:PaulidecompositionoutsidePolSARproMaskingofmissingpixelsQuantityshown:amplitude,notpowerofHH-VV,HV,andHH+VVHistogramclippingpercolour:0…98%VTTTECHNICALRESEARCHCENTREOFFINLAND14APerspectiveviewofthePolarimetricMosaicProducedwithGrassGISRed=HH+VV,Green=HV,Blue=HH+VVVTTTECHNICALRESEARCHCENTREOFFINLAND15APerspectiveviewofaLandCoverMapMountaintopsareopen/mineralLandcovermapcourtesyofFinnishEnvironmentInstituteSYKEVTTTECHNICALRESEARCHCENTREOFFINLAND16ConclusionsTechniquesexistforgeometricprocessingofpolarimetricALOS/Palsardataintohomogeneousmosaics.
Imagingduringsnow-meltingperiodcancausesignificantdifferencesbetweenneighbouringscenes.
Summer-timeimageacquisitioninaforestedregionisrequiredforafutureevaluationofcapabilitiesofpolarimetricALOS/Palsarmosaics.
VTTTECHNICALRESEARCHCENTREOFFINLAND17AcknowledgementsJAXAandESAforprovidingALOS/PalsardataintheESA/ADENprojectESA-3713SYKE(FinnishEnvironmentInstitute)forprovidingCORINEland-coverdataTEKES(FinnishFundingAgencyforTechnologyandInnovation)forfundingprojectNewSAR
- Digital马赛克相关文档
- 补偿马赛克
- 多彩防霉瓷砖填缝剂
- Objectives马赛克
- 防潮马赛克
- 材料马赛克
- 汽车核心工具自我评估测试操作说明
pacificrack：VPS降价，SSD价格下降
之前几个月由于CHIA挖矿导致全球固态硬盘的价格疯涨，如今硬盘挖矿基本上已死，硬盘的价格基本上恢复到常规价位，所以，pacificrack决定对全系Cloud server进行价格调整，降幅较大，“如果您是老用户，请通过续费管理或升级套餐，获取同步到最新的定价”。官方网站：https://pacificrack.com支持PayPal、支付宝等方式付款VPS特征：基于KVM虚拟，纯SSD raid...
DiyVM：香港VPS五折月付50元起,2核/2G内存/50G硬盘/2M带宽/CN2线路
diyvm怎么样?diyvm这是一家低调国人VPS主机商，成立于2009年，提供的产品包括VPS主机和独立服务器租用等，数据中心包括香港沙田、美国洛杉矶、日本大阪等，VPS主机基于XEN架构，均为国内直连线路，主机支持异地备份与自定义镜像，可提供内网IP。最近，DiyVM商家对香港机房VPS提供5折优惠码，最低2GB内存起优惠后仅需50元/月。点击进入：diyvm官方网站地址DiyVM香港机房CN...
易探云香港vps主机价格多少钱?香港云服务器主机租用价格
易探云香港vps主机价格多少钱?香港vps主机租用费用大体上是由配置决定的，我们选择香港vps主机租用最大的优势是免备案vps。但是，每家服务商的机房、配置、定价也不同。我们以最基础配置为标准，综合比对各大香港vps主机供应商的价格，即可选到高性能、价格适中的香港vps主机。通常1核CPU、1G内存、2Mbps独享带宽，价格在30元-120元/月。不过，易探云香港vps主机推出四个机房的优惠活动，...
马赛克为你推荐
-
明星论坛怎么建免费的论坛网站？主页改不了浏览器主页改不了支付宝查询余额怎样查支付宝余额bluestacksbluestacks怎么用？公章制作如何制作公章pw美团网电话是什么pw伪静态如何设置伪静态规则安卓应用平台现在android平台的手机都有哪些？网站优化方案网站优化方案如何写？域名库想自己买一个域名，然后自己做一个网站，挂上去。请问基本流程是什么样的？