高分辨率衛(wèi)星遙感緒論課件

高分辨率衛(wèi)星遙感-緒論內(nèi)容概要高分辨率衛(wèi)星遙感基本概念課程主要內(nèi)容高分辨率衛(wèi)星遙感介紹高分辨率衛(wèi)星遙感應(yīng)用1、高分辨率衛(wèi)星遙感基本概念高分辨率衛(wèi)星遙感基本概念高分辨率地面分辨率光譜分辨率輻射分辨率時(shí)間分辨率高分辨率衛(wèi)星影像與中低分辨率衛(wèi)星影像比較地面分辨率比較光譜分辨率比較輻射分辨率比較時(shí)間分辨率比較不同地面分辨率的比較(Source:Landsat7ScienceDataUsersHandbook)圖象的光譜分辨率（SpectralResolution）SpectralreflectancecurvesSpectralsignatures輻射分辨率是指?jìng)鞲衅鹘邮懿ㄗV信號(hào)時(shí)，能分辨的最小輻射度差。在遙感圖像上表現(xiàn)為每一像元的輻射量化級(jí)。某個(gè)波段遙感圖像的總信息量與空間分辨率（以像元數(shù)n表示）、輻射分辨率（以灰度量化級(jí)D表示）有關(guān)。在多波段遙感中，遙感圖像總信息量還取決于波段數(shù)k。輻射分辨率（RadiometricResolution）Referstothesensitivityofthesensortoincomingradiance.Howmuchchangeinradiancemusttherebeforeachangeinrecordedbrightnessvaluetakesplace.Thissensitivitytodifferentsignallevelswilldeterminethetotalnumberofvaluesthatcanbegeneratedbythesensor26=(0-63)6428=(0-255)256210=(0-1023)1024Examples:GOESImager–10bitLandsat7ETM+-8bitLandsat7ScienceDataUsersHandbook2、課程主要內(nèi)容課程主要內(nèi)容緒論（2學(xué)時(shí)）成像模型（2學(xué)時(shí)）幾何校正模型（2學(xué)時(shí)）高分辨率衛(wèi)星遙感影像預(yù)處理（融合、鑲嵌、增強(qiáng)）（2學(xué)時(shí)）近似核線理論和立體模型（2學(xué)時(shí)）線陣CCD衛(wèi)星影像立體匹配（2學(xué)時(shí)）衛(wèi)星影像立體測(cè)圖系統(tǒng)（2學(xué)時(shí)）信息提取技術(shù)（4學(xué)時(shí)）道路提取河流提取建筑物提取遙感影像數(shù)據(jù)管理（2學(xué)時(shí)）高分辨率衛(wèi)星影像并行處理概論（2學(xué)時(shí)）高分辨率衛(wèi)星影像應(yīng)用介紹（2學(xué)時(shí)）考試方式實(shí)習(xí)報(bào)告–40%學(xué)習(xí)報(bào)告--40%考勤–20%主要期刊遙感學(xué)報(bào)遙感技術(shù)與應(yīng)用中國(guó)圖像圖形學(xué)報(bào)遙感信息RemoteSensingofEnvironmentIEEETransactionsonGeoscienceandRemoteSensingPhotogrammetricEngineeringandRemoteSensingInternationalJournalofRemoteSensing網(wǎng)站資源--美國(guó)NASA遙感教學(xué)網(wǎng)站www.ccrs.nrcan.gc.ca/ccrs/learn/learn_e.html--加拿大遙感中心教學(xué)網(wǎng)站--中國(guó)遙感衛(wèi)星地面接收站--satelliteImagingCorporation--北京視寶衛(wèi)星圖像有限公司--erdasIMAGINE圖像處理軟件--envi圖像處理軟件--er-mapper圖像處理軟件--idrisi圖像處理軟件www.pci.on.ca--pciGeomatics圖像處理軟件3、高分辨率衛(wèi)星遙感系統(tǒng)介紹高分辨率衛(wèi)星遙感系統(tǒng)介紹SPOT5IKONOSQUICKBIRDORBVIEW-3EO-11.陸地衛(wèi)星系列--SPOT衛(wèi)星86878889909192939495969798992000010203040506070809

SPOT5

SPOT4衛(wèi)星運(yùn)行服務(wù)中斷發(fā)射日或重新開(kāi)始服務(wù)日

SPOT1

SPOT2SPOT3

TheFrenchearthobservationsatellitesSPOT-1,2,3and4werelaunchedintoasun-synchronoussub-recurrentorbitatanaltitudeofabout822kmin1986,1990,1993and1998respectively.SPOTcanobservenotonlytheearth'ssurfacejustunderneaththesatellitebutalsoslantwisetothesatellite'spathbychangingthescandirectionofthesensors.Itcanshortenthetimeperiodforobservingaspecifiedarearepetitively.SPOT-1,-2and-3areequippedwithCCDsensorscalledHighResolutionVisibleImagingSystem(HRV).SPOT-4isequippedwithtwoCCDsensors,HRV'ssuccessor,HighResolutionVisibleandInfrared(HRVIR)andVegetation(VGT)*1.TheobservationbandsofHRVIRarebasicallysameasHRVandthenewlyaddedband4,shortwaveinfrared(SWIR:1.58to1.75mm).VGTobserveswideareawithaswathof2,250km.

OverviewObservationBandVisible:2bands

Near-infrared:1band

Panchromatic-Band:1bandSpatialResolutionMultispectoral-Band:20m

Panchromatic-Band:10mSwathWidthAbout60kmHRVIRScanningImage

Spot立體像對(duì)

軌道旁向傾斜，像對(duì)最短時(shí)間差為0.5小時(shí)自動(dòng)相關(guān)生成DEM，高程精度為7-11米SPOT的傾斜觀測(cè)功能重復(fù)觀測(cè)能力單星：2－3天/次，多星：1天/次20°20°600KmmaxiHRS120Km立體成像裝置HRSSpot-5基本產(chǎn)品10米多光譜5米全色2.5米全色+Spot-5增值產(chǎn)品10米多光譜5米PanSpot5同軌立體像對(duì)Spot5HRS立體像對(duì)生成的10米高程精度DEM2.陸地衛(wèi)星系列IKONOSIKONOS:1米全色4米多光譜1米全色-銳化軌道:680km,太陽(yáng)同步,98.2o傾斜IKONOS光譜波段紅波段.63-.69microns(4m)近紅外.76-.90microns(4m)藍(lán)波段.45-.52microns(4m)綠波段.52-.60microns(4m)全色.45-.90微米的圖像(1m）SinceitslaunchinSeptember1999,SpaceImaging'sIKONOSearthimagingsatellitehasprovidedareliablestreamofimagedatathathasbecomethestandardforcommercialhigh-resolutionsatellitedataproducts.TheIKONOSsatelliteistheworld'sfirstcommercialsatellite

tocollectblack-and-whiteimageswith1-meterresolutionandmultispectralimagerywith4-meterresolution.SensorCharacteristics

TheIKONOSsatelliteweighsabout1600pounds.ItorbitstheEarthevery98minutesatanaltitudeofapproximately680kilometersor423miles.IKONOSwaslaunchedintoasun-synchronousorbit,passingagivenlongitudeataboutthesamelocaltime(10:30A.M.)daily.IKONOScanproduce1-meterimageryofthesamegeographyevery3days.SpectralRange

1-meterblack-and-white(panchromatic)

0.45-0.90mm.4-metermultispectralBlue:0.45-0.52mm

Green:0.51-0.60mm

Red:0.63-0.70mm

NearIR:0.76-0.85mmOverviewof

IKONOSThisone-meterresolutionsatelliteimageofManhattan,NewYorkwascollectedat11:43a.m.EDTonSept.12,2001bySpaceImaging'sIKONOSsatellite.Theimageshowsanareaofwhitedustandsmokeatthelocationwherethe1,350-foottowersoftheWorldTradeCenteroncestood.SinceallaircraftweregroundedfollowingtheattackonAmericait'stheonlyhigh-resolution'viewfromabove'ofthefireanddestructionofthetwintowersThisone-meterresolution,colorsatelliteimageoftheLingshuimilitaryairfieldonthesoutheasterncoastofHainanIslandintheSouthChinaSea,wascollectedat10:32a.m.localtimeonApril10,2001bySpaceImaging'sIKONOSsatellite.AUSNavyplanemadeanemergencylandingthereafteramid-aircollisionwithaChinesefighter.Thenavyaircraftisclearlyvisibleandparkedonthetaxiwayadjacenttothenorthendoftherunway(northisup).3.陸地衛(wèi)星系列--QuickBird埃及金字塔北京故宮4.OrbView-3

DevelopedbythenORBIMAGEnowGeoEye,launchedin2003

-4multispectralbands(B,G,R,IR)with4mresolution

-apanbandwith1mresolution

-8kmswath

-upto45oviewingangle/news/pressroom/hurricanemaps.html#hurmapsBiloxiCoast–BeforeHurricaneKatrina,April12,2005.BiloxiCoast–AfterHurricaneKatrina,August31,2005.HurricaneKatrinaAftermath,ORBIMAGE.ThebreakthroughoftheleveesinNewOrleans,alongSurekoteRoadandoppositetotheGalvezSt.Wharf. /InitialimagerycapturedduringthefirstpassofORBIMAGE’shighresolutionOrbview-3satelliteoverDowntownNewOrleansclearlyshowsbroadareafloodingandwaterencroachmentthroughoutbothcommercialandresidentialareas./CollectiondateforOV-2image3:08/29/05

/5.HyperspectralSatelliteSystems

EO-1

-242bands -0.36mm–2.6mm.sg/~research/tutorial/eo1.htm/miscPages/home.htmlPearlHarbor/miscPages/home.html4、高分辨率衛(wèi)星遙感應(yīng)用NASA的對(duì)地觀測(cè)系統(tǒng)NASA的下一代對(duì)地觀測(cè)任務(wù)Thesizeofacellwecallimageresolution,dependingon…Suchas1m,30m,1km,or4km遙感發(fā)展趨勢(shì)高空間分辨率IKONOS1999年發(fā)射（4m多光譜和1m全色波段）QuickBird2001年發(fā)射（2.44m多光譜和1m全色波段）高光譜分辨率AVIRIS10nm、20m、