Version du 2 janvier 2017 à 14:07

Tutorials index

Description

This tutorial will present the method to process historical aerial images into DEM and Orthoimages. With this kind of products, you can monitor changes in an arean (urbanization, landscape changes, etc...).

The USGS NAPP program offers a large amount of free scanned images over the continental US (mostly), often with calibration data, though the Earth Explorer If you are looking for a special area in France, you can use the Geoportail (IGN) to download your own images and process it.

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Presentation

Tutorial

Preamble

MicMac use EXIF metadat in order to determine image format and focal length. However, historical images doesn't have such metadata, so we have first to create a file MicMac-LocalChantierDescripteur.xml like this :

Internal Orientation

mm3d SaisieAppuisInitQT "image.tif" NONE id_appuis.txt image.tif.xml 

mm3d Kugelhupf 1987.*tif Ori-InterneScan/image.tif.xml SearchIncertitude= ??

mm3d OriConvert OriTxtInFile GPS_sommets.txt Sommets NameCple=Couples.xml

mm3d Tapioca File Couples.xml 2000

mm3d SaisieMasqQT "image.tif"

mm3d HomolFilterMasq 1987.*tif GlobalMasq=filtre.tif

mm3d Tapas RadialBasic 1987.*tif InCal=CalibInit Out=Relative SH=HomolMasqFiltered LibFoc=0

mm3d AperiCloud 1987.*tif Relative SH=HomolMasqFiltered

meshlab AperiCloud_Relative.ply

mm3d SaisieAppuisInitQT 1987_FR4053_07.*tif Relative id_appuis.txt MesuresInit.xml
mm3d SaisieAppuisInitQT 1987_FR4053_08.*tif Relative id_appuis.txt MesuresInit.xml
mm3d SaisieAppuisInitQT 1987_FR4053_09.*tif Relative id_appuis.txt MesuresInit.xml

mm3d GCPBascule 1987.*tif Relative TerrainInit Mesures_appuis.xml  MesuresInit-S2D.xml

mm3d SaisieAppuisPredicQT 1987.*tif TerrainInit Mesures_appuis.xml MesuresFinales.xml

mm3d GCPBascule 1987.*tif TerrainInit TerrainBrut Mesures_appuis.xml  MesuresFinales-S2D.xml

mm3d Campari 1987.*tif TerrainBrut TerrainFinal GCP=[Mesures_appuis.xml,0.1,MesuresFinales-S2D.xml,0.5]<pre>
<pre>mm3d AperiCloud 1987.*tif TerrainFinal SH=HomolMasqFiltered

meshlab AperiCloud_TerrainFinal.ply

mm3d Tarama 1987.*tif TerrainFinal
mm3d SaisieMasqQT TA/TA_LeChantirer.tif

mm3d Malt Ortho 1987.*tif TerrainFinal MasqImGlob=filtre.tif NbVI=2 ZoomF=1 ResolTerrain=0.5 DefCor=0 CostTrans=4

mm3d GrShade  Z_Num8_DeZoom2_STD-MALT.tif ModeOmbre=IgnE Out=ModeleOmbre.tif Mask=MEC-Malt/AutoMask_STD-MALT_Num_7.tif

mm3d to8Bits MEC-Malt/Z_Num8_DeZoom2_STD-MALT.tif Out=hypso.tif Coul=1 Dyn=3 Mask=MEC-Malt/AutoMask_STD-MALT_Num_7.tif

mm3d Tawny Ortho-MEC-Malt Out=Mosaique.tif