Added runInterferogram.py
vbrancat
parent
31da6a36f4
commit
4631aff062
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@ -1,14 +1,78 @@
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#
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# Author: Heresh Fattahi, 2017
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#
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# Modified by V. Brancato (10.2019)
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# (Included flattening when rubbersheeting in range is turned on
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import isceobj
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import logging
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from components.stdproc.stdproc import crossmul
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from iscesys.ImageUtil.ImageUtil import ImageUtil as IU
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import os
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import gdal
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import numpy as np
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logger = logging.getLogger('isce.insar.runInterferogram')
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# Added by V. Brancato 10.09.2019
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def write_xml(fileName,width,length,bands,dataType,scheme):
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img = isceobj.createImage()
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img.setFilename(fileName)
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img.setWidth(width)
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img.setLength(length)
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img.setAccessMode('READ')
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img.bands = bands
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img.dataType = dataType
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img.scheme = scheme
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img.renderHdr()
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img.renderVRT()
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return None
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def compute_FlatEarth(self,width,length):
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from imageMath import IML
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import logging
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# If rubbersheeting has been performed add back the range sheet offsets
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info = self._insar.loadProduct(self._insar.slaveSlcCropProduct)
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radarWavelength = info.getInstrument().getRadarWavelength()
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rangePixelSize = info.getInstrument().getRangePixelSize()
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fact = 4 * np.pi* rangePixelSize / radarWavelength
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cJ = np.complex64(-1j)
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# Open the range sheet offset
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rngOff = os.path.join(self.insar.offsetsDirname, self.insar.rangeOffsetFilename )
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print(rngOff)
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if os.path.exists(rngOff):
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rng2 = np.memmap(rngOff, dtype=np.float64, mode='r', shape=(length,width))
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else:
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print('No range offsets provided')
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rng2 = np.zeros((length,width))
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# Open the interferogram
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ifgFilename= os.path.join(self.insar.ifgDirname, self.insar.ifgFilename)
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ds = gdal.Open(ifgFilename+'.full',gdal.GA_ReadOnly)
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intf = ds.GetRasterBand(1).ReadAsArray()
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ds = None
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intf *= np.exp(cJ*fact*rng2)
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del rng2
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# Write the interferogram
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intf.tofile(ifgFilename+'.full')
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write_xml(ifgFilename+'.full',width,length,1,"CFLOAT","BIL")
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intf=None
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return
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def multilook(infile, outname=None, alks=5, rlks=15):
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'''
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Take looks.
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@ -66,8 +130,8 @@ def computeCoherence(slc1name, slc2name, corname, virtual=True):
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slc2.finalizeImage()
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return
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def generateIgram(imageSlc1, imageSlc2, resampName, azLooks, rgLooks):
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# Modified by V. Brancato on 10.09.2019 (added self)
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def generateIgram(self,imageSlc1, imageSlc2, resampName, azLooks, rgLooks):
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objSlc1 = isceobj.createSlcImage()
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IU.copyAttributes(imageSlc1, objSlc1)
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objSlc1.setAccessMode('read')
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@ -79,8 +143,13 @@ def generateIgram(imageSlc1, imageSlc2, resampName, azLooks, rgLooks):
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objSlc2.createImage()
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slcWidth = imageSlc1.getWidth()
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intWidth = int(slcWidth / rgLooks)
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if not self.doRubbersheetingRange:
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intWidth = int(slcWidth/rgLooks) # Modified by V. Brancato intWidth = int(slcWidth / rgLooks)
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else:
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intWidth = int(slcWidth)
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lines = min(imageSlc1.getLength(), imageSlc2.getLength())
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if '.flat' in resampName:
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@ -93,7 +162,7 @@ def generateIgram(imageSlc1, imageSlc2, resampName, azLooks, rgLooks):
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resampInt = resampName
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objInt = isceobj.createIntImage()
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objInt.setFilename(resampInt)
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objInt.setFilename(resampInt+'.full')
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objInt.setWidth(intWidth)
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imageInt = isceobj.createIntImage()
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IU.copyAttributes(objInt, imageInt)
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@ -101,21 +170,41 @@ def generateIgram(imageSlc1, imageSlc2, resampName, azLooks, rgLooks):
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objInt.createImage()
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objAmp = isceobj.createAmpImage()
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objAmp.setFilename(resampAmp)
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objAmp.setFilename(resampAmp+'.full')
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objAmp.setWidth(intWidth)
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imageAmp = isceobj.createAmpImage()
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IU.copyAttributes(objAmp, imageAmp)
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objAmp.setAccessMode('write')
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objAmp.createImage()
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if not self.doRubbersheetingRange:
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print('Rubbersheeting in range is off, interferogram is already flattened')
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objCrossmul = crossmul.createcrossmul()
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objCrossmul.width = slcWidth
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objCrossmul.length = lines
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objCrossmul.LooksDown = azLooks
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objCrossmul.LooksAcross = rgLooks
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objCrossmul = crossmul.createcrossmul()
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objCrossmul.width = slcWidth
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objCrossmul.length = lines
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objCrossmul.LooksDown = azLooks
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objCrossmul.LooksAcross = rgLooks
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objCrossmul.crossmul(objSlc1, objSlc2, objInt, objAmp)
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objCrossmul.crossmul(objSlc1, objSlc2, objInt, objAmp)
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else:
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# Modified by V. Brancato 10.09.2019 (added option to add Range Rubber sheet Flat-earth back)
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print('Rubbersheeting in range is on, removing flat-Earth phase')
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objCrossmul = crossmul.createcrossmul()
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objCrossmul.width = slcWidth
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objCrossmul.length = lines
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objCrossmul.LooksDown = 1
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objCrossmul.LooksAcross = 1
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objCrossmul.crossmul(objSlc1, objSlc2, objInt, objAmp)
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# Remove Flat-Earth component
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compute_FlatEarth(self,intWidth,lines)
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# Perform Multilook
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multilook(resampInt+'.full', outname=resampInt, alks=azLooks, rlks=rgLooks) #takeLooks(objAmp,azLooks,rgLooks)
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multilook(resampAmp+'.full', outname=resampAmp, alks=azLooks, rlks=rgLooks) #takeLooks(objInt,azLooks,rgLooks)
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os.system('rm ' + resampInt+'.full* ' + resampAmp + '.full* ')
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# End of modification
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for obj in [objInt, objAmp, objSlc1, objSlc2]:
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obj.finalizeImage()
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@ -142,7 +231,7 @@ def subBandIgram(self, masterSlc, slaveSlc, subBandDir):
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interferogramName = os.path.join(ifgDir , self.insar.ifgFilename)
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generateIgram(img1, img2, interferogramName, azLooks, rgLooks)
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generateIgram(self,img1, img2, interferogramName, azLooks, rgLooks)
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return interferogramName
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@ -185,7 +274,7 @@ def runFullBandInterferogram(self):
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masterFrame = self._insar.loadProduct( self._insar.masterSlcCropProduct)
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masterSlc = masterFrame.getImage().filename
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if self.doRubbersheeting:
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if (self.doRubbersheetingRange | self.doRubbersheetingAzimuth):
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slaveSlc = os.path.join(self._insar.coregDirname, self._insar.fineCoregFilename)
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else:
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slaveSlc = os.path.join(self._insar.coregDirname, self._insar.refinedCoregFilename)
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@ -212,19 +301,19 @@ def runFullBandInterferogram(self):
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interferogramName = os.path.join(ifgDir , self.insar.ifgFilename)
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generateIgram(img1, img2, interferogramName, azLooks, rgLooks)
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generateIgram(self,img1, img2, interferogramName, azLooks, rgLooks)
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###Compute coherence
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cohname = os.path.join(self.insar.ifgDirname, self.insar.correlationFilename)
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computeCoherence(masterSlc, slaveSlc, cohname+'.full')
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multilook(cohname+'.full', outname=cohname, alks=azLooks, rlks=rgLooks)
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#cohname = os.path.join(self.insar.ifgDirname, self.insar.correlationFilename)
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#computeCoherence(masterSlc, slaveSlc, cohname+'.full')
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#multilook(cohname+'.full', outname=cohname, alks=azLooks, rlks=rgLooks)
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###Multilook relevant geometry products
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for fname in [self.insar.latFilename, self.insar.lonFilename, self.insar.losFilename]:
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inname = os.path.join(self.insar.geometryDirname, fname)
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multilook(inname + '.full', outname= inname, alks=azLooks, rlks=rgLooks)
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#for fname in [self.insar.latFilename, self.insar.lonFilename, self.insar.losFilename]:
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# inname = os.path.join(self.insar.geometryDirname, fname)
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# multilook(inname + '.full', outname= inname, alks=azLooks, rlks=rgLooks)
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def runInterferogram(self, igramSpectrum = "full"):
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