Ejemplo n.º 1
0
def estimateFrameOffset(swath1, swath2, image1, image2, matchingMode=0):
    '''
    estimate offset of two adjacent frames using matching
    matchingMode:  0: ScanSAR full-aperture image
                   1: regular image
    '''
    import isceobj
    from isceobj.Alos2Proc.Alos2ProcPublic import cullOffsets
    from isceobj.Alos2Proc.Alos2ProcPublic import cullOffsetsRoipac
    from isceobj.Alos2Proc.Alos2ProcPublic import meanOffset
    from mroipac.ampcor.Ampcor import Ampcor

    ##########################################
    #2. match using ampcor
    ##########################################
    ampcor = Ampcor(name='insarapp_slcs_ampcor')
    ampcor.configure()

    #mSLC = isceobj.createSlcImage()
    mSLC = isceobj.createImage()
    mSLC.load(image1 + '.xml')
    mSLC.setFilename(image1)
    #mSLC.extraFilename = image1 + '.vrt'
    mSLC.setAccessMode('read')
    mSLC.createImage()

    #sSLC = isceobj.createSlcImage()
    sSLC = isceobj.createImage()
    sSLC.load(image2 + '.xml')
    sSLC.setFilename(image2)
    #sSLC.extraFilename = image2 + '.vrt'
    sSLC.setAccessMode('read')
    sSLC.createImage()

    if mSLC.dataType.upper() == 'CFLOAT':
        ampcor.setImageDataType1('complex')
        ampcor.setImageDataType2('complex')
    elif mSLC.dataType.upper() == 'FLOAT':
        ampcor.setImageDataType1('real')
        ampcor.setImageDataType2('real')
    else:
        raise Exception('file type not supported yet.')

    ampcor.setMasterSlcImage(mSLC)
    ampcor.setSlaveSlcImage(sSLC)

    #MATCH REGION
    #compute an offset at image center to use
    rgoff = -(swath2.startingRange -
              swath1.startingRange) / swath1.rangePixelSize
    azoff = -(
        (swath2.sensingStart -
         swath1.sensingStart).total_seconds()) / swath1.azimuthLineInterval
    rgoff = int(rgoff)
    azoff = int(azoff)
    #it seems that we cannot use 0, haven't look into the problem
    if rgoff == 0:
        rgoff = 1
    if azoff == 0:
        azoff = 1
    firstSample = 1
    if rgoff < 0:
        firstSample = int(35 - rgoff)
    firstLine = 1
    if azoff < 0:
        firstLine = int(35 - azoff)
    ampcor.setAcrossGrossOffset(rgoff)
    ampcor.setDownGrossOffset(azoff)
    ampcor.setFirstSampleAcross(firstSample)
    ampcor.setLastSampleAcross(mSLC.width)
    ampcor.setNumberLocationAcross(30)
    ampcor.setFirstSampleDown(firstLine)
    ampcor.setLastSampleDown(mSLC.length)
    ampcor.setNumberLocationDown(10)

    #MATCH PARAMETERS
    #full-aperture mode
    if matchingMode == 0:
        ampcor.setWindowSizeWidth(64)
        ampcor.setWindowSizeHeight(512)
        #note this is the half width/length of search area, number of resulting correlation samples: 32*2+1
        ampcor.setSearchWindowSizeWidth(32)
        ampcor.setSearchWindowSizeHeight(32)
        #triggering full-aperture mode matching
        ampcor.setWinsizeFilt(8)
        ampcor.setOversamplingFactorFilt(64)
    #regular mode
    else:
        ampcor.setWindowSizeWidth(64)
        ampcor.setWindowSizeHeight(64)
        ampcor.setSearchWindowSizeWidth(32)
        ampcor.setSearchWindowSizeHeight(32)

    #REST OF THE STUFF
    ampcor.setAcrossLooks(1)
    ampcor.setDownLooks(1)
    ampcor.setOversamplingFactor(64)
    ampcor.setZoomWindowSize(16)
    #1. The following not set
    #Matching Scale for Sample/Line Directions                       (-)    = 1. 1.
    #should add the following in Ampcor.py?
    #if not set, in this case, Ampcor.py'value is also 1. 1.
    #ampcor.setScaleFactorX(1.)
    #ampcor.setScaleFactorY(1.)

    #MATCH THRESHOLDS AND DEBUG DATA
    #2. The following not set
    #in roi_pac the value is set to 0 1
    #in isce the value is set to 0.001 1000.0
    #SNR and Covariance Thresholds                                   (-)    =  {s1} {s2}
    #should add the following in Ampcor?
    #THIS SHOULD BE THE ONLY THING THAT IS DIFFERENT FROM THAT OF ROI_PAC
    #ampcor.setThresholdSNR(0)
    #ampcor.setThresholdCov(1)
    ampcor.setDebugFlag(False)
    ampcor.setDisplayFlag(False)

    #in summary, only two things not set which are indicated by 'The following not set' above.

    #run ampcor
    ampcor.ampcor()
    offsets = ampcor.getOffsetField()
    #ampcorOffsetFile = 'ampcor.off'
    #writeOffset(offsets, ampcorOffsetFile)

    #finalize image, and re-create it
    #otherwise the file pointer is still at the end of the image
    mSLC.finalizeImage()
    sSLC.finalizeImage()

    #############################################
    #3. cull offsets
    #############################################
    #refinedOffsets = cullOffsets(offsets)
    refinedOffsets = cullOffsetsRoipac(offsets, numThreshold=50)

    if refinedOffsets != None:
        rangeOffset, azimuthOffset = meanOffset(refinedOffsets)
        return (rangeOffset, azimuthOffset)
    else:
        return None
Ejemplo n.º 2
0
def runSlcOffset(self):
    '''estimate SLC offsets
    '''
    if hasattr(self, 'doInSAR'):
        if not self.doInSAR:
            print('\nInSAR processing not requested, skip this and the remaining InSAR steps...')
            return

    catalog = isceobj.Catalog.createCatalog(self._insar.procDoc.name)
    self.updateParamemetersFromUser()

    referenceTrack = self._insar.loadTrack(reference=True)
    secondaryTrack = self._insar.loadTrack(reference=False)

    demFile = os.path.abspath(self._insar.dem)
    wbdFile = os.path.abspath(self._insar.wbd)

    for i, frameNumber in enumerate(self._insar.referenceFrames):
        frameDir = 'f{}_{}'.format(i+1, frameNumber)
        os.chdir(frameDir)
        for j, swathNumber in enumerate(range(self._insar.startingSwath, self._insar.endingSwath + 1)):
            swathDir = 's{}'.format(swathNumber)
            os.chdir(swathDir)

            print('estimating offset frame {}, swath {}'.format(frameNumber, swathNumber))

            referenceSwath = referenceTrack.frames[i].swaths[j]
            secondarySwath = secondaryTrack.frames[i].swaths[j]

            ##########################################
            #1. set number of matching points
            ##########################################
            #set initinial numbers
            if (self._insar.modeCombination == 21) or (self._insar.modeCombination == 22):
                numberOfOffsetsRange = 10
                numberOfOffsetsAzimuth = 40
            else:
                numberOfOffsetsRange = 20
                numberOfOffsetsAzimuth = 20

            #change the initial numbers using water body
            if self.useWbdForNumberOffsets and (self._insar.wbd != None):
                numberRangeLooks=100
                numberAzimuthLooks=100
                #compute land ratio using topo module
                topo(referenceSwath, referenceTrack, demFile, 'lat.rdr', 'lon.rdr', 'hgt.rdr', losFile='los.rdr', 
                    incFile=None, mskFile=None, 
                    numberRangeLooks=numberRangeLooks, numberAzimuthLooks=numberAzimuthLooks, multilookTimeOffset=False)
                waterBodyRadar('lat.rdr', 'lon.rdr', wbdFile, 'wbd.rdr')

                wbdImg = isceobj.createImage()
                wbdImg.load('wbd.rdr.xml')
                width = wbdImg.width
                length = wbdImg.length

                wbd = np.fromfile('wbd.rdr', dtype=np.byte).reshape(length, width)
                landRatio = np.sum(wbd==0) / (length*width)

                if (landRatio <= 0.00125):
                    print('\n\nWARNING: land too small for estimating slc offsets at frame {}, swath {}'.format(frameNumber, swathNumber))
                    print('proceed to use geometric offsets for forming interferogram')
                    print('but please consider not using this swath\n\n')
                    catalog.addItem('warning message', 'land too small for estimating slc offsets at frame {}, swath {}, use geometric offsets'.format(frameNumber, swathNumber), 'runSlcOffset')
                    
                    #compute geomtricla offsets
                    geo2rdr(secondarySwath, secondaryTrack, 'lat.rdr', 'lon.rdr', 'hgt.rdr', 'rg.rdr', 'az.rdr', numberRangeLooks=numberRangeLooks, numberAzimuthLooks=numberAzimuthLooks, multilookTimeOffset=False)
                    reformatGeometricalOffset('rg.rdr', 'az.rdr', 'cull.off', rangeStep=numberRangeLooks, azimuthStep=numberAzimuthLooks, maximumNumberOfOffsets=2000)

                    os.remove('lat.rdr')
                    os.remove('lat.rdr.vrt')
                    os.remove('lat.rdr.xml')
                    os.remove('lon.rdr')
                    os.remove('lon.rdr.vrt')
                    os.remove('lon.rdr.xml')
                    os.remove('hgt.rdr')
                    os.remove('hgt.rdr.vrt')
                    os.remove('hgt.rdr.xml')
                    os.remove('los.rdr')
                    os.remove('los.rdr.vrt')
                    os.remove('los.rdr.xml')
                    os.remove('wbd.rdr')
                    os.remove('wbd.rdr.vrt')
                    os.remove('wbd.rdr.xml')

                    os.remove('rg.rdr')
                    os.remove('rg.rdr.vrt')
                    os.remove('rg.rdr.xml')
                    os.remove('az.rdr')
                    os.remove('az.rdr.vrt')
                    os.remove('az.rdr.xml')

                    os.chdir('../')
                    continue


                os.remove('lat.rdr')
                os.remove('lat.rdr.vrt')
                os.remove('lat.rdr.xml')
                os.remove('lon.rdr')
                os.remove('lon.rdr.vrt')
                os.remove('lon.rdr.xml')
                os.remove('hgt.rdr')
                os.remove('hgt.rdr.vrt')
                os.remove('hgt.rdr.xml')
                os.remove('los.rdr')
                os.remove('los.rdr.vrt')
                os.remove('los.rdr.xml')
                os.remove('wbd.rdr')
                os.remove('wbd.rdr.vrt')
                os.remove('wbd.rdr.xml')

                #put the results on a grid with a specified interval
                interval = 0.2
                axisRatio = int(np.sqrt(landRatio)/interval)*interval + interval
                if axisRatio > 1:
                    axisRatio = 1

                numberOfOffsetsRange = int(numberOfOffsetsRange/axisRatio)
                numberOfOffsetsAzimuth = int(numberOfOffsetsAzimuth/axisRatio)
            else:
                catalog.addItem('warning message', 'no water mask used to determine number of matching points. frame {} swath {}'.format(frameNumber, swathNumber), 'runSlcOffset')

            #user's settings
            if self.numberRangeOffsets != None:
                numberOfOffsetsRange = self.numberRangeOffsets[i][j]
            if self.numberAzimuthOffsets != None:
                numberOfOffsetsAzimuth = self.numberAzimuthOffsets[i][j]

            catalog.addItem('number of offsets range frame {} swath {}'.format(frameNumber, swathNumber), numberOfOffsetsRange, 'runSlcOffset')
            catalog.addItem('number of offsets azimuth frame {} swath {}'.format(frameNumber, swathNumber), numberOfOffsetsAzimuth, 'runSlcOffset')

            ##########################################
            #2. match using ampcor
            ##########################################
            ampcor = Ampcor(name='insarapp_slcs_ampcor')
            ampcor.configure()

            mSLC = isceobj.createSlcImage()
            mSLC.load(self._insar.referenceSlc+'.xml')
            mSLC.setAccessMode('read')
            mSLC.createImage()

            sSLC = isceobj.createSlcImage()
            sSLC.load(self._insar.secondarySlc+'.xml')
            sSLC.setAccessMode('read')
            sSLC.createImage()

            ampcor.setImageDataType1('complex')
            ampcor.setImageDataType2('complex')

            ampcor.setReferenceSlcImage(mSLC)
            ampcor.setSecondarySlcImage(sSLC)

            #MATCH REGION
            #compute an offset at image center to use
            rgoff, azoff = computeOffsetFromOrbit(referenceSwath, referenceTrack, secondarySwath, secondaryTrack, 
                referenceSwath.numberOfSamples * 0.5, 
                referenceSwath.numberOfLines * 0.5)
            #it seems that we cannot use 0, haven't look into the problem
            if rgoff == 0:
                rgoff = 1
            if azoff == 0:
                azoff = 1
            firstSample = 1
            if rgoff < 0:
                firstSample = int(35 - rgoff)
            firstLine = 1
            if azoff < 0:
                firstLine = int(35 - azoff)
            ampcor.setAcrossGrossOffset(rgoff)
            ampcor.setDownGrossOffset(azoff)
            ampcor.setFirstSampleAcross(firstSample)
            ampcor.setLastSampleAcross(mSLC.width)
            ampcor.setNumberLocationAcross(numberOfOffsetsRange)
            ampcor.setFirstSampleDown(firstLine)
            ampcor.setLastSampleDown(mSLC.length)
            ampcor.setNumberLocationDown(numberOfOffsetsAzimuth)

            #MATCH PARAMETERS
            #full-aperture mode
            if (self._insar.modeCombination == 21) or \
               (self._insar.modeCombination == 22) or \
               (self._insar.modeCombination == 31) or \
               (self._insar.modeCombination == 32):
                ampcor.setWindowSizeWidth(64)
                ampcor.setWindowSizeHeight(512)
                #note this is the half width/length of search area, number of resulting correlation samples: 32*2+1
                ampcor.setSearchWindowSizeWidth(32)
                ampcor.setSearchWindowSizeHeight(32)
                #triggering full-aperture mode matching
                ampcor.setWinsizeFilt(8)
                ampcor.setOversamplingFactorFilt(64)
            #regular mode
            else:
                ampcor.setWindowSizeWidth(64)
                ampcor.setWindowSizeHeight(64)
                ampcor.setSearchWindowSizeWidth(32)
                ampcor.setSearchWindowSizeHeight(32)

            #REST OF THE STUFF
            ampcor.setAcrossLooks(1)
            ampcor.setDownLooks(1)
            ampcor.setOversamplingFactor(64)
            ampcor.setZoomWindowSize(16)
            #1. The following not set
            #Matching Scale for Sample/Line Directions                       (-)    = 1. 1.
            #should add the following in Ampcor.py?
            #if not set, in this case, Ampcor.py'value is also 1. 1.
            #ampcor.setScaleFactorX(1.)
            #ampcor.setScaleFactorY(1.)

            #MATCH THRESHOLDS AND DEBUG DATA
            #2. The following not set
            #in roi_pac the value is set to 0 1
            #in isce the value is set to 0.001 1000.0
            #SNR and Covariance Thresholds                                   (-)    =  {s1} {s2}
            #should add the following in Ampcor?
            #THIS SHOULD BE THE ONLY THING THAT IS DIFFERENT FROM THAT OF ROI_PAC
            #ampcor.setThresholdSNR(0)
            #ampcor.setThresholdCov(1)
            ampcor.setDebugFlag(False)
            ampcor.setDisplayFlag(False)

            #in summary, only two things not set which are indicated by 'The following not set' above.

            #run ampcor
            ampcor.ampcor()
            offsets = ampcor.getOffsetField()
            ampcorOffsetFile = 'ampcor.off'
            writeOffset(offsets, ampcorOffsetFile)

            #finalize image, and re-create it
            #otherwise the file pointer is still at the end of the image
            mSLC.finalizeImage()
            sSLC.finalizeImage()

            ##########################################
            #3. cull offsets
            ##########################################
            refinedOffsets = cullOffsets(offsets)
            if refinedOffsets == None:
                print('******************************************************************')
                print('WARNING: There are not enough offsets left, so we are forced to')
                print('         use offset without culling. frame {}, swath {}'.format(frameNumber, swathNumber))
                print('******************************************************************')
                catalog.addItem('warning message', 'not enough offsets left, use offset without culling. frame {} swath {}'.format(frameNumber, swathNumber), 'runSlcOffset')
                refinedOffsets = offsets

            cullOffsetFile = 'cull.off'
            writeOffset(refinedOffsets, cullOffsetFile)

            os.chdir('../')
        os.chdir('../')

    catalog.printToLog(logger, "runSlcOffset")
    self._insar.procDoc.addAllFromCatalog(catalog)
Ejemplo n.º 3
0
                    ampcor.setFirstSampleDown(firstLine)
                    ampcor.setLastSampleDown(mSLC.length)
                    ampcor.setNumberLocationDown(
                        numberOfOffsetsAzimuthUsed[i][j])

                    #MATCH PARAMETERS
                    #full-aperture mode
                    if referenceTrack.operationMode in scansarModes:
                        ampcor.setWindowSizeWidth(64)
                        ampcor.setWindowSizeHeight(512)
                        #note this is the half width/length of search area, number of resulting correlation samples: 32*2+1
                        ampcor.setSearchWindowSizeWidth(32)
                        ampcor.setSearchWindowSizeHeight(32)
                        #triggering full-aperture mode matching
                        ampcor.setWinsizeFilt(8)
                        ampcor.setOversamplingFactorFilt(64)
                    #regular mode
                    else:
                        ampcor.setWindowSizeWidth(64)
                        ampcor.setWindowSizeHeight(64)
                        ampcor.setSearchWindowSizeWidth(32)
                        ampcor.setSearchWindowSizeHeight(32)

                    #REST OF THE STUFF
                    ampcor.setAcrossLooks(1)
                    ampcor.setDownLooks(1)
                    ampcor.setOversamplingFactor(64)
                    ampcor.setZoomWindowSize(16)
                    #1. The following not set
                    #Matching Scale for Sample/Line Directions                       (-)    = 1. 1.
                    #should add the following in Ampcor.py?
Ejemplo n.º 4
0
def runSlcMatch(self):
    '''match a pair of SLCs
    '''
    if not self.doDenseOffset:
        return
    if not ((self._insar.modeCombination == 0) or (self._insar.modeCombination == 1)):
        return

    catalog = isceobj.Catalog.createCatalog(self._insar.procDoc.name)
    self.updateParamemetersFromUser()

    demFile = os.path.abspath(self._insar.dem)
    wbdFile = os.path.abspath(self._insar.wbd)

    denseOffsetDir = 'dense_offset'
    os.makedirs(denseOffsetDir, exist_ok=True)
    os.chdir(denseOffsetDir)

    masterTrack = self._insar.loadProduct(self._insar.masterTrackParameter)
    slaveTrack = self._insar.loadProduct(self._insar.slaveTrackParameter)

#########################################################################################


    ##################################################
    # compute geometric offsets
    ##################################################
    if self.useGPU and self._insar.hasGPU():
        topoGPU(masterTrack, 1, 1, demFile, 
                       'lat.rdr', 'lon.rdr', 'hgt.rdr', 'los.rdr')
        geo2RdrGPU(slaveTrack, 1, 1, 
            'lat.rdr', 'lon.rdr', 'hgt.rdr', 'rg.off', 'az.off')
    else:
        topoCPU(masterTrack, 1, 1, demFile, 
                       'lat.rdr', 'lon.rdr', 'hgt.rdr', 'los.rdr')
        geo2RdrCPU(slaveTrack, 1, 1, 
            'lat.rdr', 'lon.rdr', 'hgt.rdr', 'rg.off', 'az.off')


    ##################################################
    # resample SLC
    ##################################################
    #SlaveSlcResampled = os.path.splitext(self._insar.slaveSlc)[0]+'_resamp'+os.path.splitext(self._insar.slaveSlc)[1]
    SlaveSlcResampled = self._insar.slaveSlcCoregistered
    rangeOffsets2Frac = 0.0
    azimuthOffsets2Frac = 0.0
    resamp(self._insar.slaveSlc,
           SlaveSlcResampled,
           'rg.off',
           'az.off',
           masterTrack.numberOfSamples, masterTrack.numberOfLines,
           slaveTrack.prf,
           slaveTrack.dopplerVsPixel,
           [rangeOffsets2Frac, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0],
           [azimuthOffsets2Frac, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0])
    create_xml(SlaveSlcResampled, masterTrack.numberOfSamples, masterTrack.numberOfLines, 'slc')


    if self.estimateResidualOffset:

        numberOfOffsets = 800
        rangeStep = 50

        length = masterTrack.numberOfLines
        width = masterTrack.numberOfSamples
        waterBodyRadar('lat.rdr', 'lon.rdr', wbdFile, 'wbd.rdr')
        wbd=np.memmap('wbd.rdr', dtype=np.int8, mode='r', shape=(length, width))
        azimuthStep = int(length/width*rangeStep+0.5)
        landRatio = np.sum(wbd[0:length:azimuthStep,0:width:rangeStep]!=-1)/(int(length/azimuthStep)*int(width/rangeStep))
        del wbd

        if (landRatio <= 0.00125):
            print('\n\nWARNING: land area too small for estimating residual slc offsets')
            print('do not estimate residual offsets\n\n')
            catalog.addItem('warning message', 'land area too small for estimating residual slc offsets', 'runSlcMatch')
        else:
            numberOfOffsets /= landRatio
            #we use equal number of offsets in range and azimuth here
            numberOfOffsetsRange = int(np.sqrt(numberOfOffsets)+0.5)
            numberOfOffsetsAzimuth = int(np.sqrt(numberOfOffsets)+0.5)
            if numberOfOffsetsRange > int(width/2):
                numberOfOffsetsRange = int(width/2)
            if numberOfOffsetsAzimuth > int(length/2):
                numberOfOffsetsAzimuth = int(length/2)
            if numberOfOffsetsRange < 10:
                numberOfOffsetsRange = 10
            if numberOfOffsetsAzimuth < 10:
                numberOfOffsetsAzimuth = 10


            ##########################################
            #2. match using ampcor
            ##########################################
            ampcor = Ampcor(name='insarapp_slcs_ampcor')
            ampcor.configure()

            mSLC = isceobj.createSlcImage()
            mSLC.load(self._insar.masterSlc+'.xml')
            mSLC.setAccessMode('read')
            mSLC.createImage()

            sSLC = isceobj.createSlcImage()
            sSLC.load(SlaveSlcResampled+'.xml')
            sSLC.setAccessMode('read')
            sSLC.createImage()

            ampcor.setImageDataType1('complex')
            ampcor.setImageDataType2('complex')

            ampcor.setMasterSlcImage(mSLC)
            ampcor.setSlaveSlcImage(sSLC)

            #MATCH REGION
            #compute an offset at image center to use
            rgoff = 0.0
            azoff = 0.0
            #it seems that we cannot use 0, haven't look into the problem
            if rgoff == 0:
                rgoff = 1
            if azoff == 0:
                azoff = 1
            firstSample = 1
            if rgoff < 0:
                firstSample = int(35 - rgoff)
            firstLine = 1
            if azoff < 0:
                firstLine = int(35 - azoff)
            ampcor.setAcrossGrossOffset(rgoff)
            ampcor.setDownGrossOffset(azoff)
            ampcor.setFirstSampleAcross(firstSample)
            ampcor.setLastSampleAcross(mSLC.width)
            ampcor.setNumberLocationAcross(numberOfOffsetsRange)
            ampcor.setFirstSampleDown(firstLine)
            ampcor.setLastSampleDown(mSLC.length)
            ampcor.setNumberLocationDown(numberOfOffsetsAzimuth)

            #MATCH PARAMETERS
            #full-aperture mode
            if (self._insar.modeCombination == 21) or \
               (self._insar.modeCombination == 22) or \
               (self._insar.modeCombination == 31) or \
               (self._insar.modeCombination == 32):
                ampcor.setWindowSizeWidth(64)
                ampcor.setWindowSizeHeight(512)
                #note this is the half width/length of search area, number of resulting correlation samples: 32*2+1
                ampcor.setSearchWindowSizeWidth(32)
                ampcor.setSearchWindowSizeHeight(32)
                #triggering full-aperture mode matching
                ampcor.setWinsizeFilt(8)
                ampcor.setOversamplingFactorFilt(64)
            #regular mode
            else:
                ampcor.setWindowSizeWidth(64)
                ampcor.setWindowSizeHeight(64)
                ampcor.setSearchWindowSizeWidth(16)
                ampcor.setSearchWindowSizeHeight(16)

            #REST OF THE STUFF
            ampcor.setAcrossLooks(1)
            ampcor.setDownLooks(1)
            ampcor.setOversamplingFactor(64)
            ampcor.setZoomWindowSize(16)
            #1. The following not set
            #Matching Scale for Sample/Line Directions                       (-)    = 1. 1.
            #should add the following in Ampcor.py?
            #if not set, in this case, Ampcor.py'value is also 1. 1.
            #ampcor.setScaleFactorX(1.)
            #ampcor.setScaleFactorY(1.)

            #MATCH THRESHOLDS AND DEBUG DATA
            #2. The following not set
            #in roi_pac the value is set to 0 1
            #in isce the value is set to 0.001 1000.0
            #SNR and Covariance Thresholds                                   (-)    =  {s1} {s2}
            #should add the following in Ampcor?
            #THIS SHOULD BE THE ONLY THING THAT IS DIFFERENT FROM THAT OF ROI_PAC
            #ampcor.setThresholdSNR(0)
            #ampcor.setThresholdCov(1)
            ampcor.setDebugFlag(False)
            ampcor.setDisplayFlag(False)

            #in summary, only two things not set which are indicated by 'The following not set' above.

            #run ampcor
            ampcor.ampcor()
            offsets = ampcor.getOffsetField()
            mSLC.finalizeImage()
            sSLC.finalizeImage()


            #3. cull offsets
            refinedOffsets = cullOffsetsRoipac(offsets, numThreshold=50)
            if refinedOffsets == None:
                print('\n\nWARNING: too few offsets left for slc residual offset estimation')
                print('do not estimate residual offsets\n\n')
                catalog.addItem('warning message', 'too few offsets left for slc residual offset estimation', 'runSlcMatch')
            else:
                rangeOffset, azimuthOffset = meanOffset(refinedOffsets)
                os.remove(SlaveSlcResampled)
                os.remove(SlaveSlcResampled+'.vrt')
                os.remove(SlaveSlcResampled+'.xml')
                
                rangeOffsets2Frac = rangeOffset
                azimuthOffsets2Frac = azimuthOffset
                resamp(self._insar.slaveSlc,
                       SlaveSlcResampled,
                       'rg.off',
                       'az.off',
                       masterTrack.numberOfSamples, masterTrack.numberOfLines,
                       slaveTrack.prf,
                       slaveTrack.dopplerVsPixel,
                       [rangeOffsets2Frac, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0],
                       [azimuthOffsets2Frac, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0])
                create_xml(SlaveSlcResampled, masterTrack.numberOfSamples, masterTrack.numberOfLines, 'slc')

                catalog.addItem('number of offsets range', numberOfOffsetsRange, 'runSlcMatch')
                catalog.addItem('number of offsets azimuth', numberOfOffsetsAzimuth, 'runSlcMatch')
                catalog.addItem('range residual offset after geometric coregistration', rangeOffset, 'runSlcMatch')
                catalog.addItem('azimuth residual offset after geometric coregistration', azimuthOffset, 'runSlcMatch')




    if self.deleteGeometryFiles:
        os.remove('lat.rdr')
        os.remove('lat.rdr.vrt')
        os.remove('lat.rdr.xml')
        os.remove('lon.rdr')
        os.remove('lon.rdr.vrt')
        os.remove('lon.rdr.xml')
        os.remove('hgt.rdr')
        os.remove('hgt.rdr.vrt')
        os.remove('hgt.rdr.xml')
        os.remove('los.rdr')
        os.remove('los.rdr.vrt')
        os.remove('los.rdr.xml')
        # if os.path.isfile('wbd.rdr'):
        #     os.remove('wbd.rdr')
        #     os.remove('wbd.rdr.vrt')
        #     os.remove('wbd.rdr.xml')

#########################################################################################

    os.chdir('../')
    catalog.printToLog(logger, "runSlcMatch")
    self._insar.procDoc.addAllFromCatalog(catalog)