def estimateOffsetField(reference, secondary, inps=None):
'''
Estimate offset field between burst and simamp.
'''
###Loading the secondary image object
sim = isceobj.createSlcImage()
sim.load(secondary+'.xml')
sim.setAccessMode('READ')
sim.createImage()
###Loading the reference image object
sar = isceobj.createSlcImage()
sar.load(reference + '.xml')
sar.setAccessMode('READ')
sar.createImage()
width = sar.getWidth()
length = sar.getLength()
objOffset = DenseAmpcor(name='dense')
objOffset.configure()
# objOffset.numberThreads = 6
objOffset.setWindowSizeWidth(inps.winwidth)
objOffset.setWindowSizeHeight(inps.winhgt)
objOffset.setSearchWindowSizeWidth(inps.srcwidth)
objOffset.setSearchWindowSizeHeight(inps.srchgt)
objOffset.skipSampleAcross = inps.skipwidth
objOffset.skipSampleDown = inps.skiphgt
objOffset.margin = inps.margin
objOffset.oversamplingFactor = inps.oversample
objOffset.setAcrossGrossOffset(inps.rgshift)
objOffset.setDownGrossOffset(inps.azshift)
objOffset.setFirstPRF(1.0)
objOffset.setSecondPRF(1.0)
if sar.dataType.startswith('C'):
objOffset.setImageDataType1('mag')
else:
objOffset.setImageDataType1('real')
if sim.dataType.startswith('C'):
objOffset.setImageDataType2('mag')
else:
objOffset.setImageDataType2('real')
objOffset.offsetImageName = inps.outprefix + '.bil'
objOffset.snrImageName = inps.outprefix +'_snr.bil'
objOffset.denseampcor(sar, sim)
sar.finalizeImage()
sim.finalizeImage()
return objOffset
def runDenseOffsetCPU(self):
'''
Estimate dense offset field between a pair of SLCs.
'''
from mroipac.ampcor.DenseAmpcor import DenseAmpcor
from isceobj.Alos2Proc.Alos2ProcPublic import runCmd
####For this module currently, we need to create an actual file on disk
for infile in [
self._insar.referenceSlc, self._insar.secondarySlcCoregistered
]:
if os.path.isfile(infile):
continue
cmd = 'gdal_translate -of ENVI {0}.vrt {0}'.format(infile)
runCmd(cmd)
m = isceobj.createSlcImage()
m.load(self._insar.referenceSlc + '.xml')
m.setAccessMode('READ')
s = isceobj.createSlcImage()
s.load(self._insar.secondarySlcCoregistered + '.xml')
s.setAccessMode('READ')
#objOffset.numberThreads = 1
print('\n************* dense offset estimation parameters *************')
print('reference SLC: %s' % (self._insar.referenceSlc))
print('secondary SLC: %s' % (self._insar.secondarySlcCoregistered))
print('dense offset estimation window width: %d' %
(self.offsetWindowWidth))
print('dense offset estimation window hight: %d' %
(self.offsetWindowHeight))
print('dense offset search window width: %d' %
(self.offsetSearchWindowWidth))
print('dense offset search window hight: %d' %
(self.offsetSearchWindowHeight))
print('dense offset skip width: %d' % (self.offsetSkipWidth))
print('dense offset skip hight: %d' % (self.offsetSkipHeight))
print('dense offset covariance surface oversample factor: %d' %
(self.offsetCovarianceOversamplingFactor))
print('dense offset covariance surface oversample window size: %d\n' %
(self.offsetCovarianceOversamplingWindowsize))
objOffset = DenseAmpcor(name='dense')
objOffset.configure()
if m.dataType.startswith('C'):
objOffset.setImageDataType1('complex')
else:
objOffset.setImageDataType1('real')
if s.dataType.startswith('C'):
objOffset.setImageDataType2('complex')
else:
objOffset.setImageDataType2('real')
objOffset.offsetImageName = self._insar.denseOffset
objOffset.snrImageName = self._insar.denseOffsetSnr
objOffset.covImageName = self._insar.denseOffsetCov
objOffset.setWindowSizeWidth(self.offsetWindowWidth)
objOffset.setWindowSizeHeight(self.offsetWindowHeight)
#NOTE: actual number of resulting correlation pixels: self.offsetSearchWindowWidth*2+1
objOffset.setSearchWindowSizeWidth(self.offsetSearchWindowWidth)
objOffset.setSearchWindowSizeHeight(self.offsetSearchWindowHeight)
objOffset.setSkipSampleAcross(self.offsetSkipWidth)
objOffset.setSkipSampleDown(self.offsetSkipHeight)
objOffset.setOversamplingFactor(self.offsetCovarianceOversamplingFactor)
objOffset.setZoomWindowSize(self.offsetCovarianceOversamplingWindowsize)
objOffset.setAcrossGrossOffset(0)
objOffset.setDownGrossOffset(0)
#these are azimuth scaling factor
#Matching Scale for Sample/Line Directions (-) = 1.000000551500 1.000002373200
objOffset.setFirstPRF(1.0)
objOffset.setSecondPRF(1.0)
objOffset.denseampcor(m, s)
### Store params for later
self._insar.offsetImageTopoffset = objOffset.locationDown[0][0]
self._insar.offsetImageLeftoffset = objOffset.locationAcross[0][0]
#change band order
width = objOffset.offsetCols
length = objOffset.offsetLines
offset1 = np.fromfile(self._insar.denseOffset,
dtype=np.float32).reshape(length * 2, width)
offset2 = np.zeros((length * 2, width), dtype=np.float32)
offset2[0:length * 2:2, :] = offset1[1:length * 2:2, :]
offset2[1:length * 2:2, :] = offset1[0:length * 2:2, :]
os.remove(self._insar.denseOffset)
os.remove(self._insar.denseOffset + '.vrt')
os.remove(self._insar.denseOffset + '.xml')
offset2.astype(np.float32).tofile(self._insar.denseOffset)
outImg = isceobj.createImage()
outImg.setDataType('FLOAT')
outImg.setFilename(self._insar.denseOffset)
outImg.setBands(2)
outImg.scheme = 'BIL'
outImg.setWidth(width)
outImg.setLength(length)
outImg.addDescription(
'two-band pixel offset file. 1st band: range offset, 2nd band: azimuth offset'
)
outImg.setAccessMode('read')
outImg.renderHdr()
return (objOffset.offsetCols, objOffset.offsetLines)
def runDenseOffsetsCPU(self):
'''
Estimate dense offset field between merged master bursts and slave bursts.
'''
from mroipac.ampcor.DenseAmpcor import DenseAmpcor
os.environ['VRT_SHARED_SOURCE'] = "0"
print('\n============================================================')
print('Configuring DenseAmpcor object for processing...\n')
### Determine appropriate filenames
mf = 'master.slc'
sf = 'slave.slc'
if not ((self.numberRangeLooks == 1) and (self.numberAzimuthLooks == 1)):
mf += '.full'
sf += '.full'
master = os.path.join(self._insar.mergedDirname, mf)
slave = os.path.join(self._insar.mergedDirname, sf)
####For this module currently, we need to create an actual file on disk
for infile in [master, slave]:
if os.path.isfile(infile):
continue
cmd = 'gdal_translate -of ENVI {0}.vrt {0}'.format(infile)
status = os.system(cmd)
if status:
raise Exception('{0} could not be executed'.format(status))
### Load the master object
m = isceobj.createSlcImage()
m.load(master + '.xml')
m.setAccessMode('READ')
# m.createImage()
### Load the slave object
s = isceobj.createSlcImage()
s.load(slave + '.xml')
s.setAccessMode('READ')
# s.createImage()
width = m.getWidth()
length = m.getLength()
objOffset = DenseAmpcor(name='dense')
objOffset.configure()
# objOffset.numberThreads = 1
### Configure dense Ampcor object
print('\nMaster frame: %s' % (mf))
print('Slave frame: %s' % (sf))
print('Main window size width: %d' % (self.winwidth))
print('Main window size height: %d' % (self.winhgt))
print('Search window size width: %d' % (self.srcwidth))
print('Search window size height: %d' % (self.srchgt))
print('Skip sample across: %d' % (self.skipwidth))
print('Skip sample down: %d' % (self.skiphgt))
print('Field margin: %d' % (self.margin))
print('Oversampling factor: %d' % (self.oversample))
print('Gross offset across: %d' % (self.rgshift))
print('Gross offset down: %d\n' % (self.azshift))
objOffset.setWindowSizeWidth(self.winwidth)
objOffset.setWindowSizeHeight(self.winhgt)
objOffset.setSearchWindowSizeWidth(self.srcwidth)
objOffset.setSearchWindowSizeHeight(self.srchgt)
objOffset.skipSampleAcross = self.skipwidth
objOffset.skipSampleDown = self.skiphgt
objOffset.oversamplingFactor = self.oversample
objOffset.setAcrossGrossOffset(self.rgshift)
objOffset.setDownGrossOffset(self.azshift)
objOffset.setFirstPRF(1.0)
objOffset.setSecondPRF(1.0)
if m.dataType.startswith('C'):
objOffset.setImageDataType1('mag')
else:
objOffset.setImageDataType1('real')
if s.dataType.startswith('C'):
objOffset.setImageDataType2('mag')
else:
objOffset.setImageDataType2('real')
objOffset.offsetImageName = os.path.join(self._insar.mergedDirname,
self._insar.offsetfile)
objOffset.snrImageName = os.path.join(self._insar.mergedDirname,
self._insar.snrfile)
print('Output dense offsets file name: %s' % (objOffset.offsetImageName))
print('Output SNR file name: %s' % (objOffset.snrImageName))
print('\n======================================')
print('Running dense ampcor...')
print('======================================\n')
objOffset.denseampcor(m, s) ### Where the magic happens...
### Store params for later
self._insar.offset_width = objOffset.offsetCols
self._insar.offset_length = objOffset.offsetLines
self._insar.offset_top = objOffset.locationDown[0][0]
self._insar.offset_left = objOffset.locationAcross[0][0]
def estimateOffsetField(master, slave, denseOffsetFileName,
ww=64, wh=64,
sw=20, shh=20,
kw=32, kh=32):
'''
Estimate offset field between burst and simamp.
'''
###Loading the slave image object
sim = isceobj.createSlcImage()
sim.load(slave+'.xml')
sim.setAccessMode('READ')
sim.createImage()
###Loading the master image object
sar = isceobj.createSlcImage()
sar.load(master + '.xml')
sar.setAccessMode('READ')
sar.createImage()
width = sar.getWidth()
length = sar.getLength()
objOffset = DenseAmpcor(name='dense')
objOffset.configure()
# objOffset.numberThreads = 6
objOffset.setWindowSizeWidth(ww) #inps.winwidth)
objOffset.setWindowSizeHeight(wh) #inps.winhgt)
objOffset.setSearchWindowSizeWidth(sw) #inps.srcwidth)
objOffset.setSearchWindowSizeHeight(shh) #inps.srchgt)
objOffset.skipSampleAcross = kw #inps.skipwidth
objOffset.skipSampleDown = kh #inps.skiphgt
objOffset.margin = 50 #inps.margin
objOffset.oversamplingFactor = 32 #inps.oversample
objOffset.setAcrossGrossOffset(0) #inps.rgshift)
objOffset.setDownGrossOffset(0) #inps.azshift)
objOffset.setFirstPRF(1.0)
objOffset.setSecondPRF(1.0)
if sar.dataType.startswith('C'):
objOffset.setImageDataType1('mag')
else:
objOffset.setImageDataType1('real')
if sim.dataType.startswith('C'):
objOffset.setImageDataType2('mag')
else:
objOffset.setImageDataType2('real')
objOffset.offsetImageName = denseOffsetFileName + '.bil'
objOffset.snrImageName = denseOffsetFileName +'_snr.bil'
objOffset.denseampcor(sar, sim)
sar.finalizeImage()
sim.finalizeImage()
return (objOffset.locationDown[0][0], objOffset.locationAcross[0][0])
def runDenseOffsets(self):
'''
Estimate dense offset field between merged master bursts and slave bursts.
'''
os.environ['VRT_SHARED_SOURCE'] = "0"
if not self.doDenseOffsets:
print('Dense offsets not requested. Skipping ....')
return
print('\n============================================================')
print('Configuring DenseAmpcor object for processing...\n')
### Determine appropriate filenames
mf = 'master.slc'
sf = 'slave.slc'
if not ((self.numberRangeLooks == 1) and (self.numberAzimuthLooks == 1)):
mf += '.full'
sf += '.full'
master = os.path.join(self._insar.mergedDirname, mf)
slave = os.path.join(self._insar.mergedDirname, sf)
### Load the master object
m = isceobj.createSlcImage()
m.load(master + '.xml')
m.setAccessMode('READ')
# m.createImage()
### Load the slave object
s = isceobj.createSlcImage()
s.load(slave + '.xml')
s.setAccessMode('READ')
# s.createImage()
width = m.getWidth()
length = m.getLength()
objOffset = DenseAmpcor(name='dense')
objOffset.configure()
# objOffset.numberThreads = 1
### Configure dense Ampcor object
print('\nMaster frame: %s' % (mf))
print('Slave frame: %s' % (sf))
print('Main window size width: %d' % (self.winwidth))
print('Main window size height: %d' % (self.winhgt))
print('Search window size width: %d' % (self.srcwidth))
print('Search window size height: %d' % (self.srchgt))
print('Skip sample across: %d' % (self.skipwidth))
print('Skip sample down: %d' % (self.skiphgt))
print('Field margin: %d' % (self.margin))
print('Oversampling factor: %d' % (self.oversample))
print('Gross offset across: %d' % (self.rgshift))
print('Gross offset down: %d\n' % (self.azshift))
objOffset.setWindowSizeWidth(self.winwidth)
objOffset.setWindowSizeHeight(self.winhgt)
objOffset.setSearchWindowSizeWidth(self.srcwidth)
objOffset.setSearchWindowSizeHeight(self.srchgt)
objOffset.skipSampleAcross = self.skipwidth
objOffset.skipSampleDown = self.skiphgt
objOffset.oversamplingFactor = self.oversample
objOffset.setAcrossGrossOffset(self.rgshift)
objOffset.setDownGrossOffset(self.azshift)
objOffset.setFirstPRF(1.0)
objOffset.setSecondPRF(1.0)
if m.dataType.startswith('C'):
objOffset.setImageDataType1('mag')
else:
objOffset.setImageDataType1('real')
if s.dataType.startswith('C'):
objOffset.setImageDataType2('mag')
else:
objOffset.setImageDataType2('real')
objOffset.offsetImageName = os.path.join(self._insar.mergedDirname,
self._insar.offsetfile)
objOffset.snrImageName = os.path.join(self._insar.mergedDirname,
self._insar.snrfile)
print('Output dense offsets file name: %s' % (objOffset.offsetImageName))
print('Output SNR file name: %s' % (objOffset.snrImageName))
print('\n======================================')
print('Running dense ampcor...')
print('======================================\n')
objOffset.denseampcor(m, s) ### Where the magic happens...
### Store params for later
self._insar.offset_width = objOffset.offsetCols
self._insar.offset_length = objOffset.offsetLines
self._insar.offset_top = objOffset.locationDown[0][0]
self._insar.offset_left = objOffset.locationAcross[0][0]