124 lines
4.8 KiB
Python
124 lines
4.8 KiB
Python
|
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||
|
|
# Copyright 2014 California Institute of Technology. ALL RIGHTS RESERVED.
|
||
|
|
#
|
||
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
# you may not use this file except in compliance with the License.
|
||
|
|
# You may obtain a copy of the License at
|
||
|
|
#
|
||
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
#
|
||
|
|
# Unless required by applicable law or agreed to in writing, software
|
||
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
# See the License for the specific language governing permissions and
|
||
|
|
# limitations under the License.
|
||
|
|
#
|
||
|
|
# United States Government Sponsorship acknowledged. This software is subject to
|
||
|
|
# U.S. export control laws and regulations and has been classified as 'EAR99 NLR'
|
||
|
|
# (No [Export] License Required except when exporting to an embargoed country,
|
||
|
|
# end user, or in support of a prohibited end use). By downloading this software,
|
||
|
|
# the user agrees to comply with all applicable U.S. export laws and regulations.
|
||
|
|
# The user has the responsibility to obtain export licenses, or other export
|
||
|
|
# authority as may be required before exporting this software to any 'EAR99'
|
||
|
|
# embargoed foreign country or citizen of those countries.
|
||
|
|
#
|
||
|
|
# Authors: Kosal Khun, Marco Lavalle
|
||
|
|
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
# Comment: Adapted from InsarProc/runUnwrappSnaphu.py
|
||
|
|
# giangi: taken Piyush code for snaphu and adapted
|
||
|
|
|
||
|
|
import logging
|
||
|
|
import isceobj
|
||
|
|
from contrib.Snaphu.Snaphu import Snaphu
|
||
|
|
from isceobj.Constants import SPEED_OF_LIGHT
|
||
|
|
import os
|
||
|
|
|
||
|
|
logger = logging.getLogger('isce.isceProc.runUnwrap')
|
||
|
|
|
||
|
|
def runUnwrap(self, costMode='DEFO', initMethod='MST', defomax=4.0, initOnly=False):
|
||
|
|
infos = {}
|
||
|
|
for attribute in ['topophaseFlatFilename', 'unwrappedIntFilename', 'coherenceFilename', 'averageHeight', 'topo', 'peg']:
|
||
|
|
infos[attribute] = getattr(self._isce, attribute)
|
||
|
|
|
||
|
|
for sceneid1, sceneid2 in self._isce.selectedPairs:
|
||
|
|
pair = (sceneid1, sceneid2)
|
||
|
|
for pol in self._isce.selectedPols:
|
||
|
|
frame1 = self._isce.frames[sceneid1][pol]
|
||
|
|
intImage = self._isce.resampIntImages[pair][pol]
|
||
|
|
width = intImage.width
|
||
|
|
sid = self._isce.formatname(pair, pol)
|
||
|
|
infos['outputPath'] = os.path.join(self.getoutputdir(sceneid1, sceneid2), sid)
|
||
|
|
run(frame1, width, costMode, initMethod, defomax, initOnly, infos, sceneid=sid)
|
||
|
|
|
||
|
|
|
||
|
|
def run(frame1, width, costMode, initMethod, defomax, initOnly, infos, sceneid='NO_ID'):
|
||
|
|
logger.info("Unwrapping interferogram using Snaphu %s: %s" % (initMethod, sceneid))
|
||
|
|
topo = infos['topo']
|
||
|
|
wrapName = infos['outputPath'] + '.' + infos['topophaseFlatFilename']
|
||
|
|
unwrapName = infos['outputPath'] + '.' + infos['unwrappedIntFilename']
|
||
|
|
corrfile = infos['outputPath'] + '.' + infos['coherenceFilename']
|
||
|
|
altitude = infos['averageHeight']
|
||
|
|
wavelength = frame1.getInstrument().getRadarWavelength()
|
||
|
|
earthRadius = infos['peg'].radiusOfCurvature
|
||
|
|
|
||
|
|
rangeLooks = topo.numberRangeLooks
|
||
|
|
azimuthLooks = topo.numberAzimuthLooks
|
||
|
|
|
||
|
|
azres = frame1.platform.antennaLength/2.0
|
||
|
|
azfact = topo.numberAzimuthLooks *azres / topo.azimuthSpacing
|
||
|
|
|
||
|
|
rBW = frame1.instrument.pulseLength * frame1.instrument.chirpSlope
|
||
|
|
rgres = abs(SPEED_OF_LIGHT / (2.0 * rBW))
|
||
|
|
rngfact = rgres/topo.slantRangePixelSpacing
|
||
|
|
|
||
|
|
corrLooks = topo.numberRangeLooks * topo.numberAzimuthLooks/(azfact*rngfact)
|
||
|
|
maxComponents = 20
|
||
|
|
|
||
|
|
snp = Snaphu()
|
||
|
|
snp.setInitOnly(initOnly)
|
||
|
|
snp.setInput(wrapName)
|
||
|
|
snp.setOutput(unwrapName)
|
||
|
|
snp.setWidth(width)
|
||
|
|
snp.setCostMode(costMode)
|
||
|
|
snp.setEarthRadius(earthRadius)
|
||
|
|
snp.setWavelength(wavelength)
|
||
|
|
snp.setAltitude(altitude)
|
||
|
|
snp.setCorrfile(corrfile)
|
||
|
|
snp.setInitMethod(initMethod)
|
||
|
|
snp.setCorrLooks(corrLooks)
|
||
|
|
snp.setMaxComponents(maxComponents)
|
||
|
|
snp.setDefoMaxCycles(defomax)
|
||
|
|
snp.setRangeLooks(rangeLooks)
|
||
|
|
snp.setAzimuthLooks(azimuthLooks)
|
||
|
|
snp.prepare()
|
||
|
|
snp.unwrap()
|
||
|
|
|
||
|
|
######Render XML
|
||
|
|
outImage = isceobj.Image.createUnwImage()
|
||
|
|
outImage.setFilename(unwrapName)
|
||
|
|
outImage.setWidth(width)
|
||
|
|
outImage.setAccessMode('read')
|
||
|
|
outImage.imageType = 'unw'
|
||
|
|
outImage.bands = 2
|
||
|
|
outImage.scheme = 'BIL'
|
||
|
|
outImage.dataType = 'FLOAT'
|
||
|
|
outImage.finalizeImage()
|
||
|
|
outImage.renderHdr()
|
||
|
|
|
||
|
|
#####Check if connected components was created
|
||
|
|
if snp.dumpConnectedComponents:
|
||
|
|
connImage = isceobj.Image.createImage()
|
||
|
|
connImage.setFilename(unwrapName+'.conncomp')
|
||
|
|
connImage.setWidth(width)
|
||
|
|
connImage.setAccessMode('read')
|
||
|
|
connImage.setDataType('BYTE')
|
||
|
|
connImage.finalizeImage()
|
||
|
|
connImage.renderHdr()
|
||
|
|
|
||
|
|
|
||
|
|
def runUnwrapMcf(self):
|
||
|
|
runUnwrap(self, costMode='SMOOTH', initMethod='MCF', defomax=2, initOnly=True)
|