Error during range shift

Hi,

I do get the following error message while applyying range shift:

Range-Shift: estimateOffset failed.
estimateOffset: java.lang.NullPointerException
Exception in thread “Thread-6” org.esa.snap.framework.gpf.OperatorException: estimateOffset: java.lang.NullPointerException
at org.esa.snap.gpf.OperatorUtils.catchOperatorException(OperatorUtils.java:385)
at org.esa.s1tbx.sentinel1.gpf.AzimuthShiftOp$1.run(AzimuthShiftOp.java:369)
Range-Shift: estimateOffset failed.
estimateOffset: java.lang.NullPointerException
Exception in thread “Thread-12” org.esa.snap.framework.gpf.OperatorException: estimateOffset: java.lang.NullPointerException

S1A_IW_SLC__1SSH_20150602T073756_20150602T073824_006191_008121_01F7.zip
S1A_IW_SLC__1SSH_20150614T073756_20150614T073824_006366_008637_3E1C.zip

I tried pairs of the same orbit. I can perform the range shift for scenes recorded before 20150602 but not after this date.
I also tried different windows like 512/4 or 256/8

Thanks for any help

Same problem with high Registration Window Size (=1024) and high Interpolation Factor (=16).

When debuging, anomaly appears in the getSlaveGCPShift function and more particulary with the getData() method. Reading image data never stops: infinite loop.

private boolean getSlaveGCPShift(final double shift, final double mI, final double sI) {
try {
final PlanarImage crossCorrelatedImage = computeCrossCorrelatedImage(mI, sI);
final int w = crossCorrelatedImage.getWidth();
final int h = crossCorrelatedImage.getHeight();
final Raster idftData = crossCorrelatedImage.getData();

Hi,

please forget about the different dates .n erro on my site - I mixed up
two different regions:

However,
I recognized that this pair is an open water section with some sea
ice. So there shouldn’t be anything to match. That might cause the
problem. However if there is nothing to match than the range shift
should be set to zero and processing should continue …

Am 06.10.15 um 15:58 schrieb patrickI:

Hi,

I tried another pair and again I do get error messages
(1)
Range-Shift: estimateOffset failed.
estimateOffset: java.lang.NullPointerException
Exception in thread “Thread-12” org.esa.snap.framework.gpf.OperatorException: estimateOffset: java.lang.NullPointerException
at org.esa.snap.gpf.OperatorUtils.catchOperatorException(OperatorUtils.java:385)
at org.esa.s1tbx.sentinel1.gpf.AzimuthShiftOp$1.run(AzimuthShiftOp.java:369)

(2)
getSlaveGCPShift failed null
getSlaveGCPShift failed null
getSlaveGCPShift failed null
getSlaveGCPShift failed null
azOffset = -4.9304852401162995E-5
azOffset = 2.1363278996447047E-4
azOffset = 3.985068481815185E-4
azOffset = -2.6006126171956525E-4
azOffset = -1.7115592108634988E-5
azOffset = 6.166955136314377E-4
azOffset = -3.6492286459823144E-4
azOffset = -4.6220457976449354E-4
org.esa.snap.framework.gpf.OperatorException: Cannot construct DataBuffer.
at org.esa.snap.framework.gpf.graph.GraphProcessor$GPFImagingListener.errorOccurred(GraphProcessor.java:373)
at com.sun.media.jai.util.SunTileScheduler.sendExceptionToListener(SunTileScheduler.java:1654)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(SunTileScheduler.java:929)
at javax.media.jai.OpImage.getTile(OpImage.java:1139)
at com.sun.media.jai.opimage.TranslateIntOpImage.getTile(TranslateIntOpImage.java:140)
at com.sun.media.jai.opimage.TranslateIntOpImage.getTile(TranslateIntOpImage.java:140)
at javax.media.jai.PlanarImage.getData(PlanarImage.java:2098)
at com.sun.media.jai.opimage.PeriodicShiftOpImage.computeTile(PeriodicShiftOpImage.java:127)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(SunTileScheduler.java:912)
at javax.media.jai.OpImage.getTile(OpImage.java:1139)
at javax.media.jai.PlanarImage.cobbleDouble(PlanarImage.java:3368)
at javax.media.jai.PlanarImage.getData(PlanarImage.java:2197)
at javax.media.jai.UntiledOpImage.computeTile(UntiledOpImage.java:220)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(SunTileScheduler.java:912)
at javax.media.jai.OpImage.getTile(OpImage.java:1139)
at javax.media.jai.PointOpImage.computeTile(PointOpImage.java:967)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(SunTileScheduler.java:912)
at javax.media.jai.OpImage.getTile(OpImage.java:1139)
at javax.media.jai.PlanarImage.cobbleDouble(PlanarImage.java:3368)
at javax.media.jai.PlanarImage.getData(PlanarImage.java:2197)
at javax.media.jai.PlanarImage.getData(PlanarImage.java:2029)
at javax.media.jai.RenderedOp.getData(RenderedOp.java:2277)
at org.esa.s1tbx.insar.gpf.coregistration.CoarseRegistration.getSlaveGCPShift(CoarseRegistration.java:241)
at org.esa.s1tbx.insar.gpf.coregistration.CoarseRegistration.getCoarseSlaveGCPPosition(CoarseRegistration.java:155)
at org.esa.s1tbx.sentinel1.gpf.RangeShiftOp.estimateAzRgOffsets(RangeShiftOp.java:421)
at org.esa.s1tbx.sentinel1.gpf.RangeShiftOp.access$000(RangeShiftOp.java:63)
at org.esa.s1tbx.sentinel1.gpf.RangeShiftOp$1.run(RangeShiftOp.java:310)
Caused by: java.lang.RuntimeException: Cannot construct DataBuffer.
at com.sun.media.jai.util.DataBufferUtils.constructDataBuffer(DataBufferUtils.java:140)
at com.sun.media.jai.util.DataBufferUtils.createDataBufferDouble(DataBufferUtils.java:301)
at javax.media.jai.ComponentSampleModelJAI.createDataBuffer(ComponentSampleModelJAI.java:282)
at javax.media.jai.RecyclingTileFactory.createTile(RecyclingTileFactory.java:397)
at javax.media.jai.PlanarImage.createWritableRaster(PlanarImage.java:1995)
at javax.media.jai.OpImage.createTile(OpImage.java:1991)
at com.sun.media.jai.opimage.BorderOpImage.computeTile(BorderOpImage.java:217)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(SunTileScheduler.java:912)
… 24 more

Error: Cannot construct DataBuffer.

The pair is:
S1A_IW_SLC__1SSH_20150512T080202_20150512T080229_005885_007947_84BA.zip
S1A_IW_SLC__1SSH_20150524T080203_20150524T080230_006060_007D64_21AE.zip