EV-InSAR V2.1.3 (Patch Release)
Release Date: July 11, 2003
Changes included in the July 11, 2003 patch for EV-InSAR (version 2.1.3)
- A bug introduced in EV-InSAR v2.1.2 regarding the handling of the
orbital state vectors in the case where they do no bracket the scene
has been fixed.
- A bug introduced in EV-InSAR v2.1.2 involving the grooming of the state
vectors has been fixed. The number of iterations required should now
be as it was in versions previous to v2.1.2.
- Intermediate georeferencing has been added to the images generated
during phase unwrapping. This fixes some visualization issues that
can occur with the phase unwrapping edit tool where the output images from
phase unwrapping do not have georeferencing information.
- When the ellipsoid for the external DEM is not specified, an error
message is now displayed.
- Fixed a bug where the InSAR GUI did not always properly save the
master-slave bias detection method when changed.
- Improvements to external DEM ingest to lower the amount of memory
required when extracting large ROI.
- Fixed a bug introduced in EV-InSAR v2.1.2 for residual topographic
phase removal on a run that included an external DEM mask.
- Improvements have been made so that the appropriate images are produced
for a given processing step to allow the tools for that step to launch.
These changes affect DEM with external DEM processing mode only.
Changes included in the April 24, 2003 update of EV-InSAR (version 2.1.2)
- The manual tiepoint marking tools have a new look and feel, and contain
several improvements. The user is referred to the product documentation
for specific details.
- "Ghost cursors" have been added to all linked images (in inspect windows
or tools) to simplify identification of common pixels between views.
- Approximate georeferencing information has been added to most
intermediate images.
- Specification of external imagery for 2-pass and 4-pass runs has been
simplified. The external run is no longer specified for 4-pass runs,
but rather the external DEM, and optionally the external Master SAR and
DEM mask images. These external images are no longer restricted to MFF2
format and no longer need to be copied into the run. The user is referred
to the product documentation for specific details. When external imagery
is specified, if the imagery was from an external run and the names have
been preserved, the other images are auto-detected.
- The way phase to height conversion is modelled has been changed. This
fixes a problem where artifacts in the modelling of topographic phase
were noted in cases of very small baselines where B_Perp changed sign
over the ROI. A bug was also corrected to slightly correct the residual
topographic phase removal process.
- The Run Monitor Interface (RMI) has been modified to fix several problems
with messages either being reported multiple times or being lost. The
interface has been simplified to use a file for message exchange rather
than sockets. Error handling and logging of status messages has also been
improved. It is worth noting that "rsh" is no longer required. The PXCPD
window has been removed, and log messages now appear in the shell window.
- Dual CPU processing mode (for owners of the dual CPU version) now works
under Windows XP, provided MPI is properly configured. Please refer to
the software installation notes for further details.
- Support has been added for left looking Radarsat datasets.
- External DEMs in the polar stereographic projection may now be ingested.
- Fixed a bug that occurred with external DEM ingest when a manual bias
was specified. This only affects users of EV-InSAR v2.1.1.
- A link to a "Frequently Asked Questions (FAQ)" page on the Atlantis web
site has been added to the Help menu in the main GUI.
- Improved the conciseness and clarity of phase unwrapping messages.
- The external DEM scale factor option has been disabled (set to 1).
- Added a warning dialog box for quitting the GUI while processing or
loading "already active" runs.
- Errors and exceptions are now presented to the user inside a dialog
window and saved to the log file.
- A history of the last five runs loaded by the InSAR GUI in now kept
under the "File" drop down menu for quick reference.
- In most cases, specifying only one CEOS file during input data
specification is now sufficient. For common CEOS naming conventions,
the other files in the dataset and the system parameters will be
auto-detected.
- The JDEM ingest tool has been moved to the main GUI (under Utilities).
- The new OpenEV image format conversion tool has been added to the main
GUI (under Utilites).
- A new orbit manager tool has been added to the main GUI (under Utilities)
to make the usage of the DELFT orbits easier.
- Tutorial 5 has been changed to use a new dataset.
Changes included in the January 2, 2003 patch for EV-InSAR (version 2.1.1)
- An issue where certain recipe files were sometimes corrupted when saving
a run has been fixed.
- Master and Slave SAR filenames are now automatically selected after
entering a single file if the pattern matches one of the standard naming
conventions.
- The "New run" file selection dialog box has been simplified.
- The default setting for "Scene Extraction" has been changed to "Process
Overlapping Region".
- The default height correction fit order has been changed to bilinear
in the DEM Correct tool.
- The enhanced interferogram and coherence images are now displayed in
two linked views when using the "Inspect" button for the "Enhance
interferogram phase" processing step.
- Fixed an issue where zooming with two linked views in the tiepoint marking
tools did not function correctly.
- The external DEM and external DEM mask files are no longer restricted
to a fixed directory within the run, and can now be placed outside the
run.
- Fixed an issue where the DEM height value was not correctly reported
in the "Quality" report generated by the DEM Correct tool.
- Fixed several issues where the interactive tools sometimes did not
properly update the results after processing completed.
- An issue with demo licenses expiring several days prematurely has been
fixed.
- An issue where shared library import errors were occuring at run-time
for Solaris users has been fixed. (Solaris Only)
Changes included in the June 28, 2002 update of EV-InSAR (version 2.1)
- The ability to ingest ENVISAT data has been added, provided the software
is authorized for the ENVISAT module. Only one ENVISAT file for Master
and Slave can be ingested at one time. Data from Beam modes IS1 to IS7
is supported.
- An issue where the phase would sometimes reverse after residual
topographic phase removal from the tool has been resolved. In
differential runs, this could cause the direction of a change feature to
be incorrect.
- A bug where the wrong change product was sometimes generated has been
resolved.
- An offset of PI, introduced into the enhanced interferogram has been
fixed, so that the Interferogram and Enhanced Interferogram should have
the same phase offset.
- Residual phase removal on Radarsat scenes now works correctly.
- The manual bias option for Coregistration Analysis has been fixed.
- A display problem for some phase images has been fixed. Colours
are now displayed properly.
- Terrain correction and geocoding of the Enhanced Interfogram is
now done using Sinc Interpolation. This fixes a problem where pixels
near 0 or two PI in phase were not resampled correctly.
- A problem that occasionally occurred when ingesting External DEMs in
a UTM projection has been fixed.
- Several accuracy improvements have been made to the generation and
removal of topographic phase, the generation of change products, and
the removal of residual phase.
- Slant Range products are now available for run types where an External
DEM is present and differential runs.
- The Simulated SAR image is now properly generated for runs using ESRIN
CEOS formats as input.
- Automatic bias detection is always done by default. When bias detection
fails, the run will try and continue, as if this option was not
selected.
- The sign of the change products now respect the respective times of the
Master/Slave SAR images.
- The IUGC75 ellipsoid has been added to the list of available ellipsoids.
- User defined ellipsoids may now be specified from the GUI.
- Several issues with the product generation GUI have been resolved. It
is no longer necessary to specify the Extracted Master image.
- The full scene ROI is now mapped properly in the presence of an External
DEM, boundary checking is done in all cases and the ROI trimmed so as to
always contain valid data.
- Azimuth spectral filtering has had several issues resolved.
- Improvements to the usage of phase slope generation have been made.
Changes included in the December 17, 2001 update of EV-InSAR (version 2.0.2)
- Several issues with CEOS ingest and auto-detect have been fixed.
Missing parameters in the CEOS files are sometimes replaced by
defaults to improve robustness. Warnings will be issued when
parameters are replaced.
- A DEM extraction tool has been added (currently supports only Japanese
JDEM format)
- Problems using UTM projections in the southern hemisphere
have been corrected.
- Ensured the generation of an image required by the residual
topographic phase removal tool
- Changing the coregistration parameters now has an effect
on the run, if the coregistered slave SAR image has already
been generated.
- The option to save a run as a different name now copies all required
files.
- Deleting tiepoints/GCPs in the tiepoint tools and DEM Correct tool no
longer causes errors upon adding new points. Tiepoints are now located
at the correct position on the image to be coregistered.
- GCPs are now correctly mapped from TCSR to TSR space in DEM Correct.
Excluding elevation points when running statistics no longer causes
an error. An error with the colour coding of GCPs was also corrected.
- In 3-pass mode, residual topographic phase removal from the tool
now finds the external DEM in the external run for use.
- The option whether to use the geocoding mapping computed using GCPs, or
the one computed without using GCPs.
- A new tool for residual phase removal has been added. To access this
tool, an external DEM must be present, and 'Enable Baseline Refinement'
must be selected at the start of the run. The new tool is available
from the 'Unwrap interferogram phase' tools menu. After successful use
of the tool, the enhanced interferogram is updated, and unwrapping
will need to be re-run. This tool has only been tested for 2-pass
differential interferometry using JERS-1 data.
- Interferogram self tests may now be performed successfully without
generating an error message.
- Changes to OpenEV have added enhanced control over data scaling and
other improvements.
- An issue with the DELFT orbit ingest mechanism has been fixed, where
incorrect state vector times were sometimes derived.
- The commands importmff and exportmff are now available from the
command line for Windows users.
- Corrected the defaults for minimum spatial and interferometric overlap
Changes included in the August 14th, 2001 update of EV-InSAR (version 2.0.1)
- New code base developed with pipeline and parallel processing
capability
- New viewer technology which leverages commodity hardware acceleration
capabilities (OpenGL)
- New look for the main GUI and user interactive tools
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