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[
EarthView 주요 업그레이드 내용 ]
EarthView InSAR
v4.0.3.1 (2007년
8월)
(다음은
주요 업데이트 내용을 정리한 것으로 자세한 내용은 Installation Guide를
참고 바랍니다.)
◎ Interferometric SAR Workstation 4.0의 주요 업데이트
기능
• co-registration algorithm
개선
• 윈도우 환경에서
보다 편리한 사용자 인터페이스로 개선됨
• ALOS JAXA 형식
지원 기능 추가
• 영상 나열 및 가시화
기능 개선을 포함하여 Output Products 툴을 향상시킴
• Sequential CTM 모듈
추가 - 이 기능은 pair-wise sequential interferograms을 생성할 수
있음.
• 기존의 ERS 시계열에
ENVISAT 데이터를 추가할 수 있는 듀얼 센서 모드(Dual sensor mode)가
추가됨
• 인터페이스와 처리
능력이 크게 개선됨.
EarthView v.3.1 업그레이드(2007년
5월)
EarthView APP v3.1
• Updated Radarsat database files to include RADARSAT
payload file #29.
• A problem was fixed with the Flexible Block Adaptive
Quantizer (FBAQ) implementation which eliminated a major source
of quantization noise that had been visible in low signal-to-noise
scenes. This problem had made beam boundaries more evident under
those conditions.
• A problem with stitching multiple ENVISAT scenes
together has been fixed.
• A new ICE Look-Up Table (LUT) has been provided for
ENVISAT
• The default browser for Windows has been updated
to be suitable for Windows XP.
• A problem with the pixel tool for ENVISAT Alternating
Polarization (AP) Single Look Complex (SLC) data has been fixed.
EarthView InSAR v3.1
• NEW: initial release of Coherent Target Monitoring
(CTM) optional module for multi-scene deformation analysis. CTM
now supports non-linear modelling, interferogram enhancement and
atmospheric iteration refinements
• A bug affecting the EV-InSAR geometry calculations
was fixed. All input ENVISAT pairs were affected with the exception
of ENVISAT ascending mode pairs processed with EV-APP. It is recommended
that the affected datasets be re-processed. Users who applied an
interim EV-INSAR patch prior to processing need not re-process their
ENVISAT data.
• The restriction on possible values for user defined
ellipsoids has been relaxed somewhat.
• Corrected an issue where the external DEM was being
used rather than the internally generated DEM when using "DEM
mode with External DEM".
• Tiepoint reporting during refinement has been made
more concise.
• The polynomial fitting order for flat Earth phase
modeling has been increased from bicubic to 4X4. Better results
have been noted following this change. The fitting order for dr/dh,
dphi/dh etc. has also increased. Correspondingly, the number of
required grid points has increased to 32X32 by default. As a result,
the keen observer will notice differences in the interferograms
produced by v3.1 as compared to v3.0 and earlier.
• The calculation of the sign of the reported perpendicular
baseline has been adjusted to yield a sign consistent with DESCW.
• The option to input external DEMs in units other
than metres (and specify a scale factor relating those units to
metres) has been fixed.
EV-Stereo
• NEW: A SAR ortho-rectification module was added to EV-Stereo
v3.1. The final output products now include a DEM image and ortho-rectified
master and slave images.
• Generic Mapping Tools (GMT 3.0 and GMT 3.3.4) were
upgraded to GMT 4.0b. This fixed a bug in gridding and improved
the speed of the gridding process.
• Several bugs were fixed for ENVISAT metadata extraction.
EV-DEMED
• NEW: Initial release of the DEM editing workstation. This
new product was designed to significantly enhance the production
and utility of large area (i.e. multi-image) DEMs produced from
spaceborne SAR data. It supports the merging of several DEMs to
create one composite DEM, edit "spikes" and "wells",
re-project and format merged DEMs, and automatically delineate and
correct elevations of water bodies.
OpenEV
• NEW: Significant new command-line improvements to
the Python Shell
• NEW: Spreadsheet style tabular shapes grid tool
• NEW: PCIDSK format support (partial) for improved
interoperability
EarthView v.3.1 출시(2004년
5월)
이번 버전에는 EV-InSAR의 선택사양인 CTM(Coherent Target
Monitoring)모듈과 DEM을 편집하고 모자이크 할 수 있는 EV-DEMED출시
되었습니다. 주요 업그레이드 내용은 아래와 같습니다.
EarthView APP v3.1
· Updated Radarsat database files to include RADARSAT
payload file #29.
· A problem was fixed with the Flexible Block Adaptive
Quantizer (FBAQ) implementation which eliminated a major source
of quantization noise that had been visible in low signal-to-noise
scenes. This problem had made beam boundaries more evident under
those conditions.
· A problem with stitching multiple ENVISAT scenes together
has been fixed.
· A new ICE Look-Up Table (LUT) has been provided for
ENVISAT
· The default browser for Windows has been updated to
be suitable for Windows XP.
· A problem with the pixel tool for ENVISAT Alternating
Polarization (AP) Single Look Complex (SLC) data has been fixed.
EarthView InSAR v3.1
· NEW: initial release of Coherent Target Monitoring (CTM)
optional module for multi-scene deformation analysis. CTM now supports
non-linear modelling, interferogram enhancement and atmospheric
iteration refinements
· A bug affecting the EV-InSAR geometry calculations was
fixed. All input ENVISAT pairs were affected with the exception
of ENVISAT ascending mode pairs processed with EV-APP. It is recommended
that the affected datasets be re-processed. Users who applied an
interim EV-INSAR patch prior to processing need not re-process their
ENVISAT data.
· The restriction on possible values for user defined
ellipsoids has been relaxed somewhat.
· Corrected an issue where the external DEM was being
used rather than the internally generated DEM when using "DEM
mode with External DEM".
· Tiepoint reporting during refinement has been made more
concise.
· The polynomial fitting order for flat Earth phase modeling
has been increased from bicubic to 4X4. Better results have been
noted following this change. The fitting order for dr/dh, dphi/dh
etc. has also increased. Correspondingly, the number of required
grid points has increased to 32X32 by default. As a result, the
keen observer will notice differences in the interferograms produced
by v3.1 as compared to v3.0 and earlier.
· The calculation of the sign of the reported perpendicular
baseline has been adjusted to yield a sign consistent with DESCW.
· The option to input external DEMs in units other than
metres (and specify a scale factor relating those units to metres)
has been fixed.
EV-Stereo v3.1
· NEW: A SAR ortho-rectification module was added to EV-Stereo
v3.1. The final output products now include a DEM image and ortho-rectified
master and slave images.
· Generic Mapping Tools (GMT 3.0 and GMT 3.3.4) were upgraded
to GMT 4.0b. This fixed a bug in gridding and improved the speed
of the gridding process.
· Several bugs were fixed for ENVISAT metadata extraction.
EV-DEMED v3.0
· NEW: Initial release of the DEM editing workstation.
This new product was designed to significantly enhance the production
and utility of large area (i.e. multi-image) DEMs produced from
spaceborne SAR data. It supports the merging of several DEMs to
create one composite DEM, edit "spikes" and "wells",
re-project and format merged DEMs, and automatically delineate and
correct elevations of water bodies.
OpenEV v1.8
· The ability to take advantage of accelerated graphics
hardware to allow rapid of 2D/3D datasets
· Rapid zoom facilitated through multiple level-of-detail
data handling
· The ability to handle multiple channels of both real
and complex data
· Extendable support for vector data
· Extendable data I/O capabilities to provide access to
commonly used formats and meta-data.
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