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ATCOR for IMAGINE offers the two options
'De-Hazing' and 'Atmospheric/Topographic
Correction'. The de-hazing algorithm can turn an hazy data set into a crisp and neat image. Atmospheric/topographic correction results in the output of true reflectance values, in the case of a mountainous relief with greatly reduced shading of the slopes. |
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Atmospheric and Topographic Correction |
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Calculation of images with spatially constant conditions. |
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Determine atmospheric parameters (aerosol type, visibility) individually within the SPECTRA module. |
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The atmospheric database includes a wide range of pre-calculated radiative transfer runs for different weather conditions and sun angles employing the MODTRAN-4 code. |
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Generation of surface (brightness) maps for thermal band sensors. |
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ATCOR supports
these sensors: ALI-Advanced LI, ALOS AVNIR-2,
ASTER, Cartosat PAN, DMC, Formosat-2,
Formosat-2 PAN, Ikonos 2, Ikonos 2 PAN,
IRS-1A/B LISS-2, IRS-1C/D LISS-3, IRS-1C/D PAN,
IRS-P6 AWiFS, IRS-P6 LISS-3, IRS-P6 LISS-4,
KOMPSAT-2, KOMPSAT-2 PAN, Landsat-4/5 MSS,
Landsat-4/5 TM, Landsat-7 ETM+, Landsat-7 PAN,
MOS-B, OrbView PAN, OrbView-3, QuickBird,
QuickBird PAN, RapidEye Mode1,
SAC-C / MMRS, SPOT-1/2/3, MS, SPOT-1/2/3 PAN,
SPOT-4 MS, SPOT-5 MS, SPOT-5 PAN,
Worldview-2 MS. |
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Calculation of value-added products (e.g. Soil Adjusted Vegetation Index or Leaf Area Index). |
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Calculation of surface energy fluxes for thermal band sensors. |
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Calculation of the derivative products SKYVIEW and SHADOW (in ATCOR3 only). |
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Illumination/Topographic
Correction with ATCOR3 |
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Optionally a 'Haze Reduction Algorithm' can be
applied prior to the Atmospheric Correction: |
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Automatic generation of a haze mask from Tasselled Cap Coefficients. |
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Processing runs without user
interaction ( limitations
for the Haze Reduction Algorithm). |
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Usability |
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Streamlined and intuitive user interface. |
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De-hazing default parameters produce already sufficiently good results. |
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User manual contains the scientific background and an explanation of all parameters. |
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Once selected, parameters are stored in a project file and ready for later processing. |
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Sensor specifications are stored in ASCII-files, easy to update. |
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Automatic in-flight calibration tool to generate sensor
calibration files. |
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