ReSe Applications LLC provides Remote Sensing Software Applications for processing of multispectral and hyperspectral images.

News and Press Releases

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April 30th, 2019: New release of ATCOR-4
ATCOR-4 version 7.3 is now available

What's new:

  • The pre-classification maps of ’scene out hcw.bsq’ and ’scene haze map.bsq’ are harmonized.
  • The water, shadow, snow classification is improved. A class ’cloud shadow’ is added to the ’scene out hcw.bsq’.
  • The performance of the dehaze module is improved.
  • The BREFCOR module has been partially revised/optimized
  • The performance of the cirrus detection and correction is improved, specifically for mountaineous terrain and high altitude regions.
  • A conversion tool (visibility - AOT550nm) is available (main menu, Tools) to convert AERONET aerosol optical thickness AOT(550nm) into visibility and vice versa.
  • New modules for topographic correction have been added improving the topographic correction for the statistical-empirical correction approach.
  • Slope/Aspect and Skyview calculations have been updated for seamless batch processing.
  • Floating licenses are fully supported and proxy configurations can be set for licensing behind a firewall.
  • Includes updated GLIMPS image viewer.
  • Added optional central perspective scan angle file creation tool
  • The standard distribution moved to IDL8.7 virtual machine what improves compatibility to current operating systems (IDL8.4 based distributions are provided upon request)
  • The documentation of the User’s Manual is updated. The theoretical background of ATCOR is described in a separate document.


April 6th, 2019: New release of ATCOR-3
ATCOR-3 version 9.3 is now available

What's new:

  • The pre-classification maps of ’scene out hcw.bsq’ and ’scene haze map.bsq’ are harmonized.
  • The water, shadow, snow classification is improved. A class ’cloud shadow’ is added to the ’scene out hcw.bsq’.
  • The cloud shadow mask is based on the cloud mask, the potential shadow mask, and geometric criteria. Patches of the cloud mask are shifted according to the solar azimuth angle, and the shift vector depends on the solar zenith and azimuth angles and the cloud height. Since the cloud height is not known, the method iterates the height from 300 m above ground to 6 km, and for cirrus clouds from 6 km to 15 km. The approach can handle different cloud heights in the various parts of a scene.
  • Another pre-classification map ’scene out csw.bsq’ with only 7 basic classes is provided (clear, cloud, semi-transparent cloud, shadow, water, snow/ice, topographic shadow) as many appli- cations do not need the 22 classes of ’scene out hcw.bsq’.
  • The performance of the dehaze module is improved.
  • The performance of the cirrus detection and correction is improved, specifically for mountaineous terrain and high altitude regions.
  • A conversion tool (visibility - AOT550nm) is available (main menu, Tools) to convert AERONET aerosol optical thickness AOT(550nm) into visibility and vice versa.
  • New modules for topographic correction have been added improving the topographic correction for the statistical-empirical correction approach.
  • The scan angle dependent BREFCOR method has been included in the satellite version of ATCOR for BRDF correction of standard satellite systems such as Landsat and Sentinel 2. This includes a tool for the creation of scan angle files for satellites.
  • Additional sensors are supported: Superview-1 (Chinese instrument, 4 multispectral VNIR bands at 2 m, panchromatic at 0.5 m), Venus (French/Israel, 12 VNIR bands at 5 m).
  • Sensors with a cirrus band (Landsat-8, Sentinel-2): after importing the meta data information the ’*.inn’ file is created and the flag for cirrus removal is set (i.e. icirrus=1). However, when the dehaze preprocessing is also activated (keyword dh=1 for landsat8 batch, s2 batch) then icirrus is reset to 0 for the ATCOR run to prevent a cirrus removal for the second time.
  • Slope/Aspect and Skyview calculations have been updated for seamless batch processing.
  • Floating licenses are fully supported and Proxy configurations can be set for licensing behind a firewall.
  • Includes updated GLIMPS image viewer.
  • The standard distribution moved to IDL8.7 virtual machine what improves compatibility to current operating systems (IDL8.4 based distributions are provided upon request)
  • The documentation of the User’s Manual is updated. The theoretical background of ATCOR is described in a separate document.


February 1st: New release of GLIMPS
Glimps version 1.2 is now available

Our free GLIMPS ENVI image browser and analysis tool is available in an updated version.

What's new:

  • Updated to IDL8.7 virtual machine distribution.
  • Made compatible with current operating systems.
  • Re-established support on MacOSX Mojave and High Sierra.
  • Added new scatterplot option.
  • Added Vertical flipping option.
  • Updated user manual and help files.
  • Improved default scaling (with data ignore value present)
  • added 'PRO' functions (shadow detection and filtering) for use with PARGE/ATCOR


March 8th, 2018: New release of ATCOR-4
ATCOR-4 version 7.2 is now available

What's new:

  • The shadow and aerosol optical thickness (AOT) correction algorithm (SHAOT) has been included. It can best be applied to high spatial resolution imagery (< 5 m) imagery for atmospheric correction of spatially variable aerosol scattering effects (compare title page).
  • The image based shadow detection method has been adapted and improved in support of the SHAOT method.
  • A new function is added to sort out auxiliary inputs layers such as illumination maps, AOT distribution and water vapor distribution.
  • The aerosol optical thickness (AOT) retrieval based on dark dense vegetation DDV is improved. If water areas in the scene require a lower AOT than the dark reference (DDV) areas (to prevent negative surface reflectance), then separate AOT maps are calculated for the reference and water areas, which are finally merged.
  • For rugged terrain, the correction of the adjacency effect is modified using at-sensor radiance instead of the former method with surface reflectance. This yields better results in combination with shadow correction. For flat terrain, the former method is retained, because the difference between both approaches is negligible.
  • The dehazing algorithm (combined with decirrus) is improved:
    (a) it supports processing of hyperspectral imagery (formerly restricted to multispectral), (b) dehazing over water is switched off as if it often leads to overcorrection of water pixels, (c) the accuracy of the dehaze map to classify water pixels is improved if DEM data (slope) is available.
  • A quality confidence layer file (’scene atm qcl.bsq’) is available for an input ’scene.bsq’. The quality depends on the solar zenith angle (SZA) and aerosol optical thickness at 550 nm. In mountainous terrain, the local SZA is used. No quality confidence layer file will be written for a flat terrain scene and constant visibility.
  • A new function is added to adjust image brightness empirically to correct for cloud shadow variations in conjunction with image mosaicking.
  • Scenes with a solar zenith angle up to 75 degrees can be processed.
  • The coordinate system support has been improved for better compatibility to ENVI standards.
  • The import of global elevation data and geographic lat/lon elevation files has been updated for a better conversion to metric coordinate systems (UTM and others).
  • The GEOTIFF import function has been updated and a new image file conversion routine has been added to support the transformation of geographic Lat/Lon data to local metric coordinate systems.
  • The image display routine has been improved and new empirical correction and analysis methods have been included (change detection, dark target correction, empirical line correction).


February 18th 2018: New release of PARGE
PARGE version 3.4 is now available

The new version of PARGE supports a completely revised coordinate system conversion system, cross reference boresighting and more:

What's new:

  • Completely renewed coordinate system conversion functionality, based on ESRI/EPSG coordinate system definitions.
  • Updated Global/Geographic DEM import functions including conversion to local coordinate system.
  • New cross reference boresighting capabilities for self-consistent boresighting of overlapping image acquisitions in a cross-pattern
  • Improved automatic boresighting capabilities on Ortho images.
  • Batch processing improvements for standard systems based on ASCII batch configuration file (without need of IDL programming)
  • Optimized support for Hyperspec Nano system, including full batch support
  • New Quicklook generating function
  • Updated UNDO/REDO command (up to 10 undo steps based on internal data structure).
  • GUI updates: removed dynamic resizing, better button alignments, better image display.
  • Updated manual with description of all new functions.
  • .... many other minor updates