Accurately Correct for Atmospheric Conditions
The ENVI Atmospheric Correction Module allows you to easily remove atmospheric interference from your imagery, providing you with data that is accurate and reliable. ENVI treats each image and its atmospheric imprint individually, creating a unique model every time that is a true, reliable representation of a specific image scene. This add-on module to ENVI delivers a flexible solution with the accuracy and scientific detail you need, regardless of your application.
Advanced Methods and Algorithms
The ENVI Atmospheric Correction Module provides different analysis options depending on your specific needs, ranging from an advanced, physics-based technique, to an on-the-fly method for use in real time data processing. When all parameters relating to atmospheric conditions in an image are available to you, the MODTRAN-based Fast Line-of-Sight Atmospheric Analysis of Spectral Hypercubes (FLAASH) technique provides highly detailed, scientifically precise results. Or, if not all atmospheric parameters are available, such as in flight data correction, the Quick Atmospheric Correction (QUAC) method allows advanced atmospheric correction based on information derived from the image in an easy-to-use interface.
Both techniques were developed by Spectral Sciences Incorporated (SSI). SSI scientists are authors of widely recognized computer codes for modeling atmospheric and space environments at infrared, visible, and ultraviolet wavelengths. They are also well known for developing algorithms to remove atmospheric effects from remote spectral imagery of the Earth's surface.
The ENVI Atmospheric Correction Module works on both multispectral as well as hyperspectral data and will automatically support a wide array of common sensors.