Many users want just raw radiance data from DIRSIG. Rather than apply a built-in instrument model, they do their own post-processing of the radiance results. The "Raw" capture method can be used to achieve this. It writes raw DIRSIG results without applying any spatial or spectral integration. Here's a snapshot of the Raw Capture Method configuration dialog. We'll now work through each section. The Spectral Range controls the wavelengths for which DIRSIG will calculate and output results. In this example, DIRSIG will compute from 0.40 microns to 2.50 microns in 0.01 micron increments. The output image will have 211 bands of result data. The delta must divide the range in to a whole number of bins. For example, the range 0.4 to 0.7 microns with a 0.2 micron delta will result in an error message when DIRSIG runs. The Spatial Response controls how many results are computed and written out per detector array element....
A blog about the Digital Imaging and Remote Sensing Image Generation (DIRSIG) model featuring posts contributed by the developers. This is not a user manual and it is not a training class. But, it is a place to see what the developers are doing and a little about how we do it. So think of this as a place to learn cool tips, tricks, etc.