Presentation - MIV
Presentation - MIV
Presentation - MIV
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collet@lsiit.u-strasbg.fr<br />
iAstro Workshop - Nice Observatory<br />
16/17 October 2003<br />
Reduction using spectrum<br />
gaussian modeling<br />
(2 nd technique)<br />
Superspectral<br />
Image (N bands)<br />
Spectrum in<br />
each pixel<br />
Spectrum Gaussian<br />
Modeling<br />
(a 1 ,a 2 , … ,a M )<br />
The N original bands are<br />
reduced to M parameter<br />
images. In our case N = 48<br />
and M=6.<br />
Segmentation<br />
We choose the decomposition<br />
base as a set of M uniformly<br />
distributed gaussians on the λ<br />
interval. Then only<br />
M parameters are used to<br />
represent the spectrum on<br />
each pixel.
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