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| Paper: |
Background Fluctuation Analysis from the Multiscale Entropy |
| Volume: |
172, Astronomical Data Analysis Software and Systems VIII |
| Page: |
399 |
| Authors: |
Gastaud, R.; Starck, J.-L.; Pierre, M. |
| Abstract: |
The entropy measurement has been proposed for image restoration several years ago in astronomy. Different entropies have been used for this purpose. The multiscale entropy has the advantage to introduce a noise modeling, and the concept of information at different level of resolution. It can be used for tracking the presence of signal in a noisy data set. We show in this paper that it can also be used for background fluctuations analysis. A range of examples illustrates the results. We finally apply this method on X-ray simulations (XMM-EPIC) of diffuse large scale structure emission in order to discriminate different cosmological models. |
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