Документ взят из кэша поисковой машины. Адрес оригинального документа : http://xmm.vilspa.esa.es/sas/8.0.0/doc/omdetect/node33.html
Дата изменения: Wed Oct 22 17:31:26 2008
Дата индексирования: Tue Aug 18 14:54:00 2009
Кодировка:
Image Smoothing Algorithm XMM-Newton SAS Home Page
XMM-Newton Science Analysis System


omdetect (omdetect-5.14.2) [???]

Scattered-light algorithm Scattered-light algorithm Smoke-ring Detection Algorithm Home Index

Meta Index / Home Page / Miscellaneous Algorithms / Scattered-light algorithm

Image Smoothing Algorithm

Before the ``faint'' source detection is run the image is slightly smoothed using a low-pass derivative filter. The coefficients of the filter are-


\begin{displaymath}\left[ \begin{array}{ c c c } 0.0625 & 0.125 & 0.0625 \\ ... ....25 & 0.125 \\ 0.0625 & 0.125 & 0.0625 \end{array} \right] \end{displaymath}


XMM-Newton SOC/SSC -- 2008-10-22