IPP Software Navigation Tools IPP Links Communication Pan-STARRS Links

Changeset 3373


Ignore:
Timestamp:
Mar 3, 2005, 4:48:52 PM (21 years ago)
Author:
Paul Price
Message:

Fixing up some wording.

File:
1 edited

Legend:

Unmodified
Added
Removed
  • trunk/doc/misc/imageSubtraction.tex

    r3368 r3373  
    1 %%% $Id: imageSubtraction.tex,v 1.1 2005-03-03 00:38:39 price Exp $
     1%%% $Id: imageSubtraction.tex,v 1.2 2005-03-04 02:48:52 price Exp $
    22\documentclass[panstarrs]{panstarrs}
    33
     
    210210We are not using any spatial variation of the kernel.  The quantities
    211211are being measured within a 5 pixel radius aperture, centered on stars
    212 detected in the image.  We use clipping
    213 (2 iterations at 3.5$\sigma$) to obtain statistics on the population
    214 unaffected by small issues (such as very bright stars which haven't
    215 been properly masked).
     212detected in the image.  We use clipping (2 iterations at 3.5$\sigma$)
     213to obtain statistics on the population unaffected by small issues
     214(such as very bright stars which haven't been properly masked).
    216215
    217216\begin{table}[h]
     
    257256Our head-to-head comparison indicates that POIS performs a subtraction
    258257of comparable quality to ISIS, but is faster by a factor of a few.  We
    259 are yet to compare the quality of subtractions where the density of
    260 high signal-to-noise stars is low; in this regime, ISIS might provide
    261 a better subtraction than POIS, simply because the POIS kernel pixels
    262 are not correlated.
     258are yet to compare the quality of subtractions where there is a low
     259density of stars with good signal-to-noise; in this regime, ISIS might
     260provide a better subtraction than POIS, simply because the POIS kernel
     261pixels are not correlated.
    263262
    264263%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Note: See TracChangeset for help on using the changeset viewer.